Phase 1: Add MariaDB operator installation

mariadb-operator/README.md

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+# MariaDB Operator
+
+This folder contains the MariaDB operator installation for the cluster.
+
+## Components
+
+- **operator-crds-helm.yaml**: Installs MariaDB operator CRDs (v25.10.4)
+- **operator-helm.yaml**: Installs MariaDB operator (v25.10.4)
+- **kustomization.yaml**: Kustomize manifest for organizing resources
+
+## Configuration
+
+- **Namespace**: `mariadb-system`
+- **Chart Repository**: https://mariadb-operator.github.io/mariadb-operator
+- **Chart Version**: 25.10.4
+- **Metrics**: Enabled (ServiceMonitor disabled - Prometheus Operator not installed)
+
+## Managed By
+
+ArgoCD Application: `mariadb-operator-install` (defined in `/apps/templates/mariadb-operator-folder.yaml`)
+
+## Usage
+
+MariaDB instances are created using the `MariaDB` CRD in application namespaces.
+See `/mbgwp/mariadb-cluster.yaml` for an example.

mariadb-operator/kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: mariadb-system
+resources:
+  - operator-crds-helm.yaml
+  - operator-helm.yaml

mariadb-operator/operator-crds-helm.yaml

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+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: mariadb-operator-crds
+  namespace: argocd
+spec:
+  destination:
+    namespace: mariadb-system
+    server: https://kubernetes.default.svc
+  project: default
+  source:
+    chart: mariadb-operator-crds
+    repoURL: https://mariadb-operator.github.io/mariadb-operator
+    targetRevision: 25.10.4
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
+      - ServerSideApply=true

mariadb-operator/operator-helm.yaml

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+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: mariadb-operator
+  namespace: argocd
+spec:
+  destination:
+    namespace: mariadb-system
+    server: https://kubernetes.default.svc
+  project: default
+  source:
+    chart: mariadb-operator
+    repoURL: https://mariadb-operator.github.io/mariadb-operator
+    targetRevision: 25.10.4
+    helm:
+      values: |
+        metrics:
+          enabled: true
+          serviceMonitor:
+            enabled: false
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true

mbgwp/mariadb-operator-credentials-es.yaml

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+apiVersion: external-secrets.io/v1beta1
+kind: ExternalSecret
+metadata:
+  name: mbgwp-mariadb-credentials
+  namespace: mbgwp
+spec:
+  refreshInterval: 15m
+  secretStoreRef:
+    name: vault-backend
+    kind: ClusterSecretStore
+  target:
+    name: mbgwp-mariadb-credentials
+    creationPolicy: Owner
+  data:
+    - secretKey: root-password
+      remoteRef:
+        key: kv/mariadboperator
+        property: mariadb-operator-root-password
+    - secretKey: password
+      remoteRef:
+        key: kv/mariadboperator
+        property: mariadb-operator-user-password