412 lines
12 KiB
YAML
412 lines
12 KiB
YAML
# Auto DevOps
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# This CI/CD configuration provides a standard pipeline for
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# * building a Docker image (using a buildpack if necessary),
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# * storing the image in the container registry,
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# * running tests from a buildpack,
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# * running code quality analysis,
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# * creating a review app for each topic branch,
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# * and continuous deployment to production
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#
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# In order to deploy, you must have a Kubernetes cluster configured either
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# via a project integration, or via group/project variables.
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# AUTO_DEVOPS_DOMAIN must also be set as a variable at the group or project
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# level, or manually added below.
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#
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# If you want to deploy to staging first, or enable canary deploys,
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# uncomment the relevant jobs in the pipeline below.
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#
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# If Auto DevOps fails to detect the proper buildpack, or if you want to
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# specify a custom buildpack, set a project variable `BUILDPACK_URL` to the
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# repository URL of the buildpack.
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# e.g. BUILDPACK_URL=https://github.com/heroku/heroku-buildpack-ruby.git#v142
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# If you need multiple buildpacks, add a file to your project called
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# `.buildpacks` that contains the URLs, one on each line, in order.
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# Note: Auto CI does not work with multiple buildpacks yet
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image: alpine:latest
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variables:
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# AUTO_DEVOPS_DOMAIN is the application deployment domain and should be set as a variable at the group or project level.
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# AUTO_DEVOPS_DOMAIN: domain.example.com
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POSTGRES_USER: user
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POSTGRES_PASSWORD: testing-password
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POSTGRES_ENABLED: "true"
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POSTGRES_DB: $CI_ENVIRONMENT_SLUG
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stages:
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- build
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- test
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- review
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- staging
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- canary
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- production
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- cleanup
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build:
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stage: build
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image: docker:git
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services:
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- docker:dind
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variables:
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DOCKER_DRIVER: overlay2
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script:
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- setup_docker
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- build
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only:
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- branches
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test:
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services:
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- postgres:latest
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variables:
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POSTGRES_DB: test
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stage: test
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image: gliderlabs/herokuish:latest
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script:
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- setup_test_db
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- cp -R . /tmp/app
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- /bin/herokuish buildpack test
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only:
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- branches
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codequality:
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image: docker:latest
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variables:
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DOCKER_DRIVER: overlay2
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allow_failure: true
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services:
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- docker:dind
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script:
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- setup_docker
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- codeclimate
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artifacts:
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paths: [codeclimate.json]
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review:
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stage: review
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script:
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- check_kube_domain
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- install_dependencies
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- download_chart
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- ensure_namespace
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- install_tiller
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- create_secret
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- deploy
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environment:
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name: review/$CI_COMMIT_REF_NAME
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url: http://$CI_PROJECT_PATH_SLUG-$CI_ENVIRONMENT_SLUG.$AUTO_DEVOPS_DOMAIN
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on_stop: stop_review
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only:
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refs:
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- branches
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kubernetes: active
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except:
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- master
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stop_review:
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stage: cleanup
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variables:
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GIT_STRATEGY: none
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script:
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- install_dependencies
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- delete
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environment:
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name: review/$CI_COMMIT_REF_NAME
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action: stop
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when: manual
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allow_failure: true
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only:
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refs:
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- branches
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kubernetes: active
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except:
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- master
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# Keys that start with a dot (.) will not be processed by GitLab CI.
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# Staging and canary jobs are disabled by default, to enable them
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# remove the dot (.) before the job name.
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# https://docs.gitlab.com/ee/ci/yaml/README.html#hidden-keys
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# Staging deploys are disabled by default since
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# continuous deployment to production is enabled by default
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# If you prefer to automatically deploy to staging and
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# only manually promote to production, enable this job by removing the dot (.),
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# and uncomment the `when: manual` line in the `production` job.
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.staging:
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stage: staging
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script:
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- check_kube_domain
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- install_dependencies
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- download_chart
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- ensure_namespace
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- install_tiller
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- create_secret
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- deploy
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environment:
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name: staging
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url: http://$CI_PROJECT_PATH_SLUG-staging.$AUTO_DEVOPS_DOMAIN
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only:
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refs:
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- master
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kubernetes: active
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# Canaries are disabled by default, but if you want them,
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# and know what the downsides are, enable this job by removing the dot (.),
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# and uncomment the `when: manual` line in the `production` job.
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.canary:
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stage: canary
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script:
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- check_kube_domain
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- install_dependencies
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- download_chart
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- ensure_namespace
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- install_tiller
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- create_secret
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- deploy canary
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environment:
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name: production
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url: http://$CI_PROJECT_PATH_SLUG.$AUTO_DEVOPS_DOMAIN
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when: manual
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only:
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refs:
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- master
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kubernetes: active
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# This job continuously deploys to production on every push to `master`.
