Add Docker autobuilds

.github/workflows/docker.yml

@@ -0,0 +1,122 @@
+name: Docker
+
+
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - 'v*.*.*'
+    paths-ignore:
+      - '**/*.md'
+      - docker-compose.yaml
+  workflow_dispatch:
+
+
+env:
+  DOCKER_FILE: Dockerfile
+  DOCKER_REPO: codexstorage/dist-tests-prometheus
+
+
+jobs:
+  # Build platform specific image
+  build:
+    strategy:
+      fail-fast: true
+      matrix:
+        target:
+          - os: linux
+            arch: amd64
+          - os: linux
+            arch: arm64
+        include:
+          - target:
+              os: linux
+              arch: amd64
+            builder: ubuntu-22.04
+          - target:
+              os: linux
+              arch: arm64
+            builder: buildjet-4vcpu-ubuntu-2204-arm
+
+    name: Build ${{ matrix.target.os }}/${{ matrix.target.arch }}
+    runs-on: ${{ matrix.builder }}
+    outputs:
+      tags-linux-amd64: ${{ steps.tags.outputs.tags-linux-amd64 }}
+      tags-linux-arm64: ${{ steps.tags.outputs.tags-linux-arm64 }}
+    env:
+      PLATFORM: ${{ format('{0}/{1}', 'linux', matrix.target.arch) }}
+      SUFFIX: ${{ format('{0}-{1}', 'linux', matrix.target.arch) }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Docker - Meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.DOCKER_REPO }}
+          flavor: |
+            latest=false
+          tags: |
+            type=semver,pattern={{version}},suffix=-${{ env.SUFFIX }}
+            type=sha,suffix=-${{ env.SUFFIX }},enable=${{ !startsWith(github.ref, 'refs/tags/') }}
+
+      - name: Docker - Set tags output
+        id: tags
+        run: |
+          if [[ '${{ matrix.target.os }}' == 'linux' && '${{ matrix.target.arch }}' == 'amd64' ]]; then
+            echo "tags-linux-amd64=${{ steps.meta.outputs.tags }}" >> "$GITHUB_OUTPUT"
+          elif [[ '${{ matrix.target.os }}' == 'linux' && '${{ matrix.target.arch }}' == 'arm64' ]]; then
+            echo "tags-linux-arm64=${{ steps.meta.outputs.tags }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Docker - Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Docker - Build and Push
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ${{ env.DOCKER_FILE }}
+          platforms: ${{ env.PLATFORM }}
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+  # Publish single image
+  publish:
+    name: Push single image
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Docker - Meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.DOCKER_REPO }}
+          tags: |
+            type=semver,pattern={{version}}
+            type=sha,enable=${{ !startsWith(github.ref, 'refs/tags/') }}
+
+      - name: Docker - Set tags
+        run: |
+          # Transform multi-line tags in to the comma-seperated
+          TAGS=$(echo "${{ steps.meta.outputs.tags }}" | tr '\n' ',' | awk '{gsub(/,$/,"");}1')
+          echo "TAGS=${TAGS}" >>$GITHUB_ENV
+
+      - name: Docker - Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Docker - Create and push manifest images
+        uses: Noelware/docker-manifest-action@master
+        with:
+          inputs: ${{ env.TAGS }}
+          images: ${{ needs.build.outputs.tags-linux-amd64 }},${{ needs.build.outputs.tags-linux-arm64 }}
+          push: true

Dockerfile

@@ -0,0 +1,6 @@
+FROM prom/prometheus:v2.43.0
+
+COPY --chmod=0755 docker-entrypoint.sh /
+
+ENTRYPOINT ["/usr/bin/env"]
+CMD ["sh", "/docker-entrypoint.sh"]

README.md

@@ -0,0 +1,4 @@
+# Prometheus for Codex Distributed Testing
+
+Prometheus docker image that allows you to set the prometheus.yml configuration file from a base64 encoded environment variable.
+Very simple, really.

docker-compose.yaml

@@ -0,0 +1,10 @@
+services:
+  prometheus-envconf:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    ports:
+      - 9000:9092
+    environment:
+      - PROM_PORT=9092
+      - PROM_CONFIG=Z2xvYmFsOgogIHNjcmFwZV9pbnRlcnZhbDogMzBzCiAgc2NyYXBlX3RpbWVvdXQ6IDEwcwoKc2NyYXBlX2NvbmZpZ3M6CiAgLSBqb2JfbmFtZTogc2VydmljZXMKICAgIG1ldHJpY3NfcGF0aDogL21ldHJpY3MKICAgIHN0YXRpY19jb25maWdzOgogICAgICAtIHRhcmdldHM6CiAgICAgICAgICAtICdwcm9tZXRoZXVzOjkwOTAnCiAgICAgICAgICAtICdjb2RleC1ub2RlMTo5MDkwJwogICAgICAgICAgLSAnY29kZXgtbm9kZTI6OTA5MScKICAgICAgICAgIC0gJ2NvZGV4LW5vZGUzOjkwOTInCg==

docker-entrypoint.sh

@@ -0,0 +1,11 @@
+echo "Decoding config..."
+
+echo $PROM_CONFIG > encoded.b64
+
+base64 -d encoded.b64 > /etc/prometheus/prometheus.yml
+
+cat /etc/prometheus/prometheus.yml
+
+echo "Starting prometheus..."
+
+/bin/prometheus --web.listen-address="0.0.0.0:$PROM_PORT" --web.enable-lifecycle --config.file=/etc/prometheus/prometheus.yml