251 lines
8.0 KiB
CUE
251 lines
8.0 KiB
CUE
// STARTING POINT: https://docs.dagger.io/1012/ci
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// + ../../../.circleci/config.yml
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package main
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import (
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"alpha.dagger.io/dagger"
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"alpha.dagger.io/docker"
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"alpha.dagger.io/os"
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)
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app_src: dagger.#Artifact
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prod_dockerfile: dagger.#Input & {string}
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docker_host: dagger.#Input & {string}
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dockerhub_username: dagger.#Input & {string}
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dockerhub_password: dagger.#Input & {dagger.#Secret}
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// ⚠️ Keep this in sync with ../docker/Dockerfile.production
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runtime_image_ref: dagger.#Input & {string | *"thechangelog/runtime:2021-05-29T10.17.12Z"}
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prod_image_ref: dagger.#Input & {string | *"thechangelog/changelog.com:dagger"}
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build_version: dagger.#Input & {string}
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git_branch: dagger.#Input & {string | *""}
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git_sha: dagger.#Input & {string}
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git_author: dagger.#Input & {string}
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app_version: dagger.#Input & {string}
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build_url: dagger.#Input & {string}
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// ⚠️ Keep this in sync with manifests/changelog/db.yml
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test_db_image_ref: dagger.#Input & {string | *"circleci/postgres:12.6"}
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test_db_container_name: "changelog_test_postgres"
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// STORY #######################################################################
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//
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// 1. Migrate from CircleCI to GitHub Actions
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// - extract existing build pipeline into Dagger
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// - run the pipeline locally
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// - run the pipeline in GitHub Actions
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//
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// 2. Pipeline is 2x quicker (110s vs 228s)
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// - optimistic branching, as pipelines were originally intended
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// - use our own hardware - Linode g6-dedicated-8
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// - predictable runs, no queuing
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// - caching is buildkit layers
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//
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// 3. Open Telemetry integration out-of-the-box
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// - visualize all steps in Jaeger UI
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// PIPELINE OVERVIEW ###########################################################
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//
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// app
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// |
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// v
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// test_db_start deps ----------------------------------------\
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// | | | |
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// | v v v
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// | deps_compile_test deps_compile_prod assets_compile
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// | | | | |
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// | | | \-----|
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// | v v |
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// \--------------> test image_prod_cache assets_digest
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// | | |
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// test_db_stop <---| v |
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// | image_prod <----------/
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// | |
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// | v
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// \--------------------> image_prod_tag
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//
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// ========================== BEFORE | AFTER | CHANGE ===================================
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// Test, build & push 370s | 10s | 37.00x | https://app.circleci.com/pipelines/github/thechangelog/changelog.com/520/workflows/fbb7c701-d25a-42c1-b42c-db514cd770b4
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// + app compile 220s | 100s | 2.20x | https://app.circleci.com/pipelines/github/thechangelog/changelog.com/582/workflows/65500f3d-eccc-49da-9ab0-69846bc812a7
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// + deps compile 480s | 110s | 4.36x | https://app.circleci.com/pipelines/github/thechangelog/changelog.com/532/workflows/94f5a339-52a1-45ba-b39b-1bbb69ed6488
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//
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// Uncached ???s | 245s | ?.??x |
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//
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// #############################################################################
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test_db_start: docker.#Command & {
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host: docker_host
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env: {
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CONTAINER_NAME: test_db_container_name
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CONTAINER_IMAGE: test_db_image_ref
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}
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command: #"""
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docker container inspect $CONTAINER_NAME \
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--format 'Container "{{.Name}}" is "{{.State.Status}}"' \
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|| docker container run \
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--detach --rm --name $CONTAINER_NAME \
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--publish 127.0.0.1:5432:5432 \
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--env POSTGRES_USER=postgres \
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--env POSTGRES_DB=changelog_test \
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--env POSTGRES_PASSWORD=postgres \
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$CONTAINER_IMAGE
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docker container inspect $CONTAINER_NAME \
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--format 'Container "{{.Name}}" is "{{.State.Status}}"'
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"""#
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}
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app_image: docker.#Pull & {
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from: runtime_image_ref
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}
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// Put app_src in the correct path, /app
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app: os.#Container & {
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image: app_image
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copy: "/app": from: app_src
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}
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// https://github.com/moby/buildkit/blob/master/frontend/dockerfile/docs/syntax.md#run---mounttypecache
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deps_mount: "--mount=type=cache,id=deps,target=/app/deps/,sharing=shared"
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build_test_mount: "--mount=type=cache,id=build_test,target=/app/_build/test,sharing=shared"
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build_prod_mount: "--mount=type=cache,id=build_prod,target=/app/_build/prod,sharing=shared"
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node_modules_mount: "--mount=type=cache,id=assets_node_modules,target=/app/assets/node_modules,sharing=shared"
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deps: docker.#Build & {
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source: app
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dockerfile: """
