Backup docker volumes

[dgloukhman]

Is it possible to backup docker volumes to the s3 bucket? I don't see where that option is.
If not how would I access the S3 storage from a scheduled task?

[Procuria]

@dgloukhman I'm not aware of an option in Coolify to do that.

My solution for that is

1. Set up a Duplicati on every server you added to Coolify
2. mount the /var/lib/docker/volumes (or whereve you have your docker_root directory ) into the Duplicati container

volumes:
      - '/var/lib/docker/volumes:/source:ro'

3. configure S3-Provider in Duplicati

4. Backup

[MasterPuffin]

@Procuria
I got the error that duplicati could not access the files inside the source folder.
Going into the docker compose file and setting

      - PUID=0
      - PGID=0

did the trick

[endquote]

I tried duplicati but really struggled to get it to stop containers before backups. docker-volume-backup seems like a good option. Here's an example backup up umami's postgresql volume. The compose is from the default recipe, with one service added, and a label added to postgresql to indicate that it should be stopped.

services:
  umami:
    image: 'ghcr.io/umami-software/umami:postgresql-latest'
    environment:
      - SERVICE_FQDN_UMAMI
      - 'DATABASE_URL=postgres://$SERVICE_USER_POSTGRES:$SERVICE_PASSWORD_POSTGRES@postgresql:5432/$POSTGRES_DB'
      - DATABASE_TYPE=postgres
      - APP_SECRET=$SERVICE_PASSWORD_64_UMAMI
    depends_on:
      postgresql:
        condition: service_healthy
  postgresql:
    image: 'postgres:15-alpine'
    volumes:
      - 'postgresql-data:/var/lib/postgresql/data'
    environment:
      - POSTGRES_USER=$SERVICE_USER_POSTGRES
      - POSTGRES_PASSWORD=$SERVICE_PASSWORD_POSTGRES
      - 'POSTGRES_DB=${POSTGRES_DB:-umami}'
    healthcheck:
      test:
        - CMD-SHELL
        - 'pg_isready -U $${POSTGRES_USER} -d $${POSTGRES_DB}'
      interval: 5s
      timeout: 5s
      retries: 10
    labels:
      - docker-volume-backup.stop-during-backup=true
  postgresql-backup:
    image: offen/docker-volume-backup:latest
    restart: always
    environment:
      - AWS_S3_PATH=$BACKUP_AWS_S3_PATH
      - AWS_S3_BUCKET_NAME=$BACKUP_AWS_S3_BUCKET_NAME
      - AWS_ENDPOINT=$BACKUP_AWS_ENDPOINT
      - AWS_ACCESS_KEY_ID=$BACKUP_AWS_ACCESS_KEY_ID
      - AWS_SECRET_ACCESS_KEY=$BACKUP_AWS_SECRET_ACCESS_KEY
    volumes:
      - postgresql-data:/backup/postgresql-data:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro