Add Docker build (#1323)

.github/workflows/docker.yaml

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+name: Build and publish catalyst-api docker images
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - dev
+    tags:
+      - "v*"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  docker:
+    name: Build and publish docker image
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
+
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.CI_DOCKERHUB_USERNAME }}
+          password: ${{ secrets.CI_DOCKERHUB_TOKEN }}
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            livepeerci/${{ github.event.repository.name }}
+            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=${{ startsWith(github.event.ref, 'refs/tags/v') }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          platforms: linux/amd64, linux/arm64
+          push: true
+          build-args: |
+            GIT_VERSION=${{ github.ref_type == 'tag' && github.ref_name || github.event.pull_request.head.sha || github.sha }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Notify new build upload
+        run: curl -X POST https://holy-bread-207a.livepeer.workers.dev

Dockerfile

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+FROM	golang:1-bullseye	as	gobuild
+
+ARG TARGETARCH
+
+WORKDIR	/src
+
+ADD	go.mod go.sum	./
+RUN	go mod download
+
+ADD	.	.
+RUN make build
+
+ARG	GIT_VERSION
+ENV	GIT_VERSION="${GIT_VERSION}"
+
+FROM	ubuntu:22.04	AS	catalyst
+
+ENV	DEBIAN_FRONTEND=noninteractive
+
+LABEL	maintainer="Amritanshu Varshney <[email protected]>"
+
+ARG	BUILD_TARGET
+
+RUN	apt update && apt install -yqq wget software-properties-common
+
+RUN	apt update && apt install -yqq \
+	curl \
+	ca-certificates \
+	procps \
+	vnstat \
+	&& rm -rf /var/lib/apt/lists/*
+
+COPY --from=gobuild		/src/build/catalyst-api /bin/catalyst-api
+
+CMD ["/bin/catalyst-api"]