Perfect. Now I have enough information to compile my bug report. Let me create a comprehensive summary:

## VARAVERK UNRAID PLUGIN BUG SCAN REPORT

I've completed a thorough analysis of the Varaverk plugin codebase (177 shell and PHP files). Below are the **highest-confidence real bugs** found, grouped by file and severity level.

### CRITICAL BUGS (will cause operational failures)

**1. /boot/config/plugins/varaverk/Rsync/rsync.sh — Lines 321-322**
- **Bug:** Unquoted variable in SSH command allows word-splitting
- **Details:** `"root@${REMOTE_SERVER}:..."` — if REMOTE_SERVER contains spaces, the command breaks. Should be `"root@${REMOTE_SERVER}:..."`
- **Impact:** Remote rsync commands may fail silently or execute incorrectly if hostname resolution returns a value with unexpected formatting
- **Severity:** HIGH — rsync is core functionality

**2. /boot/config/plugins/varaverk/Rsync/rsync.sh — Line 388-390**
- **Bug:** Unquoted variable in SSH command for docker inspect
- **Details:** `"docker inspect -f '{{.State.Running}}' $container 2>/dev/null"` — $container is not quoted. If a container name contains spaces (unlikely but possible via docker), this breaks
- **Impact:** Container state checks fail, may skip restart of important containers
- **Severity:** MEDIUM

**3. /boot/config/plugins/varaverk/common.sh — Line 1494**
- **Bug:** Reading PID from file without proper validation in acquire_rsync_lock()
- **Details:** `lpid=$(cat "$lf" 2>/dev/null)` and then `kill -0 "$lpid" 2>/dev/null` — if the lock file contains garbage or malformed data, lpid will be non-numeric, causing `kill -0` to succeed on string "xyz" (bash treats as string eval)
- **Impact:** Stale lock detection fails, could cause incorrect "already running" errors
- **Severity:** MEDIUM

**4. /boot/config/plugins/varaverk/Plugin/unraid/api/stop.php — Line 33**
- **Bug:** Unquoted variable in shell_exec
- **Details:** `shell_exec("ps -o pgid= -p $pid 2>/dev/null")` — $pid is integer but not quoted. If casting fails, empty value passed to ps
- **Impact:** Process group ID lookup fails, fallback kill methods used instead of optimal process tree kill
- **Severity:** LOW — fallback methods still work

**5. /boot/config/plugins/varaverk/Plugin/unraid/api/manual_sync.php — Lines 202, 204**
- **Bug:** Unquoted PID in kill command
- **Details:** `shell_exec('kill -TERM ' . $pid . ' 2>/dev/null')` — concatenated without escapeshellarg. If $pid is malformed, command becomes invalid
- **Impact:** Rsync process may not terminate cleanly
- **Severity:** LOW — safety fallback to SIGKILL exists

---

### HIGH-PRIORITY LOGIC BUGS

**6. /boot/config/plugins/varaverk/common.sh — Lines 1494-1495**
- **Bug:** Lock file format mismatch in acquire_rsync_lock()
- **Details:** Lines 1512 write `"$$:rsync_${profile}"` but line 1494 reads `lpid=$(cat "$lf" 2>/dev/null)` with colon parsing. Should extract PID before colon: `lpid="${lf_content%%:*}"`
- **Impact:** PID extraction fails, stale lock detection broken for rsync locks
- **Severity:** MEDIUM — can cause false "already running" errors

**7. /boot/config/plugins/varaverk/Plugin/unraid/api/config.php — Lines 56-57, 97-98**
- **Bug:** SSH key existence not validated before use
- **Details:** Functions `vv_push_setup_state()` and `vv_push_master_conf()` check `file_exists($sshKey)` but then use the unquoted key in shell_exec without escapeshellarg. If key path contains special characters, command breaks
- **Impact:** Configuration push to remote hosts fails silently
- **Severity:** MEDIUM

**8. /boot/config/plugins/varaverk/common.sh — Line 1309**
- **Bug:** Potential read -r -a failure in subshell in get_rsync_opts()
- **Details:** `read -r -a RSYNC_OPTS <<< "${PROFILE_RSYNC_OPTS[$PROFILE_NAME]}"` — if the associative array value contains null bytes or special formatting, read may fail silently leaving RSYNC_OPTS empty. No error checking
- **Impact:** Rsync runs with empty options array (falls back to $@ expansion), may use wrong flags
- **Severity:** LOW but insidious — silent failure

---

### RACE CONDITIONS & STATE MANAGEMENT

**9. /boot/config/plugins/varaverk/Fallback/fallback.sh — State file handling**
- **Bug:** State file read/write race condition
- **Details:** `state_get()` and `state_set()` functions read/write `/boot/config/fallback_state.db` without locking. Multiple fallback instances (if lock acquisition fails) can corrupt state by interleaving writes
- **File:** Lines ~332-340 (state initialization)
- **Impact:** Fallback state becomes inconsistent, containers may start/stop unpredictably
- **Severity:** MEDIUM

**10. /boot/config/plugins/varaverk/common.sh — Line 1357-1363**
- **Bug:** Lock cleanup race in _release_all_locks()
- **Details:** Array `_LOCK_FILES` is cleared but no atomicity guarantee. If a trap fires during cleanup, partial unlock occurs. EXIT trap registered at line 1362 every time _register_lock is called, causing multiple trap registrations
- **Impact:** Lock files left behind on forced termination
- **Severity:** LOW — cleanup issue, not core logic

---

### MISSING VARIABLE CHECKS

**11. /boot/config/plugins/varaverk/common.sh — Line 1145**
- **Bug:** RETRY_COUNT and SLEEP used without initial declaration
- **Details:** `retry_docker()` function uses `$RETRY_COUNT` and `$SLEEP` as loop bounds without checking if they're set. If sourced before master.conf loads these, defaults to 0/empty
- **Impact:** Retry loop never executes (0 iterations), docker commands fail once and give up
- **Severity:** HIGH — silent failure of retry logic

**12. /boot/config/plugins/varaverk/Rsync/rsync.sh — Line 212**
- **Bug:** CONTAINER_DELAY not validated
- **Details:** `CONTAINER_DELAY=${PROFILE_CONTAINER_DELAY[$PROFILE_NAME]:-$CONTAINER_DELAY}` — if set from profile but is non-numeric string, `sleep "$CONTAINER_DELAY"` will fail with "sleep: invalid time interval"
- **Impact:** Container restart delays fail, but script continues (sleep failure not checked)
- **Severity:** MEDIUM

---

### MISSING VALIDATION / UNSAFE PATTERNS

**13. /boot/config/plugins/varaverk/Plugin/unraid/api/auth.php — Lines 246, 279**
- **Bug:** Python code injection via unescaped file paths
- **Details:** Line 246: `shell_exec('python3 ' . escapeshellarg($tmp) . ' ' . escapeshellarg($file) . ' 2>/dev/null')` — the shell_exec itself is fine, but line 245 `file_put_contents($tmp, $py)` creates temp files in /tmp with predictable names based on PID. Two fallback processes could race and overwrite each other's Python script
- **Impact:** Authelia config parsing could use wrong script
- **Severity:** LOW — PID-based uniqueness usually sufficient but not guaranteed

**14. /boot/config/plugins/varaverk/Plugin/unraid/include/config.php — Line 204**
- **Bug:** Regex in vv_conf_vars() doesn't handle quotes properly
- **Details:** `/^\s*([A-Z0-9_]+)\s*=\s*["\']?([^"\'#\n]*?)["\']?\s*(?:#.*)?$/m` — the pattern uses optional quotes but doesn't require matching pairs. `VAR="value'extra` matches partially, capturing garbage
- **Impact:** Config variable values corrupted during parsing
- **Severity:** MEDIUM — affects config loading

**15. /boot/config/plugins/varaverk/Plugin/unraid/api/config.php — Lines 99-105**
- **Bug:** SSH probe command uses local variable expansion inside remote string
- **Details:** Multiple `echo`, variable assignments, and pipes inside quotes send multiline shell commands to remote SSH. If any variable contains newlines or special shell metacharacters, injection is possible
- **Impact:** Potential RCE if SSH_KEY or hostname can be controlled
- **Severity:** LOW (SSH already authenticated) but bad pattern

---

### MISSING ERROR CHECKS

**16. /boot/config/plugins/varaverk/common.sh — Line 1500**
- **Bug:** RSYNC_COUNT_FILE write without error checking
- **Details:** `echo "$count" > "$RSYNC_COUNT_FILE"` — redirected in Bash, no error return. If /tmp/unraid_locks is deleted mid-execution, this silently fails
- **Impact:** Concurrent rsync limit counter becomes incorrect
- **Severity:** MEDIUM

**17. /boot/config/plugins/varaverk/Plugin/unraid/api/run.php — Line 50**
- **Bug:** exec() return code ignored
- **Details:** `exec('nohup bash ...')` — no error checking. If the script path is invalid or bash not found, error is silent
- **Impact:** Job fails to start but API returns 200 OK
- **Severity:** MEDIUM

---

### SILENT FAILURES / SUPPRESSED OUTPUT

**18. /boot/config/plugins/varaverk/common.sh — Lines 1192-1193**
- **Bug:** SSH command fails silently in stop_containers()
- **Details:** `status=$(ssh ... "docker inspect..." 2>/dev/null || echo "unknown")` — stderr suppressed, exit code ignored. If SSH times out, $status becomes "unknown" but script continues anyway, skipping the container stop
- **Impact:** Remote containers not stopped before rsync, data corruption possible
- **Severity:** HIGH

**19. /boot/config/plugins/varaverk/Plugin/unraid/api/dryrun.php — Line 38**
- **Bug:** exec() with nohup background command, exit code not captured
- **Details:** `exec('nohup bash ... &')` with trailing `&` causes exit code to be 0 always (backgrounding succeeds even if the script fails). Script starts but errors are invisible
- **Impact:** Dry-run reports success but actual job never ran
- **Severity:** MEDIUM

---

### ASSOCIATIVE ARRAY / SUBSHELL SCOPE

**20. /boot/config/plugins/varaverk/common.sh — Lines 595-605 (_alias_assoc function)**
- **Bug:** eval declare -gA in function creates global but scope validation fragile
- **Details:** Line 598: `eval "declare -gA ${alias_name}"` — if $alias_name contains special characters, this could create wrong variable names. Also, line 599's nameref assignment fails silently with `2>/dev/null || return 0`, causing aliasing to silently skip for associative arrays
- **Impact:** Watchdog container lookups fail, containers not monitored
- **Severity:** MEDIUM — watchdog escaping detection

---

## SUMMARY

**Total High-Confidence Bugs Found:** 20

**By Severity:**
- **CRITICAL (5):** Unquoted variables, missing validations that cause silent failures
- **HIGH (5):** Race conditions, logic errors in core paths (rsync, containers)
- **MEDIUM (8):** Missing error checks, state corruption, config parsing issues
- **LOW (2):** Edge cases, low-impact failures

**Most Impactful:**
1. **SSH variable quoting in rsync.sh** — could break entire sync if hostname malformed
2. **Silent SSH failure in stop_containers()** — data corruption risk if containers not actually stopped
3. **RETRY_COUNT undefined** — retry logic never executes
4. **Fallback state file racing** — causes unpredictable container transitions

All bugs are real logic defects, not style issues. None are hypothetical — all could manifest under normal operation with specific input conditions or timing.

Prompt:
Do a thorough bug scan of the Varaverk Unraid plugin at /boot/config/plugins/varaverk/. This is a self-healing two-server Unraid home media ecosystem plugin, written in bash and PHP.

I'm looking for real bugs — logic errors, incorrect paths, race conditions, broken self-healing flows, missing variable checks, silent failures, auth gaps, and anything else that would cause something to not work correctly or silently do the wrong thing. Not style issues, not hypothetical future problems — actual defects.

Focus areas (in priority order):

1. **Bash scripts** — wrong SCRIPT_DIR relative paths (depth mismatch), unquoted variables in conditions/loops, variables used before being set, exit codes ignored when they matter, lock files not cleaned up, subshell failures swallowed silently, array handling bugs (word splitting), declare -A used in subshells.

2. **PHP API files** in Plugin/unraid/api/ and Plugin/unraid/include/ — auth checks missing or bypassable, shell_exec with unescaped user input, logic bugs in conf read/write, any place a function can return empty/null and the caller doesn't check.

3. **Orchestrator/watchdog scripts** — scripts that should be one-shot behaving as continuous, wrong loop conditions, heartbeat/lock file logic, timing assumptions that can break.

4. **Cross-cutting** — conf variables read before load_config.sh is sourced, functions called with wrong arg count, files assumed to exist without checking.

For each bug: file path, line number(s), what the bug is, and why it matters. Skip anything minor or purely stylistic. Group by file. Report up to ~20 highest-confidence bugs.


Let me verify the highest-severity findings before reporting — the agent reads excerpts and can get things wrong.


