I have a few different containerized web apps running on Azure Container Instance (ACI). I recently noticed that some of these containers just restart with no apparent reason once in a month or so. Since the restarts are on different apps/containers each time, I have no reason to suspect that the apps are crashing.
The restart policy on all of them are set to "Always".
Is it normal or expected for the containers to restart even when there is no app crash? Perhaps when Azure does maintenance on the host machines or maybe a noisy neighbor on the same host causing a pod movement to another host?
(I am in the process of adding a log analytics workspace so that I can view the logs before the restart. Since the restarts are so infrequent, I wouldn't have any logs to look at for quite some time.)
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