Deploying with Kubernetes

Issue kubectl commands to your k8s cluster from your CloudBees CodeShip Pro build

The public repository for our codeship/kubectl Docker image can be found here.

1. Distill your current k8s configuration to a single file

With a configured k8s cluster context on your local machine, run the following command in your project directory:

kubectl config view --flatten > kubeconfigdata # add --minify flag to reduce info to current context

2. Copy contents of generated k8s config file to env var file

We have a Docker container built for taking the plaintext, flattened k8s config file and storing to a CodeShip Pro env file. The /root/.kube/config path specifies exactly where we want the contents of the kubeconfigdata securely placed in the codeship/kubectl container during runtime.

docker run --rm -it -v $(pwd):/files codeship/env-var-helper cp kubeconfigdata:/root/.kube/config k8s-env

Check out the codeship/env-var-helper README for more information.

3. Encrypt the env file, remove plaintext and/or add to .gitignore

jet encrypt k8s-env k8s-env.encrypted
rm kubeconfigdata k8s-env

4. Configure your services and steps file with the following as guidance

## codeship-services.yml

kubectl:
  image: codeship/kubectl
  encrypted_env_file: k8s-env.encrypted

## codeship-steps.yml

- name: check response to kubectl config
  service: kubectl
  command: kubectl config view
#- name: attempt to connect to live k8s cluster
#  service: kubectl
#  command: kubectl cluster-info

If you’re still largely unfamiliar with CloudBees CodeShip Pro, then check out our step-by-step walk-through on issuing kubectl commands in CloudBees CodeShip Pro.