Change model connection behaviour

There are three variables through which the connection behaviour to the Juju model can be tuned. This may be necessary if COU is run from behind a VPN or if the network is heavily used.

• COU_TIMEOUT - sets the timeout of retries for any calls by Model to libjuju. It’s unit-less and the number represents the number of seconds. Defaults to 10 seconds.

• COU_MODEL_RETRIES - sets how many times to retry connecting to the Juju model before giving up. Defaults to 5.

• COU_MODEL_RETRY_BACKOFF - sets the number of seconds in between connection retry attempts (for example, a backoff of 10 with 3 retries would wait 10s, 20s, and 30s). It’s unit-less and the number represents the number of seconds. Defaults to 2 seconds.

Usage example

COU_TIMEOUT=120 cou upgrade