# To run the build locally, install cloud-build-local first.
# You will need access to a private registry, so be sure to install the docker
# credential helper.
# See: https://cloud.google.com/cloud-build/docs/build-debug-locally
# Then run:
# cloud-build-local --config=cloudbuild-release.yaml --dryrun=false \
#   --substitutions TAG_NAME=[TAG],_INTERNAL_REPO_URL=[URL] ..
#
# To manually trigger a build on GCB, run:
# gcloud builds submit --config cloudbuild-release.yaml --substitutions \
#   TAG_NAME=[TAG],_INTERNAL_REPO_URL=[URL] ..
#
# To trigger a build automatically, follow the instructions below and add a trigger:
# https://cloud.google.com/cloud-build/docs/running-builds/automate-builds
#
# This pipeline prepares a release. The pipeline should be run against the Nomulus public repo on
# GitHub. It builds the builder and base images, and hard codes the sha256 hashes of the resulting
# images in the merged code base (internal + public) , which is tagged and pushed into the release
# repo. Actual release artifacts are built from the release repo, ensuring reproducibility.
steps:
# Check the out internal repo.
- name: 'gcr.io/cloud-builders/git'
  entrypoint: /bin/bash
  args:
  - -c
  - |
    set -e
    git clone https://gerrit.googlesource.com/gcompute-tools
    ./gcompute-tools/git-cookie-authdaemon
    git clone ${_INTERNAL_REPO_URL} nomulus-internal
# Tag and push the internal repo.
- name: 'gcr.io/cloud-builders/git'
  entrypoint: /bin/bash
  args:
  - -c
  - |
    set -e
    git tag ${TAG_NAME}
    git push origin ${TAG_NAME}
  dir: 'nomulus-internal'
# Merge the repos.
- name: 'gcr.io/cloud-builders/git'
  entrypoint: /bin/bash
  args:
  - -c
  - |
    set -e
    shopt -s dotglob
    rm -rf .git && rm -rf nomulus-internal/.git
    cp -rf nomulus-internal/* .
    rm -rf nomulus-internal
# Build the builder image and tag the proxy base image, then upload them to GCR.
- name: 'gcr.io/cloud-builders/docker'
  entrypoint: /bin/bash
  args:
  - -c
  - |
    set -e
    docker build -t gcr.io/${PROJECT_ID}/builder:${TAG_NAME} .
    docker tag gcr.io/${PROJECT_ID}/builder:${TAG_NAME} gcr.io/${PROJECT_ID}/builder:latest
    docker pull gcr.io/distroless/java
    docker tag gcr.io/distroless/java gcr.io/${PROJECT_ID}/base:${TAG_NAME}
    docker tag gcr.io/distroless/java gcr.io/${PROJECT_ID}/base:latest
    docker pull gcr.io/distroless/java:debug
    docker tag gcr.io/distroless/java:debug gcr.io/${PROJECT_ID}/base-debug:${TAG_NAME}
    docker tag gcr.io/distroless/java:debug gcr.io/${PROJECT_ID}/base-debug:latest
    docker push gcr.io/${PROJECT_ID}/builder:latest
    docker push gcr.io/${PROJECT_ID}/builder:${TAG_NAME}
    docker push gcr.io/${PROJECT_ID}/base:latest
    docker push gcr.io/${PROJECT_ID}/base:${TAG_NAME}
    docker push gcr.io/${PROJECT_ID}/base-debug:latest
    docker push gcr.io/${PROJECT_ID}/base-debug:${TAG_NAME}
  dir: 'release/builder/'
