Hoping someone else has seen this issue pop up:
We have three Jenkins instances with the Amazon EC2 plugin installed, configured, and had been working just fine for years.
We recently noticed when swapping out some AMI id’s in our config that we could not longer validate the AMI, and digging in further, noticed earlier in the config that the Region setting in the UI would spin for a bit, then would be blank. If we save at this point, the only way we could get the plugin to work again was by hard-coding the <region> tag in the config.xml and restarting.
After doing this, the plugin config in the UI still can’t resolve the region. All of our instances have the same version installed, and are configured identically. But one instance out of the three that is having this issue. Has anyone else seen this behavior?
Thanks!