Add CI Workflow for Building and Deploying Operator

 - Add GitHub Actions workflow for building and
   deploying the checkpoint-restore-operator to
   the kind kubernetes cluster.
 - Add ShellCheck and shfmt linting

Signed-off-by: Parthiba-Hazra <parthibahazra@gmail.com>

.github/workflows/tests.yaml

@@ -0,0 +1,48 @@
+name: Build and Deploy
+
+on: [push, pull_request]
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 1.21
+
+      - name: Install dependencies
+        run: |
+          # Install kind
+          curl -sLo kind "$(curl -sL https://github.com/gitapi/repos/kubernetes-sigs/kind/releases/latest | jq -r '[.assets[] | select(.name == "kind-linux-amd64")] | first | .browser_download_url')"
+          chmod +x kind
+          sudo mv kind /bin/
+          
+          # Install kubectl
+          curl -LO "https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl"
+          chmod +x kubectl
+          sudo mv kubectl /bin/
+
+      - name: Create Kubernetes cluster
+        run: |
+          kind create cluster
+          kind export kubeconfig
+
+      - name: Load Docker image into kind cluster
+        run: |
+          make docker-build IMG=checkpoint-restore-operator:ci
+          kind load docker-image checkpoint-restore-operator:ci
+
+      - name: Deploy to Kubernetes
+        run: |
+          make install
+          make deploy IMG=checkpoint-restore-operator:ci
+
+      - name: Wait for deployments to be ready
+        run: ./test/wait_for_deployment.sh checkpoint-restore-operator-controller-manager
+
+      - name: Check resources
+        run: kubectl get all -n checkpoint-restore-operator-system

.github/workflows/verify.yaml

@@ -13,6 +13,12 @@ jobs:
         with:
           go-version: '1.21'
 
+      - name: Install ShellCheck and shfmt
+        run: |
+          sudo apt update
+          sudo apt install -y shellcheck
+          go install mvdan.cc/sh/v3/cmd/shfmt@latest
+
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v6
         with:
@@ -26,6 +32,11 @@ jobs:
         uses: codespell-project/actions-codespell@v2
         with:
           skip: vendor,*.svg
+
+      - name: ShellCheck and shfmt
+        run: |
+          shellcheck ./test/*.sh
+          shfmt -d ./test/*.sh
 
   gomod:
     runs-on: ubuntu-latest

test/wait_for_deployment.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+wait_for_deployment() {
+	local deployment_name="$1"
+	timeout=60 # 5 minutes (60 * 5 sec)
+	i=1
+	echo "Checking if the ${deployment_name} deployment is ready"
+	until kubectl -n checkpoint-restore-operator-system get deployment "${deployment_name}" -o jsonpath='{.status.conditions[?(@.status=="True")].type}' | grep "Available" 2>/dev/null; do
+		((i++))
+		if [[ ${i} -gt ${timeout} ]]; then
+			echo "The ${deployment_name} deployment has not become ready before the timeout period"
+			echo "Fetching deployment status and describing pods for debugging:"
+			kubectl -n checkpoint-restore-operator-system get deployment "${deployment_name}"
+			kubectl -n checkpoint-restore-operator-system describe deployment "${deployment_name}"
+			kubectl -n checkpoint-restore-operator-system get pods
+			kubectl -n checkpoint-restore-operator-system describe pods
+			exit 1
+		fi
+		echo "Waiting for ${deployment_name} deployment to report a ready status"
+		sleep 5
+	done
+	echo "The ${deployment_name} deployment is ready"
+}
+
+wait_for_deployment "$1"