TSURU_SERVICES environment variable

tsuru exports an special environment variable in applications that useservices, this variable is named TSURU_SERVICES.The value of this example is a JSON describing all services instances that theapplication uses. Here is an example of the value of this variable:

  1. {
  2.     "mysql": [
  3.       {"instance_name": "mydb",
  4.        "envs": {"DATABASE_NAME": "mydb",
  5.                 "DATABASE_USER": "mydb",
  6.                 "DATABASE_PASSWORD": "secret",
  7.                 "DATABASE_HOST": "mysql.mycompany.com"}
  8.       },
  9.       {"instance_name": "otherdb",
  10.        "envs": {"DATABASE_NAME": "otherdb",
  11.                 "DATABASE_USER": "otherdb",
  12.                 "DATABASE_PASSWORD": "secret",
  13.                 "DATABASE_HOST": "mysql.mycompany.com"}
  14.       }],
  15.     "redis": [
  16.       {"instance_name": "powerredis",
  17.        "envs": {"REDIS_HOST": "remote.redis.company.com:6379"}
  18.       }],
  19.     "mongodb": []
  20. }

As described in the structure, the value of the environment variable is a JSONobject, where each key represents a service. In the example above, there arethree services: mysql, redis and mongodb. Each service contains a list ofservice instances, and each instance have a name and a map of environmentvariables.

原文: https://docs.tsuru.io/1.6/services/tsuru-services-env-var.html