Gmer4Lfe
e13f2fa14f
- downloaders_reset: connection check block before slskd API sections; triggers PUT /api/v0/server reconnect if disconnected, polls 60s, gates Stuck Searches and Dead Transfer Records on SLSKD_CONNECTED - Sync all modified/new/deleted files from v2 refactor across Docker_Essentials, Media, Monitors, Partnership, Rsync, Tools, Transcodes, unRAID_Essentials, common.sh, master confs, and new Manual/README docs
290 lines
12 KiB
Bash
Executable File
290 lines
12 KiB
Bash
Executable File
#!/bin/bash
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# ==============================================================================================
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# ================================= Docker Network Connect =====================================
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# ==============================================================================================
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#
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# PURPOSE
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# ─────────────────────────────────────────────────────────────────────────────
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# Ensures custom Docker networks exist and connects configured containers to
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# them at every array start.
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#
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# Called via ARRAY_START_SCRIPTS — runs early in the array start sequence,
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# before watchdogs begin their first cycle. Idempotent: safe to re-run at any
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# time. Silent when everything is already correct. Notifies when a network had
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# to be created — that only happens after a unRAID update wipes custom networks,
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# and it is worth knowing when it does.
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#
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# ==============================================================================================
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# OPERATIONAL MODEL
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# ==============================================================================================
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#
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# For each configured network:
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#
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# 1. Does the network exist?
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# NO → create it (bridge driver, Docker assigns subnet automatically)
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# → send notification — creation is unexpected outside post-update recovery
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# YES → skip silently
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#
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# 2. For each configured container:
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# Already connected → skip silently
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# Not connected → connect it
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# Container missing → warn and skip — may not be running yet, not fatal
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#
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# ==============================================================================================
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# DESIGN PRINCIPLES
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# ==============================================================================================
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#
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# Idempotent by Design
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# Running this script multiple times produces the same result as running it
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# once. Skips anything already in the correct state without error or noise.
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#
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# Silent When Correct
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# Produces no output on a clean run. The absence of output is confirmation
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# that everything is already correct.
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#
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# Notify on Creation
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# Network creation is always notified because it should only happen after a
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# unRAID update. If it happens regularly something is misconfigured and the
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# operator needs to know.
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#
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# ==============================================================================================
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# OPERATIONAL SAFEGUARDS
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# ==============================================================================================
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#
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# Docker Daemon Check
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# Verifies daemon is responsive before any network operations. Network
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# commands against a hung daemon hang indefinitely.
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#
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# Timeout Protection
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# All docker commands wrapped in timeout. Daemon hangs cannot stall the
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# array start sequence.
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#
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# Empty Array Guards
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# Warns and exits cleanly if NETWORK_CONNECT_NETWORKS or
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# NETWORK_CONNECT_CONTAINERS are unconfigured.
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#
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# Command Validation
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# Validates unRAID notify script before use.