# Do text replacement in the merged repo, hardcoding image digests.
- name: 'gcr.io/cloud-builders/gcloud'
  entrypoint: /bin/bash
  args:
  - -c
  - |
    set -e
    builder_digest=$(gcloud container images list-tags gcr.io/${PROJECT_ID}/builder \
      --format='get(digest)' --filter='tags = ${TAG_NAME}')
    base_digest=$(gcloud container images list-tags gcr.io/${PROJECT_ID}/base \
      --format='get(digest)' --filter='tags = ${TAG_NAME}')
    debug_digest=$(gcloud container images list-tags gcr.io/${PROJECT_ID}/base-debug \
      --format='get(digest)' --filter='tags = ${TAG_NAME}')
    sed -i s%distroless/java%${PROJECT_ID}/base@$base_digest% proxy/Dockerfile
    sed -i s%distroless/java:debug%${PROJECT_ID}/base-debug@$debug_digest% core/Dockerfile
    sed -i s/builder:latest/builder@$builder_digest/g release/cloudbuild-proxy.yaml
    sed -i s/builder:latest/builder@$builder_digest/g release/cloudbuild-nomulus.yaml
    sed -i s/builder:latest/builder@$builder_digest/g release/cloudbuild-deploy.yaml
    sed -i s/builder:latest/builder@$builder_digest/g release/cloudbuild-sync.yaml
    sed -i s/builder:latest/builder@$builder_digest/g release/cloudbuild-tag.yaml
    sed -i s/GCP_PROJECT/${PROJECT_ID}/ proxy/kubernetes/proxy-*.yaml
    sed -i s/'$${TAG_NAME}'/${TAG_NAME}/g release/cloudbuild-sync.yaml
    sed -i s/'$${TAG_NAME}'/${TAG_NAME}/g release/cloudbuild-deploy.yaml
    for environment in alpha crash sandbox production; do
      sed s/'$${_ENV}'/${environment}/g release/cloudbuild-deploy.yaml \
        > release/cloudbuild-deploy-${environment}.yaml
    done
# Upload the gradle binary to GCS if it does not exist and point URL in gradle wrapper to it.
- name: 'gcr.io/cloud-builders/gsutil'
  entrypoint: /bin/bash
  args:
  - -c
  - |
    set -e
    gradle_url=$(grep distributionUrl gradle/wrapper/gradle-wrapper.properties \
      | awk -F = '{print $2}' | sed 's/\\//g')
    gradle_bin=$(basename $gradle_url)
    gcs_loc="domain-registry-maven-repository/gradle"
    curl -O -L ${gradle_url}
    if gsutil -q stat gs://${gcs_loc}/${gradle_bin}
    then
      local_md5=$(md5sum ${gradle_bin} | awk '{print $1}')
      remote_md5=$(gsutil hash -h gs://${gcs_loc}/${gradle_bin} | grep md5 | awk '{print $3}')
      if [[ ${local_md5} != ${remote_md5} ]]
      then
        echo "${gradle_bin} HAS CHANGED ON GRADLE WEBSITE, USING THE BINARY ON GCS."
      fi
    else
      gsutil cp $gradle_bin gs://${gcs_loc}/
      gsutil acl ch -u AllUsers:R gs://${gcs_loc}/${gradle_bin}
    fi
    rm ${gradle_bin}
    sed -i s%services.gradle.org/distributions%storage.googleapis.com/${gcs_loc}% \
      gradle/wrapper/gradle-wrapper.properties
# Check out the release repo.
- name: 'gcr.io/cloud-builders/gcloud'
  args: ['source', 'repos', 'clone', 'nomulus-release']
# Tag and check in the release repo.
- name: 'gcr.io/cloud-builders/git'
  entrypoint: /bin/bash
  args:
  - -c
  - |
    set -e
    cp -rf nomulus-release/.git .
    rm -rf nomulus-release
    git config --global user.name "Cloud Build"
    git config --global user.email \
      $(gcloud auth list --format='get(account)' --filter=active)
    git add .
    git commit -m "Release commit for tag ${TAG_NAME}"
    git push origin master
    git tag ${TAG_NAME}
    git push origin ${TAG_NAME}
timeout: 3600s
options:
  machineType: 'N1_HIGHCPU_8'