.drone.yml

---

kind: pipeline
type: docker
name: main

platform:
  os: linux
  arch: amd64

steps:

  - name: test
    image: bitnami/kubectl:1.22.2
    user: root # the bitnami/kubectl image has a non-root user set by default, which does not work with the shared docker volume which is owned by root
    commands:
      - export KUBECONFIG=kubeconfig-$${DRONE_BUILD_STARTED}.yaml
      - until test -f $${KUBECONFIG}; do sleep 1s; done # wait for k3d service to write the kubeconfig to the workspace
      - kubectl config view
      - kubectl get pods --all-namespaces
      - kubectl create namespace ci # create new namespace for test deployments
      - kubectl -n ci run test-pod --image alpine -- tail -f /dev/null # create dummy pod that just hangs around
      - until kubectl -n ci get pod test-pod -o go-template='{{.status.phase}}' | grep 'Running'; do sleep 1s; done # wait for pod to be running
      - kubectl -n ci get pods
      - kubectl -n ci exec test-pod -- echo "Hello World!" # do something inside that pod -> here you could exec tests
      - printf "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n@@@@@@@@@@ The End @@@@@@@@@@\n@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n"
      - echo "You can also run some integration tests, etc. by hitting API endpoints or something like that.."
      - echo "For example, combine this with Helm post-install hooks that wait for testing jobs to finish before marking a release as success."

services:
  - name: k3dsvc
    image: rancher/k3d:5.0.0-rc.4-dind
    privileged: true    
    commands:
      - nohup dockerd-entrypoint.sh & # start docker in the background
      - until docker ps 2>&1 > /dev/null; do sleep 1s; done # wait for docker to be ready before proceeding
      - k3d cluster create --config ci/k3d-drone.yaml --api-port k3dsvc:6445 # create k3d cluster from config file
      - until kubectl get deployment coredns -n kube-system -o go-template='{{.status.availableReplicas}}' | grep -v -e '<no value>'; do sleep 1s; done # wait for coredns to be up and running
      - k3d kubeconfig get drone > kubeconfig-$${DRONE_BUILD_STARTED}.yaml
      - printf "@@@@@@@@@@@@@@@@@@@@@@@\n@@@@ k3d is ready! @@@@\n@@@@@@@@@@@@@@@@@@@@@@@\n"
      - tail -f /dev/null # chill around while the steps do their work