.gitlab-ci.yml

stages:
  - test

services:
  - name: docker:20-dind
    # The cluster certificate only allows a handful of hostnames, this is one of them:
    alias: kubernetes

variables:
  DOCKER_HOST: tcp://docker:2375/

.test-template: &test-template
  stage: test
  script:
    # Create a Kubernetes cluster with KinD.
    - 'wget -qO get-docker.sh https://get.docker.com &'
    - 'wget -qO kubectl https://dl.k8s.io/release/v1.20.0/bin/linux/amd64/kubectl &'
    - 'wget -qO kind https://github.com/kubernetes-sigs/kind/releases/download/v0.10.0/kind-linux-amd64 &'
    - wait
    - sh get-docker.sh
    - chmod +x kubectl
    - chmod +x kind
    # The cluster is going to run in the DinD container - so make it bind to 0.0.0.0, cause we'll
    # be accessing it from the test container.
    - |
      echo '
      kind: Cluster
      apiVersion: kind.x-k8s.io/v1alpha4
      networking:
        apiServerAddress: "0.0.0.0"
      ' > kind_config.yaml
    - ./kind create cluster --config kind_config.yaml
    - ./kind get kubeconfig > kubeconfig
    # Patch the kubeconfig to reach the cluster from localhost.
    - sed -i -e 's/0.0.0.0/kubernetes/' kubeconfig
    - export KUBECONFIG=kubeconfig
    - docker ps

    # The cluster is now starting up but we'll wait for it later because meanwhile we can set up
    # the project.
    - pip install .[dev]
    - flake8
    - mypy .

    # Wait for the cluster:
    - while (./kubectl get nodes | grep NotReady); do echo "Waiting for nodes to be ready"; sleep 1; done;
    - while (./kubectl get pods -A | grep Pending); do echo "Waiting for pods to be ready"; sleep 1; done;
    - while (./kubectl get pods -A -o jsonpath='{range .items[*]}{.metadata.name} {.status.containerStatuses[*].ready}{"\n"}{end}' | grep 'false$'); do echo "Waiting for containers to be ready"; sleep 1; done;

    - py.test -vv -s --showlocals

test-3.6:
  image: python:3.6-buster
  <<: *test-template

test-3.7:
  image: python:3.7-buster
  <<: *test-template

test-3.8:
  image: python:3.8-buster
  <<: *test-template

test-3.9:
  image: python:3.9-buster
  <<: *test-template