.gitlab-ci.yml

workflow:
  rules:
    # NOTE: don't run pipeline if commit is a Merge/Pull-Request
    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
      when: 'never'
    # Otherwise:
    - when: 'always'

variables:
  version: '0.0.$CI_PIPELINE_IID'
  k8sVersion: '1.20.5'

stages:
  - build
  - test
  - deploy
  - release


job_build-image:
  stage: build
  tags:
    - docker-privileged
  image: docker:20.10.12
  services:
    - name: docker:20.10.12-dind
  script:
    - docker-compose build
        --file "server/Containerfile"
        --tag "${CI_REGISTRY_IMAGE}:${CI_PIPELINE_IID}-${CI_COMMIT_SHORT_SHA}"
        "./"
    # NOTE: push image to local registry so that it can be accessed in subsequent jobs
    - docker login -u ${CI_REGISTRY_USER} -p ${CI_REGISTRY_PASSWORD} ${CI_REGISTRY}
    - docker push "${CI_REGISTRY_IMAGE}:${CI_PIPELINE_IID}-${CI_COMMIT_SHORT_SHA}"
  after_script:
    - docker image rm --force "${CI_REGISTRY_IMAGE}:${CI_PIPELINE_IID}-${CI_COMMIT_SHORT_SHA}"

job_test-image:
  stage: test
  tags:
    - docker-privileged
  image: docker:20.10.12
  services:
    - name: docker:20.10.12-dind
      alias: containerhost
  variables:
    # NOTE: some random port that hopefully is free on the runner
    outerPort: '38080'
  before_script:
    - docker login -u ${CI_REGISTRY_USER} -p ${CI_REGISTRY_PASSWORD} ${CI_REGISTRY}
    - docker pull "${CI_REGISTRY_IMAGE}:${CI_PIPELINE_IID}-${CI_COMMIT_SHORT_SHA}"
  script:
    - docker run
        --detach
        --publish "${outerPort}:8080"
        --name "${CI_PROJECT_ID}-${CI_PIPELINE_IID}"
        "${CI_REGISTRY_IMAGE}:${CI_PIPELINE_IID}-${CI_COMMIT_SHORT_SHA}"
    - |
      attempts=1
      while (wget "http://containerhost:${outerPort}" 2>&1 || true) | grep 'Connection refused' && [ "${attempts}" -lt 5 ]; do
        sleep 1 && echo sleeping
        attempts=$((attempts + 1))
      done
    - (wget --no-cache --quiet --output-document - "http://containerhost:${outerPort}/health" | docker run --rm --interactive stedolan/jq -e '.status == "pass"')
        || (echo 'Test failed' && exit 1)
  after_script:
    # NOTE: clean up after test run (stop and remove container)
    - docker rm --force "${CI_PROJECT_ID}-${CI_PIPELINE_IID}"