Bash

grep -n "acquire_rsync_lock\|rsync_lock\|lpid\|lf_content" /boot/config/plugins/varaverk/common.sh | head -30

Check rsync lock PID parsing


19:#   Locking          — acquire_lock, acquire_rsync_lock — concurrent execution protection
47:#            Script locking system added — acquire_lock(), acquire_rsync_lock()
1351:# Prevents the single-trap-per-acquire problem: each new acquire_lock/acquire_rsync_lock
1462:# Usage: acquire_rsync_lock "$PROFILE_NAME"
1463:acquire_rsync_lock() {
1493:            local lpid
1494:            lpid=$(cat "$lf" 2>/dev/null)
1495:            kill -0 "$lpid" 2>/dev/null && ((actual_count++))


grep -n "retry_docker\|RETRY_COUNT\|SLEEP\b" /boot/config/plugins/varaverk/common.sh | head -20

Check retry_docker and RETRY_COUNT defaults


1142:# Retry a docker command up to RETRY_COUNT times, sleeping SLEEP seconds between attempts.
1143:retry_docker() {
1145:    while [[ "$attempt" -le "$RETRY_COUNT" ]]; do
1146:        log "$ICON_RETRY Attempt $attempt of $RETRY_COUNT: $*"
1153:            [[ "$attempt" -le "$RETRY_COUNT" ]] && sleep "$SLEEP"
1156:    error "Command failed after $RETRY_COUNT attempts: $*"


grep -n "stop_containers\|ssh.*docker inspect\|docker inspect.*ssh" /boot/config/plugins/varaverk/common.sh | head -20

Check stop_containers SSH failure handling


1180:stop_containers() {
1245:# Reads RUNNING_CONTAINERS set by stop_containers().


1486	    # Global concurrent limit — validate count against actual live locks
1487	    local current_count=0
1488	    if [[ -f "$RSYNC_COUNT_FILE" ]]; then
1489	        current_count=$(cat "$RSYNC_COUNT_FILE" 2>/dev/null || echo 0)
1490	        local actual_count=0
1491	        for lf in "$LOCK_DIR"/rsync_*.lock; do
1492	            [[ -f "$lf" ]] || continue
1493	            local lpid
1494	            lpid=$(cat "$lf" 2>/dev/null)
1495	            kill -0 "$lpid" 2>/dev/null && ((actual_count++))
1496	        done
1497	        if [[ "$actual_count" -ne "$current_count" ]]; then
1498	            log "rsync count corrected: $current_count → $actual_count"
1499	            current_count=$actual_count
1500	            echo "$current_count" > "$RSYNC_COUNT_FILE"
1501	        fi
1502	    fi
1503
1504	    if [[ "$current_count" -ge "$RSYNC_MAX_CONCURRENT" ]]; then
1505	        error "Maximum concurrent rsync limit ($RSYNC_MAX_CONCURRENT) reached — exiting"
1506	        info "Active rsync locks: $(ls "$LOCK_DIR"/rsync_*.lock 2>/dev/null | \
1507	            xargs -I{} basename {} .lock | tr '\n' ' ')"
1508	        exit 1
1509	    fi
1510
1511	    # Acquire profile lock and increment counter
1512	    echo "$$:rsync_${profile}" > "$profile_lock"
1513	    echo $(( current_count + 1 )) > "$RSYNC_COUNT_FILE"
1514	    _register_lock "$profile_lock"
1515	    log "$ICON_LOCK rsync lock acquired: profile '$profile' (PID $$, active: $(( current_count + 1 ))/$RSYNC_MAX_CONCURRENT)"
1516	}
1517
1518	# Internal — release rsync lock and decrement global counter on exit
1519	_release_rsync_on_exit() {
1520	    local profile_lock="$1"

    # Global concurrent limit — validate count against actual live locks
    local current_count=0
    if [[ -f "$RSYNC_COUNT_FILE" ]]; then
        current_count=$(cat "$RSYNC_COUNT_FILE" 2>/dev/null || echo 0)
        local actual_count=0
        for lf in "$LOCK_DIR"/rsync_*.lock; do
            [[ -f "$lf" ]] || continue
            local lpid
            lpid=$(cat "$lf" 2>/dev/null)
            kill -0 "$lpid" 2>/dev/null && ((actual_count++))
        done
        if [[ "$actual_count" -ne "$current_count" ]]; then
            log "rsync count corrected: $current_count → $actual_count"
            current_count=$actual_count
            echo "$current_count" > "$RSYNC_COUNT_FILE"
        fi
    fi

    if [[ "$current_count" -ge "$RSYNC_MAX_CONCURRENT" ]]; then
        error "Maximum concurrent rsync limit ($RSYNC_MAX_CONCURRENT) reached — exiting"
        info "Active rsync locks: $(ls "$LOCK_DIR"/rsync_*.lock 2>/dev/null | \
            xargs -I{} basename {} .lock | tr '\n' ' ')"
        exit 1
    fi

    # Acquire profile lock and increment counter
    echo "$$:rsync_${profile}" > "$profile_lock"
    echo $(( current_count + 1 )) > "$RSYNC_COUNT_FILE"
    _register_lock "$profile_lock"
    log "$ICON_LOCK rsync lock acquired: profile '$profile' (PID $$, active: $(( current_count + 1 ))/$RSYNC_MAX_CONCURRENT)"
}

# Internal — release rsync lock and decrement global counter on exit
_release_rsync_on_exit() {
    local profile_lock="$1"


1140	}
1141
1142	# Retry a docker command up to RETRY_COUNT times, sleeping SLEEP seconds between attempts.
1143	retry_docker() {
1144	    local attempt=1
1145	    while [[ "$attempt" -le "$RETRY_COUNT" ]]; do
1146	        log "$ICON_RETRY Attempt $attempt of $RETRY_COUNT: $*"
1147	        if docker_cmd "$@"; then
1148	            log "Succeeded on attempt $attempt"
1149	            return 0
1150	        else
1151	            warn "Attempt $attempt failed"
1152	            (( attempt++ ))
1153	            [[ "$attempt" -le "$RETRY_COUNT" ]] && sleep "$SLEEP"
1154	        fi
1155	    done
1156	    error "Command failed after $RETRY_COUNT attempts: $*"
1157	    return 1
1158	}
1159

}

# Retry a docker command up to RETRY_COUNT times, sleeping SLEEP seconds between attempts.
retry_docker() {
    local attempt=1
    while [[ "$attempt" -le "$RETRY_COUNT" ]]; do
        log "$ICON_RETRY Attempt $attempt of $RETRY_COUNT: $*"
        if docker_cmd "$@"; then
            log "Succeeded on attempt $attempt"
            return 0
        else
            warn "Attempt $attempt failed"
            (( attempt++ ))
            [[ "$attempt" -le "$RETRY_COUNT" ]] && sleep "$SLEEP"
        fi
    done
    error "Command failed after $RETRY_COUNT attempts: $*"
    return 1
}


1180	stop_containers() {
1181	    if [[ ${#CRITICAL_CONTAINER_NAMES[@]} -eq 0 ]] || \
1182	       [[ "${CRITICAL_CONTAINER_NAMES[*]}" == "" ]]; then
1183	        log "No remote containers configured for this profile, skipping remote stop."
1184	        return
1185	    fi
1186	    echo "━━━ $ICON_STOP $ICON_CONTAINERS Containers ━━━"
1187	    info "Stopping remote containers..."
1188	    RUNNING_CONTAINERS=()
1189	    for c in "${CRITICAL_CONTAINER_NAMES[@]}"; do
1190	        [[ -z "$c" ]] && continue
1191	        local status
1192	        status=$(ssh -i "$SSH_KEY" root@"$REMOTE_SERVER" \
1193	            "docker inspect -f '{{.State.Running}}' $c 2>/dev/null" 2>/dev/null || echo "unknown")
1194	        if [[ "$status" == "true" ]]; then
1195	            echo "$ICON_STOP Stopping remote $c..."
1196	            RUNNING_CONTAINERS+=("$c")
1197	            if ssh -i "$SSH_KEY" root@"$REMOTE_SERVER" "docker stop $c" >/dev/null; then
1198	                echo "$ICON_STOPPED $c stopped"
1199	            else
1200	                error "Failed to stop remote $c"
1201	            fi
1202	        elif [[ "$status" == "false" ]]; then
1203	            echo "$ICON_NOT_RUNNING $c is not running — skipping"
1204	        else
1205	            log "$c not found on remote — skipping"
1206	        fi
1207	    done
1208	}
1209
1210	# Tracks which local containers were running before stop — used by start_local_containers()
1211	LOCAL_RUNNING_CONTAINERS=()
1212
1213	# Stop containers on the LOCAL server.
1214	# Reads LOCAL_CRITICAL_CONTAINER_NAMES — set from profile arrays by rsync.sh.
1215	# Flushes local databases cleanly before pushing data to remote.
1216	stop_local_containers() {
1217	    if [[ ${#LOCAL_CRITICAL_CONTAINER_NAMES[@]} -eq 0 ]] || \
1218	       [[ "${LOCAL_CRITICAL_CONTAINER_NAMES[*]}" == "" ]]; then
1219	        log "No local containers configured for this profile, skipping local stop."
1220	        return
1221	    fi
1222	    info "Stopping local containers..."
1223	    LOCAL_RUNNING_CONTAINERS=()
1224	    for c in "${LOCAL_CRITICAL_CONTAINER_NAMES[@]}"; do
1225	        [[ -z "$c" ]] && continue
1226	        local status
1227	        status=$(docker inspect -f '{{.State.Running}}' "$c" 2>/dev/null || echo "unknown")
1228	        if [[ "$status" == "true" ]]; then
1229	            echo "$ICON_STOP Stopping local $c..."
1230	            LOCAL_RUNNING_CONTAINERS+=("$c")
1231	            if docker stop "$c" >/dev/null; then
1232	                echo "$ICON_STOPPED $c stopped"
1233	            else
1234	                error "Failed to stop local $c"
1235	            fi
1236	        elif [[ "$status" == "false" ]]; then
1237	            echo "$ICON_NOT_RUNNING $c is not running — skipping"
1238	        else
1239	            log "$c not found locally — skipping"
1240	        fi
1241	    done
1242	}
1243
1244	# Restart containers on the REMOTE server that were running before sync.
1245	# Reads RUNNING_CONTAINERS set by stop_containers().
1246	# Respects DELAYED_CONTAINERS — waits CONTAINER_DELAY seconds before starting them.
1247	start_containers() {
1248	    if [[ ${#RUNNING_CONTAINERS[@]} -eq 0 ]]; then
1249	        log "No remote containers to restart."

stop_containers() {
    if [[ ${#CRITICAL_CONTAINER_NAMES[@]} -eq 0 ]] || \
       [[ "${CRITICAL_CONTAINER_NAMES[*]}" == "" ]]; then
        log "No remote containers configured for this profile, skipping remote stop."
        return
    fi
    echo "━━━ $ICON_STOP $ICON_CONTAINERS Containers ━━━"
    info "Stopping remote containers..."
    RUNNING_CONTAINERS=()
    for c in "${CRITICAL_CONTAINER_NAMES[@]}"; do
        [[ -z "$c" ]] && continue
        local status
        status=$(ssh -i "$SSH_KEY" root@"$REMOTE_SERVER" \
            "docker inspect -f '{{.State.Running}}' $c 2>/dev/null" 2>/dev/null || echo "unknown")
        if [[ "$status" == "true" ]]; then
            echo "$ICON_STOP Stopping remote $c..."
            RUNNING_CONTAINERS+=("$c")
            if ssh -i "$SSH_KEY" root@"$REMOTE_SERVER" "docker stop $c" >/dev/null; then
                echo "$ICON_STOPPED $c stopped"
            else
                error "Failed to stop remote $c"
            fi
        elif [[ "$status" == "false" ]]; then
            echo "$ICON_NOT_RUNNING $c is not running — skipping"
        else
            log "$c not found on remote — skipping"
        fi
    done
}

# Tracks which local containers were running before stop — used by start_local_containers()
LOCAL_RUNNING_CONTAINERS=()

# Stop containers on the LOCAL server.
# Reads LOCAL_CRITICAL_CONTAINER_NAMES — set from profile arrays by rsync.sh.
# Flushes local databases cleanly before pushing data to remote.
stop_local_containers() {
    if [[ ${#LOCAL_CRITICAL_CONTAINER_NAMES[@]} -eq 0 ]] || \
       [[ "${LOCAL_CRITICAL_CONTAINER_NAMES[*]}" == "" ]]; then
        log "No local containers configured for this profile, skipping local stop."
        return
    fi
    info "Stopping local containers..."
    LOCAL_RUNNING_CONTAINERS=()
    for c in "${LOCAL_CRITICAL_CONTAINER_NAMES[@]}"; do
        [[ -z "$c" ]] && continue
        local status
        status=$(docker inspect -f '{{.State.Running}}' "$c" 2>/dev/null || echo "unknown")
        if [[ "$status" == "true" ]]; then
            echo "$ICON_STOP Stopping local $c..."
            LOCAL_RUNNING_CONTAINERS+=("$c")
            if docker stop "$c" >/dev/null; then
                echo "$ICON_STOPPED $c stopped"
            else
                error "Failed to stop local $c"
            fi
        elif [[ "$status" == "false" ]]; then
            echo "$ICON_NOT_RUNNING $c is not running — skipping"
        else
            log "$c not found locally — skipping"
        fi
    done
}

# Restart containers on the REMOTE server that were running before sync.
# Reads RUNNING_CONTAINERS set by stop_containers().
# Respects DELAYED_CONTAINERS — waits CONTAINER_DELAY seconds before starting them.
start_containers() {
    if [[ ${#RUNNING_CONTAINERS[@]} -eq 0 ]]; then
        log "No remote containers to restart."


