Allow for a custom healthcheck field in the operator configmap

internal/controller/argo.go

@@ -34,6 +34,7 @@ import (
 	"k8s.io/client-go/dynamic"
 	"k8s.io/client-go/kubernetes"
 	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
+	"sigs.k8s.io/yaml"
 
 	argooperator "github.com/argoproj-labs/argocd-operator/api/v1beta1"
 	argoapi "github.com/argoproj/argo-cd/v3/pkg/apis/application/v1alpha1"
@@ -192,6 +193,15 @@ return health_status`,
 		})
 	}
 
+	if customChecksYAML := patternsOperatorConfig.getStringValue("gitops.customHealthChecks"); customChecksYAML != "" {
+		var customChecks []argooperator.ResourceHealthCheck
+		if err := yaml.Unmarshal([]byte(customChecksYAML), &customChecks); err != nil {
+			log.Printf("Failed to parse gitops.customHealthChecks: %v", err)
+		} else {
+			resourceHealthChecks = append(resourceHealthChecks, customChecks...)
+		}
+	}
+
 	trueBool := true
 	initVolumes := []v1.Volume{
 		{

internal/controller/argo_test.go

@@ -2241,6 +2241,56 @@ var _ = Describe("newArgoCD", func() {
 		Expect(argo.Spec.ResourceHealthChecks[1].Kind).To(Equal("Application"))
 	})
 
+	It("should append custom health checks from gitops.customHealthChecks", func() {
+		customYAML := `- group: apps
+  kind: Deployment
+  check: |
+    hs = {}
+    hs.status = "Healthy"
+    return hs
+- group: batch
+  kind: Job
+  check: |
+    hs = {}
+    hs.status = "Progressing"
+    return hs`
+		argo = newArgoCD("test-argo", "test-ns", PatternsOperatorConfig{"gitops.customHealthChecks": customYAML})
+		Expect(argo.Spec.ResourceHealthChecks).To(HaveLen(3))
+		Expect(argo.Spec.ResourceHealthChecks[0].Group).To(Equal("operators.coreos.com"))
+		Expect(argo.Spec.ResourceHealthChecks[1].Group).To(Equal("apps"))
+		Expect(argo.Spec.ResourceHealthChecks[1].Kind).To(Equal("Deployment"))
+		Expect(argo.Spec.ResourceHealthChecks[2].Group).To(Equal("batch"))
+		Expect(argo.Spec.ResourceHealthChecks[2].Kind).To(Equal("Job"))
+	})
+
+	It("should append custom health checks alongside Application health check when both are enabled", func() {
+		customYAML := `- group: apps
+  kind: Deployment
+  check: |
+    hs = {}
+    hs.status = "Healthy"
+    return hs`
+		argo = newArgoCD("test-argo", "test-ns", PatternsOperatorConfig{
+			"gitops.applicationHealthCheckEnabled": "true",
+			"gitops.customHealthChecks":            customYAML,
+		})
+		Expect(argo.Spec.ResourceHealthChecks).To(HaveLen(3))
+		Expect(argo.Spec.ResourceHealthChecks[0].Group).To(Equal("operators.coreos.com"))
+		Expect(argo.Spec.ResourceHealthChecks[1].Group).To(Equal("argoproj.io"))
+		Expect(argo.Spec.ResourceHealthChecks[2].Group).To(Equal("apps"))
+	})
+
+	It("should handle invalid YAML in gitops.customHealthChecks gracefully", func() {
+		argo = newArgoCD("test-argo", "test-ns", PatternsOperatorConfig{"gitops.customHealthChecks": "not: valid: yaml: list"})
+		Expect(argo.Spec.ResourceHealthChecks).To(HaveLen(1))
+		Expect(argo.Spec.ResourceHealthChecks[0].Group).To(Equal("operators.coreos.com"))
+	})
+
+	It("should not add custom health checks when gitops.customHealthChecks is empty", func() {
+		argo = newArgoCD("test-argo", "test-ns", PatternsOperatorConfig{"gitops.customHealthChecks": ""})
+		Expect(argo.Spec.ResourceHealthChecks).To(HaveLen(1))
+	})
+
 })
 
 var _ = Describe("commonSyncPolicy", func() {

internal/controller/patterns_operator_config.go

@@ -20,6 +20,7 @@ var DefaultPatternsOperatorConfig = PatternsOperatorConfig{
 	"gitops.csv":                           GitOpsDefaultCSV,
 	"gitops.additionalArgoAdmins":          "",
 	"gitops.applicationHealthCheckEnabled": "false",
+	"gitops.customHealthChecks":            "",
 	"gitea.chartName":                      GiteaChartName,
 	"gitea.helmRepoUrl":                    GiteaHelmRepoUrl,
 	"gitea.chartVersion":                   GiteaDefaultChartVersion,