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docker-nagios/.github/workflows/github-build.yml

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name: Nagios Build
# This workflow is triggered on pushes to the repository.
# Taken from tutorial
# https://github.com/gitschooldude/hello
# https://www.youtube.com/watch?v=-xIXFxuZCMI
# https://github.com/marketplace/actions/docker-setup-buildx
# https://github.com/marketplace/actions/docker-login
# https://stackoverflow.com/questions/58033366/how-to-get-current-branch-within-github-actions/58034787
on: [push]
jobs:
nagios-build:
runs-on: ubuntu-latest
steps:
- name: Print all github.* variables
id: step_one_print_all
run: |
echo "github.action : ${{ github.action }}"
echo "github.action_path : ${{ github.action_path }}"
echo "github.actor : ${{ github.actor }}"
echo "github.base_ref : ${{ github.base_ref }}"
echo 'github.event : ${{ toJson(github.event) }}'
echo "github.event_name : ${{ github.event_name }}"
echo "github.event_path : ${{ github.event_path }}"
echo "github.head_ref : ${{ github.head_ref }}"
echo "github.job : ${{ github.job }}"
echo "github.ref : ${{ github.ref }}"
echo "github.repository : ${{ github.repository }}"
echo "github.repository_owner : ${{ github.repository_owner }}"
echo "github.run_id : ${{ github.run_id }}"
echo "github.run_number : ${{ github.run_number }}"
echo "github.sha : ${{ github.sha }}"
echo "github.token : ${{ github.token }}"
echo "github.workflow : ${{ github.workflow }}"
echo "github.workspace : ${{ github.workspace }}"
echo "my docker tag: ${{ env.action_mytag }}"
- name: Set the value of a the Docker tag for branches other than master
id: step_two_branches_all
if: ${{ (startsWith( github.ref, 'refs/heads') == true) && (github.ref != 'refs/heads/master') }}
run: |
echo "action_mytag=${GITHUB_REF#refs/heads/}" >> $GITHUB_ENV
- name: Set the value of the Docker tag for git tags
id: step_set_docker_tag_for_git_tags
if: ${{ startsWith( github.ref, 'refs/tags') == true}}
run: |
echo "action_mytag=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
- name: Set the value of the Docker tag for master branch
id: step_branch_master
if: ${{ github.ref == 'refs/heads/master' }}
run: |
echo "action_mytag=latest" >> $GITHUB_ENV
- name: Print the Docker tag value which will be used
id: step_print_docker_tag
run: |
echo "My docker tag will be: ${{ env.action_mytag }}"
- name: Login to DockerHub
uses: docker/login-action@v3
with:
username: ${{ secrets.DOCKERHUB_USERNAME }}
password: ${{ secrets.DOCKERHUB_TOKEN }}
- name: Login to GitHub Container Registry
uses: docker/login-action@v3
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
-
name: Checkout
uses: actions/checkout@v4
-
name: Set up QEMU
uses: docker/setup-qemu-action@v3
-
name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
-
name: Available platforms
run: echo ${{ steps.buildx.outputs.platforms }}
-
name: Cache Docker layers for this Git branch
uses: actions/cache@v4
id: cache
with:
path: /tmp/.buildx-cache
key: ${{ runner.os }}-buildx-${{ github.ref }}
restore-keys: |
${{ runner.os }}-buildx-${{ github.ref }}
- name: Docker Buildx (build and cache)
run: |
docker buildx build \
--progress plain \
--cache-from "type=local,src=/tmp/.buildx-cache" \
--cache-to "type=local,dest=/tmp/.buildx-cache" \
--platform linux/386,linux/amd64,linux/arm64 \
--label "gitCommit=${{ github.sha }}" \
--label "org.opencontainers.image.revision=${{ github.sha }}" \
--tag ${GITHUB_ACTOR}/nagios:alpine-3-21-${{ env.action_mytag }} \
--output "type=image,push=false" -f Dockerfile .
- name: Docker Buildx (build and cache) for linux/arm/v6,linux/arm/v7 (Alpine 3.12)
run: |
docker buildx build \
--progress plain \
--cache-from "type=local,src=/tmp/.buildx-cache" \
--cache-to "type=local,dest=/tmp/.buildx-cache" \
--platform linux/arm/v6,linux/arm/v7 \
--label "gitCommit=${{ github.sha }}" \
--label "org.opencontainers.image.revision=${{ github.sha }}" \
--tag ${GITHUB_ACTOR}/nagios:alpine-3-12-${{ env.action_mytag }} \
--output "type=image,push=false" -f alpine3-12.dockerfile .
