V6 Phase 4 - Postgres backup to Synology

deploy/backup/create_postgres_backup.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env sh
+set -eu
+
+COMPOSE_FILE="${COMPOSE_FILE:-docker-compose.production.yml}"
+ENV_FILE="${ENV_FILE:-.env.production}"
+BACKUP_DIR="${BACKUP_DIR:-./data/backups}"
+RETENTION_DAYS="${BACKUP_RETENTION_DAYS:-14}"
+SYNOLOGY_BACKUP_DIR="${SYNOLOGY_BACKUP_DIR:-}"
+
+timestamp="$(date -u +%Y%m%d-%H%M%S)"
+backup_file="postgres-${timestamp}.dump"
+
+mkdir -p "${BACKUP_DIR}"
+
+docker compose --env-file "${ENV_FILE}" -f "${COMPOSE_FILE}" exec -T postgres sh -lc \
+  "PGPASSWORD=\"\$POSTGRES_PASSWORD\" pg_dump -U \"\$POSTGRES_USER\" -d \"\$POSTGRES_DB\" -Fc" \
+  > "${BACKUP_DIR}/${backup_file}"
+
+find "${BACKUP_DIR}" -type f -name 'postgres-*.dump' -mtime +"${RETENTION_DAYS}" -delete
+
+if [ -n "${SYNOLOGY_BACKUP_DIR}" ]; then
+  mkdir -p "${SYNOLOGY_BACKUP_DIR}"
+  cp "${BACKUP_DIR}/${backup_file}" "${SYNOLOGY_BACKUP_DIR}/${backup_file}"
+fi
+
+echo "Created backup: ${BACKUP_DIR}/${backup_file}"

deploy/backup/restore_postgres_backup.sh

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+#!/usr/bin/env sh
+set -eu
+
+if [ "$#" -lt 1 ]; then
+  echo "Usage: $0 <path-to-postgres-dump>"
+  exit 1
+fi
+
+dump_file="$1"
+COMPOSE_FILE="${COMPOSE_FILE:-docker-compose.production.yml}"
+ENV_FILE="${ENV_FILE:-.env.production}"
+
+if [ ! -f "${dump_file}" ]; then
+  echo "Backup file not found: ${dump_file}"
+  exit 1
+fi
+
+docker compose --env-file "${ENV_FILE}" -f "${COMPOSE_FILE}" exec -T postgres sh -lc \
+  "PGPASSWORD=\"\$POSTGRES_PASSWORD\" psql -U \"\$POSTGRES_USER\" -d postgres -c \"DROP DATABASE IF EXISTS \\\"\$POSTGRES_DB\\\";\""
+
+docker compose --env-file "${ENV_FILE}" -f "${COMPOSE_FILE}" exec -T postgres sh -lc \
+  "PGPASSWORD=\"\$POSTGRES_PASSWORD\" psql -U \"\$POSTGRES_USER\" -d postgres -c \"CREATE DATABASE \\\"\$POSTGRES_DB\\\";\""
+
+cat "${dump_file}" | docker compose --env-file "${ENV_FILE}" -f "${COMPOSE_FILE}" exec -T postgres sh -lc \
+  "PGPASSWORD=\"\$POSTGRES_PASSWORD\" pg_restore -U \"\$POSTGRES_USER\" -d \"\$POSTGRES_DB\" --clean --if-exists --no-owner --no-privileges"
+
+echo "Restore complete from: ${dump_file}"