Add TimescaleDB (single instance, 10G PVC, no auth) in system namespace

cluster-config/namespaces.yaml

@@ -12,3 +12,8 @@ apiVersion: v1
 kind: Namespace
 metadata:
   name: randomly
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: system

workloads/timescaledb/timescaledb.yaml

@@ -0,0 +1,65 @@
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: timescaledb-data
+  namespace: system
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: longhorn
+  resources:
+    requests:
+      storage: 10Gi
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: timescaledb
+  namespace: system
+spec:
+  serviceName: timescaledb
+  replicas: 1
+  selector:
+    matchLabels:
+      app: timescaledb
+  template:
+    metadata:
+      labels:
+        app: timescaledb
+    spec:
+      containers:
+      - name: timescaledb
+        image: timescale/timescaledb:2.29.1-pg16
+        env:
+        - name: POSTGRES_HOST_AUTH_METHOD
+          value: trust
+        - name: PGDATA
+          value: /var/lib/postgresql/data/pgdata
+        ports:
+        - containerPort: 5432
+          name: postgres
+        volumeMounts:
+        - name: data
+          mountPath: /var/lib/postgresql/data
+        readinessProbe:
+          exec:
+            command: ["pg_isready", "-U", "postgres"]
+          initialDelaySeconds: 5
+          periodSeconds: 5
+      volumes:
+      - name: data
+        persistentVolumeClaim:
+          claimName: timescaledb-data
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: timescaledb
+  namespace: system
+spec:
+  selector:
+    app: timescaledb
+  ports:
+  - port: 5432
+    targetPort: 5432