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ci: decouple chart version from the deployed image version #63

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44 changes: 30 additions & 14 deletions .github/workflows/bump-and-pr.yml
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Original file line number Diff line number Diff line change
@@ -1,11 +1,11 @@
name: Bump Version
run-name: "Bump to ${{ inputs.version }}"
run-name: "Bump chart for lunar-hub ${{ inputs.version }}"

on:
workflow_dispatch:
inputs:
version:
description: 'Version to release (e.g. "2.2.0")'
description: 'lunar-hub image version to deploy (e.g. "2.4.1"). The chart''s own version auto-bumps its patch — it is independent of this.'
required: true
type: string

Expand All @@ -22,19 +22,35 @@ jobs:
fetch-depth: 0

- name: Update versions
id: versions
env:
VERSION: ${{ inputs.version }}
HUB_VERSION: ${{ inputs.version }}
run: |
yq -i ".version = \"${VERSION}\"" charts/lunar/Chart.yaml
yq -i ".hub.image.tag = \"${VERSION}\"" charts/lunar/values.yaml
yq -i ".operator.image.tag = \"${VERSION}\"" charts/lunar/values.yaml
yq -i ".operator.initImage.tag = \"${VERSION}\"" charts/lunar/values.yaml
yq -i ".operator.sidecarImage.tag = \"${VERSION}\"" charts/lunar/values.yaml
yq -i ".grafana.image.tag = \"${VERSION}\"" charts/lunar/values.yaml
# Image tags track the lunar-hub release being deployed.
yq -i ".hub.image.tag = \"${HUB_VERSION}\"" charts/lunar/values.yaml
yq -i ".operator.image.tag = \"${HUB_VERSION}\"" charts/lunar/values.yaml
yq -i ".operator.initImage.tag = \"${HUB_VERSION}\"" charts/lunar/values.yaml
yq -i ".operator.sidecarImage.tag = \"${HUB_VERSION}\"" charts/lunar/values.yaml
yq -i ".grafana.image.tag = \"${HUB_VERSION}\"" charts/lunar/values.yaml

# The chart versions INDEPENDENTLY of the hub. A bump that only re-points the
# deployed hub image is, by definition, a chart patch — so auto-increment the
# chart's own patch. Chart and hub versions are never coupled, and a chart that
# happens to share a hub version no longer blocks the hub release.
CUR=$(yq '.version' charts/lunar/Chart.yaml)
if [[ ! "$CUR" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
echo "::error::current chart version '$CUR' is not X.Y.Z — bump it manually" >&2
exit 1
fi
CHART_VERSION=$(echo "$CUR" | awk -F. '{print $1"."$2"."$3+1}')
yq -i ".version = \"${CHART_VERSION}\"" charts/lunar/Chart.yaml
echo "chart_version=${CHART_VERSION}" >> "$GITHUB_OUTPUT"
echo "Chart ${CUR} -> ${CHART_VERSION}; image tags -> lunar-hub ${HUB_VERSION}"

- name: Push release branch and open PR
env:
VERSION: ${{ inputs.version }}
HUB_VERSION: ${{ inputs.version }}
CHART_VERSION: ${{ steps.versions.outputs.chart_version }}
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
git config user.name "github-actions[bot]"
Expand All @@ -44,13 +60,13 @@ jobs:
echo "No changes to commit"
exit 0
fi
BRANCH="release/${VERSION}"
BRANCH="release/chart-${CHART_VERSION}"
git checkout -b "${BRANCH}"
git commit -m "Release ${VERSION}"
git commit -m "Release chart ${CHART_VERSION} (lunar-hub ${HUB_VERSION})"
git push -u origin "${BRANCH}"
gh pr create \
--base main \
--head "${BRANCH}" \
--title "Release ${VERSION}" \
--body "Automated bump from \`lunar-hub-v${VERSION}\` release. Updates \`Chart.yaml\` version and all image tags in \`charts/lunar/values.yaml\` to \`${VERSION}\`. The chart release itself is published by \`release.yml\` on merge to \`main\`."
--title "Release chart ${CHART_VERSION} (lunar-hub ${HUB_VERSION})" \
--body "Automated bump from the \`lunar-hub-v${HUB_VERSION}\` release. Sets the deployed image tags in \`charts/lunar/values.yaml\` to \`${HUB_VERSION}\`, and auto-bumps the chart's own \`Chart.yaml\` version to \`${CHART_VERSION}\` — chart and hub versions are independent. The chart release is published by \`release.yml\` on merge to \`main\`."
gh pr merge --auto --squash "${BRANCH}"