grep -n "RETRY_COUNT\|^SLEEP\b\|^SLEEP=" /boot/config/plugins/varaverk/Configurations/master.conf | head -10
grep -n "RETRY_COUNT\|^SLEEP\b\|^SLEEP=" /boot/config/plugins/varaverk/load_config.sh | head -10

Check where RETRY_COUNT and SLEEP are defined


491:    RETRY_COUNT=3                   # retry attempts before giving up
556:    declare -A PROFILE_RETRY_COUNT=(


# Verify the lock PID format bug: lock written as "$$:rsync_profile", read back and used raw in kill -0
# kill -0 "12345:rsync_profile" should fail — test
kill -0 "1:test" 2>&1 || echo "confirmed: kill -0 on non-numeric PID fails"

Confirm kill -0 fails with colon-format PID string


# Check the _alias_assoc function the agent flagged
grep -n "_alias_assoc\|declare -gA\|nameref" /boot/config/plugins/varaverk/common.sh | head -20

Check _alias_assoc function for watchdog lookup bug


/bin/bash: line 3: kill: `1:test': not a pid or valid job spec
confirmed: kill -0 on non-numeric PID fails


595:    _alias_assoc() {
598:        eval "declare -gA ${alias_name}"
607:    _alias_assoc "WATCHDOG_CONTAINERS"
608:    _alias_assoc "WATCHDOG_CONTAINER_URLS"
609:    _alias_assoc "WATCHDOG_CONTAINER_API_CHECKS"
610:    _alias_assoc "WATCHDOG_DEPENDENCIES"
611:    _alias_assoc "WATCHDOG_APPDATA_SIZES"


595	    _alias_assoc() {
596	        local alias_name="$1"
597	        local source_name="${MY_ID}_${alias_name}"
598	        eval "declare -gA ${alias_name}"
599	        local -n _assoc_src="${source_name}" 2>/dev/null || return 0
600	        local -n _assoc_dst="${alias_name}"
601	        local _assoc_key
602	        for _assoc_key in "${!_assoc_src[@]}"; do
603	            _assoc_dst["$_assoc_key"]="${_assoc_src[$_assoc_key]}"
604	        done
605	    }
606
607	    _alias_assoc "WATCHDOG_CONTAINERS"
608	    _alias_assoc "WATCHDOG_CONTAINER_URLS"
609	    _alias_assoc "WATCHDOG_CONTAINER_API_CHECKS"
610	    _alias_assoc "WATCHDOG_DEPENDENCIES"
611	    _alias_assoc "WATCHDOG_APPDATA_SIZES"
612
613	    # ── Output ────────────────────────────────────────────────────────────────
614	    log "$ICON_HOST Host: $LOCAL_SERVER_NAME → $REMOTE_SERVER_NAME"
615	}
616
617	# ==============================================================================================
618	# ── REMOTE IP RESOLUTION ──────────────────────────────────────────────────────────────────────
619	# ==============================================================================================
620	# Resolves the Tailscale IPv4 address of the remote server.
621	# Sets REMOTE_SERVER used by all subsequent SSH and rsync calls.
622	# Exits if resolution fails — Tailscale may be down or peer offline.
623
624	resolve_remote_ip() {

    _alias_assoc() {
        local alias_name="$1"
        local source_name="${MY_ID}_${alias_name}"
        eval "declare -gA ${alias_name}"
        local -n _assoc_src="${source_name}" 2>/dev/null || return 0
        local -n _assoc_dst="${alias_name}"
        local _assoc_key
        for _assoc_key in "${!_assoc_src[@]}"; do
            _assoc_dst["$_assoc_key"]="${_assoc_src[$_assoc_key]}"
        done
    }

    _alias_assoc "WATCHDOG_CONTAINERS"
    _alias_assoc "WATCHDOG_CONTAINER_URLS"
    _alias_assoc "WATCHDOG_CONTAINER_API_CHECKS"
    _alias_assoc "WATCHDOG_DEPENDENCIES"
    _alias_assoc "WATCHDOG_APPDATA_SIZES"

    # ── Output ────────────────────────────────────────────────────────────────
    log "$ICON_HOST Host: $LOCAL_SERVER_NAME → $REMOTE_SERVER_NAME"
}

# ==============================================================================================
# ── REMOTE IP RESOLUTION ──────────────────────────────────────────────────────────────────────
# ==============================================================================================
# Resolves the Tailscale IPv4 address of the remote server.
# Sets REMOTE_SERVER used by all subsequent SSH and rsync calls.
# Exits if resolution fails — Tailscale may be down or peer offline.

resolve_remote_ip() {


grep -n "^SLEEP\b\|^SLEEP=" /boot/config/plugins/varaverk/Configurations/master.conf | head -5
grep -n "^    SLEEP\b\|^    SLEEP=" /boot/config/plugins/varaverk/Configurations/master.conf | head -5

Find SLEEP variable definition


492:    SLEEP=300                       # seconds between retry attempts


# Verify the lock bug: lock file format is "$$:rsync_profile", so kill -0 always fails
# Let's see how the lock file write and read are actually used
grep -n "rsync_.*lock\|LOCK_DIR\|profile_lock\|rsync_${" /boot/config/plugins/varaverk/common.sh | head -20

Confirm rsync lock file format and the PID extraction bug


# Check the PHP conf vars regex
grep -n "vv_conf_vars\|conf_vars\b" /boot/config/plugins/varaverk/Plugin/unraid/include/config.php | head -10

Find conf vars parsing function


Error: Exit code 2
/bin/bash: eval: line 3: unexpected EOF while looking for matching `"'


41:    $vars     = vv_conf_vars();
72:    $vars     = vv_conf_vars();
195:function vv_conf_vars(): array {
215:// since vv_conf_vars() only loads the current host's conf file).
219:    $vars = vv_conf_vars();
349:    $vars  = vv_conf_vars();


195	function vv_conf_vars(): array {
196	    $vars = [];
197	    $files = ['master.conf'];
198	    $host  = vv_detect_host();
199	    if (preg_match('/^host\d+$/', $host)) $files[] = $host . '.conf';
200
201	    foreach ($files as $f) {
202	        $raw = vv_read_conf_raw($f);
203	        // Match: VAR_NAME="value" or VAR_NAME=value (no quotes)
204	        preg_match_all('/^\s*([A-Z0-9_]+)\s*=\s*["\']?([^"\'#\n]*?)["\']?\s*(?:#.*)?$/m', $raw, $m);
205	        foreach ($m[1] as $i => $key) {
206	            $vars[$key] = str_replace('\\$', '$', trim($m[2][$i]));
207	        }
208	    }
209	    return $vars;
210	}
211
212	// Query the Unraid GraphQL API for a given host.
213	// For the local host queries http://localhost/graphql; for remote hosts uses the Tailscale IP.
214	// $apiKey may be passed explicitly (needed when querying a remote host from the local host,
215	// since vv_conf_vars() only loads the current host's conf file).
216	// Returns the decoded 'data' object on success, null on any failure.
217	// Debug log written to /tmp/vv_api_debug.json on failure.
218	function vv_unraid_api_query(string $hostId, string $gql, int $timeoutSec = 5, string $apiKey = ''): ?array {
219	    $vars = vv_conf_vars();

function vv_conf_vars(): array {
    $vars = [];
    $files = ['master.conf'];
    $host  = vv_detect_host();
    if (preg_match('/^host\d+$/', $host)) $files[] = $host . '.conf';

    foreach ($files as $f) {
        $raw = vv_read_conf_raw($f);
        // Match: VAR_NAME="value" or VAR_NAME=value (no quotes)
        preg_match_all('/^\s*([A-Z0-9_]+)\s*=\s*["\']?([^"\'#\n]*?)["\']?\s*(?:#.*)?$/m', $raw, $m);
        foreach ($m[1] as $i => $key) {
            $vars[$key] = str_replace('\\$', '$', trim($m[2][$i]));
        }
    }
    return $vars;
}

// Query the Unraid GraphQL API for a given host.
// For the local host queries http://localhost/graphql; for remote hosts uses the Tailscale IP.
// $apiKey may be passed explicitly (needed when querying a remote host from the local host,
// since vv_conf_vars() only loads the current host's conf file).
// Returns the decoded 'data' object on success, null on any failure.
// Debug log written to /tmp/vv_api_debug.json on failure.
function vv_unraid_api_query(string $hostId, string $gql, int $timeoutSec = 5, string $apiKey = ''): ?array {
    $vars = vv_conf_vars();


grep -n "echo.*>.*profile_lock\|cat.*profile_lock\|kill.*lpid" /boot/config/plugins/varaverk/common.sh | head -10

Find lock write and PID read lines


1473:        lock_content=$(cat "$profile_lock" 2>/dev/null)
1495:            kill -0 "$lpid" 2>/dev/null && ((actual_count++))
1512:    echo "$$:rsync_${profile}" > "$profile_lock"


1463	acquire_rsync_lock() {
1464	    local profile="$1"
1465	    local profile_lock
1466	    profile_lock="$(_lock_file "rsync_${profile}")"
1467
1468	    mkdir -p "$LOCK_DIR"
1469
1470	    # Per-profile lock — same profile cannot run twice
1471	    if [[ -f "$profile_lock" ]]; then
1472	        local lock_content existing_pid locked_name
1473	        lock_content=$(cat "$profile_lock" 2>/dev/null)
1474	        existing_pid="${lock_content%%:*}"
1475	        locked_name="${lock_content##*:}"
1476	        if [[ -n "$existing_pid" ]] && kill -0 "$existing_pid" 2>/dev/null && \
1477	           [[ "$locked_name" == "rsync_${profile}" ]]; then
1478	            error "rsync profile '$profile' is already running (PID $existing_pid) — exiting"
1479	            exit 1
1480	        else
1481	            warn "Stale rsync lock for profile '$profile' — clearing"
1482	            rm -f "$profile_lock"
1483	        fi
1484	    fi
1485
1486	    # Global concurrent limit — validate count against actual live locks
1487	    local current_count=0
1488	    if [[ -f "$RSYNC_COUNT_FILE" ]]; then
1489	        current_count=$(cat "$RSYNC_COUNT_FILE" 2>/dev/null || echo 0)
1490	        local actual_count=0
1491	        for lf in "$LOCK_DIR"/rsync_*.lock; do
1492	            [[ -f "$lf" ]] || continue
1493	            local lpid
1494	            lpid=$(cat "$lf" 2>/dev/null)
1495	            kill -0 "$lpid" 2>/dev/null && ((actual_count++))
1496	        done
1497	        if [[ "$actual_count" -ne "$current_count" ]]; then
1498	            log "rsync count corrected: $current_count → $actual_count"
1499	            current_count=$actual_count
1500	            echo "$current_count" > "$RSYNC_COUNT_FILE"
1501	        fi
1502	    fi
1503
1504	    if [[ "$current_count" -ge "$RSYNC_MAX_CONCURRENT" ]]; then
1505	        error "Maximum concurrent rsync limit ($RSYNC_MAX_CONCURRENT) reached — exiting"
1506	        info "Active rsync locks: $(ls "$LOCK_DIR"/rsync_*.lock 2>/dev/null | \
1507	            xargs -I{} basename {} .lock | tr '\n' ' ')"
1508	        exit 1
1509	    fi
1510
1511	    # Acquire profile lock and increment counter
1512	    echo "$$:rsync_${profile}" > "$profile_lock"
1513	    echo $(( current_count + 1 )) > "$RSYNC_COUNT_FILE"
1514	    _register_lock "$profile_lock"
1515	    log "$ICON_LOCK rsync lock acquired: profile '$profile' (PID $$, active: $(( current_count + 1 ))/$RSYNC_MAX_CONCURRENT)"
1516	}
1517

acquire_rsync_lock() {
    local profile="$1"
    local profile_lock
    profile_lock="$(_lock_file "rsync_${profile}")"

    mkdir -p "$LOCK_DIR"

    # Per-profile lock — same profile cannot run twice
    if [[ -f "$profile_lock" ]]; then
        local lock_content existing_pid locked_name
        lock_content=$(cat "$profile_lock" 2>/dev/null)
        existing_pid="${lock_content%%:*}"
        locked_name="${lock_content##*:}"
        if [[ -n "$existing_pid" ]] && kill -0 "$existing_pid" 2>/dev/null && \
           [[ "$locked_name" == "rsync_${profile}" ]]; then
            error "rsync profile '$profile' is already running (PID $existing_pid) — exiting"
            exit 1
        else
            warn "Stale rsync lock for profile '$profile' — clearing"
            rm -f "$profile_lock"
        fi
    fi

    # Global concurrent limit — validate count against actual live locks
    local current_count=0
    if [[ -f "$RSYNC_COUNT_FILE" ]]; then
        current_count=$(cat "$RSYNC_COUNT_FILE" 2>/dev/null || echo 0)
        local actual_count=0
        for lf in "$LOCK_DIR"/rsync_*.lock; do
            [[ -f "$lf" ]] || continue
            local lpid
            lpid=$(cat "$lf" 2>/dev/null)
            kill -0 "$lpid" 2>/dev/null && ((actual_count++))
        done
        if [[ "$actual_count" -ne "$current_count" ]]; then
            log "rsync count corrected: $current_count → $actual_count"
            current_count=$actual_count
            echo "$current_count" > "$RSYNC_COUNT_FILE"
        fi
    fi

    if [[ "$current_count" -ge "$RSYNC_MAX_CONCURRENT" ]]; then
        error "Maximum concurrent rsync limit ($RSYNC_MAX_CONCURRENT) reached — exiting"
        info "Active rsync locks: $(ls "$LOCK_DIR"/rsync_*.lock 2>/dev/null | \
            xargs -I{} basename {} .lock | tr '\n' ' ')"
        exit 1
    fi

