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[App Service] az webapp deploy: Warm-up kudu before making ARM deployment#31083

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yanzhudd merged 5 commits intoAzure:devfrom
Shi1810:user/shikhajha/warmupkuduforarm
Mar 21, 2025
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[App Service] az webapp deploy: Warm-up kudu before making ARM deployment#31083
yanzhudd merged 5 commits intoAzure:devfrom
Shi1810:user/shikhajha/warmupkuduforarm

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@Shi1810 Shi1810 commented Mar 19, 2025

Related command
az webapp deploy

Description
Kudu cold-start has a timeout of 60 seconds in case of ARM endpoint, if kudu do not start within this time-interval, customers see timeout message.

The intension behind this PR is to warm-up kudu before making arm deployment.

Approach:

  1. The affinity cookie returned after warming-up Kudu contains instance id.
  2. using this warmed-up instance id, we make a request to modified ARM deployment endpoint - [/subscriptions/{subscription-id}/resourceGroups/{resource-group}/providers/Microsoft.Web/sites/{site-name}/instances/{instance-id}/extensions/onedeploy?api-version={api-version}].
  3. The feature is dependent on "enable-kudu-warmup" feature flag.

Screenshot:
az webapp deploy
image

Testing Guide
Deploying app using az webapp deploy with source url should work as expected.

History Notes

[App Service] az webapp deploy: Add --enable-kudu-warmup parameter to support warm-up Kudu before making deployment


This checklist is used to make sure that common guidelines for a pull request are followed.

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Hi @Shi1810,
Since the current milestone time is less than 7 days, this pr will be reviewed in the next milestone.

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azure-client-tools-bot-prd bot commented Mar 19, 2025

️✔️AzureCLI-BreakingChangeTest
️✔️Non Breaking Changes

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yonzhan commented Mar 19, 2025

Thank you for your contribution! We will review the pull request and get back to you soon.

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The git hooks are available for azure-cli and azure-cli-extensions repos. They could help you run required checks before creating the PR.

Please sync the latest code with latest dev branch (for azure-cli) or main branch (for azure-cli-extensions).
After that please run the following commands to enable git hooks:

pip install azdev --upgrade
azdev setup -c <your azure-cli repo path> -r <your azure-cli-extensions repo path>

@microsoft-github-policy-service microsoft-github-policy-service bot added the customer-reported Issues that are reported by GitHub users external to the Azure organization. label Mar 19, 2025
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Thank you for your contribution Shi1810! We will review the pull request and get back to you soon.

@microsoft-github-policy-service microsoft-github-policy-service bot added the Auto-Assign Auto assign by bot label Mar 19, 2025
@Shi1810 Shi1810 changed the title [App Service] az webapp deploy: Warm-up kudu before making arm deployment [App Service] az webapp deploy: Warm-up kudu before making ARM deployment Mar 19, 2025
@Shi1810 Shi1810 changed the title [App Service] az webapp deploy: Warm-up kudu before making ARM deployment [App Service] az webapp deploy: Warm-up kudu before making ARM deployment Mar 19, 2025
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/azp run

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Azure Pipelines successfully started running 3 pipeline(s).

@ShilpiRachna1
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@Shi1810 - changes look good! 🚢 it!!

@yanzhudd yanzhudd merged commit db4cc3c into Azure:dev Mar 21, 2025
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