[Appservice] az functionapp deployment source config-zip: Fix intermittent failure on flex consumption apps due to Kudu restart#33354
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…tus 6) as transient state Agent-Logs-Url: https://github.com/Azure/azure-cli/sessions/d22a7f98-aa7f-43a9-9e3e-a45c36c058b2 Co-authored-by: a0x1ab <59631311+a0x1ab@users.noreply.github.com>
Agent-Logs-Url: https://github.com/Azure/azure-cli/sessions/d22a7f98-aa7f-43a9-9e3e-a45c36c058b2 Co-authored-by: a0x1ab <59631311+a0x1ab@users.noreply.github.com>
…ent status check Agent-Logs-Url: https://github.com/Azure/azure-cli/sessions/d22a7f98-aa7f-43a9-9e3e-a45c36c058b2 Co-authored-by: a0x1ab <59631311+a0x1ab@users.noreply.github.com>
…ce only Agent-Logs-Url: https://github.com/Azure/azure-cli/sessions/d22a7f98-aa7f-43a9-9e3e-a45c36c058b2 Co-authored-by: a0x1ab <59631311+a0x1ab@users.noreply.github.com>
Agent-Logs-Url: https://github.com/Azure/azure-cli/sessions/d22a7f98-aa7f-43a9-9e3e-a45c36c058b2 Co-authored-by: a0x1ab <59631311+a0x1ab@users.noreply.github.com>
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[WIP] Fix inconsistent deployment failures for flex consumption function apps
[Appservice] May 12, 2026
az functionapp deployment source config-zip: Fix intermittent failure on flex consumption apps due to Kudu restart
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Flex consumption deployments intermittently fail with
"Deployment was partially successful"because the CLI treats deployment status 6 as a terminal error. Status 6 is actually a transient state: Kudu restarts after uploading the package to storage (normal for flex consumption), causing the[Kudu-SyncTriggerStep]to not yet complete when the CLI first polls.Changes to
_check_zip_deployment_status_flex(appservice/custom.py):kudu_restart_in_progress=True, 404 responses continue polling (Kudu is restarting) rather than breaking/raising; first occurrence logs aWARNING, subsequent ones log atINFOto reduce noisekudu_restart_in_progress=True(package was already uploaded to storage successfully)response.json()and.get('status')are now cached; 404 branches consolidated into a singleif/elif/elifblockTesting Guide
Unit tests added in
TestCheckZipDeploymentStatusFlexcovering the key polling sequences:History Notes
[Appservice]
az functionapp deployment source config-zip: Fix intermittent failure for flex consumption function apps when Kudu restarts after package deployment (status 6 treated as transient, not terminal)This checklist is used to make sure that common guidelines for a pull request are followed.
The PR title and description has followed the guideline in Submitting Pull Requests.
I adhere to the Command Guidelines.
I adhere to the Error Handling Guidelines.
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I tried to connect to the following addresses, but was blocked by firewall rules:
azcliprod.blob.core.windows.net/usr/bin/python python -m unittest azure.cli.command_modules.appservice.tests.latest.test_functionapp_commands_thru_mock.TestCheckZipDeploymentStatusFlex -v(dns block)If you need me to access, download, or install something from one of these locations, you can either: