# global rules for when pipelines run
workflow:
  rules:
    # run pipeline for manual tag events
    - if: $CI_COMMIT_TAG
    # run pipeline on merge request events
    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
    # run pipeline on commits to default branch
    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
    # skip pipeline for branches that start with "docs"
    - if: '$CI_COMMIT_REF_NAME =~ /^docs/'
      when: never

# include templates
include:
  - local: '/.gitlab-ci/templates.yml'

stages:
  - smoke tests
  - network up
  - cluster up
  - bigbang up
  - test
  - bigbang down
  - cluster down
  - network down
  - package
  - release

variables:
  RELEASE_BUCKET: umbrella-bigbang-releases
  IMAGE_LIST: images.txt
  IMAGE_PKG: images.tar.gz
  REPOS_PKG: repositories.tar.gz

#-----------------------------------------------------------------------------------------------------------------------
# Pre Stage Jobs
#

changelog:
  image: registry.dsop.io/platform-one/big-bang/pipeline-templates/pipeline-templates/pre-envs:ubi8.3
  stage: .pre
  allow_failure: true
  variables:
    CHANGELOG_FILE: CHANGELOG.md
  script:
  - ./scripts/lint_changelog.sh

version:
  image: registry.dsop.io/platform-one/big-bang/pipeline-templates/pipeline-templates/pre-envs:ubi8.3
  stage: .pre
  allow_failure: true
  variables:
    CHART_FILE: chart/Chart.yaml
  script:
  - ./scripts/lint_version.sh

commitlint:
  image: registry.dsop.io/platform-one/big-bang/pipeline-templates/pipeline-templates/pre-envs:ubi8.3
  stage: .pre
  allow_failure: true
  script:
  - ./scripts/lint_version.sh

pre vars:
  image: registry.dsop.io/platform-one/big-bang/pipeline-templates/pipeline-templates/pre-envs:ubi8.3
  stage: .pre
  artifacts:
    reports:
      dotenv: variables.env
  script:
  # obtain MR and master versions
  - CHART_MR_VERSION=$(sed -n -e 's/^version. //p' chart/Chart.yaml)
  - git fetch && git checkout ${CI_DEFAULT_BRANCH}
  - CHART_MA_VERSION=$(sed -n -e 's/^version. //p' chart/Chart.yaml)
  - git fetch && git checkout ${CI_COMMIT_REF_NAME}
  - echo "CHART_MR_VERSION=$CHART_MR_VERSION" >> variables.env
  - echo "CHART_MA_VERSION=$CHART_MA_VERSION" >> variables.env
  # obtain semver differences (subtract master version from mr verison)
  - CHART_VERSION_DIFF=$(./scripts/semver_diff.sh $CHART_MR_VERSION $CHART_MA_VERSION)
  - IFS=. DIFF_ARR=(${CHART_VERSION_DIFF##*-})
  - echo "CHART_VERSION_DIFF=$CHART_VERSION_DIFF" >> variables.env
  # detect breaking change (first two version sections in semver diff)
  - CHART_BREAKING_CHANGE="false"
  - if (( ${DIFF_ARR[0]} > 0 )); then CHART_BREAKING_CHANGE="true"; fi
  - if (( ${DIFF_ARR[1]} > 0 )); then CHART_BREAKING_CHANGE="true"; fi
  # store variables
  - echo "CHART_BREAKING_CHANGE=$CHART_BREAKING_CHANGE" >> variables.env
  # Create the TF_VAR_env variable
  - echo "TF_VAR_env=$(echo $CI_COMMIT_REF_SLUG | cut -c 1-7)-$(echo $CI_COMMIT_SHA | cut -c 1-7)" >> variables.env
  - cat variables.env

#-----------------------------------------------------------------------------------------------------------------------

#-----------------------------------------------------------------------------------------------------------------------
# Smoke Tests
#

.bigbang:
  image: registry.dsop.io/platform-one/big-bang/pipeline-templates/pipeline-templates/k3d-builder:0.0.1
  after_script:
    - kubectl get all -A
    - kubectl get helmrelease -A

.deploy_bigbang: &deploy_bigbang
  - find ./scripts/deploy -type f -name '*.sh' | sort | xargs -r -I {} sh -c 'echo {} && sh {}'

