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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).
63 lines
2.7 KiB
Bash
Executable File
63 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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# Postgres backup/restore hook for the immich `database` service (VectorChord/pgvecto.rs). Restore
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# follows the same pattern as the (green) matrix-synapse recipe — a local-trust `pg_hba` lockout so
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# the app can't reconnect and race the reimport — plus the `search_path` rewrite from immich's docs
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# (https://docs.immich.app/administration/backup-and-restore) so the vector/vchord types resolve.
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set -e
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BACKUP_FILE='/var/lib/postgresql/data/backup.sql'
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PGDATA_DIR='/var/lib/postgresql/data'
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HBA="${PGDATA_DIR}/pg_hba.conf"
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export PGPASSWORD=$(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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# Reload pg_hba WITHOUT depending on a client connection — SIGHUP the postmaster directly. This is
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# what guarantees the app is re-admitted at the end even if a psql connection isn't available.
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reload_pg() {
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local pid
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pid=$(head -1 "${PGDATA_DIR}/postmaster.pid" 2>/dev/null || true)
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if [ -n "$pid" ]; then kill -HUP "$pid" 2>/dev/null || true
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else psql -U "$DB_USER" -d postgres -c "SELECT pg_reload_conf();" >/dev/null 2>&1 || true; fi
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}
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restore_hba() {
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if [ -f "${HBA}.ccci.bak" ]; then
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cat "${HBA}.ccci.bak" > "$HBA"
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rm -f "${HBA}.ccci.bak"
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reload_pg
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fi
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}
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# Always re-admit the app, even if any step below fails or the hook is signalled.
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trap restore_hba EXIT INT TERM
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# Lock the networked app out for the duration of the restore: a local-trust-only pg_hba + reload
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# makes postgres reject every TCP connection, so immich-server can't reconnect and re-run its own
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# migrations concurrently with (and conflicting with) the import. Then terminate the connections it
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# already holds so DROP DATABASE can proceed.
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cp "$HBA" "${HBA}.ccci.bak"
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printf 'local all all trust\n' > "$HBA"
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reload_pg
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psql -U "$DB_USER" -d postgres -c \
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"SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE datname='${DB_NAME}' AND pid<>pg_backend_pid();" >/dev/null
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psql -U "$DB_USER" -d postgres -c "DROP DATABASE ${DB_NAME} WITH (FORCE);" >/dev/null
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createdb -U "$DB_USER" "$DB_NAME"
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# Rewrite the empty search_path the VectorChord dump sets so vector/vchord type + operator
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# references resolve during the import (immich upstream restore procedure), then import alone.
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gunzip -c "$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" --single-transaction --set ON_ERROR_STOP=on >/dev/null
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restore_hba
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trap - EXIT INT TERM
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}
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$@
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