Buildkite Ruby Docker Example

This repository is an example on how to test a Ruby project using Buildkite, Kubernetes Agent Stack, and Docker. It uses the standard Ruby Docker image and the Buildkite Kubernetes Agent Stack.

Setup

Buildkit Daemon

This pipeline requires two dependencies to replicate the build on the Kubernetes agent stack. First, the buildkitd daemon was configured using the instructions for the Deployment and Service found in the buildkit repository.

./create-certs.sh 127.0.0.1 buildkitd.default.svc buildkitd.default buildkitd.default.svc.cluster.local
kubectl apply -f .certs/buildkit-daemon-certs.yaml
kubectl apply -f deployment+service.rootless.yaml

The previous instructions also create buildkit client certs Kubernetes secret which need to be used to configure the remote builder. Load that secret into the buildkite agent stack namespace with the following command:

kubectl apply -n buildkite -f .certs/buildkite-client-certs.yaml

GHCR Auth

Then, set up authentication to GHCR using a github personal access token. create a token with access to packages:read and packages:write.

Base64 encode your github username and token:

echo -n "$GITHUB_USERNAME:$GITHUB_TOKEN" | base64

Take that result and build a Docker config.json file:

{
    "auths":
    {
        "ghcr.io":
            {
                "auth":"$BASE64_ENCODED_AUTH"
            }
    }
}

Then, use this file to create a secret:

kubectl create secret -n buildkite generic dockerconfigjson --from-file=config.json 

License

See Licence.md (MIT)