Updating Azure function Code Automatically

Question

What's the best way to upload updated code to a Azure Function app? I basically want to cron uploading new, updated code on a nightly basis. I imagine there's some CLI method I'm simply unaware of? I can't seem to find the answer to this.

Answer 1

once you have zip package with published Azure functions which can be automated quite easy as well, you may use zipdeploy Kudu API in order to upload it to your Azure function app:

    $kuduApiAuthorisationToken = Execute-WithRetry -SleepTime 10 { Get-Kudu-Api-Authorisation-Header-Value $RG $webAppName }

    $kuduApiUrl = "https://$webAppName.scm.azurewebsites.net/api/zipdeploy"

    Execute-WithRetry -SleepTime 10 {
        Invoke-RestMethod -Uri $kuduApiUrl `
            -Headers @{"Authorization"=$kuduApiAuthorisationToken;"If-Match"="*"} `
            -Method POST `
            -InFile $localPath `
            -ContentType "multipart/form-data" | Out-Null

More information can be found e.g. here: Interacting with Azure Web Apps Virtual File System using PowerShell and the Kudu API.

Answer 2

The recommended way would be to maintain your function code using git (or any version control) and setup continuous deployment or better yet, leverage Azure Pipelines or GitHub Actions.