hydra-sql/misc/compose/pgadmin/server.json

{
    "Servers": {
      "1": {
        "Name": "postgres",
        "Group": "Servers",
        "Host": "postgres",
        "Port": 5432,
        "MaintenanceDB": "postgres",
        "Username": "lasql",
        "PassFile": "/pgpass",
        "SSLMode": "prefer"
      }
    }
  }