This is an experimental project with Tekton and Nix.
The goal is to define a Pipeline to build and deploy a Go application.
Requirements
- A Kubernetes cluster
- Tekton Pipelines is already deployed
Getting Started
Deploy tasks
We first need to deploy some tasks
$ kubectl apply -f ci/task-build-docker-image.yaml
$ kubectl apply -f ci/task-check-deploy.yaml
We then need to add a task to update the digest resource. This is a workaround (see tektoncd/catalog#68 and tektoncd/pipeline#216)
$ kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/0b48da8e336a4214aff46af242658dc056199b1c/update-image-digests/image-digest-updater.yaml
$ kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/0b48da8e336a4214aff46af242658dc056199b1c/update-image-digests/update-image-digests.yaml
Deploy and run the pipeline
We can now create the pipeline:
$ kubectl apply -f ci/pipeline.yaml
To push to an authenticated registry, we need to expose a Docker
config.json file to n2k8s. See
https://github.com/nlewo/n2k8s#authentication for details.
$ kubectl create configmap docker-config --from-file=~/.docker/config.json
We can finally run the Pipeline:
$ kubectl apply -f ci/pipeline-run.yaml
Display logs
To display the logs of the Pipeline run with the Tekton CLI:
$ tkn pipelinerun logs hello-world-pipeline-run -f
At the end, we should be able to get a http respond from the web application:
$ curl $(kubectl get svc hello-world -o jsonpath="{.status.loadBalancer.ingress[*].hostname}")
hello world