Files
neon/.github/workflows/_create-release-pr.yml
JC Grünhage ef0d4a48a8 Reuse artifacts from release PRs (#11061)
## Problem
When we release our components, we perform builds in the release PR,
then test the components, then merge the PR, and then build everything
*again*, run tests *again*, and only then start deployments.

To speed things up, we want to perform builds and run tests in the PR,
and start deployments using the existing artifacts from the release PR.

To make that possible, we need to have both CI pipelines running on the
same commit hash, which requires fast forwarding release. That only
works, if we have a commit in the PR that has the current release branch
state as an ancestor.

## Summary of changes
- Changes to release PR creation:
- Remove templates and automatic bodies for release PRs. The previous
template wasn't used anymore, and the automatic body we created in the
pipeline didn't contain any useful content anymore after the changees
here.
- Make it possible to select the source branch. For releases that aren't
cut from `main`, like https://github.com/neondatabase/neon/pull/11051,
we need a way to trigger the new flow from a different branch.
- Determine `release-branch` automatically from the component name
instead of passing that as well.
- Changes to the merge queue job:
- Rename `get-changed-files` to `meta` in preparation of additional data
being fetched as part of that job
- Fail the merge queue if we're trying to merge into a branch other than
main - this is to prevent non-fast-forward merges.
- Label PRs to branches other than main as `fast-forward`, to trigger
the fast-forward job
- Add a fast-forward job that can be triggered with the `fast-forward`
label that performs a fast-forward merge. This only happens if the PR
has `mergeable_state == clean`, so CI having passed.
- Build and Test on releases now skips building images, skips testing
images and skips triggering e2e tests. We add new tags to the images
from the release PR to tag them as release images, and we push them to
the prod registries.
2025-03-12 21:00:59 +00:00

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YAML

name: Create Release PR
on:
workflow_call:
inputs:
component-name:
description: 'Component name'
required: true
type: string
source-branch:
description: 'Source branch'
required: true
type: string
secrets:
ci-access-token:
description: 'CI access token'
required: true
defaults:
run:
shell: bash -euo pipefail {0}
jobs:
create-release-branch:
runs-on: ubuntu-22.04
permissions:
contents: write # for `git push`
steps:
- uses: actions/checkout@v4
with:
ref: ${{ inputs.source-branch }}
- name: Set variables
id: vars
env:
COMPONENT_NAME: ${{ inputs.component-name }}
RELEASE_BRANCH: >-
${{
false
|| inputs.component-name == 'Storage' && 'release'
|| inputs.component-name == 'Proxy' && 'release-proxy'
|| inputs.component-name == 'Compute' && 'release-compute'
}}
run: |
today=$(date +'%Y-%m-%d')
echo "title=${COMPONENT_NAME} release ${today}" | tee -a ${GITHUB_OUTPUT}
echo "rc-branch=rc/${RELEASE_BRANCH}/${today}" | tee -a ${GITHUB_OUTPUT}
echo "release-branch=${RELEASE_BRANCH}" | tee -a ${GITHUB_OUTPUT}
- name: Configure git
run: |
git config user.name "github-actions[bot]"
git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
- name: Create RC branch
env:
RELEASE_BRANCH: ${{ steps.vars.outputs.release-branch }}
RC_BRANCH: ${{ steps.vars.outputs.rc-branch }}
TITLE: ${{ steps.vars.outputs.title }}
run: |
git switch -c "${RC_BRANCH}"
# Manually create a merge commit on the current branch, keeping the
# tree and setting the parents to the current HEAD and the HEAD of the
# release branch. This commit is what we'll fast-forward the release
# branch to when merging the release branch.
# For details on why, look at
# https://docs.neon.build/overview/repositories/neon.html#background-on-commit-history-of-release-prs
current_tree=$(git rev-parse 'HEAD^{tree}')
release_head=$(git rev-parse "${RELEASE_BRANCH}")
current_head=$(git rev-parse HEAD)
merge_commit=$(git commit-tree -p "${current_head}" -p "${release_head}" -m "${TITLE}" "${current_tree}")
# Fast-forward the current branch to the newly created merge_commit
git merge --ff-only ${merge_commit}
git push origin "${RC_BRANCH}"
- name: Create a PR into ${{ steps.vars.outputs.release-branch }}
env:
GH_TOKEN: ${{ secrets.ci-access-token }}
RC_BRANCH: ${{ steps.vars.outputs.rc-branch }}
RELEASE_BRANCH: ${{ steps.vars.outputs.release-branch }}
TITLE: ${{ steps.vars.outputs.title }}
run: |
gh pr create --title "${TITLE}" \
--head "${RC_BRANCH}" \
--base "${RELEASE_BRANCH}"