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#
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# ==============================================================================================
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# CONFIGURATION
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# ==============================================================================================
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#
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# master_host*.conf
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#
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# HOST*_NETWORK_CONNECT_NETWORKS
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# Networks to ensure exist at array start. Aliased by detect_hosts() →
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# NETWORK_CONNECT_NETWORKS
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#
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# HOST*_NETWORK_CONNECT_CONTAINERS
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# Containers to connect to every configured network. Aliased by
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# detect_hosts() → NETWORK_CONNECT_CONTAINERS
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#
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# ==============================================================================================
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# RUNTIME MODES
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# ==============================================================================================
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#
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# docker_network_connect.sh
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# Ensure all configured networks exist and containers are connected
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#
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# docker_network_connect.sh --dry-run
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# Preview what would be created or connected without making changes
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#
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# docker_network_connect.sh --status
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# Show current network state and container connection status
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#
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# docker_network_connect.sh --log
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# Verbose per-network per-container output
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#
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# ==============================================================================================
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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source "$SCRIPT_DIR/../load_config.sh"
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parse_args "$@"
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# ==============================================================================================
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# ━━━ Setup ━━━
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# ==============================================================================================
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if [[ "$EUID" -ne 0 ]]; then
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error "Must be run as root"
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exit 1
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fi
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acquire_lock
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if ! command -v docker &>/dev/null; then
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error "Docker not found — cannot manage networks"
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exit 1
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fi
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# detect_hosts() sets MY_ID and aliases HOST*_NETWORK_CONNECT_* arrays
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detect_hosts
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# Validate unRAID notify script — used for network creation alerts
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validate_unraid_cmd "/usr/local/emhttp/plugins/dynamix/scripts/notify" "" "" "unRAID notify script" || warn "unRAID notify script not found — native notifications disabled"
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# Docker daemon check — network operations are useless if daemon is hung
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DOCKER_TIMEOUT=15
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if ! timeout "$DOCKER_TIMEOUT" docker info >/dev/null 2>&1; then
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error "Docker daemon not responding — cannot manage networks"
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notify "docker_network_connect failed on $(hostname) — Docker daemon not responding" "Network Connect" "warning"
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exit 1
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fi
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# Empty array guards
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if [[ ${#NETWORK_CONNECT_NETWORKS[@]} -eq 0 ]]; then
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warn "NETWORK_CONNECT_NETWORKS is empty for $MY_ID — nothing to do"
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warn "Check HOST*_NETWORK_CONNECT_NETWORKS in master_host*.conf"
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exit 0
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fi
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if [[ ${#NETWORK_CONNECT_CONTAINERS[@]} -eq 0 ]]; then
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warn "NETWORK_CONNECT_CONTAINERS is empty for $MY_ID — no containers to connect"
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warn "Check HOST*_NETWORK_CONNECT_CONTAINERS in master_host*.conf"
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exit 0
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fi
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# ==============================================================================================
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# ━━━ Status ━━━
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# ==============================================================================================
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if [[ "$SHOW_STATUS" == true ]]; then
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echo ""
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echo "━━━━━ $ICON_SUMMARY STATUS ━━━━━"
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echo "$ICON_HOST Identity: $MY_ID ($LOCAL_SERVER_NAME)"
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echo "$ICON_DOCKER_NET Networks: ${NETWORK_CONNECT_NETWORKS[*]}"
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echo "$ICON_CONTAINERS Containers: ${NETWORK_CONNECT_CONTAINERS[*]}"
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echo ""
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echo "━━━ Network State ━━━"
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for network in "${NETWORK_CONNECT_NETWORKS[@]}"; do
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[[ -z "$network" ]] && continue
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if timeout "$DOCKER_TIMEOUT" docker network inspect "$network" &>/dev/null; then
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echo " $ICON_SUCCESS $network — exists"
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timeout "$DOCKER_TIMEOUT" docker network inspect "$network" \
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--format ' Subnet: {{range .IPAM.Config}}{{.Subnet}}{{end}}' 2>/dev/null
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else
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echo " $ICON_ERROR $network — missing (will be created on next run)"
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fi
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done
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echo ""
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echo "━━━ Container Connections ━━━"
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for container in "${NETWORK_CONNECT_CONTAINERS[@]}"; do
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[[ -z "$container" ]] && continue
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echo "$ICON_CONTAINERS $container:"
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timeout "$DOCKER_TIMEOUT" docker inspect "$container" \
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--format '{{range $k, $v := .NetworkSettings.Networks}} {{$k}}{{"\\n"}}{{end}}' \
