153 lines
9.2 KiB
Bash
Executable File
153 lines
9.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Update a Linux Docker Compose clone from its configured Git upstream.
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set -Eeuo pipefail
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DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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cd "$DIR"
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exec 9>"$DIR/.deploy.lock"
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flock -w 1800 9
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LOG_FILE="${LOG_FILE:-$DIR/logs/docker-update.log}"
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mkdir -p "$(dirname "$LOG_FILE")"
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log() { printf '[%s] %s\n' "$(date '+%Y-%m-%d %H:%M:%S')" "$*" | tee -a "$LOG_FILE"; }
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die() { log "ERROR: $*"; exit 1; }
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migration_image=""
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remote_migration_image=""
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previous_image=""
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previous_release=""
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rollback_tag=""
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cutover=0
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probe='const r=await fetch(process.argv[1],{cache:"no-store",signal:AbortSignal.timeout(5000)});const d=await r.json();if(!r.ok||d.database!==true||d.release!==process.argv[2]){console.error(JSON.stringify({http:r.status,database:d.database,release:d.release,expected:process.argv[2]}));process.exit(1)}'
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verify_container() {
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local target="$1" release="$2" attempt
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for attempt in $(seq 1 30); do
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if docker exec "$target" node --input-type=module -e "$probe" "http://127.0.0.1:3002/api/health" "$release" >>"$LOG_FILE" 2>&1; then return 0; fi
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sleep 3
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done
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return 1
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}
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finish() {
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local status=$? restored
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trap - EXIT
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if [[ "$status" != 0 && "$cutover" = 1 ]]; then
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docker compose logs --tail 100 cms >>"$LOG_FILE" 2>&1 || true
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if [[ -n "$previous_image" ]]; then
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log "Update failed; restoring previous image $previous_image. Database migrations are not reversed."
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if CMS_RELEASE="$rollback_tag" docker compose up -d --no-deps --no-build --force-recreate cms >>"$LOG_FILE" 2>&1; then
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restored="$(docker compose ps -q cms 2>>"$LOG_FILE" || true)"
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if [[ -n "$restored" && "$(docker inspect --format '{{.Image}}' "$restored")" = "$previous_image" ]] && verify_container "$restored" "$previous_release"; then
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log "Rollback verified locally: $previous_release. Check public routing separately."
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else
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log "ERROR: rollback verification failed. Inspect $LOG_FILE; previous image retained as epicnext-cms:$rollback_tag."
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fi
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else
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log "ERROR: rollback could not recreate CMS. Previous image retained as epicnext-cms:$rollback_tag."
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fi
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else
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log "First installation failed: no previous image exists to restore. Candidate retained for diagnosis."
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fi
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fi
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if [[ -n "$migration_image" ]]; then docker image rm "$migration_image" >>"$LOG_FILE" 2>&1 || true; fi
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if [[ -n "$remote_migration_image" ]]; then docker image rm "$remote_migration_image" >>"$LOG_FILE" 2>&1 || true; fi
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# Keep the recovery tag on failure for manual recovery, including same-commit rebuilds.
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if [[ ( "$status" = 0 || "$cutover" = 0 ) && -n "$rollback_tag" ]]; then docker image rm "epicnext-cms:$rollback_tag" >>"$LOG_FILE" 2>&1 || true; fi
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exit "$status"
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}
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trap finish EXIT
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trap 'exit 130' INT
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trap 'exit 143' TERM
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trap 'log "Update failed; inspect $LOG_FILE. No volumes or local files were deleted."' ERR
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# An existing CI deployment is a different owner of the same host port.
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if [ "$(docker inspect --format '{{.State.Running}}' epicnext-cms-app 2>/dev/null || true)" = true ]; then
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die "This host is managed by CI (epicnext-cms-app). Update through CI, not a second Compose deployment."
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fi
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[[ -z "$(git status --porcelain --untracked-files=normal)" ]] || die "Working tree is not clean. Commit or stash local work first."
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git rev-parse --abbrev-ref --symbolic-full-name '@{upstream}' >/dev/null || die "Configure this branch's Git upstream before updating."
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script_before="$(git hash-object scripts/docker-update.sh)"
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git pull --ff-only >>"$LOG_FILE" 2>&1
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if [ "$script_before" != "$(git hash-object scripts/docker-update.sh)" ]; then
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log "Updater changed; restarting the newly pulled script."
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exec 9>&-
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exec bash "$DIR/scripts/docker-update.sh"
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fi
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# Load after pulling so image location changes follow the repository.
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source "$DIR/scripts/docker-config.sh"
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load_docker_config "$DIR" || die "Invalid .docker-install: expected MODE=prebuilt or source and PUBLIC_URL=http(s)://your-host."
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export CMS_RELEASE="$(git rev-parse HEAD)"
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[[ "$CMS_RELEASE" =~ ^[0-9a-f]{40}$ ]] || die "Invalid Git commit."
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[[ -f .env ]] || die "Create .env before installing or updating."
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docker info >/dev/null
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docker compose config --quiet
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previous_container="$(docker compose ps -q cms)"
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if [[ -n "$previous_container" ]]; then
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previous_image="$(docker inspect --format '{{.Image}}' "$previous_container")"
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previous_release="$(docker image inspect --format '{{index .Config.Labels "org.opencontainers.image.revision"}}' "$previous_image")"
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[[ "$previous_release" =~ ^[0-9a-f]{40}$ ]] || die "Previous image lacks a valid release label; automatic rollback cannot be verified."
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rollback_tag="rollback-$CMS_RELEASE-$$"
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docker image tag "$previous_image" "epicnext-cms:$rollback_tag"
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fi
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log "Preparing release $CMS_RELEASE from $DIR"
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# The migrations stage contains matching source and locked dependencies.
