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helm-release.yml
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name: Release Helm chart
on:
push:
branches: [main]
workflow_dispatch: {}
env:
CR_CONFIGFILE: "${{ github.workspace }}/source/operations/helm/cr.yaml"
CT_CONFIGFILE: "${{ github.workspace }}/source/operations/helm/ct.yaml"
CR_INDEX_PATH: "${{ github.workspace }}/.cr-index"
CR_PACKAGE_PATH: "${{ github.workspace }}/.cr-release-packages"
CR_TOOL_PATH: "${{ github.workspace }}/.cr-tool"
jobs:
setup:
runs-on: ubuntu-latest
outputs:
changed: ${{ steps.list-changed.outputs.changed }}
chartpath: ${{ steps.list-changed.outputs.chartpath }}
steps:
- name: Checkout
uses: actions/checkout@v4
with:
fetch-depth: 0
path: source
- name: Install chart-testing
uses: helm/[email protected]
- name: List changed charts
id: list-changed
run: |
cd source
latest_tag=$( if ! git describe --tags --abbrev=0 --match='helm-chart/*' 2> /dev/null ; then git rev-list --max-parents=0 --first-parent HEAD; fi )
echo "Running: ct list-changed --config ${CT_CONFIGFILE} --since ${latest_tag} --target-branch ${{ github.ref_name }}"
changed=$(ct list-changed --config "${CT_CONFIGFILE}" --since "${latest_tag}" --target-branch "${{ github.ref_name }}")
echo "${changed}"
num_changed=$(wc -l <<< ${changed})
if [[ "${num_changed}" -gt "1" ]] ; then
echo "More than one chart changed, exiting"
exit 1
fi
if [[ -n "${changed}" ]]; then
name=$(yq ".name" < ${changed}/Chart.yaml)
version=$(yq ".version" < ${changed}/Chart.yaml)
if [ $(git tag -l "helm-chart/${version}") ]; then
echo "Tag helm-chart/${tagname} already exists, skipping release"
echo "changed=false" >> $GITHUB_OUTPUT
else
echo "Releasing ${changed}"
echo "changed=true" >> $GITHUB_OUTPUT
echo "chartpath=${changed}" >> $GITHUB_OUTPUT
fi
else
echo "No charts have changed, skipping release"
echo "changed=false" >> $GITHUB_OUTPUT
fi
release:
needs: [setup]
runs-on: ubuntu-latest
if: needs.setup.outputs.changed == 'true'
steps:
- uses: actions/create-github-app-token@v1
id: app-token
with:
app-id: ${{ secrets.ALLOYBOT_APP_ID }}
private-key: ${{ secrets.ALLOYBOT_PRIVATE_KEY }}
owner: grafana
repositories: alloy,helm-charts
- name: Checkout
uses: actions/checkout@v4
with:
fetch-depth: 0
path: source
token: ${{ steps.app-token.outputs.token }}
- name: Configure Git
run: |
cd source
git config user.name "$GITHUB_ACTOR"
git config user.email "[email protected]"
- name: Checkout helm-charts
uses: actions/checkout@v4
with:
fetch-depth: 0
repository: grafana/helm-charts
path: helm-charts
token: ${{ steps.app-token.outputs.token }}
- name: Configure Git for helm-charts
run: |
cd helm-charts
git config user.name "$GITHUB_ACTOR"
git config user.email "[email protected]"
- name: Set up Helm
uses: azure/setup-helm@v4
with:
version: v3.10.3
- name: Parse Chart.yaml
id: parse-chart
run: |
cd source
changed="${{ needs.setup.outputs.chartpath }}"
description=$(yq ".description" < ${changed}/Chart.yaml)
name=$(yq ".name" < ${changed}/Chart.yaml)
version=$(yq ".version" < ${changed}/Chart.yaml)
echo "chartpath=${changed}" >> $GITHUB_OUTPUT
echo "desc=${description}" >> $GITHUB_OUTPUT
echo "tagname=helm-chart/${version}" >> $GITHUB_OUTPUT
echo "packagename=${name}-${version}" >> $GITHUB_OUTPUT
- name: Install CR tool
run: |
mkdir "${CR_TOOL_PATH}"
mkdir "${CR_PACKAGE_PATH}"
mkdir "${CR_INDEX_PATH}"
curl -sSLo cr.tar.gz "https://github.com/helm/chart-releaser/releases/download/v1.5.0/chart-releaser_1.5.0_linux_amd64.tar.gz"
tar -xzf cr.tar.gz -C "${CR_TOOL_PATH}"
rm -f cr.tar.gz
- name: Create Helm package
run: |
cd source
"${CR_TOOL_PATH}/cr" package "${{ steps.parse-chart.outputs.chartpath }}" --config "${CR_CONFIGFILE}" --package-path "${CR_PACKAGE_PATH}"
echo "Result of chart package:"
ls -l "${CR_PACKAGE_PATH}"
- name: Create tag and check if exists on origin
run: |
cd source
echo "Making tag ${{ steps.parse-chart.outputs.tagname }}"
git tag "${{ steps.parse-chart.outputs.tagname }}"
# Note that this creates a release in grafana/helm-charts with a new tag.
# The tag name in grafana/helm-charts is <package>-<version>, while the
# tag name for grafana/alloy is helm-chart/<version>.
- name: Make github release
uses: softprops/action-gh-release@v2
with:
name: ${{ steps.parse-chart.outputs.packagename }}
repository: grafana/helm-charts
tag_name: ${{ steps.parse-chart.outputs.packagename }}
token: ${{ steps.app-token.outputs.token }}
body: |
${{ steps.parse-chart.outputs.desc }}
Source commit: https://github.com/${{ github.repository }}/commit/${{ github.sha }}
Tag on source: https://github.com/${{ github.repository }}/releases/tag/${{ steps.parse-chart.outputs.tagname }}
files: |
${{ env.CR_PACKAGE_PATH }}/${{ steps.parse-chart.outputs.packagename }}.tgz
- name: Push release tag on origin
run: |
cd source
echo "Pushing tag ${{ steps.parse-chart.outputs.tagname }}"
git push origin "${{ steps.parse-chart.outputs.tagname }}"
- name: Update helm-charts index.yaml
run: |
cd helm-charts
"${CR_TOOL_PATH}/cr" index --config "${CR_CONFIGFILE}" --token "${{ steps.app-token.outputs.token }}" --index-path "${CR_INDEX_PATH}" --package-path "${CR_PACKAGE_PATH}" --push