image: golang:1.10.2-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:
    - go get -u github.com/kardianos/govendor
    - /go/bin/govendor test +local

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

compile:
  stage: build
  variables:
    VERSION: "1.0.18"
  script:
    # Add here all the dependencies, or use glide/govendor/...
    # to get them automatically.
    # TODO Better put this in a Makefile soon
    - go build -race -ldflags "-X gitlab.zerbytes.net/${CI_PROJECT_PATH}/vendor/github.com/prometheus/common/version.Version=$VERSION -X gitlab.zerbytes.net/${CI_PROJECT_PATH}/vendor/github.com/prometheus/common/version.Revision=${CI_COMMIT_SHA} -X gitlab.zerbytes.net/${CI_PROJECT_PATH}/vendor/github.com/prometheus/common/version.Branch=${CI_COMMIT_REF_NAME} -X gitlab.zerbytes.net/${CI_PROJECT_PATH}/vendor/github.com/prometheus/common/version.BuildUser=$(whoami)@$(hostname) -X gitlab.zerbytes.net/${CI_PROJECT_PATH}/vendor/github.com/prometheus/common/version.BuildDate=$(date +%Y%m%d-%H:%M:%S) -extldflags '-static'" -o app
  artifacts:
    paths:
      - app

# Example job to upload the built release to a S3 server with mc
#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 gitlab-ci-token -p ${CI_JOB_TOKEN} registry.zerbytes.net
    - docker build -t registry.zerbytes.net/${CI_PROJECT_PATH}:latest .
    - docker tag registry.zerbytes.net/${CI_PROJECT_PATH}:latest registry.zerbytes.net/${CI_PROJECT_PATH}:${CI_COMMIT_REF_NAME}
    - test ! -z "${CI_COMMIT_TAG}" && docker push registry.zerbytes.net/${CI_PROJECT_PATH}:latest
    - docker push registry.zerbytes.net/${CI_PROJECT_PATH}:${CI_COMMIT_REF_NAME}

deploy_review:
  image: lachlanevenson/k8s-kubectl:latest
  stage: review
  only:
    - branches
    - tags
  except:
    - master
  environment:
    name: review/$CI_BUILD_REF_NAME
    url: https://$CI_BUILD_REF_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)" == *"unchanged"* ]]; then kubectl patch deployment ${CI_ENVIRONMENT_SLUG} -p "{\"spec\":{\"template\":{\"metadata\":{\"annotations\":{\"ci-last-updated\":\"$(date +'%s')\"}}}}}"; fi
    - kubectl apply -f service.yaml || true
    - kubectl apply -f ingress.yaml
    - kubectl get all,ing -l app=${CI_ENVIRONMENT_SLUG}

stop_review:
  image: lachlanevenson/k8s-kubectl:latest
  stage: review
  variables:
    GIT_STRATEGY: none
  when: manual
  environment:
    name: review/$CI_BUILD_REF_NAME
    action: stop
  script:
    - kubectl version
    - cd manifests/
    - sed -i "s/__CI_ENVIRONMENT_SLUG__/${CI_ENVIRONMENT_SLUG}/" deployment.yaml ingress.yaml service.yaml
    - sed -i "s/__VERSION__/${CI_COMMIT_REF_NAME}/" deployment.yaml ingress.yaml service.yaml
    - kubectl get deployments -l app=${CI_ENVIRONMENT_SLUG}
    - kubectl delete -l app=${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 || true
    - kubectl apply -f ingress.yaml
    - kubectl get all,ing -l app=${CI_ENVIRONMENT_SLUG}