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Build kubectl image #187

Build kubectl image

Build kubectl image #187

Workflow file for this run

name: Build kubectl image
on:
schedule:
# This will run the job daily at 00:13 UTC
- cron: "13 0 * * *"
workflow_dispatch:
env:
REGISTRY: ghcr.io
REGCTL_VERSION: v0.5.7
SEMVER_VERSION: 3.4.0
defaults:
run:
shell: bash
jobs:
prepare-matrix:
name: Prepare matrix
runs-on: ubuntu-latest
outputs:
matrix: ${{ steps.prepare-matrix.outputs.matrix }}
build: ${{ steps.prepare-matrix.outputs.build }}
repository: ${{ steps.prepare-repository-name.outputs.repository }}
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Setup regctl
uses: regclient/actions/regctl-installer@main
with:
release: ${{ env.REGCTL_VERSION }}
install-dir: ${{ runner.temp }}/bin
- name: Setup semver
uses: sap/cs-actions/setup-semver@main
with:
version: ${{ env.SEMVER_VERSION }}
install-directory: ${{ runner.temp }}/bin
- name: Prepare repository name
id: prepare-repository-name
run: |
repository=$REGISTRY/${{ github.repository }}
echo "repository=${repository,,}" >> $GITHUB_OUTPUT
- name: Log in to the registry
run: |
regctl registry login $REGISTRY --user ${{ github.actor }} --pass-stdin <<< ${{ github.token }}
- name: Fetch k8s versions
id: fetch-k8s-versions
run: |
page=1
while true; do
release_info=$(curl \
--silent \
--header "Accept: application/vnd.github+json" \
--header "Authorization: Bearer ${{ github.token }}" \
--header "X-GitHub-Api-Version: 2022-11-28" \
"https://api.github.com/repos/kubernetes/kubernetes/tags?page=${page}&per_page=100"
)
tag_names=$(echo "${release_info}" | grep "name" | awk '{ print substr($2, 2, length($2)-3) }')
[[ "${tag_names}" == "" ]] && break
tag_names=$(echo "$tag_names" | grep -vE 'alpha|beta|rc')
echo "${tag_names}" | awk '/^v1\.(2[6-9]|[3-9][0-9])\..*/||/^v[2-9]\..*/' | sort -V >> k8s_released_versions.txt
sed -i '/^$/d' k8s_released_versions.txt
((page=page+1))
done
shell: bash {0}
- name: Fetch built versions
id: fetch-built-versions
run: |
regctl tag list ${{ steps.prepare-repository-name.outputs.repository }} | sort -V > gh_com_tags.txt
- name: Print unbuilt versions and prepare matrix
id: prepare-matrix
run: |
unbuilt_versions=$(comm -23 <(sort k8s_released_versions.txt) <(sort gh_com_tags.txt) | tr '\n' ',' | sed 's/,$//')
if [[ "${unbuilt_versions}" == "" ]]
then
echo "All the released k8s versions were built already"
exit 0
else
echo "Unbuilt versions: $unbuilt_versions"
echo "matrix={\"k8s-version\":[$(echo $unbuilt_versions | sed 's/\([^,]*\)/"\1"/g')]}" >> $GITHUB_OUTPUT
echo "build=true" >> $GITHUB_OUTPUT
fi
build-image:
name: Build image
if: needs.prepare-matrix.outputs.build == 'true'
needs: prepare-matrix
runs-on: ubuntu-latest
strategy:
matrix: ${{fromJson(needs.prepare-matrix.outputs.matrix)}}
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Setup Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Log in to the Container registry
uses: docker/login-action@v3
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ github.token }}
- name: Build and push docker image
uses: docker/build-push-action@v5
with:
platforms: linux/amd64,linux/arm64
context: .
file: ./Dockerfile
tags: ${{ needs.prepare-matrix.outputs.repository }}:${{ matrix['k8s-version'] }}
cache-from: |
type=gha,scope=sha-${{ github.sha }}
type=gha,scope=${{ github.ref_name }}
type=gha,scope=${{ github.base_ref || 'main' }}
type=gha,scope=main
cache-to: |
type=gha,scope=sha-${{ github.sha }},mode=max
type=gha,scope=${{ github.ref_name }},mode=max
build-args: "KUBECTL_VERSION=${{ matrix['k8s-version'] }}"
push: true