This update adds 2 retries to the ostree pull operation for
system node or remote subcloud installs in attempt to handle
transient http server connection failure during the pull
operation.
Test Plan:
PASS: Verify successful system node install with retry code present.
PASS: Verify successful handling of a single transient connection loss
PASS: Verify handling of a persistent connection loss ; all tries fail
PASS: Verify successful subcloud install with retry code present.
PASS: Verify subcloud ostree pull retry handling ; 1,2 and max failures
Closes-Bug: 2068651
Change-Id: I538d5a179188966882c494731111d36b89c03415
Signed-off-by: Eric MacDonald <eric.macdonald@windriver.com>
55aa34dde7