add workflow to dev branch (#1972)

.github/workflows/build.yml

+name: Go
+
+on:
+  push:
+    branches:
+      - 'master'
+      - 'dev'
+    tags:
+      - 'release-*'
+  pull_request:
+    branches:
+      - 'master'
+      - 'dev'
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    env:
+      GO111MODULE: on
+    steps:
+
+      - name: Set up Go 1.13
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.13
+        id: go
+
+      - name: Check out code into the Go module directory
+        uses: actions/checkout@v2
+
+      - name: Check pr is properly formatted
+        run: diff -u <(echo -n) <(gofmt -d ./pkg ./cmd ./tools ./test)
+
+      - name: Downloading go dependencies
+        run: go mod vendor
+
+      - name: Install kubebuilder
+        run: bash hack/install_kubebuilder.sh
+
+      - name: Build
+        run: make all
+
+      - name: Uploading code coverage
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        run: bash <(curl -s https://codecov.io/bash)
+
+      - name: Get branch name
+        id: extract_branch
+        shell: bash
+        run: echo "##[set-output name=branch;]$(ehco ${GITHUB_REF#refs/heads/})"
+
+      - name: Build and push docker images
+        env:
+          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
+        if: github.event_name == 'push'
+        run: bash hack/docker_build.sh ${{ steps.extract_branch.outputs.branch }}