Docker to Kubernetes

This workflow packages an application and previews its Kubernetes deployment.

Generate and validate the Dockerfile

codewise docker init
codewise docker validate

Review the generated file, especially its build command, exposed port, and runtime user.

Build the image

codewise docker build --tag ghcr.io/example/myapp:v1

Run the image locally before publishing it:

docker run --rm -p 8080:8080 ghcr.io/example/myapp:v1

Publish the image

docker login ghcr.io
codewise docker push --tag ghcr.io/example/myapp:v1

Generate and preview manifests

codewise k8s init --app myapp --image ghcr.io/example/myapp:v1
codewise k8s apply --namespace dev --dry-run

Apply to a test cluster

kubectl config current-context
codewise k8s apply --namespace dev

Clean up with codewise k8s delete --namespace dev when the test is complete.