Deploy containers to Azure App Service

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Consideration	Update the image reference directly	Continuous deployment webhook	Staging slot and swap
What starts it	You run az webapp config container set with the new image or tag	A docker push to the watched repository and tag posts to the webhook	You deploy to the staging slot, then issue the swap
Effect on the running app	App Service pulls the new image and serves the old one until the new one is ready	The webhook restarts the app, which then pulls the updated image	Instances are warmed in the source slot first, then routing switches
Validation before production traffic	None; the change goes straight to the live app	None; whatever was pushed to that tag is what starts	Full, on the slot's own hostname, and swap with preview adds a pause
Rollback	Point the app back at the previous image and wait for another pull	Push the previous image again, or turn continuous deployment off	Swap the same two slots back for the last known good app
Tier requirement	Any tier that runs custom containers	Any tier that runs custom containers	Standard, Premium, or Isolated
Container-specific catch	A stable tag can pull different content on a later restart or scale-out	Needs basic authentication publishing credentials enabled or the webhook gets 401	Auto swap is unsupported for containers, and managed identities do not swap

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