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# To make this a manual process, either because you're enabling `staging`
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# or `canary` deploys, or you simply want more control over when you deploy
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# to production, uncomment the `when: manual` line in the `production` job.
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production:
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stage: production
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script:
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- check_kube_domain
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- install_dependencies
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- download_chart
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- ensure_namespace
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- install_tiller
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- create_secret
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- deploy
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- delete canary
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environment:
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name: production
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url: http://$CI_PROJECT_PATH_SLUG.$AUTO_DEVOPS_DOMAIN
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# when: manual
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only:
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refs:
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- master
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kubernetes: active
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# ---------------------------------------------------------------------------
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.auto_devops: &auto_devops |
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# Auto DevOps variables and functions
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[[ "$TRACE" ]] && set -x
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auto_database_url=postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@${CI_ENVIRONMENT_SLUG}-postgres:5432/${POSTGRES_DB}
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export DATABASE_URL=${DATABASE_URL-$auto_database_url}
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export CI_APPLICATION_REPOSITORY=$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG
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export CI_APPLICATION_TAG=$CI_COMMIT_SHA
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export CI_CONTAINER_NAME=ci_job_build_${CI_JOB_ID}
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export TILLER_NAMESPACE=$KUBE_NAMESPACE
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function codeclimate() {
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cc_opts="--env CODECLIMATE_CODE="$PWD" \
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--volume "$PWD":/code \
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--volume /var/run/docker.sock:/var/run/docker.sock \
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--volume /tmp/cc:/tmp/cc"
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docker run ${cc_opts} codeclimate/codeclimate init
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docker run ${cc_opts} codeclimate/codeclimate analyze -f json > codeclimate.json
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}
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function deploy() {
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track="${1-stable}"
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name="$CI_ENVIRONMENT_SLUG"
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if [[ "$track" != "stable" ]]; then
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name="$name-$track"
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fi
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replicas="1"
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service_enabled="false"
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postgres_enabled="$POSTGRES_ENABLED"
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# canary uses stable db
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[[ "$track" == "canary" ]] && postgres_enabled="false"
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env_track=$( echo $track | tr -s '[:lower:]' '[:upper:]' )
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env_slug=$( echo ${CI_ENVIRONMENT_SLUG//-/_} | tr -s '[:lower:]' '[:upper:]' )
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if [[ "$track" == "stable" ]]; then
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# for stable track get number of replicas from `PRODUCTION_REPLICAS`
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eval new_replicas=\$${env_slug}_REPLICAS
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service_enabled="true"
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else
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# for all tracks get number of replicas from `CANARY_PRODUCTION_REPLICAS`
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eval new_replicas=\$${env_track}_${env_slug}_REPLICAS
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fi
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if [[ -n "$new_replicas" ]]; then
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replicas="$new_replicas"
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fi
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helm upgrade --install \
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--wait \
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--set service.enabled="$service_enabled" \
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--set releaseOverride="$CI_ENVIRONMENT_SLUG" \
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--set image.repository="$CI_APPLICATION_REPOSITORY" \
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--set image.tag="$CI_APPLICATION_TAG" \
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--set image.pullPolicy=IfNotPresent \
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--set application.track="$track" \
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--set application.database_url="$DATABASE_URL" \
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--set service.url="$CI_ENVIRONMENT_URL" \
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--set replicaCount="$replicas" \
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--set postgresql.enabled="$postgres_enabled" \
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--set postgresql.nameOverride="postgres" \
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--set postgresql.postgresUser="$POSTGRES_USER" \
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--set postgresql.postgresPassword="$POSTGRES_PASSWORD" \
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--set postgresql.postgresDatabase="$POSTGRES_DB" \
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--namespace="$KUBE_NAMESPACE" \
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--version="$CI_PIPELINE_ID-$CI_JOB_ID" \
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"$name" \
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chart/
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if [[ "$track" == "stable" ]]; then
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kubectl rollout status -n "$KUBE_NAMESPACE" -w "deployment/${CI_ENVIRONMENT_SLUG}-auto-deploy"
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fi
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}
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function install_dependencies() {
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apk add -U openssl curl tar gzip bash ca-certificates git
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wget -q -O /etc/apk/keys/sgerrand.rsa.pub https://raw.githubusercontent.com/sgerrand/alpine-pkg-glibc/master/sgerrand.rsa.pub
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wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.23-r3/glibc-2.23-r3.apk
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apk add glibc-2.23-r3.apk
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rm glibc-2.23-r3.apk
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curl https://kubernetes-helm.storage.googleapis.com/helm-v2.6.1-linux-amd64.tar.gz | tar zx
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mv linux-amd64/helm /usr/bin/
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helm version --client
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curl -L -o /usr/bin/kubectl https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
