Add diagrams test

catch-all/07_diagrams_as_code/06_stateful_k8s.py

@@ -0,0 +1,20 @@
+#! /usr/bin/env python
+
+from diagrams import Cluster, Diagram
+from diagrams.k8s.compute import Pod, StatefulSet
+from diagrams.k8s.network import Service
+from diagrams.k8s.storage import PV, PVC, StorageClass
+
+with Diagram("Stateful Architecture", show=False):
+    with Cluster("Apps"):
+        svc = Service("svc")
+        sts = StatefulSet("sts")
+
+        apps = []
+        for _ in range(3):
+            pod = Pod("pod")
+            pvc = PVC("pvc")
+            pod - sts - pvc
+            apps.append(svc >> pod >> pvc)
+
+    apps << PV("pv") << StorageClass("sc")