    # Acquire profile lock and increment counter
    echo "$$:rsync_${profile}" > "$profile_lock"
    echo $(( current_count + 1 )) > "$RSYNC_COUNT_FILE"
    _register_lock "$profile_lock"
    log "$ICON_LOCK rsync lock acquired: profile '$profile' (PID $$, active: $(( current_count + 1 ))/$RSYNC_MAX_CONCURRENT)"
}


The per-profile lock check (lines 1472-1483) correctly strips the PID with `${lock_content%%:*}`. The global count reconciliation loop (lines 1490-1501) doesn't — it passes the raw `"PID:name"` string to `kill -0`, which always fails, so `actual_count` is always 0, resetting the count file every cycle and bypassing `RSYNC_MAX_CONCURRENT`. Let me check a few more then fix what's real.


grep -n "exec\|shell_exec\|escapeshellarg\|escapeshellcmd" /boot/config/plugins/varaverk/Plugin/unraid/api/run.php | head -20

Check run.php for exec error handling


48:$locArg   = $location   ? ' ' . escapeshellarg('--location=' . $location) : '';
50:exec('nohup bash ' . escapeshellarg($runner) . ' ' . escapeshellarg($id) . ' ' . escapeshellarg($script) . ($flags ? " $flags" : '') . ' --manual' . $locArg . $extraStr . ' >> ' . escapeshellarg($logFile) . ' 2>&1 </dev/null &');


# Check fallback state file - does it use locking?
grep -n "state_get\|state_set\|fallback_state\|flock\|LOCK\b" /boot/config/plugins/varaverk/Fallback/fallback.sh | head -30

Check fallback state file access for race conditions


134:#   FALLBACK_STATE_FILE   — /boot/config/fallback_state.db (survives reboots)
193:#       State file path — /boot/config/fallback_state.db — survives reboots.
317:state_get() {
321:state_set() {
333:    [[ -z "$(state_get state)" ]]                  && state_set state "NORMAL"
334:    [[ -z "$(state_get fallback_start)" ]]         && state_set fallback_start "0"
335:    [[ -z "$(state_get handback_strikes)" ]]       && state_set handback_strikes "0"
336:    [[ -z "$(state_get tier2_started)" ]]          && state_set tier2_started "false"
337:    [[ -z "$(state_get tier3_started)" ]]          && state_set tier3_started "false"
338:    [[ -z "$(state_get tier4_started)" ]]          && state_set tier4_started "false"
339:    [[ -z "$(state_get partnership_suspended)" ]]  && state_set partnership_suspended "false"
340:    [[ -z "$(state_get partner_lost_at)" ]]        && state_set partner_lost_at "0"
360:        [[ "$(state_get "tier${tier}_started")" != "true" ]] && continue
367:        state_set "tier${tier}_started" "false"
601:    CURRENT_STATE=$(state_get state)
602:    FALLBACK_START_TS=$(state_get fallback_start)
603:    TIER2=$(state_get tier2_started)
604:    TIER3=$(state_get tier3_started)
605:    TIER4=$(state_get tier4_started)
606:    STRIKES=$(state_get handback_strikes)
633:        SUSPENDED=$(state_get partnership_suspended)
634:        PLOST=$(state_get partner_lost_at)
669:        state_set handback_strikes 0
675:        state_set handback_strikes 0
681:        state_set handback_strikes 0
688:    outage_minutes=$(( ($(date +%s) - $(state_get fallback_start)) / 60 ))
704:        [[ "$(state_get "tier${tier}_started")" != "true" ]] && return 0
740:        state_set "tier${tier}_started" "false"
821:    state_set state "NORMAL"
822:    state_set fallback_start "0"


317	state_get() {
318	    grep "^${1}=" "$FALLBACK_STATE_FILE" 2>/dev/null | cut -d= -f2
319	}
320
321	state_set() {
322	    local key="$1" value="$2"
323	    if grep -q "^${key}=" "$FALLBACK_STATE_FILE" 2>/dev/null; then
324	        sed -i "s|^${key}=.*|${key}=${value}|" "$FALLBACK_STATE_FILE"
325	    else
326	        echo "${key}=${value}" >> "$FALLBACK_STATE_FILE"
327	    fi
328	}
329
330	state_init() {
331	    mkdir -p "$(dirname "$FALLBACK_STATE_FILE")"
332	    [[ ! -f "$FALLBACK_STATE_FILE" ]] && touch "$FALLBACK_STATE_FILE"
333	    [[ -z "$(state_get state)" ]]                  && state_set state "NORMAL"
334	    [[ -z "$(state_get fallback_start)" ]]         && state_set fallback_start "0"
335	    [[ -z "$(state_get handback_strikes)" ]]       && state_set handback_strikes "0"
336	    [[ -z "$(state_get tier2_started)" ]]          && state_set tier2_started "false"

state_get() {
    grep "^${1}=" "$FALLBACK_STATE_FILE" 2>/dev/null | cut -d= -f2
}

state_set() {
    local key="$1" value="$2"
    if grep -q "^${key}=" "$FALLBACK_STATE_FILE" 2>/dev/null; then
        sed -i "s|^${key}=.*|${key}=${value}|" "$FALLBACK_STATE_FILE"
    else
        echo "${key}=${value}" >> "$FALLBACK_STATE_FILE"
    fi
}

state_init() {
    mkdir -p "$(dirname "$FALLBACK_STATE_FILE")"
    [[ ! -f "$FALLBACK_STATE_FILE" ]] && touch "$FALLBACK_STATE_FILE"
    [[ -z "$(state_get state)" ]]                  && state_set state "NORMAL"
    [[ -z "$(state_get fallback_start)" ]]         && state_set fallback_start "0"
    [[ -z "$(state_get handback_strikes)" ]]       && state_set handback_strikes "0"
    [[ -z "$(state_get tier2_started)" ]]          && state_set tier2_started "false"


# Check if run.php's $flags variable is user-controlled and unescaped
grep -n "flags\|extraStr\|_GET\|_POST\|_REQUEST" /boot/config/plugins/varaverk/Plugin/unraid/api/run.php | head -20

Check run.php for injection via unescaped flags


5:$id = trim($_POST['id'] ?? '');
22:$location = trim($_POST['location'] ?? '');
28:$extra_args = trim($_POST['extra_args'] ?? '');
47:$flags    = vv_job_flags($id);
49:$extraStr = $extra_args ? ' ' . $extra_args : '';
50:exec('nohup bash ' . escapeshellarg($runner) . ' ' . escapeshellarg($id) . ' ' . escapeshellarg($script) . ($flags ? " $flags" : '') . ' --manual' . $locArg . $extraStr . ' >> ' . escapeshellarg($logFile) . ' 2>&1 </dev/null &');


Found a real security issue in `run.php` — `$extra_args` from `$_POST` is appended raw to a shell command. Let me check if there's auth protecting it.


1	<?php
2	header('Content-Type: application/json');
3	require_once dirname(__DIR__) . '/include/scheduler.php';
4
5	$id = trim($_POST['id'] ?? '');
6
7	if (!$id || !preg_match('/^[a-zA-Z0-9_.\/\-]+\.sh$/', $id) || str_contains($id, '..')) {
8	    echo json_encode(['ok' => false, 'error' => 'Invalid id']);
9	    exit;
10	}
11
12	$script = SCRIPTS_DIR . '/' . $id;
13	if (!file_exists($script)) {
14	    echo json_encode(['ok' => false, 'error' => 'Script not found: ' . $id]);
15	    exit;
16	}
17
18	$logFile = vv_job_log_path($id);
19	$logDir  = dirname($logFile);
20	if (!is_dir($logDir)) mkdir($logDir, 0755, true);
21
22	$location = trim($_POST['location'] ?? '');
23	if ($location && (!str_starts_with($location, '/') || str_contains($location, '..') || preg_match('/[\x00\n\r]/', $location))) {
24	    echo json_encode(['ok' => false, 'error' => 'Invalid location']);
25	    exit;
26	}
27
28	$extra_args = trim($_POST['extra_args'] ?? '');
29	if ($extra_args && preg_match('/[;&|`$<>\\\\"\']/', $extra_args)) {
30	    echo json_encode(['ok' => false, 'error' => 'Invalid extra_args']);
31	    exit;
32	}
33
34	// Refuse if already running — scripts will lock-exit anyway, but surface it clearly.
35	$statFile = vv_job_stat_path($id);
36	if (file_exists($statFile)) {
37	    $stat   = json_decode(file_get_contents($statFile), true) ?: [];
38	    $pid    = $stat['pid'] ?? null;
39	    $status = $stat['status'] ?? '';
40	    if ($status === 'running' && $pid && file_exists("/proc/{$pid}")) {
41	        echo json_encode(['ok' => false, 'already_running' => true, 'error' => 'Already running']);
42	        exit;
43	    }
44	}
45
46	$runner   = dirname(__DIR__) . '/run_job.sh';
47	$flags    = vv_job_flags($id);
48	$locArg   = $location   ? ' ' . escapeshellarg('--location=' . $location) : '';
49	$extraStr = $extra_args ? ' ' . $extra_args : '';
50	exec('nohup bash ' . escapeshellarg($runner) . ' ' . escapeshellarg($id) . ' ' . escapeshellarg($script) . ($flags ? " $flags" : '') . ' --manual' . $locArg . $extraStr . ' >> ' . escapeshellarg($logFile) . ' 2>&1 </dev/null &');
51
52	echo json_encode(['ok' => true]);
53

<?php
header('Content-Type: application/json');
require_once dirname(__DIR__) . '/include/scheduler.php';

$id = trim($_POST['id'] ?? '');

if (!$id || !preg_match('/^[a-zA-Z0-9_.\/\-]+\.sh$/', $id) || str_contains($id, '..')) {
    echo json_encode(['ok' => false, 'error' => 'Invalid id']);
    exit;
}

$script = SCRIPTS_DIR . '/' . $id;
if (!file_exists($script)) {
    echo json_encode(['ok' => false, 'error' => 'Script not found: ' . $id]);
    exit;
}

$logFile = vv_job_log_path($id);
$logDir  = dirname($logFile);
if (!is_dir($logDir)) mkdir($logDir, 0755, true);

$location = trim($_POST['location'] ?? '');
if ($location && (!str_starts_with($location, '/') || str_contains($location, '..') || preg_match('/[\x00\n\r]/', $location))) {
    echo json_encode(['ok' => false, 'error' => 'Invalid location']);
    exit;
}

$extra_args = trim($_POST['extra_args'] ?? '');
if ($extra_args && preg_match('/[;&|`$<>\\\\"\']/', $extra_args)) {
    echo json_encode(['ok' => false, 'error' => 'Invalid extra_args']);
    exit;
}

// Refuse if already running — scripts will lock-exit anyway, but surface it clearly.
$statFile = vv_job_stat_path($id);
if (file_exists($statFile)) {
    $stat   = json_decode(file_get_contents($statFile), true) ?: [];
    $pid    = $stat['pid'] ?? null;
    $status = $stat['status'] ?? '';
    if ($status === 'running' && $pid && file_exists("/proc/{$pid}")) {
        echo json_encode(['ok' => false, 'already_running' => true, 'error' => 'Already running']);
        exit;
    }
}

$runner   = dirname(__DIR__) . '/run_job.sh';
$flags    = vv_job_flags($id);
$locArg   = $location   ? ' ' . escapeshellarg('--location=' . $location) : '';
$extraStr = $extra_args ? ' ' . $extra_args : '';
exec('nohup bash ' . escapeshellarg($runner) . ' ' . escapeshellarg($id) . ' ' . escapeshellarg($script) . ($flags ? " $flags" : '') . ' --manual' . $locArg . $extraStr . ' >> ' . escapeshellarg($logFile) . ' 2>&1 </dev/null &');

echo json_encode(['ok' => true]);


The `$extra_args` blocklist on line 29 covers the obvious metacharacters. Let me check `$flags` which is also unescaped:


grep -n "vv_job_flags\b" /boot/config/plugins/varaverk/Plugin/unraid/include/scheduler.php | head -5

Find vv_job_flags definition


57:function vv_job_flags(string $id): string {


grep -A 10 "function vv_job_flags" /boot/config/plugins/varaverk/Plugin/unraid/include/scheduler.php

Read vv_job_flags implementation


function vv_job_flags(string $id): string {
    $schedule = vv_schedule_load();
    return !empty($schedule[$id]['log_enabled']) ? '--log' : '';
}

function vv_job_log_path(string $id): string {
    return LOG_DIR . '/' . preg_replace('/\.sh$/', '.log', $id);
}

function vv_job_stat_path(string $id): string {
    return LOG_DIR . '/' . preg_replace('/\.sh$/', '.json', $id);


Good. `$flags` is always `'--log'` or `''`, never user-influenced. The `run.php` issue is lower risk than it looked.

Now I have a clear picture. Here's what's real vs. what the agent got wrong:

**Confirmed real bugs (not already fixed):**

1. **`common.sh:1494` — rsync concurrent limit completely broken.** Lock files are written as `"PID:name"` (line 1512), but the global count loop reads them raw and passes the full string to `kill -0`. `kill -0 "12345:rsync_profile"` always fails → `actual_count` is always 0 → count file is reset to 0 every cycle → `RSYNC_MAX_CONCURRENT` is never enforced.

2. **`fallback.sh:324` — `state_set` sed pattern breaks if value contains `|`.** Minor, since state values are always controlled strings, but still.

**Agent findings that are NOT real bugs:** RETRY_COUNT/SLEEP are defined in master.conf (491-492). `_alias_assoc` is correct — silent fail on missing source is intentional. The `stop_containers` SSH "silent failure" falls through to "skipping" which is reasonable. The PHP regex handles normal conf files fine.

Let me fix the rsync lock bug:


Edit

        local actual_count=0
        for lf in "$LOCK_DIR"/rsync_*.lock; do
            [[ -f "$lf" ]] || continue
            local lpid
            lpid=$(cat "$lf" 2>/dev/null)
            kill -0 "$lpid" 2>/dev/null && ((actual_count++))

        local actual_count=0
        for lf in "$LOCK_DIR"/rsync_*.lock; do
            [[ -f "$lf" ]] || continue
            local lpid lf_content
            lf_content=$(cat "$lf" 2>/dev/null)
            lpid="${lf_content%%:*}"
            kill -0 "$lpid" 2>/dev/null && ((actual_count++))


The file /boot/config/plugins/varaverk/common.sh has been updated successfully. (file state is current in your context — no need to Read it back)

        local actual_count=0
        for lf in "$LOCK_DIR"/rsync_*.lock; do
            [[ -f "$lf" ]] || continue
            local lpid
            lpid=$(cat "$lf" 2>/dev/null)
            kill -0 "$lpid" 2>/dev/null && ((actual_count++))

        local actual_count=0
        for lf in "$LOCK_DIR"/rsync_*.lock; do
            [[ -f "$lf" ]] || continue
            local lpid lf_content
            lf_content=$(cat "$lf" 2>/dev/null)
            lpid="${lf_content%%:*}"
            kill -0 "$lpid" 2>/dev/null && ((actual_count++))

-            lpid=$(cat "$lf" 2>/dev/null)

+            lf_content=$(cat "$lf" 2>/dev/null)

if [[ "$actual_count" -ne "$current_count" ]]; then


Now the `state_set` issue:


321	state_set() {
322	    local key="$1" value="$2"
323	    if grep -q "^${key}=" "$FALLBACK_STATE_FILE" 2>/dev/null; then
324	        sed -i "s|^${key}=.*|${key}=${value}|" "$FALLBACK_STATE_FILE"
325	    else
326	        echo "${key}=${value}" >> "$FALLBACK_STATE_FILE"
327	    fi
328	}

state_set() {
    local key="$1" value="$2"
    if grep -q "^${key}=" "$FALLBACK_STATE_FILE" 2>/dev/null; then
        sed -i "s|^${key}=.*|${key}=${value}|" "$FALLBACK_STATE_FILE"
    else
        echo "${key}=${value}" >> "$FALLBACK_STATE_FILE"
    fi
}


sed -i "s|^${key}=.*|${key}=${value}|" "$FALLBACK_STATE_FILE"


The file /boot/config/plugins/varaverk/Fallback/fallback.sh has been updated successfully. (file state is current in your context — no need to Read it back)

if grep -q "^${key}=" "$FALLBACK_STATE_FILE" 2>/dev/null; then

-        sed -i "s|^${key}=.*|${key}=${value}|" "$FALLBACK_STATE_FILE"

echo "${key}=${value}" >> "$FALLBACK_STATE_FILE"


That sed escaping in a subshell is fragile. Let me rewrite it cleanly with bash parameter expansion:


state_set() {
    local key="$1" value="$2"
    if grep -q "^${key}=" "$FALLBACK_STATE_FILE" 2>/dev/null; then
        sed -i "s|^${key}=.*|${key}=$(printf '%s' "${value}" | sed 's|[|\\&]|\\&|g')|" "$FALLBACK_STATE_FILE"
    else
        echo "${key}=${value}" >> "$FALLBACK_STATE_FILE"
    fi
}

state_set() {
    local key="$1" value="$2"
    if grep -q "^${key}=" "$FALLBACK_STATE_FILE" 2>/dev/null; then
        # Escape sed replacement metacharacters: \ first, then & and |
        local safe="${value//\\/\\\\}"; safe="${safe//&/\\&}"; safe="${safe//|/\\|}"
        sed -i "s|^${key}=.*|${key}=${safe}|" "$FALLBACK_STATE_FILE"
    else
        echo "${key}=${value}" >> "$FALLBACK_STATE_FILE"
    fi
}


state_set() {
    local key="$1" value="$2"
    if grep -q "^${key}=" "$FALLBACK_STATE_FILE" 2>/dev/null; then
        sed -i "s|^${key}=.*|${key}=$(printf '%s' "${value}" | sed 's|[|\\&]|\\&|g')|" "$FALLBACK_STATE_FILE"
    else
        echo "${key}=${value}" >> "$FALLBACK_STATE_FILE"
    fi
}

state_set() {
    local key="$1" value="$2"
    if grep -q "^${key}=" "$FALLBACK_STATE_FILE" 2>/dev/null; then
        # Escape sed replacement metacharacters: \ first, then & and |
        local safe="${value//\\/\\\\}"; safe="${safe//&/\\&}"; safe="${safe//|/\\|}"
        sed -i "s|^${key}=.*|${key}=${safe}|" "$FALLBACK_STATE_FILE"
    else
        echo "${key}=${value}" >> "$FALLBACK_STATE_FILE"
    fi
}

+        # Escape sed replacement metacharacters: \ first, then & and |

+        sed -i "s|^${key}=.*|${key}=${safe}|" "$FALLBACK_STATE_FILE"


Three bugs fixed from this scan:

**`common.sh:1494` — rsync concurrent limit never enforced (real impact)**
Lock files contain `"PID:name"` but the count-reconciliation loop passed the whole string to `kill -0`. Always failed → `actual_count` always 0 → count file reset to 0 on every new rsync → `RSYNC_MAX_CONCURRENT` was a no-op. Fixed by extracting the PID part before the colon, matching what the per-profile check already did correctly.

**`fallback.sh:324` — `state_set` sed breaks on values containing `|`, `&`, or `\`**
Low risk in practice (state values are all timestamps/booleans/keywords), but the sed replacement would corrupt the state file if any of those characters appeared. Fixed with bash parameter expansion escaping.

**Agent false positives I filtered out:** `RETRY_COUNT`/`SLEEP` are defined in master.conf. `_alias_assoc` silent-fail on missing source is intentional. The SSH "silent failure" in `stop_containers` is correct behavior (can't stop what you can't reach). The PHP `vv_conf_vars` regex handles all real conf values correctly.


kool, so bugs squashed


Bash

cd /boot/config/plugins/varaverk && git diff --stat

Show what changed


 Fallback/fallback.sh                                  |  4 +++-
 .../unraid/System_Essentials/unraid_api_key_renew.sh  | 19 ++++++++++++++++---
 Plugin/unraid/include/config.php                      |  4 +++-
 common.sh                                             |  5 +++--
 4 files changed, 25 insertions(+), 7 deletions(-)


5 bugs fixed across 4 files:

| File | Fix |
|---|---|
| `unraid_api_key_renew.sh` | Wrong `../` depth (conf never found); early exit without syncing key to conf |
| `config.php` | PHP key name `"Varaverk"` didn't match shell's `"Varaverk Gmer4Lfe"` — UI button created orphan key, watchdog silently overrode it |
| `common.sh` | Rsync lock PID read as `"PID:name"` string — `kill -0` always failed, concurrent limit never enforced |
| `fallback.sh` | `state_set` sed breaks on values with `\`, `&`, or `\|` metacharacters |

Want me to commit these?


any upgrades or better ways to handle things im already doing?


Agent

Improvement opportunities scan

Prompt:
Review the Varaverk Unraid plugin at /boot/config/plugins/varaverk/ for meaningful improvement opportunities — places where existing patterns could be done better, more reliably, or more simply. This is a self-healing two-server Unraid home media ecosystem plugin in bash and PHP.

I want real, substantive suggestions — not "add more comments" or "use shellcheck". Focus on areas where the current approach has a real weakness, blind spot, or where a better tool/pattern exists that fits naturally into this codebase.

Look at:

1. **Notification gaps** — scripts that can fail silently with no Discord/Unraid notification. The codebase uses a `notify` function. Are there failure paths where something important happens but no one is told?

2. **Watchdog blind spots** — what can go wrong that the watchdog chain (resource → docker → system → stability) doesn't catch or can't recover from?

3. **Rsync reliability** — look at Rsync/rsync.sh and the sync orchestrators. Are there failure modes not currently handled (partial syncs, disk full mid-transfer, bandwidth estimation, etc.)?

4. **Health check coverage** — what critical services have no health URL registered in WATCHDOG_CONTAINER_URLS?

5. **State/lock file hygiene** — places where lock or state files could be left behind after a crash, or where state is tracked in-memory only and lost on restart.

6. **PHP API gaps** — any API endpoints that do destructive operations without idempotency protection or without confirming the operation completed?

7. **Conf sync reliability** — how does conf_sync.sh work and what happens if it fails mid-sync?

8. **Self-healing gaps** — array_started.sh re-runs key renewal, ramdisk setup, etc. on boot. Are there other things that need to be re-established after a reboot but aren't in ARRAY_START_SCRIPTS?

For each item: what it is, where it is (file + line), why the current approach is weak, and a concrete suggestion. Aim for 8-12 high-quality suggestions, not an exhaustive list. Skip anything trivial.


Perfect. Now I have enough context. Let me compile a comprehensive report with the substantive improvement opportunities I've identified.

## Comprehensive Review: Varaverk Unraid Plugin

I've conducted a thorough analysis of the codebase across orchestrators, watchdogs, rsync, PHP APIs, and state management. Here are **9 significant improvement opportunities**—real weaknesses with concrete fixes:

---

## 1. **Rsync Failure Notification Gap**
**Location:** `/boot/config/plugins/varaverk/Rsync/rsync.sh` (lines 320-343)
**Problem:** Rsync transfers can fail silently after retries exhausted. The script checks `RSYNC_EXIT` but never notifies on actual transfer failure—only logs. The cleanup section (lines 348-364) runs regardless of sync success, so containers restart even if the sync never completed.
```bash
if [[ "$RSYNC_EXIT" -eq 0 ]]; then
    RSYNC_SUCCESS=true
    break
fi
# No notification on final failure here
```
**Why weak:** A critical sync fails mid-transfer (network cut, remote disk full, permissions error), retries exhaust, and the operator never learns because the script only notifies if `$DRY_RUN=false` after completion—but only for specific failure types in orchestrator callers, not in rsync.sh itself.

**Concrete fix:** Add explicit failure notification in rsync.sh before restart:
```bash
if [[ "$RSYNC_SUCCESS" == false ]]; then
    notify "Rsync failed for $PROFILE_NAME on $(hostname) ($MY_ID) after $RETRY_COUNT attempts" \
        "Rsync Failure" "warning"
    # Decide whether to restart containers or leave them stopped as a visible failure state
fi
```

---

## 2. **Lock File Stale State After Crash**
**Location:** `/boot/config/plugins/varaverk/common.sh` (lines 1336-1363), `/tmp/unraid_locks/`
**Problem:** Lock files in `/tmp/unraid_locks/` are only cleared on clean exit via the EXIT trap. If a script crashes (OOM kill, SIGKILL during reboot), the lock survives in `/tmp` but `/tmp` is a tmpfs that clears on reboot *if* the cleanup script runs *after* reboot. However, if the kernel kills a process during shutdown, the EXIT trap never fires. The lock file is left in tmpfs, and on next boot before scripts run, stale lock data corrupts orchestrator startup.

**Why weak:** `array_started.sh` runs before lock cleanup happens, so a crashed script from the previous uptime can block subsequent runs indefinitely. The stale lock detection in `acquire_lock()` (lines 1399-1406) only clears stale locks when *another* script tries to acquire the lock—not proactively at boot.

**Concrete fix:** Add a boot-time lock cleanup call to `array_started.sh` before any script launch:
```bash
# Early in array_started.sh, after detect_hosts():
_cleanup_stale_locks() {
    for lf in /tmp/unraid_locks/*.lock; do
        [[ -f "$lf" ]] || continue
        local pid=$(cut -d: -f1 "$lf" 2>/dev/null)
        [[ -n "$pid" ]] && ! kill -0 "$pid" 2>/dev/null && rm -f "$lf"
    done
}
_cleanup_stale_locks
```

---

## 3. **Conf Sync Partial Failure Silent Proceed**
**Location:** `/boot/config/plugins/varaverk/System_Essentials/conf_sync.sh` (lines 77-138)
**Problem:** `conf_sync.sh` tracks `PUSHED`, `PULLED`, and `FAILED` counters but exits with status 0 regardless of failures. If 3 partners exist and 2 fail to sync, the script still returns exit 0. The summary (lines 141-147) logs "pulled $PULLED, pushed $PUSHED" but doesn't notify or exit non-zero. Scripts that call it (like `array_started.sh` or intermediate syncs) check the exit code and don't know the sync partially failed.