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2>/dev/null || echo " not found"
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done
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echo "━━━━━━━━━━━━━━━━━━━━━━━"
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exit 0
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fi
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[[ "$DRY_RUN" == true ]] && warn "DRY RUN — no changes will be made"
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# ==============================================================================================
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# ━━━ Network Ensure + Connect ━━━
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# ==============================================================================================
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log "Networks: ${NETWORK_CONNECT_NETWORKS[*]}"
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log "Containers: ${NETWORK_CONNECT_CONTAINERS[*]}"
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START=$(date +%s)
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NETWORKS_CREATED=()
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CONNECTED=()
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SKIPPED=()
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FAILED=()
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for network in "${NETWORK_CONNECT_NETWORKS[@]}"; do
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[[ -z "$network" ]] && continue
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log "Processing network: $network"
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# ── Step 1 — ensure network exists ───────────────────────────────────────────────────────
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if timeout "$DOCKER_TIMEOUT" docker network inspect "$network" &>/dev/null; then
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log "$network exists ✅"
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else
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warn "$ICON_DOCKER_NET $network not found — creating (unRAID update may have wiped networks)"
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if [[ "$DRY_RUN" == true ]]; then
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warn "DRY RUN — would create: $network (bridge, auto subnet)"
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else
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if timeout "$DOCKER_TIMEOUT" docker network create \
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--driver bridge "$network" >/dev/null 2>&1; then
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warn "$ICON_DOCKER_NET $network created"
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NETWORKS_CREATED+=("$network")
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# Network creation is unexpected — notify so user is aware
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notify "Docker network created on $(hostname) — $network (unRAID update likely wiped it)" \
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"Network Connect" "normal"
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else
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error "$network — failed to create"
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FAILED+=("$network:create")
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continue
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fi
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fi
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fi
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# ── Step 2 — connect containers to this network ──────────────────────────────────────────
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for container in "${NETWORK_CONNECT_CONTAINERS[@]}"; do
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[[ -z "$container" ]] && continue
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# Container not found — warn and skip, not an error
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if ! timeout "$DOCKER_TIMEOUT" docker inspect "$container" &>/dev/null; then
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warn "$container not found — skipping (may not be running yet)"
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continue
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fi
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# Already connected — skip cleanly and silently
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if timeout "$DOCKER_TIMEOUT" docker network inspect "$network" \
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--format '{{range .Containers}}{{.Name}} {{end}}' 2>/dev/null \
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| grep -qw "$container"; then
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log "$container already on $network — skipping"
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SKIPPED+=("$container→$network")
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continue
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fi
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# Connect
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if [[ "$DRY_RUN" == true ]]; then
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warn "DRY RUN — would connect $container to $network"
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continue
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fi
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log "Connecting $container to $network..."
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if timeout "$DOCKER_TIMEOUT" docker network connect "$network" "$container" 2>/dev/null; then
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log "$container connected to $network"
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CONNECTED+=("$container→$network")
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else
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error "Failed to connect $container to $network"
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FAILED+=("$container:$network")
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fi
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done
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done
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END=$(date +%s)
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# ==============================================================================================
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# ━━━ Summary ━━━
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# ==============================================================================================
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# Always show summary — this runs at array start and output is useful for diagnostics
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echo ""
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echo "━━━━━ $ICON_SUMMARY NETWORK CONNECT SUMMARY ━━━━━"
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echo "$ICON_HOST Identity: $MY_ID ($LOCAL_SERVER_NAME)"
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echo "$ICON_TIME Duration: $(format_duration $((END - START)))"
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[[ ${#NETWORKS_CREATED[@]} -gt 0 ]] && warn "$ICON_DOCKER_NET Created: ${NETWORKS_CREATED[*]} (networks were missing)"
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[[ ${#CONNECTED[@]} -gt 0 ]] && log "Connected: ${CONNECTED[*]}"
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[[ ${#SKIPPED[@]} -gt 0 ]] && log "Already connected: ${#SKIPPED[@]} skipped"
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[[ ${#FAILED[@]} -gt 0 ]] && echo "$ICON_ERROR Failed: ${FAILED[*]}"
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if [[ "$DRY_RUN" == true ]]; then
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warn "DRY RUN — no changes made"
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elif [[ ${#FAILED[@]} -gt 0 ]]; then
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echo "$ICON_ERROR Status: SOME OPERATIONS FAILED"
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notify "Docker network connect failed on $(hostname) — ${FAILED[*]}" "Network Connect" "warning"
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elif [[ ${#NETWORKS_CREATED[@]} -gt 0 ]]; then
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warn "Networks recreated — ${NETWORKS_CREATED[*]} — unRAID update likely wiped them"
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else
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log "All networks healthy — no action needed"
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fi
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echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
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[[ ${#FAILED[@]} -gt 0 ]] && exit 1
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exit 0 |