Add kube-api-linter

Author: camilamacedo86

.custom-gcl.yml

@@ -0,0 +1,7 @@
+version: v2.7.2
+name: golangci-lint-kube-api
+destination: ./bin
+
+plugins:
+  - module: sigs.k8s.io/kube-api-linter
+    version: latest

.golangci.yaml

@@ -21,6 +21,7 @@ linters:
     - unconvert
     - unparam
     - whitespace
+    - kubeapilinter
   settings:
     errorlint:
       errorf: false
@@ -42,6 +43,17 @@ linters:
           alias: bsemver
         - pkg: ^github.com/operator-framework/operator-controller/internal/shared/util/([^/]+)$
           alias: ${1}util
+    custom:
+      kubeapilinter:
+        type: module
+        description: "Kube API Linter plugin"
+        original-url: "sigs.k8s.io/kube-api-linter"
+        settings:
+          linters: {}
+          lintersConfig:
+            optionalfields:
+              pointers:
+                preference: WhenRequired
   exclusions:
     generated: lax
     presets:
@@ -53,6 +65,10 @@ linters:
       - third_party$
       - builtin$
       - examples$
+    rules:
+      - path-except: "^api/"
+        linters:
+          - kubeapilinter
 formatters:
   enable:
     - gci

Makefile

@@ -117,9 +117,19 @@ help-extended: #HELP Display extended help.
 
 #SECTION Development
 
+GOLANGCI_LINT_KUBE_API := bin/golangci-lint-kube-api
+
+$(GOLANGCI_LINT_KUBE_API): $(GOLANGCI_LINT) .custom-gcl.yml
+	@echo "Building custom golangci-lint with kubeapilinter plugin..."
+	@$(GOLANGCI_LINT) custom || { \
+		echo "Failed to build custom golangci-lint."; \
+		rm -f $(GOLANGCI_LINT_KUBE_API); \
+		exit 1; \
+	}
+
 .PHONY: lint
-lint: lint-custom $(GOLANGCI_LINT) #HELP Run golangci linter.
-	$(GOLANGCI_LINT) run --build-tags $(GO_BUILD_TAGS) $(GOLANGCI_LINT_ARGS)
+lint: lint-custom $(GOLANGCI_LINT_KUBE_API) #HELP Run golangci linter.
+	$(GOLANGCI_LINT_KUBE_API) run --build-tags $(GO_BUILD_TAGS) $(GOLANGCI_LINT_ARGS)
 
 lint-helm: $(HELM) #HELP Run helm linter
 	helm lint helm/olmv1