Alga PSA Installation Error: Image Not Found

Encountering the dreaded workflow-worker Error failed to resolve reference "ghcr.io/nine-minds/alga-psa-ce:27ca7a3fa": ghcr.io/nine-minds/alga-psa-ce:27ca7a3fa: not found during your Alga PSA installation can be a real head-scratcher. You're trying to get your system up and running, likely with a specific version or tag, and Docker (or your container orchestration tool) is telling you it can't find the image it needs. This is a common hiccup, and often it boils down to a few key issues that are relatively straightforward to fix once you know where to look. This article will guide you through the common causes of this error and provide practical steps to get your Alga PSA installation back on track. We'll delve into the specifics of image referencing, common pitfalls with tags, and how to ensure your environment is correctly configured to pull the necessary components for Alga PSA.

Understanding the "Image Not Found" Error

Let's first break down what this error message, specifically the workflow-worker Error failed to resolve reference "ghcr.io/nine-minds/alga-psa-ce:27ca7a3fa": not found, actually means. When you use docker compose up or a similar command, Docker reads your docker-compose.yaml files to understand how to build and run your services. Each service, like workflow-worker in this case, is defined with an image attribute. This attribute tells Docker exactly which container image to pull from a registry (like Docker Hub, GitHub Container Registry - GHCR, or a private registry) and which specific version or tag of that image to use. The string ghcr.io/nine-minds/alga-psa-ce:27ca7a3fa is that precise reference. It specifies the registry (ghcr.io), the repository (nine-minds/alga-psa-ce), and the tag (27ca7a3fa). The not found part is Docker's way of saying, "I looked where you told me to look, but I couldn't find the exact image you requested." This can happen for several reasons, including typos, incorrect tags, the image not existing in the specified registry, or network issues preventing access. It's crucial to understand that each part of this image reference matters, and a small mistake in any segment can lead to this frustrating error.

Common Culprits: Tags and References

The most frequent cause of the "image not found" error is an incorrect or non-existent image tag. In your case, 27ca7a3fa is a specific commit SHA tag, which is great for ensuring reproducibility. However, it's possible that this specific tag is no longer available in the ghcr.io/nine-minds/alga-psa-ce repository, or perhaps it was never pushed there correctly. You mentioned trying latest and stable as tags; while these are common, the Alga PSA project might use different tag conventions. It's essential to consult the official Alga PSA documentation or the repository's README file to identify the correct and available tags. Sometimes, a tag might exist but requires specific authentication to pull, especially if it's in a private repository (though ghcr.io is often used for public images). Always double-check the tag against the source. A simple typo in the tag, or an attempt to use a tag that has been deprecated or removed, will result in this error. Furthermore, ensure that the registry part (ghcr.io) and the repository path (nine-minds/alga-psa-ce) are also correct. A mistyped registry name or an incorrect organization/project name will also lead to the image not being found.

Verifying Image Existence and Availability

Before diving deeper into your Docker setup, it's a good practice to manually verify if the image and tag you're trying to use actually exist. You can do this by visiting the container registry website. In this instance, you would navigate to the GitHub Container Registry page for Alga PSA. You can search for ghcr.io/nine-minds/alga-psa-ce on GitHub or directly on the GHCR interface if available. Look for the specific tag 27ca7a3fa or any other tags that the documentation suggests. If you can't find the image or the tag on the registry, then the problem lies with the image itself not being published correctly. If the image and tag do exist, the next step is to check your Docker environment's ability to access it. Ensure you are logged into the correct Docker registry if it's a private repository, although ghcr.io is typically public. You can try pulling the image manually using docker pull ghcr.io/nine-minds/alga-psa-ce:27ca7a3fa in your terminal. If this command also fails with a "not found" error, it confirms that the issue is with the image reference itself, not necessarily your docker compose setup. If the manual pull succeeds, then the problem might be related to how Docker Compose is configured or how it interacts with your Docker daemon.

Environment Variables and Configuration Warnings

Your provided logs show a lot of warnings: `WARN[0000] The