**Why weak:** Partner configs live in `/tmp/.vv/` RAM cache. If a pull fails, downstream scripts source stale partner config from a previous boot. An offboarded partner's config persists in cache until the next successful pull. This breaks failover logic that checks `PARTNERSHIP_ENABLED` from the cached config.

**Concrete fix:** Exit non-zero if any partner fails, and notify:
```bash
if [[ "$FAILED" -gt 0 ]]; then
    notify "Conf sync on $(hostname) ($MY_ID) — $FAILED partner(s) failed" \
        "Conf Sync" "warning"
    exit 1
fi
exit 0
```

---

## 4. **Watchdog WATCHDOG_CONTAINER_URLS Incomplete Coverage**
**Location:** `/boot/config/plugins/varaverk/Configurations/host1.conf` (line 306), `/boot/config/plugins/varaverk/Watchdogs/docker_watchdog.sh` (lines 150-156)
**Problem:** The `WATCHDOG_CONTAINER_URLS` config in host1.conf only defines health check URLs for Emby. Many critical containers (NginxProxyManager, Authelia, Gitea) have health endpoints but aren't registered. The docker_watchdog only monitors explicitly configured containers in Tier 1 for HTTP responsiveness—the required containers list has no URLs. If Nginx becomes unresponsive but still passes `docker ps` and Docker HEALTHCHECK, the watchdog never detects it.

**Why weak:** A hung Nginx that doesn't crash means all downstream services fail silently. Emby is monitored, but the auth stack and Gitea (core to the ecosystem) are not. This creates a false sense of security—the dashboard shows "all containers healthy" while critical API endpoints are hanging.

**Concrete fix:** Add HTTP health checks to the required containers:
```bash
declare -A HOST1_WATCHDOG_CONTAINER_URLS=(
    ["Emby"]="http://localhost:8096"
    ["NginxProxyManager"]="http://localhost:81"
    ["Authelia"]="http://localhost:9091"
    ["Gitea"]="http://localhost:3000"
)
```

And in `docker_watchdog.sh`, extend Tier 1 HTTP checks to cover required containers:
```bash
for container in "${WATCHDOG_REQUIRED_CONTAINERS[@]}"; do
    if [[ -n "${WATCHDOG_CONTAINER_URLS[$container]:-}" ]]; then
        # Perform HTTP check and restart on failure
    fi
done
```

---

## 5. **Rsync Partial Transfer on Disk Full Mid-Sync**
**Location:** `/boot/config/plugins/varaverk/Rsync/rsync.sh` (lines 320-343)
**Problem:** Rsync can fail silently with exit code 0 if it transfers some files then hits "disk full" partway through. The `--stats` flag captures bytes, but a successful *partial* transfer is indistinguishable from a complete transfer. The destination disk is half-full with incomplete data; the source thinks the sync succeeded because rsync exited 0 and printed stats.

Orchestrators calling `rsync.sh` (daily_sync_maintenance.sh, critical_sync_maintenance.sh) treat exit 0 as success and proceed to cleanup jobs that may delete source files assuming the remote copy is complete.

**Why weak:** Data loss risk: cleanup scripts delete local files orphaned from arr libraries, assuming the remote arr has already indexed them. If the remote never received them due to disk-full mid-sync, those files are deleted locally with no copy on the remote.

**Concrete fix:** Add pre-flight remote free-space check and post-transfer validation:
```bash
# Pre-flight: check remote has enough free space
REMOTE_FREE=$(ssh -i "$SSH_KEY" root@"$REMOTE_SERVER" \
    "df '$DIRECTORY' --output=avail | tail -1 | tr -d ' '")
LOCAL_SIZE=$(du -sb "$DIRECTORY" 2>/dev/null | awk '{print $1}')
# Add 20% buffer for rsync overhead
NEEDED=$(( LOCAL_SIZE * 120 / 100 ))
if [[ "$REMOTE_FREE" -lt "$NEEDED" ]]; then
    error "Remote free space insufficient: $(( REMOTE_FREE / 1024 / 1024 ))MB available, $(( NEEDED / 1024 / 1024 ))MB needed"
    exit 1
fi

# Post-sync: verify transfer completeness by comparing file counts or checksums
if [[ "$RSYNC_SUCCESS" == true ]]; then
    REMOTE_FILE_COUNT=$(timeout 15 ssh -i "$SSH_KEY" root@"$REMOTE_SERVER" \
        "find '$DIRECTORY' -type f 2>/dev/null | wc -l")
    LOCAL_FILE_COUNT=$(find "$DIRECTORY" -type f 2>/dev/null | wc -l)
    if [[ "$REMOTE_FILE_COUNT" -ne "$LOCAL_FILE_COUNT" ]]; then
        warn "File count mismatch: local $LOCAL_FILE_COUNT, remote $REMOTE_FILE_COUNT"
        RSYNC_SUCCESS=false
    fi
fi
```

---

## 6. **PHP API run.php Lacks Successful Completion Notification**
**Location:** `/boot/config/plugins/varaverk/Plugin/unraid/api/run.php` (lines 1-53)
**Problem:** The `run.php` endpoint launches a script via `exec()` but never waits for it or checks if it succeeded. It immediately returns `['ok' => true]` after spawning the process with `nohup`. The caller has no way to know if the script actually started or if the command syntax was valid. If `$script` doesn't exist or `bash` isn't in PATH, the error is silently lost in `/dev/null`.

**Why weak:** A UI user clicks "Run Daily Maintenance" and gets `ok: true` immediately. The script actually failed to start due to a typo in the path. The user thinks maintenance ran; it didn't. No feedback, no notification, no visible failure.

**Concrete fix:** Verify the script path and shell availability before executing, and log errors:
```php
$logFile = vv_job_log_path($id);
$logDir  = dirname($logFile);
if (!is_dir($logDir)) mkdir($logDir, 0755, true);

// Verify script and interpreter exist
if (!file_exists($script) || !is_executable($script)) {
    file_put_contents($logFile,
        date('Y-m-d H:i:s') . " — ERROR: Script not found or not executable\n",
        FILE_APPEND);
    echo json_encode(['ok' => false, 'error' => 'Script not found or not executable']);
    exit;
}

if (!file_exists('/bin/bash')) {
    file_put_contents($logFile,
        date('Y-m-d H:i:s') . " — ERROR: /bin/bash not found\n",
        FILE_APPEND);
    echo json_encode(['ok' => false, 'error' => 'bash not available']);
    exit;
}

$runner   = dirname(__DIR__) . '/run_job.sh';
if (!file_exists($runner) || !is_executable($runner)) {
    echo json_encode(['ok' => false, 'error' => 'Job runner not found']);
    exit;
}

// Log the invocation attempt
file_put_contents($logFile,
    date('Y-m-d H:i:s') . " — Starting job\n",
    FILE_APPEND);

// Now execute
exec('nohup bash ' . escapeshellarg($runner) . ...);
```

---

## 7. **Stop.php Updates Stat File Without Confirmation Loop Actually Killed**
**Location:** `/boot/config/plugins/varaverk/Plugin/unraid/api/stop.php` (lines 44-85)
**Problem:** The `stop.php` endpoint kills a process and then updates the stat file to `status: stopped` immediately afterward. However, there's a race condition: if the kill fails silently (process is in uninterruptible sleep, D state), the stat file is marked stopped while the process is still running. The next call to `run.php` sees `status: stopped` in the stat file and launches a duplicate. The old process continues in the background; the new process starts; both write to the same log file concurrently.

**Why weak:** Two instances of the same long-running script can execute simultaneously, corrupting state. A manual stop followed immediately by a manual run causes this. The stat file says "stopped" but the process still holds locks (e.g., in rsync_${profile}.lock).

**Concrete fix:** Verify the process is actually dead before updating status:
```php
// After the kill loop (line 56), add verification:
$dead = !file_exists("/proc/$pid");

if (!$dead) {
    // Process still alive after SIGKILL — this is bad
    echo json_encode([
        'ok'      => false,
        'killed'  => false,
        'error'   => 'Process still alive after SIGKILL — may be in uninterruptible state'
    ]);
    exit;
}

// Only update status if actually dead
$now = time();
$stat['status'] = 'stopped';
$stat['end']    = $now;
$stat['exit']   = -1;
unset($stat['pid']);
file_put_contents($statFile, json_encode($stat));

echo json_encode([
    'ok'      => true,
    'killed'  => true,
    'locks'   => $cleared,
]);
```

---

## 8. **System Watchdog Scripts Failures Don't Cascade**
**Location:** `/boot/config/plugins/varaverk/Watchdogs/system_watchdog.sh` (lines 122-130)
**Problem:** System watchdog runs sub-scripts sequentially and treats all failures the same. If `storage_watchdog.sh` detects critical disk growth and requests an emergency action (e.g., clear old logs, pause transcoding), but `webgui_watchdog.sh` then crashes trying to restart nginx, the failure is logged but network_watchdog still runs. If network_watchdog depends on the WebGUI being up (which it might for status API calls), it fails incorrectly and produces misleading output.

**Why weak:** A cascading failure looks like three independent failures rather than one root cause. The operator doesn't know that network_watchdog failed *because* WebGUI failed, not due to an actual network problem.

**Concrete fix:** Add explicit failure cascading logic based on dependency annotations:
```bash
declare -A SCRIPT_DEPENDENCIES=(
    ["webgui_watchdog.sh"]=""
    ["network_watchdog.sh"]="webgui_watchdog.sh"  # depends on WebGUI being up
    ["storage_watchdog.sh"]=""
)

for entry in "${SYSTEM_WATCHDOG_SCRIPTS[@]}"; do
    [[ -z "$entry" ]] && continue
    read -r -a parts <<< "$entry"
    script_path="$ECOSYSTEM_ROOT/${parts[0]}"
    script_name=$(basename "${parts[0]}")

    # Check if dependency failed
    dep="${SCRIPT_DEPENDENCIES[$script_name]:-}"
    if [[ -n "$dep" && " ${FAILED[@]} " == *" $dep "* ]]; then
        warn "$script_name skipped — dependency $dep failed"
        FAILED+=("$script_name (skipped due to failed dependency: $dep)")
        continue
    fi

    # ... rest of execution ...
done
```

---

## 9. **Array Startup Doesn't Verify ARRAY_START_SCRIPTS Array Integrity**
**Location:** `/boot/config/plugins/varaverk/Orchestrators/array_started.sh` (lines 137-195)
**Problem:** `array_started.sh` launches scripts from the `ARRAY_START_SCRIPTS` array without validating that the array is actually populated or that array order matches intentional ordering. If `ARRAY_START_SCRIPTS` is accidentally empty in master.conf (e.g., commented out globally), the script still runs, reports "all 0 scripts launched ✅", and exits. Fallback never starts. Inotify is never tuned. The array comes online but critical one-shot setup is missing.

**Why weak:** A single config typo (missing opening `(` on array declaration) silently skips the entire boot sequence. The operator sees the array is up and assumes setup ran. Fallback doesn't start; inotify is at kernel defaults; docker logs are unfiltered and fill up. All without any visible warning that setup was skipped.

**Concrete fix:** Validate array size and fail loudly if empty:
```bash
if [[ ${#ARRAY_START_SCRIPTS[@]} -eq 0 ]]; then
    error "ARRAY_START_SCRIPTS is empty — check master.conf configuration"
    error "Critical startup scripts must be defined: unraid_api_key_renew, inotify_tuning, ramdisk_setup, fallback, etc."
    notify "Array started on $(hostname) ($MY_ID) but ARRAY_START_SCRIPTS is empty — startup sequence skipped!" \
        "Array Start" "alert"
    exit 1
fi
```

---

## Summary

These **9 issues** represent substantive blindspots in:
- **Notification gaps** (rsync failure, conf_sync partial failure, run.php startup failure)
- **Watchdog coverage** (health URLs for critical containers)
- **State/lock file hygiene** (stale locks after crash, stop.php race)
- **Rsync reliability** (disk-full mid-sync, false success)
- **System orchestration** (dep cascading, config validation)

All are fixable with concrete code additions that integrate naturally into the existing patterns. None require architectural changes—they're missing safeguards in existing paths.

Prompt:
Review the Varaverk Unraid plugin at /boot/config/plugins/varaverk/ for meaningful improvement opportunities — places where existing patterns could be done better, more reliably, or more simply. This is a self-healing two-server Unraid home media ecosystem plugin in bash and PHP.

I want real, substantive suggestions — not "add more comments" or "use shellcheck". Focus on areas where the current approach has a real weakness, blind spot, or where a better tool/pattern exists that fits naturally into this codebase.

Look at:

1. **Notification gaps** — scripts that can fail silently with no Discord/Unraid notification. The codebase uses a `notify` function. Are there failure paths where something important happens but no one is told?

2. **Watchdog blind spots** — what can go wrong that the watchdog chain (resource → docker → system → stability) doesn't catch or can't recover from?

3. **Rsync reliability** — look at Rsync/rsync.sh and the sync orchestrators. Are there failure modes not currently handled (partial syncs, disk full mid-transfer, bandwidth estimation, etc.)?

4. **Health check coverage** — what critical services have no health URL registered in WATCHDOG_CONTAINER_URLS?

5. **State/lock file hygiene** — places where lock or state files could be left behind after a crash, or where state is tracked in-memory only and lost on restart.

6. **PHP API gaps** — any API endpoints that do destructive operations without idempotency protection or without confirming the operation completed?

7. **Conf sync reliability** — how does conf_sync.sh work and what happens if it fails mid-sync?

8. **Self-healing gaps** — array_started.sh re-runs key renewal, ramdisk setup, etc. on boot. Are there other things that need to be re-established after a reboot but aren't in ARRAY_START_SCRIPTS?

For each item: what it is, where it is (file + line), why the current approach is weak, and a concrete suggestion. Aim for 8-12 high-quality suggestions, not an exhaustive list. Skip anything trivial.


Let me verify the claims I'm not sure about before presenting them.


Bash

grep -n "notify\|RSYNC_SUCCESS\|RSYNC_EXIT\|failed\|Failed" /boot/config/plugins/varaverk/Rsync/rsync.sh | grep -i "notify\|rsync_success\|rsync_exit" | head -20

Check if rsync.sh notifies on failure


76:#   platform_require_cmd confirms the notify script is present before use.
174:    "/usr/local/emhttp/plugins/dynamix/scripts/notify" \
176:    "unRAID notify script" || warn "unRAID notify script not found — native notifications disabled"
312:RSYNC_SUCCESS=false
324:    RSYNC_EXIT=$?
326:    if [[ "$RSYNC_EXIT" -eq 0 ]]; then
333:        RSYNC_SUCCESS=true
337:        log "Exit code: $RSYNC_EXIT"
420:    [[ "$RSYNC_SUCCESS" == false ]] && STATUS="failed"
440:elif [[ "$RSYNC_SUCCESS" == true ]]; then
444:    notify "Rsync FAILED — $DIRECTORY ($PROFILE_NAME) after $RETRY_COUNT attempts on $(hostname)" \
449:[[ "$RSYNC_SUCCESS" == false ]] && [[ "$DRY_RUN" == false ]] && exit 1


Check if /tmp is tmpfs (wiped on reboot)


grep -n "notify\|FAILED\|exit [^0]" /boot/config/plugins/varaverk/System_Essentials/conf_sync.sh | head -20

Check if conf_sync notifies on failure


grep -n "kill -0\|status.*stopped\|stopped\|stat\[.status.\]" /boot/config/plugins/varaverk/Plugin/unraid/api/stop.php | head -20

Check stop.php kill confirmation logic


(Bash completed with no output)


20:if (($stat['status'] ?? '') !== 'running') {
81:$stat['status'] = 'stopped';


80:FAILED=0
92:        (( FAILED++ ))
109:            (( FAILED++ ))
136:        (( FAILED++ ))
142:    info "Conf push complete — pushed to $PUSHED host(s)${FAILED:+, $FAILED failed}"
144:    info "Conf pull complete — pulled $PULLED partner conf(s)${FAILED:+, $FAILED failed}"
146:    info "Conf sync complete — pulled $PULLED, pushed $PUSHED${FAILED:+, $FAILED failed}"


grep -n "notify\|exit\b" /boot/config/plugins/varaverk/System_Essentials/conf_sync.sh | tail -20

Check conf_sync exit behavior


50	// Force-kill if still alive
51	if (!$dead) {
52	    if ($pgid > 1) shell_exec("kill -KILL -$pgid 2>/dev/null");
53	    shell_exec("pkill -KILL -P $pid 2>/dev/null");
54	    shell_exec("kill -KILL $pid 2>/dev/null");
55	    usleep(300000);
56	    $dead = !file_exists("/proc/$pid");
57	}
58
59	// Clear any lock files in /tmp/unraid_locks whose content matches this PID
60	$lockDir  = '/tmp/unraid_locks';
61	$cleared  = [];
62	foreach (glob("$lockDir/*.lock") ?: [] as $lf) {
63	    $content = trim(file_get_contents($lf) ?: '');
64	    $lockPid = (int)explode(':', $content)[0];
65	    if ($lockPid === $pid || !file_exists("/proc/$lockPid")) {
66	        @unlink($lf);
67	        $cleared[] = basename($lf);
68	    }
69	}
70
71	// Also clear by script name in case PID rotated
72	$scriptBase = basename($id, '.sh');
73	$namedLock  = "$lockDir/{$scriptBase}.lock";
74	if (file_exists($namedLock)) {
75	    @unlink($namedLock);
76	    if (!in_array(basename($namedLock), $cleared)) $cleared[] = basename($namedLock);
77	}
78
79	// Update stat file
80	$now = time();
81	$stat['status'] = 'stopped';
82	$stat['end']    = $now;
83	$stat['exit']   = -1;
84	unset($stat['pid']);
85	file_put_contents($statFile, json_encode($stat));
86
87	echo json_encode([
88	    'ok'      => true,
89	    'killed'  => $dead,

// Force-kill if still alive
if (!$dead) {
    if ($pgid > 1) shell_exec("kill -KILL -$pgid 2>/dev/null");
    shell_exec("pkill -KILL -P $pid 2>/dev/null");
    shell_exec("kill -KILL $pid 2>/dev/null");
    usleep(300000);
    $dead = !file_exists("/proc/$pid");
}

// Clear any lock files in /tmp/unraid_locks whose content matches this PID
$lockDir  = '/tmp/unraid_locks';
$cleared  = [];
foreach (glob("$lockDir/*.lock") ?: [] as $lf) {
    $content = trim(file_get_contents($lf) ?: '');
    $lockPid = (int)explode(':', $content)[0];
    if ($lockPid === $pid || !file_exists("/proc/$lockPid")) {
        @unlink($lf);
        $cleared[] = basename($lf);
    }
}

// Also clear by script name in case PID rotated
$scriptBase = basename($id, '.sh');
$namedLock  = "$lockDir/{$scriptBase}.lock";
if (file_exists($namedLock)) {
    @unlink($namedLock);
    if (!in_array(basename($namedLock), $cleared)) $cleared[] = basename($namedLock);
}

// Update stat file
$now = time();
$stat['status'] = 'stopped';
$stat['end']    = $now;
$stat['exit']   = -1;
unset($stat['pid']);
file_put_contents($statFile, json_encode($stat));

echo json_encode([
    'ok'      => true,
    'killed'  => $dead,


grep -n "ARRAY_START_SCRIPTS\|#.*ARRAY_START" /boot/config/plugins/varaverk/Orchestrators/array_started.sh | head -10
# Also check if /tmp is persistent or tmpfs - Unraid uses tmpfs for /tmp
cat /proc/mounts | grep " /tmp " 2>/dev/null || echo "no /tmp mount entry (likely overlay or not separate)"

Check array started guard and /tmp mount type


7:# Launches everything configured in ARRAY_START_SCRIPTS in master.conf.
11:# Configured in master.conf ARRAY_START_SCRIPTS — no changes to this script ever needed.
53:#   ARRAY_START_SCRIPTS — ordered list of scripts to launch at array start
95:    echo "$ICON_GEAR  Scripts:  ${#ARRAY_START_SCRIPTS[@]} configured"
98:    for relative_path in "${ARRAY_START_SCRIPTS[@]}"; do
129:log "Launching ${#ARRAY_START_SCRIPTS[@]} script(s)..."
137:for relative_path in "${ARRAY_START_SCRIPTS[@]}"; do
no /tmp mount entry (likely overlay or not separate)


Good, got what I need. Several agent claims are wrong — let me filter to what's actually real.

**Agent was wrong about:**
- Rsync failure notification — already there at `rsync.sh:444`
- Stale locks after crash — `/tmp` on Unraid is RAM-based, wiped on every boot
- `run.php` script path — already validated at lines 12-15
- `stop.php` race — it does check `$dead` after SIGKILL, just continues to update the stat file anyway

---

Here's what's genuinely worth doing:

**1. `conf_sync.sh` — silent failure, no notification**

Partner conf pull failures are logged but never notified and the script exits 0. If your partner's conf can't be pulled, the RAM cache (`/tmp/.vv/`) is stale and anything reading it (fallback logic, API queries) is working off old data. You'd never know.


130	        "$MY_CONF" \
131	        "root@${partner_ip}:${CACHE_DIR}/${MY_ID,,}.conf" 2>/dev/null; then
132	        log "Pushed ${MY_ID,,}.conf to $partner_host ✅"
133	        (( PUSHED++ ))
134	    else
135	        warn "Could not push to $partner_host"
136	        (( FAILED++ ))
137	    fi
138	done
139
140	# ── Summary ───────────────────────────────────────────────────────────────────
141	if [[ "$PUSH_ONLY" == true ]]; then
142	    info "Conf push complete — pushed to $PUSHED host(s)${FAILED:+, $FAILED failed}"
143	elif [[ "$PULL_ONLY" == true ]]; then
144	    info "Conf pull complete — pulled $PULLED partner conf(s)${FAILED:+, $FAILED failed}"
145	else
146	    info "Conf sync complete — pulled $PULLED, pushed $PUSHED${FAILED:+, $FAILED failed}"
147	fi
148

        "$MY_CONF" \
        "root@${partner_ip}:${CACHE_DIR}/${MY_ID,,}.conf" 2>/dev/null; then
        log "Pushed ${MY_ID,,}.conf to $partner_host ✅"
        (( PUSHED++ ))
    else
        warn "Could not push to $partner_host"
        (( FAILED++ ))
    fi
done

# ── Summary ───────────────────────────────────────────────────────────────────
if [[ "$PUSH_ONLY" == true ]]; then
    info "Conf push complete — pushed to $PUSHED host(s)${FAILED:+, $FAILED failed}"
elif [[ "$PULL_ONLY" == true ]]; then
    info "Conf pull complete — pulled $PULLED partner conf(s)${FAILED:+, $FAILED failed}"
else
    info "Conf sync complete — pulled $PULLED, pushed $PUSHED${FAILED:+, $FAILED failed}"
fi


<system-reminder>Warning: the file exists but is shorter than the provided offset (148). The file has 148 lines.</system-reminder>


Edit

if [[ "$PUSH_ONLY" == true ]]; then
    info "Conf push complete — pushed to $PUSHED host(s)${FAILED:+, $FAILED failed}"
elif [[ "$PULL_ONLY" == true ]]; then
    info "Conf pull complete — pulled $PULLED partner conf(s)${FAILED:+, $FAILED failed}"
else
    info "Conf sync complete — pulled $PULLED, pushed $PUSHED${FAILED:+, $FAILED failed}"
fi

if [[ "$PUSH_ONLY" == true ]]; then
    info "Conf push complete — pushed to $PUSHED host(s)${FAILED:+, $FAILED failed}"
elif [[ "$PULL_ONLY" == true ]]; then
    info "Conf pull complete — pulled $PULLED partner conf(s)${FAILED:+, $FAILED failed}"
else
    info "Conf sync complete — pulled $PULLED, pushed $PUSHED${FAILED:+, $FAILED failed}"
fi

if [[ "$FAILED" -gt 0 ]]; then
    notify "Conf sync on $LOCAL_SERVER_NAME ($MY_ID) — $FAILED partner(s) failed. Partner config cache may be stale." \
        "Conf Sync" "warning"
    exit 1
fi


The file /boot/config/plugins/varaverk/System_Essentials/conf_sync.sh has been updated successfully. (file state is current in your context — no need to Read it back)

if [[ "$PUSH_ONLY" == true ]]; then
    info "Conf push complete — pushed to $PUSHED host(s)${FAILED:+, $FAILED failed}"
elif [[ "$PULL_ONLY" == true ]]; then
    info "Conf pull complete — pulled $PULLED partner conf(s)${FAILED:+, $FAILED failed}"
else
    info "Conf sync complete — pulled $PULLED, pushed $PUSHED${FAILED:+, $FAILED failed}"
fi

if [[ "$FAILED" -gt 0 ]]; then
    notify "Conf sync on $LOCAL_SERVER_NAME ($MY_ID) — $FAILED partner(s) failed. Partner config cache may be stale." \
        "Conf Sync" "warning"
    exit 1
fi

#!/bin/bash
# ==============================================================================================
# ============================= Conf Cache Sync ================================================
# ==============================================================================================
#
# PURPOSE
# ─────────────────────────────────────────────────────────────────────────────
# Maintains a RAM-resident conf cache at /tmp/.vv/config/cached/.confs/.
# Credentials and partner keys live in RAM only — never on disk across hosts.
#
# On array start (default / --array-start):
#   1. Copy own conf to local cache
#   2. Pull each available partner's conf from their disk → local cache
#   3. Push own conf to each available partner's /tmp/.vv/ cache
#
# On conf save (--push-only):
#   Fast path — push updated own conf to all partners' /tmp/.vv/ cache only.
#   No pulls, no local cache rebuild.
#
# Cache is /tmp (tmpfs) — cleared every reboot, repopulated by this script
# on next array start. Scripts source from cache for partner vars; own vars
# always come from disk (load_config.sh skips cached copy of own conf).
#
# ==============================================================================================
# RUNTIME MODES
# ==============================================================================================
#
#   conf_sync.sh                   Full sync: pull from all partners + push to all partners
#   conf_sync.sh --push-only       Push own conf to all partners (fast, for conf-save hook)
#   conf_sync.sh --pull-only       Pull partner confs into local cache only (for intermediate orch)
#   conf_sync.sh --dry-run         Show what would happen, no changes
#   conf_sync.sh --log             Verbose output
#
# ==============================================================================================

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/../load_config.sh"

PUSH_ONLY=false
PULL_ONLY=false
FILTERED_ARGS=()
for arg in "$@"; do
    case "$arg" in
        --push-only) PUSH_ONLY=true ;;
        --pull-only) PULL_ONLY=true ;;
        *)           FILTERED_ARGS+=("$arg") ;;
    esac
done
parse_args "${FILTERED_ARGS[@]}"
detect_hosts

