feat(docker): add docker_update.sh for daily container image pulls
Pulls the latest image for each container in DAILY_RESTART_CONTAINERS before docker_daily_restart.sh runs. Containers stay running during the pull — no extra downtime. Mirrors the weekly update pattern exactly. Toggle: DAILY_CONTAINER_UPDATES=true/false in master.conf. Pull failures are non-fatal — the daily restart proceeds regardless. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Gmer4Lfe
co-authored by
Claude Sonnet 4.6
Claude Sonnet 4.6
parent
69464ba385
commit
0adfe04173
@@ -0,0 +1,171 @@
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#!/bin/bash
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# ==============================================================================================
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# ================================= Docker Update ==============================================
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# ==============================================================================================
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# Pulls the latest image for each container in HOST*_DAILY_RESTART_CONTAINERS.
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# Called by daily_sync_maintenance.sh before docker_daily_restart.sh — containers stay
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# running during the pull, so there is no extra downtime.
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#
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# ── WHY SAME LIST AS DAILY RESTART ───────────────────────────────────────────────────────────
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# Containers that restart daily (auth stack: Authelia, NPM, Mariadb, Redis, etc.) are
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# exactly the containers that benefit from staying current. Reusing DAILY_RESTART_CONTAINERS
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# means no second list to maintain — add/remove a container once and both update + restart
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# reflect the change automatically.
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#
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# ── WHAT THIS DOES ────────────────────────────────────────────────────────────────────────────
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# docker pull <image> — fetches the latest digest from the registry
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# Old vs new image ID comparison — distinguishes "updated" from "already current"
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# Containers keep running — pull does not affect the live container
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# docker_daily_restart.sh runs after — containers restart on the fresh image
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#
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# ── TOGGLE ────────────────────────────────────────────────────────────────────────────────────
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# DAILY_CONTAINER_UPDATES=false in master.conf — skips all pulls, exits cleanly
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# docker_daily_restart.sh still runs regardless — update and restart are independent
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#
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# ── CONFIGURATION ─────────────────────────────────────────────────────────────────────────────
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# master.conf: DAILY_CONTAINER_UPDATES — enable/disable (default: true)
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# master_host*.conf: HOST*_DAILY_RESTART_CONTAINERS — containers to update
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#
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# ── USAGE ─────────────────────────────────────────────────────────────────────────────────────
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# docker_update.sh — normal run
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# docker_update.sh --dry-run — show what would be pulled
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# docker_update.sh --log — verbose output
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# docker_update.sh --status — show config and exit
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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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if ! command -v docker &>/dev/null; then
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error "Docker command not found"
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exit 1
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fi
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detect_hosts
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if [[ "${DAILY_CONTAINER_UPDATES:-true}" != "true" ]]; then
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log "DAILY_CONTAINER_UPDATES=false — skipping container updates"
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exit 0
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fi
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if [[ ${#DAILY_RESTART_CONTAINERS[@]} -eq 0 ]]; then
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warn "DAILY_RESTART_CONTAINERS is empty for $MY_ID — nothing to update"
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warn "Check HOST${MY_ID#HOST}_DAILY_RESTART_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_CONTAINERS Containers: ${DAILY_RESTART_CONTAINERS[*]}"
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echo "$ICON_GEAR Enabled: ${DAILY_CONTAINER_UPDATES:-true}"
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echo "$ICON_GEAR Dry Run: $DRY_RUN"
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echo "━━━━━━━━━━━━━━━━━━━━━━━"
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exit 0
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fi
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[[ "$DRY_RUN" == true ]] && warn "DRY RUN — no images will be pulled"
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# ==============================================================================================
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# ━━━ Pull Updates ━━━
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# ==============================================================================================
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echo ""
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echo "━━━ $ICON_CONTAINERS Docker Update — $(date '+%Y-%m-%d %H:%M:%S') ━━━"
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echo "$ICON_CONTAINERS Containers: ${DAILY_RESTART_CONTAINERS[*]}"
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echo ""
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START=$(date +%s)
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UPDATED=()
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UP_TO_DATE=()
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FAILED=()
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SKIPPED=()
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for container in "${DAILY_RESTART_CONTAINERS[@]}"; do
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[[ -z "$container" ]] && continue
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echo "━━━ $ICON_CONTAINERS $container ━━━"
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if ! docker inspect "$container" &>/dev/null; then
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warn "$container — not found, skipping"
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SKIPPED+=("$container")
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echo ""
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continue
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fi
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IMAGE=$(docker inspect --format='{{.Config.Image}}' "$container" 2>/dev/null)
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if [[ -z "$IMAGE" ]]; then
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warn "$container — could not determine image, skipping"
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SKIPPED+=("$container")
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echo ""
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continue
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fi
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log "$container — image: $IMAGE"
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if [[ "$DRY_RUN" == true ]]; then
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warn "DRY RUN — would pull: $IMAGE"
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UPDATED+=("$container")
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echo ""
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continue
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fi
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# Capture image ID before pull to detect whether an update landed
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OLD_ID=$(docker image inspect "$IMAGE" --format='{{.Id}}' 2>/dev/null || echo "")
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echo "$ICON_SYNC Pulling $IMAGE..."
