feat(mattermost): enable plugin uploads and add persistent storage for plugins

k8s/nextgen/20-mattermost.yaml

@@ -23,6 +23,18 @@ spec:
       targetPort: 8065
   type: ClusterIP
 ---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mattermost-plugins-pvc
+  namespace: nextgen
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
 apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
@@ -95,5 +107,14 @@ spec:
               value: "false"
             - name: MM_SERVICESETTINGS_SITEURL
               value: "https://chat.techarvest.co.zw"
+            - name: MM_PLUGINSETTINGS_ENABLEUPLOADS
+              value: "true"
           ports:
             - containerPort: 8065
+          volumeMounts:
+            - name: mattermost-plugins
+              mountPath: /mattermost/plugins
+      volumes:
+        - name: mattermost-plugins
+          persistentVolumeClaim:
+            claimName: mattermost-plugins-pvc