.gitlab-ci.yml

image: golang:1.10.3-stretch

# The problem is that to be able to use go get, one needs to put
# the repository in the $GOPATH. So for example if your gitlab domain
# is mydomainperso.com, and that your repository is repos/projectname, and
# the default GOPATH being /go, then you'd need to have your
# repository in /go/src/mydomainperso.com/repos/projectname
# Thus, making a symbolic link corrects this.
before_script:
  - mkdir -p "/go/src/gitlab.zerbytes.net/${CI_PROJECT_NAMESPACE}"
  - ln -sf "${CI_PROJECT_DIR}" "/go/src/gitlab.zerbytes.net/${CI_PROJECT_PATH}"
  - cd "/go/src/gitlab.zerbytes.net/${CI_PROJECT_PATH}/"

stages:
  - test
  - build
  - release
  - review
  - deploy

test:
  stage: test
  script:
    - make test

test2:
  stage: test
  script:
    - sleep 3
    - echo "We did it! Something else runs in parallel!"

compile:
  stage: build
  script:
    # Add here all the dependencies, or use glide/govendor/...
    # to get them automatically.
    - make build
  artifacts:
    paths:
      - app

# Example job to upload the built release to a S3 server with mc
# For this you need to set `S3_ACCESS_KEY` and `S3_SECRET_KEY` in your GitLab project CI's secret variables
#release_upload:
#  stage: release
#  image: minio/mc
#  script:
#    - echo "=> We already have artifact sotrage in GitLab! This is for demonstational purposes only."
#    - mc config host add edenmalmoe https://s3.edenmal.net ${ACCESS_KEY} ${SECRET_KEY} S3v4
#    - mc mb -p edenmalmoe/build-release-${CI_PROJECT_NAME}/
#    - mc cp app edenmalmoe/build-release-${CI_PROJECT_NAME}/


image_build:
  stage: release
  image: docker:latest
  variables:
    DOCKER_HOST: tcp://localhost:2375
  services:
    - docker:dind
  script:
    - docker info
    - docker login -u "${CI_REGISTRY_USER}" -p "${CI_REGISTRY_PASSWORD}" "${CI_REGISTRY}"
    - docker build -t "${CI_REGISTRY_IMAGE}:latest" .
    - docker tag "${CI_REGISTRY_IMAGE}:latest" "${CI_REGISTRY_IMAGE}:${CI_COMMIT_REF_NAME}"
    - test ! -z "${CI_COMMIT_TAG}" && docker push "${CI_REGISTRY_IMAGE}:latest"
    - docker push "${CI_REGISTRY_IMAGE}:${CI_COMMIT_REF_NAME}"

deploy_review:
  image: lachlanevenson/k8s-kubectl:latest
  stage: review
  only:
    - branches
  except:
    - tags
  environment:
    name: review/$CI_BUILD_REF_NAME
    url: https://$CI_ENVIRONMENT_SLUG-presentation-gitlab-k8s.edenmal.net
    on_stop: stop_review
  script:
    - kubectl version
    - cd manifests/
    - sed -i "s/__CI_ENVIRONMENT_SLUG__/${CI_ENVIRONMENT_SLUG}/" deployment.yaml ingress.yaml service.yaml
    - sed -i "s/__VERSION__/${CI_COMMIT_REF_NAME}/" deployment.yaml ingress.yaml service.yaml
    - |
      if kubectl apply -f deployment.yaml | grep -q unchanged; then
          echo "=> Patching deployment to force image update."
          kubectl patch -f deployment.yaml -p "{\"spec\":{\"template\":{\"metadata\":{\"annotations\":{\"ci-last-updated\":\"$(date +'%s')\"}}}}}"
      else
          echo "=> Deployment apply has changed the object, no need to force image update."
      fi
    - kubectl apply -f service.yaml || true
    - kubectl apply -f ingress.yaml
    - kubectl rollout status -f deployment.yaml
    - kubectl get all,ing -l ref=${CI_ENVIRONMENT_SLUG}

stop_review:
  image: lachlanevenson/k8s-kubectl:latest
  stage: review
  variables:
    GIT_STRATEGY: none
  when: manual
  only:
    - branches
  except:
    - master
    - tags
  environment:
    name: review/$CI_BUILD_REF_NAME
    action: stop
  script:
    - kubectl version
    - kubectl delete ing -l ref=${CI_ENVIRONMENT_SLUG}
    - kubectl delete all -l ref=${CI_ENVIRONMENT_SLUG}

deploy_live:
  image: lachlanevenson/k8s-kubectl:latest
  stage: deploy
  environment:
    name: live
    url: https://live-presentation-gitlab-k8s.edenmal.net
  only:
    - tags
  when: manual
  script:
    - kubectl version
    - cd manifests/
    - sed -i "s/__CI_ENVIRONMENT_SLUG__/${CI_ENVIRONMENT_SLUG}/" deployment.yaml ingress.yaml service.yaml
    - sed -i "s/__VERSION__/${CI_COMMIT_REF_NAME}/" deployment.yaml ingress.yaml service.yaml
    - kubectl apply -f deployment.yaml
    - kubectl apply -f service.yaml
    - kubectl apply -f ingress.yaml
    - kubectl rollout status -f deployment.yaml
    - kubectl get all,ing -l ref=${CI_ENVIRONMENT_SLUG}