- name: 'Docker Buildx: Push to Dockerhub'
run: |
echo "== This branch is : ${GITHUB_REF}"
echo "Will push image ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} to DockerHub"
docker buildx build \
--progress plain \
--cache-from "type=local,src=/tmp/.buildx-cache" \
--platform linux/386,linux/amd64,linux/arm64 \
--label "gitCommit=${{ github.sha }}" \
--label "org.opencontainers.image.revision=${{ github.sha }}" \
--tag ${GITHUB_ACTOR}/nagios:alpine-3-21-${{ env.action_mytag }} \
--output "type=image,push=true" -f Dockerfile .
- name: 'Docker Buildx: Push to Dockerhub for linux/arm/v6,linux/arm/v7 (Alpine 3.12)'
run: |
echo "== This branch is : ${GITHUB_REF}"
echo "Will push image ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} to DockerHub"
docker buildx build \
--progress plain \
--cache-from "type=local,src=/tmp/.buildx-cache" \
--platform linux/arm/v6,linux/arm/v7 \
--label "gitCommit=${{ github.sha }}" \
--label "org.opencontainers.image.revision=${{ github.sha }}" \
--tag ${GITHUB_ACTOR}/nagios:alpine-3-12-${{ env.action_mytag }} \
--output "type=image,push=true" -f alpine3-12.dockerfile .
- name: 'Docker Buildx: Push to GitHub Container Registry'
run: |
echo "== This branch is : ${GITHUB_REF}"
echo "Will push image ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} to DockerHub"
docker buildx build \
--progress plain \
--cache-from "type=local,src=/tmp/.buildx-cache" \
--platform linux/386,linux/amd64,linux/arm64 \
--label "gitCommit=${{ github.sha }}" \
--label "org.opencontainers.image.revision=${{ github.sha }}" \
--tag ghcr.io/${GITHUB_ACTOR}/nagios:alpine-3-21-${{ env.action_mytag }} \
--output "type=image,push=true" -f Dockerfile .
- name: 'Docker Buildx: Push to GitHub Container Registry for linux/arm/v6,linux/arm/v7 (Alpine 3.12)'
run: |
echo "== This branch is : ${GITHUB_REF}"
echo "Will push image ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} to DockerHub"
docker buildx build \
--progress plain \
--cache-from "type=local,src=/tmp/.buildx-cache" \
--platform linux/arm/v6,linux/arm/v7 \
--label "gitCommit=${{ github.sha }}" \
--label "org.opencontainers.image.revision=${{ github.sha }}" \
--tag ghcr.io/${GITHUB_ACTOR}/nagios:alpine-3-12-${{ env.action_mytag }} \
--output "type=image,push=true" -f alpine3-12.dockerfile .
- name: Download and configure jq
run: |
echo "Download jq"
wget https://github.com/jqlang/jq/releases/download/jq-1.7.1/jq-linux-amd64
echo "Configure jq"
mv jq-linux-amd64 jq
chmod 744 jq
- name: Create a new unified manifest for Dockerhub
run: |
echo "Download manifest of ${GITHUB_ACTOR}/nagios:alpine-3-21-${{ env.action_mytag }}"
docker buildx imagetools inspect ${GITHUB_ACTOR}/nagios:alpine-3-21-${{ env.action_mytag }} --raw > manifest1.json
echo "Download manifest of ${GITHUB_ACTOR}/nagios:alpine-3-12-${{ env.action_mytag }}"
docker buildx imagetools inspect ${GITHUB_ACTOR}/nagios:alpine-3-12-${{ env.action_mytag }} --raw > manifest2.json
ls -l manifest*json
SHA256_AMD64=$(cat manifest1.json | ./jq -r '.manifests[]| select(.platform.architecture == "amd64") | .digest')
SHA256_ARM64=$(cat manifest1.json | ./jq -r '.manifests[]| select(.platform.architecture == "arm64") | .digest')
SHA256_I386=$(cat manifest1.json | ./jq -r '.manifests[]| select(.platform.architecture == "386") | .digest')
SHA256_ARMV6=$(cat manifest2.json | ./jq -r '.manifests[]| select(.platform.architecture == "arm") | select(.platform.variant == "v6") | .digest')
SHA256_ARMV7=$(cat manifest2.json | ./jq -r '.manifests[]| select(.platform.architecture == "arm") | select(.platform.variant == "v7") | .digest')
echo "Creating new manifest: ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }}"
set -eux
docker manifest create --amend ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} \
"${GITHUB_ACTOR}/nagios@${SHA256_AMD64}" \
"${GITHUB_ACTOR}/nagios@${SHA256_ARM64}" \
"${GITHUB_ACTOR}/nagios@${SHA256_I386}" \
"${GITHUB_ACTOR}/nagios@${SHA256_ARMV6}" \
"${GITHUB_ACTOR}/nagios@${SHA256_ARMV7}"
echo "Annotating new manifest: ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} with platforms and architectures"
