feat: add ClusterServiceVersion, Subscription, InstallPlan, OperatorGroup, and CatalogSource analyzers (#1564)

Signed-off-by: Bruno Andrade <bruno.balint@gmail.com>

pkg/analyzer/catalogsource.go

@@ -0,0 +1,53 @@
+package analyzer
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/k8sgpt-ai/k8sgpt/pkg/common"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+type CatalogSourceAnalyzer struct{}
+
+var catSrcGVR = schema.GroupVersionResource{
+	Group:    "operators.coreos.com",
+	Version:  "v1alpha1",
+	Resource: "catalogsources",
+}
+
+func (CatalogSourceAnalyzer) Analyze(a common.Analyzer) ([]common.Result, error) {
+	kind := "CatalogSource"
+	if a.Client.GetDynamicClient() == nil {
+		return nil, fmt.Errorf("dynamic client is nil in %s analyzer", kind)
+	}
+
+	list, err := a.Client.GetDynamicClient().
+		Resource(catSrcGVR).Namespace(metav1.NamespaceAll).
+		List(a.Context, metav1.ListOptions{})
+	if err != nil {
+		return nil, err
+	}
+
+	var results []common.Result
+	for _, item := range list.Items {
+		ns, name := item.GetNamespace(), item.GetName()
+
+		state, _, _ := unstructured.NestedString(item.Object, "status", "connectionState", "lastObservedState")
+		addr, _, _ := unstructured.NestedString(item.Object, "status", "connectionState", "address")
+
+		// Only report if state is present and not READY
+		if state != "" && strings.ToUpper(state) != "READY" {
+			results = append(results, common.Result{
+				Kind: kind,
+				Name: ns + "/" + name,
+				Error: []common.Failure{{
+					Text: fmt.Sprintf("connectionState=%s (address=%s)", state, addr),
+				}},
+			})
+		}
+	}
+	return results, nil
+}