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if docker pull "$IMAGE" 2>&1 | grep -E "^(Status:|Digest:|Error|error)" | sed 's/^/ /'; then
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NEW_ID=$(docker image inspect "$IMAGE" --format='{{.Id}}' 2>/dev/null || echo "")
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if [[ -n "$OLD_ID" ]] && [[ "$OLD_ID" != "$NEW_ID" ]]; then
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echo "$ICON_DONE $container — updated ✅"
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UPDATED+=("$container")
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else
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log "$container — already up to date"
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UP_TO_DATE+=("$container")
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fi
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else
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warn "$container — pull failed ($IMAGE)"
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FAILED+=("$container")
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fi
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echo ""
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done
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END=$(date +%s)
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# ==============================================================================================
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# ━━━ Summary ━━━
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# ==============================================================================================
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echo "━━━━━ $ICON_SUMMARY DOCKER UPDATE SUMMARY ━━━━━"
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echo "$ICON_HOST Identity: $MY_ID ($LOCAL_SERVER_NAME)"
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echo "$ICON_TIME Duration: $(format_duration $(( END - START )))"
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[[ ${#UPDATED[@]} -gt 0 ]] && echo "$ICON_DONE Updated: ${UPDATED[*]}"
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[[ ${#UP_TO_DATE[@]} -gt 0 ]] && echo "$ICON_RUNNING Up to date: ${UP_TO_DATE[*]}"
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[[ ${#SKIPPED[@]} -gt 0 ]] && echo "$ICON_WARN 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 images pulled"
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elif [[ ${#FAILED[@]} -eq 0 ]]; then
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log "$ICON_DONE Status: done ✅ — ${#UPDATED[@]} updated, ${#UP_TO_DATE[@]} current"
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else
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warn "Status: ${#FAILED[@]} pull(s) failed — restart will proceed with existing images"
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fi
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echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
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# Pull failures are non-fatal — restart proceeds regardless
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exit 0
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@@ -269,9 +269,15 @@
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#"Media/lidarr_cleanup.sh" # remove orphaned music files — enable when ready
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#"Media/sonarr_cleanup.sh" # remove orphaned TV files — enable when ready
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#"Media/radarr_cleanup.sh" # remove orphaned movie files — enable when ready
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"Docker_Essentials/docker_update.sh" # pull container image updates before restart
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"Docker_Essentials/docker_daily_restart.sh" # daily container restarts — runs last
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)
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# Pull latest images for DAILY_RESTART_CONTAINERS before the daily restart.
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# Containers keep running during pull — no extra downtime.
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# Set false to skip updates while still running the daily restart.
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DAILY_CONTAINER_UPDATES=true
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# Media shares synced daily by daily_sync_maintenance.sh.
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# Defined per-host in master_host*.conf — HOST1_DAILY_SYNC_SHARES and HOST2_DAILY_SYNC_SHARES.
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# Each server syncs only the shares it owns — direction is automatic.
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