services:
  server-nc:
    charm: ./server-nc
    num_units: 1
    exposed: true
    to:
        - "1"
    bindings:
      monitoring: demo-db # extra-binding name
      cluster: internal   # (peer) relation name
  client-nc:
    charm: ./client-nc
    num_units: 1
    to:
        - "1"
    bindings:
      public-api: public  # extra-binding name
      server: db          # (required) relation name
      cluster: storage    # (peer) relation name
series: trusty
relations:
- - server-nc:server
  - client-nc:server
machines:
  "1": 
    series: trusty
    constraints: "arch=amd64 cpu-cores=1 spaces=demo-db,internal,public,db,storage"