PostgreSQL backups

The postgres strategy runs:

docker exec <container> sh -c 'pg_dump -U "$POSTGRES_USER" -d "$POSTGRES_DB"'

and gzip-compresses the output. The user and database are read from the container’s env at dump time, so the strategy works with the stock postgres image (which would otherwise dump the empty default postgres database). Override via opts.Credentials["POSTGRES_USER"]. Restore pipes the gzipped dump into psql using the same user/db resolution.

Filename format: {containerName}-{YYYYMMDD-HHMMSS}.sql.gz

Configure via compose labels

services:
  db:
    image: postgres:16
    environment:
      POSTGRES_DB: myapp
      POSTGRES_PASSWORD: secret
    labels:
      simpledeploy.backup.strategy: "postgres"
      simpledeploy.backup.schedule: "0 2 * * *"
      simpledeploy.backup.target: "local"
      simpledeploy.backup.retention: "7"

Or configure via the UI Backup wizard.