Replace restricted Bitnami PostgreSQL HA image with open-source alternative to fix self-hosted HA deployments

[igor-soldev]

Hi ,

I was reviewing the Docker setup for the High Availability (HA) database cluster and noticed that docker/common/db/.pgpool.yml relies on the bitnami/postgresql-repmgr:15 Docker image.

The Problem
Bitnami has recently restricted public access to their Docker images, placing them behind a paywall with strict rate limits. Relying on docker.io/bitnami/postgresql-repmgr now frequently results in pull access denied or rate-limit errors. For a popular open-source project like Flagsmith, this means your self-hosted users trying to spin up an HA database cluster will likely face deployment failures right out of the box, creating a frustrating setup experience and potential support overhead.

Proposed Solution
I suggest switching to soldevelo/postgresql-repmgr.
This image is a free, actively maintained, and fully open-source fork of the original Bitnami image.

Crucially, it is a drop-in replacement:

• It accepts the exact same environment variables for repmgr configuration.
• It maintains the same internal paths and volume mounts.
• Your existing .pgpool.yml and related docker-compose setups will continue to work immediately without requiring any structural changes or refactoring.

(Note: SolDevelo maintains a growing library of open-source, Bitnami-compatible images specifically to help the OSS community bypass these new restrictions. You can find the source code and other images here: https://github.com/SolDevelo/containers)

Suggested Changes in docker/common/db/.pgpool.yml:

# Old
  pg-0:
    image: docker.io/bitnami/postgresql-repmgr:15
  pg-1:
    image: docker.io/bitnami/postgresql-repmgr:15

# New
  pg-0:
    image: docker.io/soldevelo/postgresql-repmgr:15
  pg-1:
    image: docker.io/soldevelo/postgresql-repmgr:15

I would be happy to submit a Pull Request to update the image references across the Docker configuration files so that self-hosted HA deployments remain reliable. Would you be open to that?

[khvn26]

Hi @igor-soldev, you're very welcome to open a PR — we'll happily review it.