build: improve GH actions and move cmd/ folder

.github/workflows/build.yaml

@@ -14,7 +14,8 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-go@v2
         with:
-          go-version: 1.17.x
+          go-version: 1.17
+          stable: true
 
       - run: |
           go build ./...

.github/workflows/publish.yaml

@@ -1,17 +1,74 @@
-name: ko publish
+name: Test and publish
 
 on:
   push:
     branches: ['main']
 
 jobs:
-  publish:
+  test:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-go@v2
         with:
-          go-version: 1.17.x
+          go-version: 1.17
+          stable: true
+
+      - run: |
+          go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest
+          mkdir -p local/envtest-bin/
+          setup-envtest use -p env 1.21.x --bin-dir local/envtest-bin > local/envtest-bin/env
+      - name: Run Unit tests
+        run: |
+          source local/envtest-bin/env
+          export KUBEBUILDER_ASSETS=$(pwd)/$KUBEBUILDER_ASSETS
+          go test -race -covermode atomic -coverprofile=profile.cov ./...
+
+      - name: Send coverage
+        env:
+          COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          go install github.com/mattn/goveralls
+          goveralls -coverprofile=profile.cov -service=github
+
+
+  release-tagged:
+    if: "startsWith(github.ref, 'refs/tags/v')"
+    needs:
+    # - lint
+    - test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: 1.17
+          stable: true
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: postfinance
+          password: ${{ secrets.DOCKER_TOKEN }}
+      - uses: imjasonh/[email protected]
+        env:
+          KO_DOCKER_REPO: docker.io/postfinance
+      - run: |
+          tag=$(echo ${{ github.ref }} | cut -d "/" -f 3 - ) 
+          ko publish cmd/kubelet-csr-approver/main.go --base-import-paths --tags $tag
+      
+  release-untagged:
+    if: "!startsWith(github.ref, 'refs/tags/v')"
+    needs:
+    # - lint
+    - test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: 1.17
+          stable: true
 
       - name: Login to DockerHub
         uses: docker/login-action@v1
@@ -21,4 +78,5 @@ jobs:
       - uses: imjasonh/[email protected]
         env:
           KO_DOCKER_REPO: docker.io/postfinance
-      - run: ko publish cmd/approverd/main.go
+      - run: |
+          ko publish cmd/kubelet-csr-approver/main.go --base-import-paths