Add support for waiting on a StatefulSet.
SUMMARY
This PR implements support for waiting on StatefulSet for readiness similar to how the other waiters currently work.
ISSUE TYPE
Feature Pull Request
ADDITIONAL INFORMATION
This was designed to (mostly) mimic the behaviour of the StatefulSetStatusViewer used by kubectl rollout status -w.
Reviewed-by: Abhijeet Kasurde <None>
Reviewed-by: Joshua K <None>
Reviewed-by: None <None>
Reviewed-by: Mike Graves <mgraves@redhat.com>
Reviewed-by: None <None>
* Account for updated pods when waiting on DaemonSet
The exising logic that's used to determine when a DaemonSet is ready
fails to account for the fact that a RollingUpdate first kills the pod
and then creates a new one. Simply checking if the
desiredNumberScheduled equals the numberReady will succeed in cases
when the old pod takes time to shut down, and would report that the new
Deployment is ready despite the fact that the old pod has not been
replaced, yet.
* Add changelog fragment
This address the following warning:
```
[WARNING]: conditional statements should not include jinja2 templating
delimiters such as {{ }} or {% %}. Found: {{ scale_down_no_wait_pods.resources
| length == 1 }
```
check_mode with wait updates the result based on the existing resource
which won't change with check_mode, so returns incorrect results.
Only run the wait checks in non check_mode (this also avoids the issue
of waiting for resource creation that will never happen in check mode)
Move wait logic out of raw and into common and use that
logic in scale
Fix a few broken wait condition cases highlighted by scaling
up and down
Move scale-related tests into dedicated test task file
Additional service related tests