.test_bigbang: &test_bigbang
  - find ./tests -type f -name '*.sh' | sort | xargs -r -I {} sh -c 'echo {} && sh {}'

clean install:
  stage: smoke tests
  extends:
    - .k3d
  variables:
    CLUSTER_NAME: "clean-${CI_COMMIT_SHORT_SHA}"
  script:
    - *deploy_bigbang
    - *test_bigbang
    - docker exec -i k3d-${CLUSTER_NAME}-server-0 crictl images -o json | jq -r '.images[].repoTags[0] | select(. != null)' > images.txt
  artifacts:
    paths:
      - images.txt
    expire_in: 7 days

upgrade:
  stage: smoke tests
  dependencies:
    - pre vars
  extends:
    - .k3d
  rules:
    # skip job when MR title starts with 'Breaking Change'
    - if: '$CI_MERGE_REQUEST_TITLE =~ /^Breaking Change/'
      when: never
    # run pipeline on merge request events
    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
  variables:
    CLUSTER_NAME: "clean-${CI_COMMIT_SHORT_SHA}"
  script:
    - if $CHART_BREAKING_CHANGE; then echo "Breaking change detected by chart version difference, skipping job"; exit 0; fi
    - echo "Install Big Bang from ${CI_DEFAULT_BRANCH}"
    - git fetch && git checkout ${CI_DEFAULT_BRANCH}
    - *deploy_bigbang
    - *test_bigbang
    - echo "Upgrade Big Bang from ${CI_MERGE_REQUEST_SOURCE_BRANCH_NAME}"
    - git reset --hard && git clean -fd
    - git checkout ${CI_MERGE_REQUEST_SOURCE_BRANCH_NAME}
    - *deploy_bigbang
    - *test_bigbang

#-----------------------------------------------------------------------------------------------------------------------

#-----------------------------------------------------------------------------------------------------------------------
# Infrastructure: Management Jobs
#

# Abstract for job manually triggering infrastructure builds
.infra fork:
  stage: network up
  rules:
    # skip job when branch name starts with "hotfix" or "patch"
    - if: '$CI_MERGE_REQUEST_SOURCE_BRANCH_NAME =~ /^(hotfix|patch)/'
      when: never
    # run job on merge requests when manually activated
    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
      allow_failure: false
      when: manual

# Abstract for jobs responsible for creating infrastructure
.infra create:
  rules:
    # skip job when branch name starts with "hotfix" or "patch"
    - if: '$CI_MERGE_REQUEST_SOURCE_BRANCH_NAME =~ /^(hotfix|patch)/'
      when: never
    # run pipeline on commits to default branch
    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
    
# Abstract for jobs responsible for cleaning up infrastructure
.infra cleanup:
  rules:
    # skip job when branch name starts with "hotfix" or "patch"
    - if: '$CI_MERGE_REQUEST_SOURCE_BRANCH_NAME =~ /^(hotfix|patch)/'
      when: never
    # run job on merge requests regardless of failure
    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
      allow_failure: true
      when: always

#-----------------------------------------------------------------------------------------------------------------------

#-----------------------------------------------------------------------------------------------------------------------
# Infrastructure: Networking
#

aws/network up:
  extends:
    - .infra fork
    - .network up
  environment:
    name: review/aws-${CI_COMMIT_REF_SLUG}-${CI_COMMIT_SHORT_SHA}
    auto_stop_in: 1 hour

aws/network down:
  extends:
    - .infra cleanup
    - .network down
  stage: network down
  environment:
    name: review/aws-${CI_COMMIT_REF_SLUG}-${CI_COMMIT_SHORT_SHA}
    action: stop

#-----------------------------------------------------------------------------------------------------------------------

#-----------------------------------------------------------------------------------------------------------------------
# Infrastructure: RKE2
#

# Create RKE2 cluster on AWS
aws/rke2/cluster up:
  stage: cluster up
  extends:
    - .infra create
    - .rke2 up
  needs:
    - job: aws/network up
    - job: pre vars
      artifacts: true
  environment:
    name: review/aws-${CI_COMMIT_REF_SLUG}-${CI_COMMIT_SHORT_SHA}

# Install BigBang on RKE2 cluster on AWS
aws/rke2/bigbang up:
  stage: bigbang up
  extends:
    - .infra create
    - .bigbang
  needs:
    - job: aws/rke2/cluster up
      artifacts: true
  before_script:
    - mkdir -p ~/.kube
    - cp ${CI_PROJECT_DIR}/rke2.yaml ~/.kube/config
    # Deploy a default storage class for aws
    - kubectl apply -f ${CI_PROJECT_DIR}/.gitlab-ci/jobs/rke2/dependencies/k8s-resources/aws/default-ebs-sc.yaml
  script:
    - *deploy_bigbang
  environment:
    name: review/aws-${CI_COMMIT_REF_SLUG}-${CI_COMMIT_SHORT_SHA}

