Add CI/CD automation

- Added SonarCloud related properties
- Added release workflow to test, release and push the package

.github/workflows/release.yml

@@ -0,0 +1,93 @@
+name: Software release
+on:
+  push:
+    tags:
+      - "v*"
+
+jobs:
+  tests:
+    name: Tests and coverage
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v2 
+        with:
+          fetch-depth: 0
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.17
+      - name: Perform tests
+        run: make
+      - name: Prepare coverage report
+        run: make coverage
+      - name: Upload coverage report
+        uses: actions/upload-artifact@v2.2.4
+        with:
+          name: coverage
+          path: "cover.out"
+  codecov:
+    name: Codecov
+    runs-on: ubuntu-latest
+    needs: [tests]
+    if: (needs.tests.result == 'success')
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v2 
+        with:
+          fetch-depth: 0
+      - name: Download coverage report
+        uses: actions/download-artifact@v2.0.10
+        with:
+          name: coverage
+      - uses: codecov/codecov-action@v2
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./cover.out
+  sonarcloud:
+    name: SonarCloud
+    runs-on: ubuntu-latest
+    needs: [tests]
+    if: (needs.tests.result == 'success')
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Download coverage report
+        uses: actions/download-artifact@v2.0.10
+        with:
+          name: coverage
+      - name: Perform SonarCloud scan
+        uses: SonarSource/sonarcloud-github-action@master
+        with:
+          args: >
+            -Dsonar.go.coverage.reportPaths=cover.out
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+  release:
+    name: Release steps
+    runs-on: ubuntu-latest
+    needs: [tests]
+    if: (needs.tests.result == 'success')
+    steps:
+    - name: Release
+      uses: marvinpinto/action-automatic-releases@v1.2.1
+      with:
+        repo_token: ${{ secrets.GITHUB_TOKEN }}
+        prerelease: false
+  push:
+    name: Push to pkg.go.dev
+    runs-on: ubuntu-latest
+    needs: [release]
+    if: (needs.release.result == 'success')
+    steps:
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.17
+      - name: Create dummy package
+        run: go mod init example.com/dummy
+      - name: Download dependency
+        run: GOPROXY=https://proxy.golang.org GO111MODULE=on go get github.com/Icikowski/kubeprobes@${GITHUB_REF/refs\/tags\//}

sonar-project.properties

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+sonar.projectKey=Icikowski_kubeprobes
+sonar.organization=icikowski
+
+# This is the name and version displayed in the SonarCloud UI.
+#sonar.projectName=kubeprobes
+#sonar.projectVersion=1.0
+
+# Path is relative to the sonar-project.properties file. Replace "\" by "/" on Windows.
+#sonar.sources=.
+
+# Encoding of the source code. Default is default system encoding
+#sonar.sourceEncoding=UTF-8