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# No Node/package manager installation on the host is required.
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migration_image="epicnext-cms-migrations:$CMS_RELEASE"
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if [[ -n "${CMS_IMAGE_REPOSITORY:-}" ]]; then
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[[ "$CMS_IMAGE_REPOSITORY" =~ ^[a-z0-9.-]+(:[0-9]+)?/[a-z0-9._/-]+$ ]] || die "Invalid CMS_IMAGE_REPOSITORY; use registry/owner/image without a tag."
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log "Pulling prebuilt application and matching migrations for $CMS_RELEASE"
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docker pull "$CMS_IMAGE_REPOSITORY:$CMS_RELEASE" >>"$LOG_FILE" 2>&1 || die "Application image unavailable. Publication for this commit may still be running; retry bash cms update after CI succeeds. For private packages, log in to the registry first."
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remote_migration_image="$CMS_IMAGE_REPOSITORY:$CMS_RELEASE-migrations"
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docker pull "$remote_migration_image" >>"$LOG_FILE" 2>&1 || die "Matching migrations image unavailable. Current CMS is unchanged; retry after publication succeeds."
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docker tag "$CMS_IMAGE_REPOSITORY:$CMS_RELEASE" "epicnext-cms:$CMS_RELEASE"
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docker tag "$CMS_IMAGE_REPOSITORY:$CMS_RELEASE-migrations" "$migration_image"
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else
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docker build --network=host --target migrations --build-arg NEXT_DEPLOYMENT_ID="$CMS_RELEASE" -t "$migration_image" . >>"$LOG_FILE" 2>&1
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docker compose build --build-arg NEXT_DEPLOYMENT_ID="$CMS_RELEASE" cms >>"$LOG_FILE" 2>&1
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fi
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expected_image="$(docker image inspect --format '{{.Id}}' "epicnext-cms:$CMS_RELEASE")"
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revision="$(docker image inspect --format '{{index .Config.Labels "org.opencontainers.image.revision"}}' "$expected_image")"
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[[ "$revision" = "$CMS_RELEASE" ]] || die "Built image has revision $revision, expected $CMS_RELEASE."
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migration_mounts=(--mount "type=bind,source=$DIR/.env,target=/app/.env,readonly")
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if [[ -f "$DIR/.env.local" ]]; then migration_mounts+=(--mount "type=bind,source=$DIR/.env.local,target=/app/.env.local,readonly"); fi
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docker run --rm --network host "${migration_mounts[@]}" --entrypoint pnpm "$migration_image" db:migrate >>"$LOG_FILE" 2>&1
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log "Build and migrations completed; recreating only the CMS service."
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cutover=1
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docker compose up -d --no-deps --no-build --force-recreate cms >>"$LOG_FILE" 2>&1
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container="$(docker compose ps -q cms)"
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[[ -n "$container" ]] || die "Compose did not start the CMS container."
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actual_image="$(docker inspect --format '{{.Image}}' "$container")"
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[[ "$actual_image" = "$expected_image" ]] || die "Running image $actual_image differs from built image $expected_image."
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verify_container "$container" "$CMS_RELEASE" || die "HTTP health/release verification failed."
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if [[ -n "${CMS_PUBLIC_URL:-}" ]]; then
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[[ "$CMS_PUBLIC_URL" = https://* || "$CMS_PUBLIC_URL" = http://* ]] || die "CMS_PUBLIC_URL must be an HTTP(S) URL."
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docker exec "$container" node --input-type=module -e "$probe" "${CMS_PUBLIC_URL%/}/api/health?release=$CMS_RELEASE" "$CMS_RELEASE" >>"$LOG_FILE" 2>&1 || die "Public domain serves another release or is unhealthy. Check reverse proxy/CDN destination."
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log "Public URL verified: $CMS_PUBLIC_URL"
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else
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log "Public domain was not checked. Set CMS_PUBLIC_URL to verify reverse proxy/CDN routing as well."
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fi
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log "Verified release $CMS_RELEASE, image $actual_image, container $container"
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cutover=0
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# Record only this checkout's successful release tags; never prune Docker globally.
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history="$DIR/logs/docker-release-history.log"
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mkdir -p "$DIR/logs"
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touch "$history"
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mapfile -t releases < <(printf '%s\n' "$CMS_RELEASE" "$previous_release"; cat "$history")
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kept=()
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pending=()
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for release in "${releases[@]}"; do
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[[ "$release" =~ ^[0-9a-f]{40}$ ]] || continue
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[[ " ${kept[*]} ${pending[*]} " != *" $release "* ]] || continue
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if [[ "${#kept[@]}" -lt 2 ]]; then kept+=("$release"); continue; fi
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# Even stopped containers belonging to other deployments protect an image.
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if users="$(docker ps -aq --filter "ancestor=epicnext-cms:$release")" && [[ -z "$users" ]] && docker image rm "epicnext-cms:$release" >>"$LOG_FILE" 2>&1; then
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if [[ -n "${CMS_IMAGE_REPOSITORY:-}" ]]; then
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if remote_users="$(docker ps -aq --filter "ancestor=$CMS_IMAGE_REPOSITORY:$release")" && [[ -z "$remote_users" ]]; then
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docker image rm "$CMS_IMAGE_REPOSITORY:$release" >>"$LOG_FILE" 2>&1 || true
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fi
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fi
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log "Removed superseded release tag $release"
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else
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pending+=("$release")
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fi
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done
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printf '%s\n' "${kept[@]}" "${pending[@]}" > "$history.tmp"
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mv "$history.tmp" "$history"
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log "Keeping the two latest releases; in-use images and persistent volumes are preserved."
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