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chmod +x /usr/bin/kubectl
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kubectl version --client
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}
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function setup_docker() {
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if ! docker info &>/dev/null; then
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if [ -z "$DOCKER_HOST" -a "$KUBERNETES_PORT" ]; then
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export DOCKER_HOST='tcp://localhost:2375'
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fi
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fi
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}
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function setup_test_db() {
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if [ -z ${KUBERNETES_PORT+x} ]; then
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DB_HOST=postgres
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else
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DB_HOST=localhost
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fi
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export DATABASE_URL="postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@${DB_HOST}:5432/${POSTGRES_DB}"
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}
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function download_chart() {
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if [[ ! -d chart ]]; then
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auto_chart=${AUTO_DEVOPS_CHART:-gitlab/auto-deploy-app}
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auto_chart_name=$(basename $auto_chart)
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auto_chart_name=${auto_chart_name%.tgz}
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else
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auto_chart="chart"
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auto_chart_name="chart"
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fi
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helm init --client-only
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helm repo add gitlab https://charts.gitlab.io
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if [[ ! -d "$auto_chart" ]]; then
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helm fetch ${auto_chart} --untar
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fi
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if [ "$auto_chart_name" != "chart" ]; then
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mv ${auto_chart_name} chart
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fi
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helm dependency update chart/
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helm dependency build chart/
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}
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function ensure_namespace() {
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kubectl describe namespace "$KUBE_NAMESPACE" || kubectl create namespace "$KUBE_NAMESPACE"
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}
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function check_kube_domain() {
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if [ -z ${AUTO_DEVOPS_DOMAIN+x} ]; then
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echo "In order to deploy, AUTO_DEVOPS_DOMAIN must be set as a variable at the group or project level, or manually added in .gitlab-cy.yml"
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false
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else
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true
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fi
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}
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function build() {
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if [[ -f Dockerfile ]]; then
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echo "Building Dockerfile-based application..."
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docker build -t "$CI_APPLICATION_REPOSITORY:$CI_APPLICATION_TAG" .
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else
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echo "Building Heroku-based application using gliderlabs/herokuish docker image..."
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docker run -i --name="$CI_CONTAINER_NAME" -v "$(pwd):/tmp/app:ro" gliderlabs/herokuish /bin/herokuish buildpack build
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docker commit "$CI_CONTAINER_NAME" "$CI_APPLICATION_REPOSITORY:$CI_APPLICATION_TAG"
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docker rm "$CI_CONTAINER_NAME" >/dev/null
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echo ""
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echo "Configuring $CI_APPLICATION_REPOSITORY:$CI_APPLICATION_TAG docker image..."
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docker create --expose 5000 --env PORT=5000 --name="$CI_CONTAINER_NAME" "$CI_APPLICATION_REPOSITORY:$CI_APPLICATION_TAG" /bin/herokuish procfile start web
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docker commit "$CI_CONTAINER_NAME" "$CI_APPLICATION_REPOSITORY:$CI_APPLICATION_TAG"
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docker rm "$CI_CONTAINER_NAME" >/dev/null
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echo ""
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fi
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if [[ -n "$CI_REGISTRY_USER" ]]; then
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echo "Logging to GitLab Container Registry with CI credentials..."
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docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" "$CI_REGISTRY"
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echo ""
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fi
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echo "Pushing to GitLab Container Registry..."
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docker push "$CI_APPLICATION_REPOSITORY:$CI_APPLICATION_TAG"
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echo ""
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}
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function install_tiller() {
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echo "Checking Tiller..."
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helm init --upgrade
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kubectl rollout status -n "$TILLER_NAMESPACE" -w "deployment/tiller-deploy"
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if ! helm version --debug; then
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echo "Failed to init Tiller."
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return 1
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fi
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echo ""
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}
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function create_secret() {
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kubectl create secret -n "$KUBE_NAMESPACE" \
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docker-registry gitlab-registry \
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--docker-server="$CI_REGISTRY" \
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--docker-username="$CI_REGISTRY_USER" \
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--docker-password="$CI_REGISTRY_PASSWORD" \
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--docker-email="$GITLAB_USER_EMAIL" \
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-o yaml --dry-run | kubectl replace -n "$KUBE_NAMESPACE" --force -f -
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}
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function delete() {
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track="${1-stable}"
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name="$CI_ENVIRONMENT_SLUG"
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if [[ "$track" != "stable" ]]; then
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name="$name-$track"
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fi
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helm delete "$name" || true
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}
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before_script:
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- *auto_devops
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