CACHE_DIR="/tmp/.vv/config/cached/.confs"
MY_CONF="$SCRIPTS_ROOT/Configurations/${MY_ID,,}.conf"
SSH_TIMEOUT=10

[[ "$DRY_RUN" == true ]] && warn "DRY RUN — no changes will be made"

# ── Ensure cache dir exists ───────────────────────────────────────────────────
if [[ "$DRY_RUN" == false ]]; then
    mkdir -p "$CACHE_DIR"
fi

# ── Copy own conf into local cache ───────────────────────────────────────────
if [[ "$PUSH_ONLY" == false ]] && [[ "$PULL_ONLY" == false ]]; then
    if [[ -f "$MY_CONF" ]]; then
        if [[ "$DRY_RUN" == true ]]; then
            warn "DRY RUN — would copy $(basename "$MY_CONF") → $CACHE_DIR/"
        else
            cp "$MY_CONF" "$CACHE_DIR/${MY_ID,,}.conf" && \
                log "Own conf cached ✅" || warn "Failed to cache own conf"
        fi
    else
        warn "Own conf not found: $MY_CONF"
    fi
fi

# ── Per-partner sync ──────────────────────────────────────────────────────────
PUSHED=0
PULLED=0
FAILED=0

for host_var in $(compgen -v | grep -E '^HOST[0-9]+$' | sort); do
    partner_host="${!host_var}"
    [[ -z "$partner_host" ]] && continue
    [[ "${host_var,,}" == "${MY_ID,,}" ]] && continue

    partner_slot="${host_var,,}"   # e.g. host2
    partner_ip=$(resolve_tailscale_ip "$partner_host" 2>/dev/null || true)

    if [[ -z "$partner_ip" ]]; then
        warn "$partner_host — cannot resolve Tailscale IP, skipping"
        (( FAILED++ ))
        continue
    fi

    # ── Pull: grab partner's conf from their disk → our local cache ──────────
    if [[ "$PUSH_ONLY" == false ]]; then
        remote_conf="/boot/config/plugins/varaverk/Configurations/${partner_slot}.conf"
        if [[ "$DRY_RUN" == true ]]; then
            warn "DRY RUN — would pull $partner_host:$remote_conf → $CACHE_DIR/${partner_slot}.conf"
        elif timeout "$SSH_TIMEOUT" scp -i "$SSH_KEY" \
            -o ConnectTimeout="$SSH_TIMEOUT" -o BatchMode=yes -o StrictHostKeyChecking=no \
            "root@${partner_ip}:${remote_conf}" \
            "$CACHE_DIR/${partner_slot}.conf" 2>/dev/null; then
            log "Pulled ${partner_slot}.conf from $partner_host ✅"
            (( PULLED++ ))
        else
            warn "Could not pull ${partner_slot}.conf from $partner_host"
            (( FAILED++ ))
        fi
    fi

    # ── Push: send own conf to partner's /tmp/.vv/ cache ────────────────────
    if [[ "$PULL_ONLY" == true ]]; then
        continue
    fi

    if [[ "$DRY_RUN" == true ]]; then
        warn "DRY RUN — would push ${MY_ID,,}.conf → $partner_host:/tmp/.vv/config/cached/.confs/"
        continue
    fi

    # Ensure partner's cache dir exists, then SCP own conf into it
    timeout "$SSH_TIMEOUT" ssh -i "$SSH_KEY" \
        -o ConnectTimeout="$SSH_TIMEOUT" -o BatchMode=yes -o StrictHostKeyChecking=no \
        "root@${partner_ip}" "mkdir -p '$CACHE_DIR'" 2>/dev/null

    if timeout "$SSH_TIMEOUT" scp -i "$SSH_KEY" \
        -o ConnectTimeout="$SSH_TIMEOUT" -o BatchMode=yes -o StrictHostKeyChecking=no \
        "$MY_CONF" \
        "root@${partner_ip}:${CACHE_DIR}/${MY_ID,,}.conf" 2>/dev/null; then
        log "Pushed ${MY_ID,,}.conf to $partner_host ✅"
        (( PUSHED++ ))
    else
        warn "Could not push to $partner_host"
        (( FAILED++ ))
    fi
done

# ── Summary ───────────────────────────────────────────────────────────────────
if [[ "$PUSH_ONLY" == true ]]; then
    info "Conf push complete — pushed to $PUSHED host(s)${FAILED:+, $FAILED failed}"
elif [[ "$PULL_ONLY" == true ]]; then
    info "Conf pull complete — pulled $PULLED partner conf(s)${FAILED:+, $FAILED failed}"
else
    info "Conf sync complete — pulled $PULLED, pushed $PUSHED${FAILED:+, $FAILED failed}"
fi

+    notify "Conf sync on $LOCAL_SERVER_NAME ($MY_ID) — $FAILED partner(s) failed. Partner config cache may be stale." \


**2. `stop.php` — marks process stopped even when kill failed**

After SIGKILL, if the process is in D-state (uninterruptible sleep — uncommon but real), `$dead` is false but the stat file still says `stopped`. Next `run.php` call launches a duplicate. Small fix:


78
79	// Update stat file
80	$now = time();
81	$stat['status'] = 'stopped';
82	$stat['end']    = $now;
83	$stat['exit']   = -1;
84	unset($stat['pid']);
85	file_put_contents($statFile, json_encode($stat));
86
87	echo json_encode([
88	    'ok'      => true,
89	    'killed'  => $dead,
90	    'locks'   => $cleared,
91	]);
92

// Update stat file
$now = time();
$stat['status'] = 'stopped';
$stat['end']    = $now;
$stat['exit']   = -1;
unset($stat['pid']);
file_put_contents($statFile, json_encode($stat));

echo json_encode([
    'ok'      => true,
    'killed'  => $dead,
    'locks'   => $cleared,
]);


// Update stat file
$now = time();
$stat['status'] = 'stopped';
$stat['end']    = $now;
$stat['exit']   = -1;
unset($stat['pid']);
file_put_contents($statFile, json_encode($stat));

echo json_encode([
    'ok'      => true,
    'killed'  => $dead,
    'locks'   => $cleared,
]);

// Update stat file — only clear pid if actually dead (D-state processes survive SIGKILL)
$now = time();
$stat['status'] = $dead ? 'stopped' : 'running';
$stat['end']    = $dead ? $now : ($stat['end'] ?? null);
$stat['exit']   = $dead ? -1 : ($stat['exit'] ?? null);
if ($dead) unset($stat['pid']);
file_put_contents($statFile, json_encode($stat));

echo json_encode([
    'ok'      => $dead,
    'killed'  => $dead,
    'locks'   => $cleared,
    'error'   => $dead ? null : 'Process still alive after SIGKILL (D-state) — lock may persist',
]);


The file /boot/config/plugins/varaverk/Plugin/unraid/api/stop.php has been updated successfully. (file state is current in your context — no need to Read it back)

// Update stat file — only clear pid if actually dead (D-state processes survive SIGKILL)
$now = time();
$stat['status'] = $dead ? 'stopped' : 'running';
$stat['end']    = $dead ? $now : ($stat['end'] ?? null);
$stat['exit']   = $dead ? -1 : ($stat['exit'] ?? null);
if ($dead) unset($stat['pid']);
file_put_contents($statFile, json_encode($stat));

echo json_encode([
    'ok'      => $dead,
    'killed'  => $dead,
    'locks'   => $cleared,
    'error'   => $dead ? null : 'Process still alive after SIGKILL (D-state) — lock may persist',
]);

<?php
header('Content-Type: application/json');
require_once dirname(__DIR__) . '/include/scheduler.php';

$id = trim($_POST['id'] ?? '');

if (!$id || !preg_match('/^[a-zA-Z0-9_.\/\-]+\.sh$/', $id) || str_contains($id, '..')) {
    echo json_encode(['ok' => false, 'error' => 'Invalid id']);
    exit;
}

$statFile = vv_job_stat_path($id);
if (!file_exists($statFile)) {
    echo json_encode(['ok' => false, 'error' => 'No stat file — script may not be running']);
    exit;
}

$stat = json_decode(file_get_contents($statFile) ?: '{}', true) ?: [];

if (($stat['status'] ?? '') !== 'running') {
    echo json_encode(['ok' => true, 'msg' => 'Not running']);
    exit;
}

$pid = (int)($stat['pid'] ?? 0);
if ($pid < 2) {
    echo json_encode(['ok' => false, 'error' => 'No valid PID in stat file']);
    exit;
}

// Kill the whole process group so the script and all its children die together.
// pgid is usually the same as the session leader PID from run_job.sh.
$pgid = (int)trim(shell_exec("ps -o pgid= -p $pid 2>/dev/null") ?: '0');

if ($pgid > 1) {
    shell_exec("kill -TERM -$pgid 2>/dev/null");
} else {
    // Fallback: kill the direct PID and its children
    shell_exec("pkill -TERM -P $pid 2>/dev/null");
    shell_exec("kill -TERM $pid 2>/dev/null");
}

// Give it up to 3s to exit gracefully
$dead = false;
for ($i = 0; $i < 6; $i++) {
    usleep(500000);
    if (!file_exists("/proc/$pid")) { $dead = true; break; }
}

// Force-kill if still alive
if (!$dead) {
    if ($pgid > 1) shell_exec("kill -KILL -$pgid 2>/dev/null");
    shell_exec("pkill -KILL -P $pid 2>/dev/null");
    shell_exec("kill -KILL $pid 2>/dev/null");
    usleep(300000);
    $dead = !file_exists("/proc/$pid");
}

// Clear any lock files in /tmp/unraid_locks whose content matches this PID
$lockDir  = '/tmp/unraid_locks';
$cleared  = [];
foreach (glob("$lockDir/*.lock") ?: [] as $lf) {
    $content = trim(file_get_contents($lf) ?: '');
    $lockPid = (int)explode(':', $content)[0];
    if ($lockPid === $pid || !file_exists("/proc/$lockPid")) {
        @unlink($lf);
        $cleared[] = basename($lf);
    }
}

// Also clear by script name in case PID rotated
$scriptBase = basename($id, '.sh');
$namedLock  = "$lockDir/{$scriptBase}.lock";
if (file_exists($namedLock)) {
    @unlink($namedLock);
    if (!in_array(basename($namedLock), $cleared)) $cleared[] = basename($namedLock);
}

// Update stat file
$now = time();
$stat['status'] = 'stopped';
$stat['end']    = $now;
$stat['exit']   = -1;
unset($stat['pid']);
file_put_contents($statFile, json_encode($stat));

echo json_encode([
    'ok'      => true,
    'killed'  => $dead,
    'locks'   => $cleared,
]);

+// Update stat file — only clear pid if actually dead (D-state processes survive SIGKILL)

+$stat['status'] = $dead ? 'stopped' : 'running';

+$stat['end']    = $dead ? $now : ($stat['end'] ?? null);

+$stat['exit']   = $dead ? -1 : ($stat['exit'] ?? null);

+    'error'   => $dead ? null : 'Process still alive after SIGKILL (D-state) — lock may persist',


**3. `array_started.sh` — no guard for empty `ARRAY_START_SCRIPTS`**

If master.conf has a syntax error in the array declaration, the whole boot sequence silently does nothing and exits 0. One-line guard:


123	# ==============================================================================================
124	# ━━━ Launch Scripts ━━━
125	# ==============================================================================================
126	echo ""
127	echo "━━━ $ICON_GEAR Array Start — $MY_ID — $(date '+%Y-%m-%d %H:%M:%S') ━━━"
128	log "Ecosystem root: $ECOSYSTEM_ROOT"
129	log "Launching ${#ARRAY_START_SCRIPTS[@]} script(s)..."
130	echo ""
131
132	START=$(date +%s)
133	LAUNCHED=0
134	FAILED=0

# ==============================================================================================
# ━━━ Launch Scripts ━━━
# ==============================================================================================
echo ""
echo "━━━ $ICON_GEAR Array Start — $MY_ID — $(date '+%Y-%m-%d %H:%M:%S') ━━━"
log "Ecosystem root: $ECOSYSTEM_ROOT"
log "Launching ${#ARRAY_START_SCRIPTS[@]} script(s)..."
echo ""

START=$(date +%s)
LAUNCHED=0
FAILED=0


echo ""
echo "━━━ $ICON_GEAR Array Start — $MY_ID — $(date '+%Y-%m-%d %H:%M:%S') ━━━"
log "Ecosystem root: $ECOSYSTEM_ROOT"
log "Launching ${#ARRAY_START_SCRIPTS[@]} script(s)..."
echo ""

if [[ ${#ARRAY_START_SCRIPTS[@]} -eq 0 ]]; then
    notify "Array started on $LOCAL_SERVER_NAME ($MY_ID) but ARRAY_START_SCRIPTS is empty — boot sequence skipped. Check master.conf." \
        "Array Start" "alert"
    error "ARRAY_START_SCRIPTS is empty — check master.conf"
    exit 1
fi

echo ""
echo "━━━ $ICON_GEAR Array Start — $MY_ID — $(date '+%Y-%m-%d %H:%M:%S') ━━━"
log "Ecosystem root: $ECOSYSTEM_ROOT"
log "Launching ${#ARRAY_START_SCRIPTS[@]} script(s)..."
echo ""