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FROM \(runtime_image_ref)
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COPY /app/ /app/
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WORKDIR /app
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RUN \(deps_mount) mix deps.get
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"""
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}
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assets_compile: docker.#Build & {
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source: deps
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dockerfile: """
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FROM \(runtime_image_ref)
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COPY /app/ /app/
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WORKDIR /app/assets
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RUN \(deps_mount) \(node_modules_mount) yarn install --frozen-lockfile && yarn run compile
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"""
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}
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#deps_compile: docker.#Build & {
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source: deps
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dockerfile: """
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FROM \(runtime_image_ref)
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ARG MIX_ENV
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ENV MIX_ENV=$MIX_ENV
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COPY /app/ /app/
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WORKDIR /app
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RUN \(deps_mount) \(build_test_mount) \(build_prod_mount) mix do deps.compile, compile
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"""
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}
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deps_compile_test: #deps_compile & {
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args: MIX_ENV: "test"
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}
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test: docker.#Build & {
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source: deps_compile_test
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dockerfile: """
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FROM \(runtime_image_ref)
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ENV MIX_ENV=test
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COPY /app/ /app/
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WORKDIR /app
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RUN \(deps_mount) \(build_test_mount) mix test
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"""
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}
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test_db_stop: docker.#Command & {
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host: docker_host
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env: {
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DEP: test.dockerfile
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CONTAINER_NAME: test_db_container_name
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}
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command: #"""
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docker container rm --force $CONTAINER_NAME
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"""#
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}
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deps_compile_prod: #deps_compile & {
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args: MIX_ENV: "prod"
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}
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assets_digest: docker.#Build & {
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source: assets_compile
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args: ONLY_RUN_AFTER_DEPS_COMPILE_PROD_OK: deps_compile_prod.args.MIX_ENV
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dockerfile: """
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FROM \(runtime_image_ref)
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COPY /app/ /app/
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ENV MIX_ENV=prod
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WORKDIR /app/
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RUN \(deps_mount) \(build_prod_mount) \(node_modules_mount) mix phx.digest
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"""
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}
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image_prod_cache: docker.#Build & {
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source: deps_compile_prod
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dockerfile: """
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FROM \(runtime_image_ref)
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COPY /app/ /app/
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WORKDIR /app
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RUN --mount=type=cache,id=deps,target=/mnt/app/deps,sharing=shared cp -Rp /mnt/app/deps/* /app/deps/
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RUN --mount=type=cache,id=build_prod,target=/mnt/app/_build/prod,sharing=shared cp -Rp /mnt/app/_build/prod/* /app/_build/prod/
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"""
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}
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image_prod: docker.#Command & {
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host: docker_host
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copy: {
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"/tmp/app": from: os.#Dir & {
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from: image_prod_cache
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path: "/app"
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}
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"/tmp/app/priv/static": from: os.#Dir & {
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from: assets_digest
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path: "/app/priv/static"
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}
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}
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env: {
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GIT_AUTHOR: git_author
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GIT_SHA: git_sha
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APP_VERSION: app_version
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BUILD_VERSION: build_version
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BUILD_URL: build_url
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PROD_IMAGE_REF: prod_image_ref
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}
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files: "/tmp/Dockerfile": prod_dockerfile
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secret: "/run/secrets/dockerhub_password": dockerhub_password
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command: #"""
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cd /tmp
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docker build \
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--build-arg APP_FROM_PATH=/app \
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--build-arg GIT_AUTHOR="$GIT_AUTHOR" \
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--build-arg GIT_SHA="$GIT_SHA" \
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--build-arg APP_VERSION="$APP_VERSION" \
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--build-arg BUILD_URL="$BUILD_URL" \
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--tag "$PROD_IMAGE_REF" .
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"""#
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}
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if git_branch == "master" {
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image_prod_tag: docker.#Command & {
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host: docker_host
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env: {
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DOCKERHUB_USERNAME: dockerhub_username
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PROD_IMAGE_REF: image_prod.env.PROD_IMAGE_REF
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ONLY_RUN_AFTER_TEST_OK: test.dockerfile
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}
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secret: "/run/secrets/dockerhub_password": dockerhub_password
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command: #"""
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docker login --username "$DOCKERHUB_USERNAME" --password "$(cat /run/secrets/dockerhub_password)"
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docker push "$PROD_IMAGE_REF" | tee docker.push.log
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echo "$PROD_IMAGE_REF" > image.ref
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awk '/digest/ { print $3 }' < docker.push.log > image.digest
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"""#
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}
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}
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