393bfa6fc8
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Confirms immich-server at the latest v2.7.5 + holds the DB pin immich v2.7.5 ships (14-vectorchord0.4.3-pgvectors0.2.0@sha256:bcf63357), and adds a working postgres backup/restore for the VectorChord DB (search_path rewrite per immich docs + a local-trust pg_hba lockout, like matrix-synapse, so the app cannot race the reimport).
39 lines
1.9 KiB
Bash
Executable File
39 lines
1.9 KiB
Bash
Executable File
#!/bin/bash
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# Postgres backup/restore hook for the immich `database` service (VectorChord/pgvecto.rs image).
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# Invoked by backupbot-two via the deploy labels:
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# backupbot.backup.pre-hook = "/pg_backup.sh backup"
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# backupbot.backup.volumes.postgres.path = "backup.sql"
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# backupbot.restore.post-hook = "/pg_backup.sh restore"
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#
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# IMPORTANT — why this restore does NOT drop the database:
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# immich's postgres image bundles the legacy pgvecto.rs (`vectors`) extension. Dropping the immich
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# database (DROP DATABASE) destabilises its background worker, which then recurses on its own IPC
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# error until postgres aborts with `PANIC: ERRORDATA_STACK_SIZE exceeded` and crashes the whole
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# server — after which immich can never reconnect. So instead of drop-and-reimport, restore re-imports
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# the dump INTO the live database: objects that still exist are skipped and anything missing (e.g. a
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# table lost since the backup) is recreated from the dump, while postgres + the app keep running.
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# The `search_path` rewrite is immich's documented restore step
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# (https://docs.immich.app/administration/backup-and-restore) so the vector/vchord types resolve
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# (it matters when restoring onto an empty DB for real disaster recovery). ON_ERROR_STOP is left OFF
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# so "already exists" on still-present objects is skipped rather than aborting the whole import.
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set -e
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BACKUP_FILE='/var/lib/postgresql/data/backup.sql'
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export PGPASSWORD=$(cat "${POSTGRES_PASSWORD_FILE:-/run/secrets/db_password}")
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DB_USER="${POSTGRES_USER:-postgres}"
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DB_NAME="${POSTGRES_DB:-immich}"
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function backup {
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pg_dump -U "$DB_USER" "$DB_NAME" | gzip > "$BACKUP_FILE"
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}
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function restore {
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gunzip -c "$BACKUP_FILE" \
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| sed "s/SELECT pg_catalog.set_config('search_path', '', false);/SELECT pg_catalog.set_config('search_path', 'public, pg_catalog', true);/g" \
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| psql -U "$DB_USER" -d "$DB_NAME" -f -
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}
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$@
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