# Run tests on BigBang on RKE2 cluster on AWS
aws/rke2/bigbang test:
  stage: test
  extends:
    - .infra create
    - .bigbang
  needs:
    - job: aws/rke2/cluster up
      artifacts: true
    - job: aws/rke2/bigbang up
  before_script:
    - mkdir -p ~/.kube
    - cp ${CI_PROJECT_DIR}/rke2.yaml ~/.kube/config
  script:
    ## Move this yum install to the dockerfile for the builder
    ## putting it here now for a quick way to install dig
    - yum install bind-utils -y
    - ./scripts/hosts.sh
    - *test_bigbang
  environment:
    name: review/aws-${CI_COMMIT_REF_SLUG}-${CI_COMMIT_SHORT_SHA}

# Uninstall BigBang on RKE2 cluster on AWS
aws/rke2/bigbang down:
  stage: bigbang down
  extends:
    - .infra cleanup
    - .bigbang
  needs:
    - job: aws/rke2/cluster up
      artifacts: true
    - job: aws/rke2/bigbang test
  before_script:
    - mkdir -p ~/.kube
    - cp ${CI_PROJECT_DIR}/rke2.yaml ~/.kube/config
  script:
    - helm un -n bigbang bigbang
    # TODO: Smarter wait
    - sleep 180
  environment:
    name: review/aws-${CI_COMMIT_REF_SLUG}-${CI_COMMIT_SHORT_SHA}

# Destroy RKE2 cluster on AWS
aws/rke2/cluster down:
  stage: cluster down
  extends:
    - .infra cleanup
    - .rke2 down
  needs:
    - job: aws/rke2/bigbang down
    - job: pre vars
      artifacts: true
  environment:
    name: review/aws-${CI_COMMIT_REF_SLUG}-${CI_COMMIT_SHORT_SHA}

#-----------------------------------------------------------------------------------------------------------------------

#-----------------------------------------------------------------------------------------------------------------------
# Release Jobs
#

package:
  stage: package
  image: registry.dsop.io/platform-one/big-bang/umbrella/synker:0.0.1
  rules:
    # run job for manual tag events
    - if: $CI_COMMIT_TAG
    #   when: never
    # # run job on commits to default branch
    # - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
  before_script:
    # Set up auth
    - mkdir -p /root/.docker
    - echo $DOCKER_AUTH_CONFIG > /root/.docker/config.json
  script:
    - cp ./scripts/package/synker.yaml ./synker.yaml
    # Populate images list in synker config
    # NOTE: This is stupid and hacky, use yq or something better to do this
    - cat images.txt | sed -e 's/^/    - /' >> synker.yaml
    - synker pull -b=1
    # Tar up synker as well?
    - cp /usr/local/bin/synker synker.yaml /var/lib/registry/
    - tar -C /var/lib/registry -czvf $IMAGE_PKG .
    - tar -czvf $IMAGE_PKG /var/lib/registry
    # Package dependent repos
    - ./scripts/package/gits.sh
    - tar -czf $REPOS_PKG repos/
    # Prep release
    - mkdir -p release
    - mv $IMAGE_LIST $IMAGE_PKG $REPOS_PKG release/
    # Publish packages to s3 release
    - aws s3 sync --quiet release/ s3://umbrella-bigbang-releases/umbrella/${CI_COMMIT_TAG}
  after_script: []

release:
  stage: release
  image: registry.gitlab.com/gitlab-org/release-cli:latest
  rules:
    # run job for manual tag events
    - if: $CI_COMMIT_TAG
    #   when: never
    # # run job on commits to default branch
    # - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
  variables:
    RELEASE_ENDPOINT: https://${RELEASE_BUCKET}.s3-${AWS_DEFAULT_REGION}.amazonaws.com/umbrella/${CI_COMMIT_TAG}
  script:
    - |
      release-cli create --name "Big Bang v${CI_COMMIT_TAG}" --tag-name ${CI_COMMIT_TAG} \
        --description "Automated release notes are a WIP." \
        --assets-link "{\"name\":\"${IMAGE_LIST}\",\"url\":\"${RELEASE_ENDPOINT}/${IMAGE_LIST}\"}" \
        --assets-link "{\"name\":\"${IMAGE_PKG}\",\"url\":\"${RELEASE_ENDPOINT}/${IMAGE_PKG}\"}" \
        --assets-link "{\"name\":\"${REPOS_PKG}\",\"url\":\"${RELEASE_ENDPOINT}/${REPOS_PKG}\"}"

#-----------------------------------------------------------------------------------------------------------------------