Use named volumes for mattermost.

automation/docker-compose.yaml

@@ -9,8 +9,16 @@ networks:
 volumes:
   semaphore:
     name: semaphore
+  mattermost:
+    name: mattermost
   mattermost-config:
     name: mattermost-config
+  mattermost-client-plugins:
+    name: mattermost-client-plugins
+  mattermost-plugins:
+    name: mattermost-plugins
+  mattermost-logs:
+    name: mattermost-logs
 
 services:
   semaphore:
@@ -54,7 +62,11 @@ services:
       - proxy
       - internal
     volumes:
+      - mattermost:/mattermost/data
       - mattermost-config:/mattermost/config:rw
+      - mattermost-client-plugins:/mattermost/client/plugins
+      - mattermost-plugins:/mattermost/plugins
+      - mattermost-logs:/mattermost/logs
     labels:
       - "traefik.enable=true"
       - "traefik.http.routers.mattermost.entrypoints=web"