$ cf cups my-postgresqldb -p '{"uri":"http://mydb.net", "port": 2000, "user":"admin", "password":"abcdefg"}'

$ cf bind-service your-application my-postgresqldb

"user-provided": [
        {
            "credentials": {
                "password": "abcdefg",
                "port": 2000,
                "uri": "http://mydb.net",
                "user": "admin"
            },
            "syslog_drain_url": "",
            "label": "user-provided",
            "name": "my-postgresqldb",
            "tags": []
        }
    ]