feat: add health check for ClusterResourceSet (#20746)

Signed-off-by: nueavv <nuguni@kakao.com>

Author: nueavv

resource_customizations/addons.cluster.x-k8s.io/ClusterResourceSet/health.lua

@@ -0,0 +1,31 @@
+function getStatus(obj) 
+  local hs = {}
+  hs.status = "Progressing"
+  hs.message = "Initializing cluster resource set"
+
+  if obj.status ~= nil then
+    if obj.status.conditions ~= nil then
+      for i, condition in ipairs(obj.status.conditions) do
+
+        -- Ready
+        if condition.type == "ResourcesApplied" and condition.status == "True" then
+          hs.status = "Healthy"
+          hs.message = "cluster resource set is applied"
+          return hs
+        end
+
+        -- Resources Applied
+        if condition.type == "ResourcesApplied" and condition.status == "False" then
+          hs.status = "Degraded"
+          hs.message = condition.message
+          return hs
+        end
+
+      end
+    end
+  end
+  return hs
+end
+
+local hs = getStatus(obj)
+return hs

resource_customizations/addons.cluster.x-k8s.io/ClusterResourceSet/health_test.yaml

@@ -0,0 +1,13 @@
+tests:
+- healthStatus:
+    status: Progressing
+    message: 'Initializing cluster resource set'
+  inputPath: testdata/progressing_resourceapplied.yaml
+- healthStatus:
+    status: Degraded
+    message: 'Failed to apply resources'
+  inputPath: testdata/degraded_resourceapplied.yaml
+- healthStatus:
+    status: Healthy
+    message: 'cluster resource set is applied'
+  inputPath: testdata/healthy_resourceapplied.yaml

resource_customizations/addons.cluster.x-k8s.io/ClusterResourceSet/testdata/degraded_resourceapplied.yaml

@@ -0,0 +1,27 @@
+apiVersion: addons.cluster.x-k8s.io/v1beta1
+kind: ClusterResourceSet
+metadata:
+  finalizers:
+    - addons.cluster.x-k8s.io
+  generation: 1
+  labels:
+    app.argocd.io/instance: clustername
+  name: clustername-resource-set
+  namespace: capi-managed-cluster
+spec:
+  clusterSelector:
+    matchLabels:
+      clusterName: clustername
+  resources:
+    - kind: ConfigMap
+      name: clustername-default-rbac
+  strategy: ApplyOnce
+status:
+  conditions:
+    - lastTransitionTime: '2024-11-11T03:28:48Z'
+      message: "Failed to apply resources"
+      reason: RemoteClusterClientFailed
+      severity: Error
+      status: 'False'
+      type: ResourcesApplied
+  observedGeneration: 1

resource_customizations/addons.cluster.x-k8s.io/ClusterResourceSet/testdata/healthy_resourceapplied.yaml

@@ -0,0 +1,24 @@
+apiVersion: addons.cluster.x-k8s.io/v1beta1
+kind: ClusterResourceSet
+metadata:
+  finalizers:
+    - addons.cluster.x-k8s.io
+  generation: 2
+  labels:
+    app.argocd.io/instance: clustername
+  name: clustername-resource-set
+  namespace: capi-managed-cluster
+spec:
+  clusterSelector:
+    matchLabels:
+      clusterName: clustername
+  resources:
+    - kind: ConfigMap
+      name: clustername-default-rbac
+  strategy: ApplyOnce
+status:
+  conditions:
+    - lastTransitionTime: '2024-11-08T08:49:13Z'
+      status: 'True'
+      type: ResourcesApplied
+  observedGeneration: 2

resource_customizations/addons.cluster.x-k8s.io/ClusterResourceSet/testdata/progressing_resourceapplied.yaml

@@ -0,0 +1,18 @@
+apiVersion: addons.cluster.x-k8s.io/v1beta1
+kind: ClusterResourceSet
+metadata:
+  finalizers:
+    - addons.cluster.x-k8s.io
+  generation: 2
+  labels:
+    app.argocd.io/instance: clustername
+  name: clustername-resource-set
+  namespace: capi-managed-cluster
+spec:
+  clusterSelector:
+    matchLabels:
+      clusterName: clustername
+  resources:
+    - kind: ConfigMap
+      name: clustername-default-rbac
+  strategy: ApplyOnce