Add support for custom handlers in Linux consumption plans

When I am attempting to deploy using this Action the deployment always fails. The same build can be deployed with the func azure functionapp publish command without any issue.

There are two different errors based on whether the WEBSITE_RUN_FROM_PACKAGE configuration option is set or not. We are using a Linux consumption plan, so when set it points to a blob storage containing the latest deployment zip. Obviously this option will be set after the first deployment so it should work in both cases.

Log when WEBSITE_RUN_FROM_PACKAGE is set

Run Azure/functions-action@v1
  with:
    app-name: func-REDACTED-staging-01
    package: ./build
    publish-profile: ***
    respect-funcignore: true
    respect-pom-xml: false
    scm-do-build-during-deployment: false
    enable-oryx-build: false
Successfully parsed SCM credential from old publish-profile format.
Using SCM credential for authentication, GitHub Action will not perform resource validation.
Sucessfully acquired app settings from function app (with SCM credential)!
Warning: The .funcignore file does not exist in your path ./build. Nothing will be changed.
Warning: The .funcignore file shares the same format as .gitignore. You can use it to exclude files from deployment.
Will archive ./build into /home/runner/work/_temp/temp_web_package_8964073453852144.zip as function app content
Will use Kudu https://<scmsite>/api/zipdeploy to deploy since publish-profile is detected.
Setting SCM_DO_BUILD_DURING_DEPLOYMENT in Kudu container to false
Update using Client.updateAppSettingViaKudu
Response with status code 204
App setting SCM_DO_BUILD_DURING_DEPLOYMENT propagated to Kudu container
Setting ENABLE_ORYX_BUILD in Kudu container to false
Update using Client.updateAppSettingViaKudu
Response with status code 204
App setting ENABLE_ORYX_BUILD propagated to Kudu container
Package deployment using ZIP Deploy initiated.
Error: Failed to deploy web package to App Service.
Successfully updated deployment History at func-REDACTED-staging-01.scm.azurewebsites.net/api/deployments/b5026f1058de8a11fedc3d0ef30729628f1c08011621435576470
Error: Execution Exception (state: PublishContent) (step: Invocation)
Error:   When request Azure resource at PublishContent, zipDeploy : Failed to use /home/runner/work/_temp/temp_web_package_8964073453852144.zip as ZipDeploy content
Error:     Failed to deploy web package to App Service.
Not Found (CODE: 404)
Error:       Error: Failed to deploy web package to App Service.
Not Found (CODE: 404)
    at Kudu.<anonymous> (/home/runner/work/_actions/Azure/functions-action/v1/node_modules/azure-actions-appservice-rest/Kudu/azure-app-kudu-service.js:175:23)
    at Generator.throw (<anonymous>)
    at rejected (/home/runner/work/_actions/Azure/functions-action/v1/node_modules/azure-actions-appservice-rest/Kudu/azure-app-kudu-service.js:6:65)
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
Error: Deployment Failed!

Log when WEBSITE_RUN_FROM_PACKAGE is NOT set

Run Azure/functions-action@v1
  with:
    app-name: func-REDACTED-staging-01
    package: ./build
    publish-profile: ***
    respect-funcignore: true
    respect-pom-xml: false
    scm-do-build-during-deployment: false
    enable-oryx-build: false
Successfully parsed SCM credential from old publish-profile format.
Using SCM credential for authentication, GitHub Action will not perform resource validation.
Sucessfully acquired app settings from function app (with SCM credential)!
Warning: The .funcignore file does not exist in your path ./build. Nothing will be changed.
Warning: The .funcignore file shares the same format as .gitignore. You can use it to exclude files from deployment.
Will archive ./build into /home/runner/work/_temp/temp_web_package_7836364297632616.zip as function app content
Will use Kudu https://<scmsite>/api/zipdeploy to deploy since publish-profile is detected.
Error: Execution Exception (state: PublishContent) (step: Invocation)
Error:   When request Azure resource at PublishContent, zipDepoy : WEBSITE_RUN_FROM_PACKAGE in your function app is set to an URL. Please remove WEBSITE_RUN_FROM_PACKAGE app setting from your function app.
Error: Deployment Failed!

The relevant settings from the workflow file:

      - name: Deploy
        uses: Azure/functions-action@v1
        with:
          app-name: func-REDACTED-staging-01
          package: ./build
          publish-profile: ${{ secrets.STAGING_PUBLISH_PROFILE }}
          respect-funcignore: true

The structure of my build folder:

func1-v1/
  - function.json
  - handler.js
func2-v1/
  - function.json
  - handler.js
shared/
node_modules/
  - <all required prod dependencies preinstalled before calling deployment>
host.json
local.settings.json
package.json
package-lock.json

What next steps can we take to solve this issue?

[horihiro]

@ss185427 Please try to set WEBSITE_MOUNT_ENABLED to 0.

[ss185427]

Steps to reproduce -

• Create an Azure Function in Go using instructions from here.

• Deploy on a Linux Consumption plan with Azure Functions Core Tools (via Azure Functions VS Code extension).

• Deployment works fine and Function also runs as expected at this point.

• Setup deployment using GitHub Actions using functions-action@v1.4.0

• Deployment fails from GitHub Actions with message - Please remove WEBSITE_RUN_FROM_PACKAGE app setting from your function app.

• Remove WEBSITE_RUN_FROM_PACKAGE from Function App Configuration, the deployment now succeeds in GitHub Actions.

Check Azure Function -

Message
Error while assigning execute permission.
ExceptionMessage
Function not implemented [ENOSYS].
ExceptionType
Mono.Unix.UnixIOException

Message
Failed to start Worker Channel.
ExceptionMessage
Permission denied
ExceptionType
System.ComponentModel.Win32Exception