Added docker auto-release to CI

.github/workflows/docker.yml

@@ -0,0 +1,33 @@
+name: docker
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  docker:
+    strategy:
+        matrix:
+          go-version: [1.15.x]
+          os: [ubuntu-20.04]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - 
+        name: Checkout code
+        uses: actions/checkout@v2
+      - 
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - 
+        name: Login to Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: quay.io
+          username: ${{ secrets.DOCKER_LOGIN }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      - 
+        name: Build and Push container images
+        run: |
+          make docker

.github/workflows/release.yml

@@ -0,0 +1,43 @@
+name: release
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      -
+        name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.15
+      -
+        name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - 
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - 
+        name: Login to Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: quay.io
+          username: ${{ secrets.DOCKER_LOGIN }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      - 
+        name: Build and Push container images
+        run: |
+          make release

.goreleaser.yml

@@ -0,0 +1,14 @@
+before:
+  hooks:
+    - go mod download
+builds:
+  - id: coredns
+    main: ./cmd/coredns.go
+    binary: coredns
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+    goarch:
+      - amd64
+      - arm64