(GH-2028) Added docker step for GH Actions

Author: arturcic

.github/workflows/build.yml

@@ -12,6 +12,7 @@ env:
   DOTNET_ROLL_FORWARD_ON_NO_CANDIDATE_FX: 2
   ENABLED_MULTI_STAGE_BUILD: true
   ENABLED_UNIT_TESTS: true
+  ENABLED_PUBLISH_DOCKER: true
 
 jobs:
   build:
@@ -116,3 +117,41 @@ jobs:
       shell: pwsh
       run: ./build.ps1 -target Artifacts-Test -DockerDistro ${{ matrix.distro }} -DockerDotnetVersion ${{ matrix.targetFramework }}
 
+  docker:
+    name: Docker
+    needs: [artifact_test]
+    runs-on: ubuntu-latest
+    env:
+      DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+      DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
+    strategy:
+      matrix:
+          os: [linux]
+          targetFramework: [2.1, 3.1]
+          distro: [centos-7, debian-9, fedora-30, ubuntu-16.04, ubuntu-18.04]
+      fail-fast: false
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Fetch all history for all tags and branches
+      run: |
+        git fetch --prune --unshallow
+    - name: Cache tools
+      id: cache-tools
+      uses: actions/cache@v1
+      with:
+        path: tools
+        key: ${{ runner.os }}-tools-${{ hashFiles('build.cake') }}
+    - name: Cache dotnet
+      id: cache-dotnet
+      uses: actions/cache@v1
+      with:
+        path: .dotnet
+        key: ${{ runner.os }}-dotnet-${{ hashFiles('build.config') }}
+    - uses: actions/download-artifact@v1
+      with:
+        name: storage
+        path: ${{ github.workspace }}/artifacts
+    - name: '[Docker build & Test]'
+      shell: pwsh
+      run: ./build.ps1 -target Publish-DockerHub -DockerDistro ${{ matrix.distro }} -DockerDotnetVersion ${{ matrix.targetFramework }}