docker manifest annotate ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} "${GITHUB_ACTOR}/nagios@${SHA256_AMD64}" --arch amd64 --os linux
docker manifest annotate ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} "${GITHUB_ACTOR}/nagios@${SHA256_ARM64}" --arch arm64 --os linux
docker manifest annotate ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} "${GITHUB_ACTOR}/nagios@${SHA256_I386}" --arch 386 --os linux
docker manifest annotate ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} "${GITHUB_ACTOR}/nagios@${SHA256_ARMV6}" --arch arm --os linux --variant v6
docker manifest annotate ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} "${GITHUB_ACTOR}/nagios@${SHA256_ARMV7}" --arch arm --os linux --variant v7
- name: Create a new unified manifest for GitHub Container Registry
run: |
echo "Download manifest of ghcr.io/${GITHUB_ACTOR}/nagios:alpine-3-21-${{ env.action_mytag }}"
docker buildx imagetools inspect ghcr.io/${GITHUB_ACTOR}/nagios:alpine-3-21-${{ env.action_mytag }} --raw > manifest1.json
echo "Download manifest of ghcr.io/${GITHUB_ACTOR}/nagios:alpine-3-12-${{ env.action_mytag }}"
docker buildx imagetools inspect ghcr.io/${GITHUB_ACTOR}/nagios:alpine-3-12-${{ env.action_mytag }} --raw > manifest2.json
ls -l manifest*json
SHA256_AMD64=$(cat manifest1.json | ./jq -r '.manifests[]| select(.platform.architecture == "amd64") | .digest')
SHA256_ARM64=$(cat manifest1.json | ./jq -r '.manifests[]| select(.platform.architecture == "arm64") | .digest')
SHA256_I386=$(cat manifest1.json | ./jq -r '.manifests[]| select(.platform.architecture == "386") | .digest')
SHA256_ARMV6=$(cat manifest2.json | ./jq -r '.manifests[]| select(.platform.architecture == "arm") | select(.platform.variant == "v6") | .digest')
SHA256_ARMV7=$(cat manifest2.json | ./jq -r '.manifests[]| select(.platform.architecture == "arm") | select(.platform.variant == "v7") | .digest')
echo "Creating new manifest: ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }}"
set -eux
docker manifest create --amend ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} \
ghcr.io/"${GITHUB_ACTOR}/nagios@${SHA256_AMD64}" \
ghcr.io/"${GITHUB_ACTOR}/nagios@${SHA256_ARM64}" \
ghcr.io/"${GITHUB_ACTOR}/nagios@${SHA256_I386}" \
ghcr.io/"${GITHUB_ACTOR}/nagios@${SHA256_ARMV6}" \
ghcr.io/"${GITHUB_ACTOR}/nagios@${SHA256_ARMV7}"
echo "Annotating new manifest: ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} with platforms and architectures"
docker manifest annotate ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} ghcr.io/"${GITHUB_ACTOR}/nagios@${SHA256_AMD64}" --arch amd64 --os linux
docker manifest annotate ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} ghcr.io/"${GITHUB_ACTOR}/nagios@${SHA256_ARM64}" --arch arm64 --os linux
docker manifest annotate ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} ghcr.io/"${GITHUB_ACTOR}/nagios@${SHA256_I386}" --arch 386 --os linux
docker manifest annotate ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} ghcr.io/"${GITHUB_ACTOR}/nagios@${SHA256_ARMV6}" --arch arm --os linux --variant v6
docker manifest annotate ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} ghcr.io/"${GITHUB_ACTOR}/nagios@${SHA256_ARMV7}" --arch arm --os linux --variant v7
- name: 'Push manifest to DockerHub'
run: |
echo "== This branch is : ${GITHUB_REF}"
echo "Will push image manifest ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} to DockerHub Registry"
docker manifest push ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }}
- name: 'Push manifest to GitHub Container Registry'
run: |
echo "== This branch is : ${GITHUB_REF}"
echo "Will push image ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }} to GitHub Container Registry"
docker manifest push ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }}
- name: Inspect image
run: |
docker buildx imagetools inspect ${GITHUB_ACTOR}/nagios:${{ env.action_mytag }}
docker buildx imagetools inspect ghcr.io/${GITHUB_ACTOR}/nagios:${{ env.action_mytag }}
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