Capture all resources by WorkloadMonitors (#1018)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Introduced monitoring resources for HAProxy, NGINX, and generic HTTP
cache workloads, allowing improved workload observability.
- **Enhancements**
- Added standardized labels to MariaDB, Postgres, and Redis resources
for better integration and management within Kubernetes environments.
- Updated label selectors in Postgres resources to use standardized
Kubernetes app labels.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/apps/http-cache/templates/workloadmonitor.yaml

@@ -0,0 +1,39 @@
+---
+apiVersion: cozystack.io/v1alpha1
+kind: WorkloadMonitor
+metadata:
+  name: {{ $.Release.Name }}-haproxy
+spec:
+  replicas: {{ .Values.haproxy.replicas }}
+  minReplicas: 1
+  kind: http-cache
+  type: http-cache
+  selector:
+    app: {{ $.Release.Name }}-haproxy
+  version: {{ $.Chart.Version }}
+---
+apiVersion: cozystack.io/v1alpha1
+kind: WorkloadMonitor
+metadata:
+  name: {{ $.Release.Name }}-nginx
+spec:
+  replicas: {{ .Values.nginx.replicas }}
+  minReplicas: 1
+  kind: http-cache
+  type: http-cache
+  selector:
+    app: {{ $.Release.Name }}-nginx-cache
+  version: {{ $.Chart.Version }}
+---
+apiVersion: cozystack.io/v1alpha1
+kind: WorkloadMonitor
+metadata:
+  name: {{ $.Release.Name }}
+spec:
+  replicas: {{ .Values.replicas }}
+  minReplicas: 1
+  kind: http-cache
+  type: http-cache
+  selector:
+    app.kubernetes.io/instance: {{ $.Release.Name }}
+  version: {{ $.Chart.Version }}

packages/apps/mysql/templates/mariadb.yaml

@@ -57,6 +57,11 @@ spec:
     name: {{ .Release.Name }}-my-cnf
     key: config
 
+  service:
+    metadata:
+      labels:
+        app.kubernetes.io/instance: {{ $.Release.Name }}
+
   storage:
     size: {{ .Values.size }}
     resizeInUseVolumes: true

packages/apps/postgres/templates/db.yaml

@@ -44,6 +44,8 @@ spec:
   inheritedMetadata:
     labels:
       policy.cozystack.io/allow-to-apiserver: "true"
+      app.kubernetes.io/name: postgres.apps.cozystack.io
+      app.kubernets.io/instance: {{ $.Release.Name }}
 ---
 apiVersion: cozystack.io/v1alpha1
 kind: WorkloadMonitor
@@ -55,6 +57,6 @@ spec:
   kind: postgres
   type: postgres
   selector:
-    cnpg.io/cluster: {{ .Release.Name }}
-    cnpg.io/podRole: instance
+    app.kubernetes.io/name: postgres.apps.cozystack.io
+    app.kubernets.io/instance: {{ $.Release.Name }}
   version: {{ $.Chart.Version }}

packages/apps/redis/templates/redisfailover.yaml

@@ -42,6 +42,9 @@ spec:
       persistentVolumeClaim:
         metadata:
           name: redisfailover-persistent-data
+          labels:
+            app.kubernetes.io/component: redis
+            app.kubernetes.io/instance: {{ $.Release.Name }}
         spec:
           accessModes:
             - ReadWriteOnce