sources/azure: refactor _report_ready_if_needed and _poll_imds (#1222)

Refactor _report_ready_if_needed() to work for both Savable PPS
and Runnable PPS:
* rename _report_ready_if_needed() to _report_ready_for_pps()
* return interface name from lease to support _poll_imds() behavior
  without changing it.
* fixes an issue where reporting ready return value was silently
  ignored for Savable PPS.
* add explicit handling for failure to obtain DHCP lease to
  result in sources.InvalidMetaDataException.

Refactor _poll_imds():
* use _report_ready_for_pps() for reporting ready, removing this logic
  to simplify loop logic.
* move netlink and vnetswitch out of while loop to simplify loop logic,
  leaving only reprovision polling in loop.
* add explicit handling for failure to obtain DHCP lease and
  retry in the next iteration.

Signed-off-by: Chris Patterson cpatterson@microsoft.com

0 files changed, 0 insertions, 0 deletions