.gitlab-ci.yml

stages:
  - version
  - build
  - release
  - push
  - deploy

variables:
  DOCKER_DRIVER: overlay2
  DOCKER_TLS_CERTDIR: ""
  DOCKER_REGISTRY: docker.io
  CI_REGISTRY_IMAGE: index.docker.io/derfabianpeter/www.peter.saarland
  HUGO_VERSION: "0.60.1"

.deployment: &deployment |
  # Setup SSH deploy keys
  which ssh-agent || ( apk add --no-cache openssh-client )
  eval $(ssh-agent -s)
  ##
  ## Add the SSH key stored in SSH_PRIVATE_KEY variable to the agent store
  ## We're using tr to fix line endings which makes ed25519 keys work
  ## without extra base64 encoding.
  ## https://gitlab.com/gitlab-examples/ssh-private-key/issues/1#note_48526556
  ##
  echo "${SSH_PRIVATE_KEY}" | tr -d '\r' | ssh-add - > /dev/null 2>&1
  mkdir -p ~/.ssh
  chmod 700 ~/.ssh
  echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config 
  ssh-keyscan -H ${DEPLOYMENT_TARGET} >> ~/.ssh/known_hosts
  

version:
  stage: version
  image: registry.gitlab.com/juhani/go-semrel-gitlab:v0.21.1
  variables:
    GSG_INITIAL_DEVELOPMENT: "false"
  script:
    - release test-git || true
    - release test-api
    - release next-version --allow-current
    - release next-version --allow-current > .next-version
    - echo "RELEASE_URL=https://gitlab.com/derfabianpeter/www.peter.saarland/-/releases/v$(<.next-version)" > build_info
    - echo "RELEASE_DESC=\"Fabian Peter | DevOps Consultant\"" >> build_info
    - echo "RELEASE_SHA=$CI_COMMIT_SHA" >> build_info
    - echo "RELEASE_VERSION=$(<.next-version)" >> build_info
  artifacts:
    paths:
    - build_info
    - .next-version
  except:
    - tags


Build:
  stage: build
  image: docker:19.03.5-git 
  services:
    - docker:19.03.5-dind
  # fetching submodules here because usually themes are git submodules
  before_script:
    - echo -n $DOCKERHUB_PASSWORD | docker login -u $DOCKERHUB_USER --password-stdin $DOCKER_REGISTRY
    - wget -O hugo.tar.gz https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_${HUGO_VERSION}_Linux-64bit.tar.gz
    - tar -zxvf hugo.tar.gz
    - ./hugo
    - ./hugo version
    #- apk add curl
    #- ls -lah */*
    #- "curl --request POST --url https://gotenberg.devops-projects.de/convert/html --header 'Content-Type: multipart/form-data' --form files=@public/about/index.html -o public/cv.pdf"
  script:
    - . build_info
    - docker pull $CI_REGISTRY_IMAGE:latest || true
    - docker build --cache-from $CI_REGISTRY_IMAGE:latest --build-arg BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') -t $CI_REGISTRY_IMAGE:v$RELEASE_VERSION .
    - docker push $CI_REGISTRY_IMAGE:v$RELEASE_VERSION
  artifacts:
    paths:
    - public

# Release new Version
Release:
  stage: release
  image: registry.gitlab.com/juhani/go-semrel-gitlab:v0.21.1
  variables:
    GSG_INITIAL_DEVELOPMENT: "false"
  script:
    - rm -f release_info
    - mv build_info release_info
    - . release_info
    - release changelog
    - release commit-and-tag CHANGELOG.md release_info
    - release --ci-commit-tag v$RELEASE_VERSION add-download-link -n release -u $RELEASE_URL -d "$RELEASE_DESC"
  only:
    - master
  artifacts:
    paths:
    - release_info

Push Dockerhub:
  stage: push
  image: docker:19.03.5-git
  services:
    - docker:19.03.5-dind
  variables:
    GIT_STRATEGY: none
  before_script:
    - echo -n $DOCKERHUB_PASSWORD | docker login -u $DOCKERHUB_USER --password-stdin $DOCKER_REGISTRY
  script:
    - . release_info
    - docker pull $CI_REGISTRY_IMAGE:v$RELEASE_VERSION || true
    - docker tag $CI_REGISTRY_IMAGE:v$RELEASE_VERSION $CI_REGISTRY_IMAGE:latest
    - docker push $CI_REGISTRY_IMAGE:latest
  only:
    - master
  

Deploy:
  stage: deploy
  image: tiangolo/docker-with-compose
  script: 
    - *deployment
    - DOCKER_HOST=ssh://${DEPLOYMENT_TARGET} docker-compose -f ci/docker-compose.yml rm -f
    - DOCKER_HOST=ssh://${DEPLOYMENT_TARGET} docker-compose -f ci/docker-compose.yml pull
    - DOCKER_HOST=ssh://${DEPLOYMENT_TARGET} docker-compose -f ci/docker-compose.yml -p peter-www up --remove-orphans -d
  allow_failure: false
  only:
    - master
  environment:
    name: production
    url: https://www.peter.saarland