workflows: Testing out github builds for docker images

Author: hjpotter92

.github/workflows/docker.yaml

@@ -0,0 +1,78 @@
+name: Docker build and push images
+
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+    tags:
+      - "v*"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: docker builds
+    permissions:
+      packages: write
+      contents: read
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ghcr.io/${{ github.repository }}
+          tags: |
+            type=sha
+            type=ref,event=pr
+            type=ref,event=tag
+            type=sha,format=long
+            type=ref,event=branch
+            type=semver,pattern={{version}},prefix=v
+            type=semver,pattern={{major}}.{{minor}},prefix=v
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=raw,value=${{ github.event.pull_request.head.ref }}
+            type=raw,value=stable,enable=${{ startsWith(github.event.ref, 'refs/tags/v') }}
+
+      - name: Build and push livepeer docker image
+        uses: docker/build-push-action@v6
+        with:
+          build-args: |
+            VERSION=${{ (github.ref_type == 'tag' && github.ref_name) || (github.event.pull_request.head.sha || github.sha) }}
+            GITHUB_SHA=${{ (github.event.pull_request.head.sha || github.sha) }}
+          context: .
+          platforms: linux/amd64
+          tags: ${{ steps.meta.outputs.tags }}
+          file: docker/Dockerfile
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          annotations: ${{ steps.meta.outputs.annotations }}
+
+      - name: Notify new build upload
+        run: curl -X POST https://holy-bread-207a.livepeer.workers.dev