Example config file for two services with two instances:

services:
- instances:
  - address: 4qhxvtzoxl5f47n33ily7s5ho3ek6bixe52g225puwzbmsc3y77mqlid.onion
    name: node1
  - address: qg76rr772d4zaacv7ombgl75tli2a3tp363jmoa43dmzuqmxr7kgujqd.onion
    name: node2
  key: y74247wyhxg25lzxtitkgxxg2mhubso7rvzhfbxamjddx64sp46xjead.key
- instances:
  - address: e67oq4rmwz6f3ocju624moibvsyxv4qp466t3vbk3dt5br5dzjaw5fad.onion
    name: node1
  - address: 537anreo5qpv5xb3zkyyeedgpnc63dcawsibs5nvosrjgb4pcgni6iid.onion
    name: node2
  key: 6p6vfqgibpr4ypvqjjkmzqvvsky3i2hvi35pgls7pge4tu2cd765qgid.key