Files
Varaverk/Orchestrators/transcode_management.sh
Gmer4Lfe d5cf3db2ec Close every orchestrator the same way, and make skipped work a visible outcome
A gated-off section left nothing failed, so the weekly could run for hours and report "all
complete" beside "0 shares synced"; skipped is now derived from what was expected rather than
self-reported, and the verdict degrades to PARTIAL instead of flattering.
2026-08-23 16:38:58 -04:00

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#!/bin/bash
# ==============================================================================================
# ============================= Transcode Management ===========================================
# ==============================================================================================
#
# PURPOSE
# ─────────────────────────────────────────────────────────────────────────────
# Runs TRANSCODE_MANAGEMENT_SCRIPTS in order each cron cycle — this is the
# single cron entry replacing individual entries for each child script.
# Schedule: */7 * * * * (every 7 minutes)
#
# ==============================================================================================
# OPERATIONAL MODEL
# ==============================================================================================
#
# Order driven by TRANSCODE_MANAGEMENT_SCRIPTS in master.conf.
# Default: transcode_cleanup.sh → transcode_manager.sh
#
# transcode_cleanup.sh
# Removes aged segment files not open by any process. Uses lsof for O(1)
# per-file active check. Triggers flip-back to ramdisk after cleanup if
# the ramdisk usage has recovered.
#
# transcode_manager.sh
# Checks ramdisk usage against thresholds. Flips the symlink between ramdisk
# and SSD as needed. Writes one entry to TRANSCODE_DAILY_LOG after each run.
# Shows active Emby sessions with play method.
#
# DAILY LOG (written by transcode_manager.sh, not this orchestrator):
# Format: DATE|RAMDISK_USED_GB|FLIP_COUNT|RAM_SESSIONS|SSD_SESSIONS
# Trimmed to TRANSCODE_LOG_RETENTION days on each write.
# Read by sunday_morning_coffee_report.sh and weekly_health_digest.sh.
#
# ==============================================================================================
# DESIGN PRINCIPLES
# ==============================================================================================
#
# Cleanup First, Decide Later
# Stale segment files from ended sessions inflate the ramdisk usage reading
# and trigger unnecessary SSD flips even when active sessions would fit on
# the ramdisk. Cleanup runs first so the manager measures real current usage.
# Order is config-driven (TRANSCODE_MANAGEMENT_SCRIPTS) but this dependency
# is real — reordering the array changes what the manager measures.
#
# Delegated Logging
# This orchestrator does not write its own log — transcode_manager.sh owns
# the TRANSCODE_DAILY_LOG write. One log writer, one format, no duplication.
#
# ==============================================================================================
# OPERATIONAL SAFEGUARDS
# ==============================================================================================
#
# Root Enforcement
# Mount and docker operations require root.
#
# Lock Acquisition
# acquire_lock prevents concurrent 7-minute cycles overlapping. Cleanup and the manager
# both touch the same ramdisk, and two cycles at once could have one deleting files
# while the other is measuring usage to decide whether to flip.
#
# Host Detection
# detect_hosts() aliases RAMDISK_PATH, TRANSCODE_SSD and RAMDISK_WARN_GB per host.
#
# Empty Job List Guard
# Exits with an error and a notification if TRANSCODE_MANAGEMENT_SCRIPTS is empty —
# without it the ramdisk would silently stop being cleaned or flipped, and the first
# symptom would be a full ramdisk stalling playback.
#
# Ordering Is Load-Bearing
# Cleanup runs before the manager so the manager measures real active-session usage
# rather than usage inflated by stale files. Reversing them would trigger flips that
# a cleanup two seconds later would have made unnecessary.
#
# Dry Run Propagation
# --dry-run is passed through to every script in TRANSCODE_MANAGEMENT_SCRIPTS.
#
# Any-Failure Exit Code
# Exits 1 if any child failed, 0 otherwise — the individual exit codes are not
# propagated, only whether anything failed. A failure in an early child is therefore
# never masked by a later success.
#
# Notification Contract
# notify() fires on failure and is skipped in --dry-run.
#
# ==============================================================================================
# CONFIGURATION
# ==============================================================================================
#
# master.conf
#
# TRANSCODE_MANAGEMENT_SCRIPTS — scripts to run, in order
# TRANSCODE_DAILY_LOG — daily stats log (written by transcode_manager.sh)
# TRANSCODE_LOG_RETENTION — days to keep (trimmed by manager)
# TRANSCODE_STATE_FILE — current state (ramdisk_used, flip_count, etc.)
# TRANSCODE_* threshold vars — see master.conf Transcode Manager section
#
# ==============================================================================================
# RUNTIME MODES
# ==============================================================================================
#
# transcode_management.sh
# Normal run (every 7 minutes via cron).
#
# transcode_management.sh --dry-run
# Preview without changes (passed to every script in TRANSCODE_MANAGEMENT_SCRIPTS).
#
# transcode_management.sh --status
# Show configuration and current state.
#
# transcode_management.sh --log
# Verbose output from every child script.
#
# ==============================================================================================
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ECOSYSTEM_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
source "$ECOSYSTEM_ROOT/load_config.sh"
parse_args "$@"
# ==============================================================================================
# ━━━ Setup ━━━
# ==============================================================================================
if [[ "$EUID" -ne 0 ]]; then
error "Must be run as root"
exit 1
fi
acquire_lock "wait"
if ! command -v docker &>/dev/null; then
error "Docker command not found"
