How to deploy azure functions app from azure devops correctly

Question

Deploying a java functions app from the console works fine with the command:

./mvnw azure-functions:deploy

But while trying to deploy from Azure devops, the functions wont work.
The functions appear on the Functions portal.

The status for every function is "Enabled"
The settings are the same as before.
So everything seems in order, but when I try to evoke a functions. the response is 500 internal server error.

the yaml to buld the artifact

trigger:
- master

pool:
  vmImage: ubuntu-latest

steps:
- task: JavaToolInstaller@0
  displayName: 'JavaToolInstaller Java version 17 '
  inputs:
    versionSpec: '17'
    jdkArchitectureOption: 'x64'
    jdkSourceOption: 'PreInstalled'
- task: Maven@3
  displayName: 'Maven Build and Package'
  inputs:
    mavenPomFile: 'pom.xml'
    goals: 'clean package'
    options: '-DskipTests' # Optional, to skip tests

- task: Maven@3
  displayName: 'Azure Functions Package'
  inputs:
    mavenPomFile: 'pom.xml'
    goals: 'azure-functions:package'
    options: '' 

- task: CopyFiles@2
  displayName: 'Copy Files to: $(build.artifactstagingdirectory)'
  inputs:
    SourceFolder: '$(system.defaultworkingdirectory)'
    Contents: '**/azure-functions/**'     
    TargetFolder: '$(build.artifactstagingdirectory)'
  condition: succeededOrFailed()

- task: ArchiveFiles@2
  displayName: 'Archive $(Build.ArtifactStagingDirectory)/target/azure-functions/f-app-v2'
  inputs:
    rootFolderOrFile: '$(Build.ArtifactStagingDirectory)/target/azure-functions/f-app-v2'
    includeRootFolder: false

- task: PublishBuildArtifacts@1
  displayName: 'Publish Artifact: drop'
  inputs:
    PathtoPublish: '$(build.artifactstagingdirectory)'
  condition: succeededOrFailed()

Answer 1

@Stefan Szekely Welcome to Microsoft Q&A! Thanks for posting the question.
.
Since deploying from the console works fine and the issue occurs only while deploying from Devops, this needs to be troubleshooted from Devops standpoint.
.
Please note that, DevOps is currently not supported in the Q&A forums, the supported products are listed over here https://learn.microsoft.com/en-us/answers/products (more to be added later on).
.
You can ask the experts in the dedicated forum over here:
https://stackoverflow.com/questions/tagged/devops https://developercommunity.visualstudio.com/spaces/21/index.html

Hope this helps.

**
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