Github action to publish testnet docker images (#974)

.github/workflows/publish-testnet-image.yml

@@ -0,0 +1,70 @@
+name: Publish Testnet Docker Image
+
+on:
+  workflow_dispatch:
+    inputs:
+      branch:
+        description: "Branch to build the Docker image from"
+        required: true
+        default: "master"
+      tag:
+        description: "Docker image tag to use"
+        required: true
+        default: "latest"
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  push_to_registries:
+    name: Push Docker image to multiple registries
+    runs-on: ubuntu-latest
+
+    permissions:
+      packages: write
+      contents: read
+      attestations: write
+      id-token: write
+
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@6524bf65af31da8d45b59e8c27de4bd072b392f5
+        with:
+          driver: docker-container
+          install: true
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push multi-platform Docker images
+        id: push
+        uses: docker/build-push-action@3b5e8027fcad23fda98b2e3ac259d8d67585f671
+        with:
+          context: .
+          file: ./testnet/Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ inputs.tag }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+      - name: Generate artifact attestation
+        uses: actions/attest-build-provenance@v2
+        with:
+          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
+          subject-digest: ${{ steps.push.outputs.digest }}
+          push-to-registry: true

compose.static.yml

@@ -4,10 +4,7 @@ services:
 
   cfgsync:
     container_name: cfgsync
-    build:
+    image: ghcr.io/logos-co/nomos-node:testnet
-      context: .
-      dockerfile: testnet/Dockerfile
-    image: nomos:latest
     volumes:
       - ./testnet:/etc/nomos
     depends_on:
@@ -16,10 +13,7 @@ services:
 
   nomos-node-0:
     container_name: nomos_node_0
-    build:
+    image: ghcr.io/logos-co/nomos-node:testnet
-      context: .
-      dockerfile: testnet/Dockerfile
-    image: nomos:latest
     ports:
       - "3000:3000/udp"
       - "18080:18080/tcp"
@@ -32,10 +26,7 @@ services:
 
   nomos-node-1:
     container_name: nomos_node_1
-    build:
+    image: ghcr.io/logos-co/nomos-node:testnet
-      context: .
-      dockerfile: testnet/Dockerfile
-    image: nomos:latest
     volumes:
       - ./testnet:/etc/nomos
       - ./tests/kzgrs/kzgrs_test_params:/kzgrs_test_params:z
@@ -48,10 +39,7 @@ services:
 
   nomos-node-2:
     container_name: nomos_node_2
-    build:
+    image: ghcr.io/logos-co/nomos-node:testnet
-      context: .
-      dockerfile: testnet/Dockerfile
-    image: nomos:latest
     volumes:
       - ./testnet:/etc/nomos
       - ./tests/kzgrs/kzgrs_test_params:/kzgrs_test_params:z
@@ -64,10 +52,7 @@ services:
 
   nomos-node-3:
     container_name: nomos_node_3
-    build:
+    image: ghcr.io/logos-co/nomos-node:testnet
-      context: .
-      dockerfile: testnet/Dockerfile
-    image: nomos:latest
     volumes:
       - ./testnet:/etc/nomos
       - ./tests/kzgrs/kzgrs_test_params:/kzgrs_test_params:z