exit 1
fi
# detect_hosts() sets MY_ID and aliases all HOST*_TRANSCODE_* vars
detect_hosts
# An unconfigured job list would run nothing and still report "0/0 passed" — indistinguishable
# from a healthy run. Fail loudly instead of silently doing no work.
# This orchestrator never timed itself, so its summary could not report a duration. Set before
# any work so the figure means the cycle, not the tail of it.
CYCLE_START=$(date +%s)
if [[ ${#TRANSCODE_MANAGEMENT_SCRIPTS[@]} -eq 0 ]]; then
error "TRANSCODE_MANAGEMENT_SCRIPTS is empty — no transcode management scripts will run"
error "Check TRANSCODE_MANAGEMENT_SCRIPTS in master.conf"
notify "transcode management scripts skipped on $(hostname) ($MY_ID) — TRANSCODE_MANAGEMENT_SCRIPTS is empty" \
"$(basename "$0" .sh)" "warning"
exit 1
fi
[[ "$DRY_RUN" == true ]] && warn "DRY RUN — passing through to child scripts"
# ==============================================================================================
# ━━━ Status ━━━
# ==============================================================================================
if [[ "$SHOW_STATUS" == true ]]; then
echo ""
echo "━━━━━ $ICON_SUMMARY TRANSCODE MANAGEMENT STATUS ━━━━━"
echo "$ICON_HOST Identity: $MY_ID ($LOCAL_SERVER_NAME)"
echo "$ICON_RAM Ramdisk: $RAMDISK_PATH ($RAMDISK_SIZE)"
echo "$ICON_DISK SSD fallback: $TRANSCODE_SSD"
echo "$ICON_LINK Symlink: $TRANSCODE_LINK"
echo "$ICON_TIME Schedule: every 7 minutes"
echo ""
echo "━━━ Child Scripts ━━━"
for _entry in "${TRANSCODE_MANAGEMENT_SCRIPTS[@]}"; do
_script_path="$SCRIPT_DIR/../$_entry"
_script_name=$(basename "$_entry")
if [[ -f "$_script_path" ]]; then
echo " $ICON_SUCCESS $_script_name — found"
else
echo " $ICON_ERROR $_script_name — NOT FOUND at $_script_path"
fi
done
echo ""
echo "━━━ Daily Log ━━━"
if [[ -f "${TRANSCODE_DAILY_LOG:-}" ]] && [[ -s "$TRANSCODE_DAILY_LOG" ]]; then
ENTRY_COUNT=$(wc -l < "$TRANSCODE_DAILY_LOG")
OLDEST=$(awk -F'|' 'NR==1{print $1}' "$TRANSCODE_DAILY_LOG")
NEWEST=$(awk -F'|' 'END{print $1}' "$TRANSCODE_DAILY_LOG")
echo " $ICON_SUCCESS $TRANSCODE_DAILY_LOG ($ENTRY_COUNT entries, $OLDEST$NEWEST)"
else
echo " $ICON_SKIP $TRANSCODE_DAILY_LOG — no data yet"
fi
echo ""
echo "━━━ Current State ━━━"
if [[ -f "${TRANSCODE_STATE_FILE:-/tmp/transcode_state.db}" ]]; then
while IFS='=' read -r key val; do
[[ -n "$key" ]] && echo " $key = $val"
done < "${TRANSCODE_STATE_FILE:-/tmp/transcode_state.db}"
else
echo " State file not found (ramdisk_setup.sh creates it at array start)"
fi
echo "━━━━━━━━━━━━━━━━━━━━━━━"
exit 0
fi
# ==============================================================================================
# ━━━ Pre-run State Snapshot ━━━
# ==============================================================================================
if mountpoint -q "${RAMDISK_PATH:-}" 2>/dev/null; then
_rd_used=$(df "$RAMDISK_PATH" --output=used 2>/dev/null | tail -1 | tr -d ' ')
_rd_avail=$(df "$RAMDISK_PATH" --output=avail 2>/dev/null | tail -1 | tr -d ' ')
_rd_used_gb=$(awk "BEGIN {printf \"%.2f\", ${_rd_used:-0}/1048576}")
_rd_avail_gb=$(awk "BEGIN {printf \"%.2f\", ${_rd_avail:-0}/1048576}")
_rd_target=$(readlink "${TRANSCODE_LINK:-}" 2>/dev/null || echo "unknown")
log "$ICON_RAM Ramdisk: ${_rd_used_gb}GB used / ${_rd_avail_gb}GB avail — symlink → ${_rd_target##*/}"
else
log "$ICON_RAM Ramdisk: not mounted"
fi
# ==============================================================================================
# ━━━ Run Scripts ━━━
# ==============================================================================================
# transcode_manager.sh writes to TRANSCODE_DAILY_LOG after each run — no flag here
# suppresses that; it owns the log write for this cycle regardless of position ✅
JOB_PASS=()
JOB_FAIL=()
for _entry in "${TRANSCODE_MANAGEMENT_SCRIPTS[@]}"; do
[[ -z "$_entry" ]] && continue
run_orch_child "$_entry"
done
# ==============================================================================================
# ━━━ Summary — minimal one-liner by default (7-min cadence — keep it quiet when healthy) ━━━
# ==============================================================================================
# Quiet by default — 7-min cadence. Anything failed or skipped expands on its own.
JOB_COUNT="${#TRANSCODE_MANAGEMENT_SCRIPTS[@]}"
orchestrator_summary "TRANSCODE CYCLE" "${CYCLE_START:-$(date +%s)}" "Transcode Management" quiet
# ==============================================================================================
# ━━━ Exit ━━━
# ==============================================================================================
[[ "${#JOB_FAIL[@]}" -gt 0 ]] && exit 1
exit 0