feat: add docker-package-push action (#200)

* add docker-package-push action

Signed-off-by: Denis Tingaikin <denis.tingajkin@xored.com>

* fix yamllint

Signed-off-by: Denis Tingaikin <denis.tingajkin@xored.com>

* fix tag

Signed-off-by: Denis Tingaikin <denis.tingajkin@xored.com>

.github/workflows/docker-package-push.yml

@@ -0,0 +1,38 @@
+---
+name: docker-push-package
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v2
+
+      - name: "Set up Docker Buildx"
+        uses: docker/setup-buildx-action@v1
+
+      - name: "Login to Docker Hub"
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_LOGIN }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: "Login to GitHub Container Registry"
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: "Build and push"
+        uses: docker/build-push-action@v2
+        with:
+          file: Dockerfile
+          context: .
+          push: true
+          tags: |
+            networkservicemesh/cmd-nsc:latest