add expose + fix traefik label

mgmt/portainer/compose.yml

@@ -6,7 +6,7 @@ services:
     labels:
       - traefik.enable=true
       - traefik.http.routers.portainer.rule=Host(`${SUBDOMAIN}.${DOMAIN_NAME}`)
-      - traefik.docker.network=webapp
+      - traefik.docker.network=mgmt
       - traefik.http.services.portainer.loadbalancer.server.port=9000
       - traefik.http.routers.portainer.tls=true
       - traefik.http.routers.portainer.entrypoints=web,websecure
@@ -25,6 +25,8 @@ services:
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
       - ./data:/data
+    expose:
+      - 9000
     networks:
       - mgmt
 networks: