Enable Github Actions Caching

.github/workflows/docker-develop.yml

@@ -6,6 +6,9 @@ on:
       - develop
     paths-ignore:
       - 'docs/**'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
 
 jobs:
 
@@ -14,13 +17,38 @@ jobs:
     env:
       DOCKER_BUILDKIT: 1
     steps:
-      -   name: Checkout repository
-          uses: actions/checkout@v2
-
-      -   name: Publish to Docker Hub
-          uses: docker/build-push-action@92e71463491f2d026a477188b8ad3a0fdd9d672c
-          with:
-            repository: iotaledger/goshimmer
-            username: '${{ secrets.IOTALEDGER_HUB_DOCKER_LOGIN }}'
-            password: '${{ secrets.IOTALEDGER_HUB_DOCKER_PASSWORD }}'
-            tags: develop
+      - name: Checkout repository
+        uses: actions/[email protected]
+
+      - name: Set up Docker Buildx
+        uses: docker/[email protected]
+
+      - name: Cache Docker layers
+        uses: actions/[email protected]
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Login to DockerHub
+        uses: docker/[email protected]
+        with:
+          username: '${{ secrets.IOTALEDGER_HUB_DOCKER_LOGIN }}'
+          password: '${{ secrets.IOTALEDGER_HUB_DOCKER_PASSWORD }}'
+
+      - name: Publish to Docker Hub
+        uses: docker/[email protected]
+        with:
+          tags: iotaledger/goshimmer:develop
+          push: true
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+
+      - # Temp fix
+        # https://github.com/docker/build-push-action/issues/252
+        # https://github.com/moby/buildkit/issues/1896
+        name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache

plugins/gossip/gossip.go

@@ -61,6 +61,7 @@ func start(shutdownSignal <-chan struct{}) {
 	// resolve the bind address
 	address := net.JoinHostPort(config.Node().String(local.CfgBind), strconv.Itoa(gossipEndpoint.Port()))
 	localAddr, err := net.ResolveTCPAddr(gossipEndpoint.Network(), address)
+
 	if err != nil {
 		log.Fatalf("Error resolving %s: %v", local.CfgBind, err)
 	}