How to Sync an Azure AppService git based from Powershell script?

Question

I have an Azure AppService (Web-Site microservice) created from an ARM template. It contains a drupal app. I have configured it to read from a git server in bitbucket. When I create for first time it sucessfully pull the files from bitbucket (master branch). All good :-) The App Service is created from a PowerShell script that uses ARM templates launched from Jenkins project. The project is called ReCreateXXXAppService and executes a PowerShell that detects if AppService is there, delete it if that is the case, and deploy it again.

This is the summary of my code around New-AzureRmResourceGroupDeployment:

    $repoUrl = "https://"+$AppServiceUsername+":"+$AppServicePassword+"@bitbucket.org/XXX/as-cms.git"
    $params = @{siteName=$AppServiceName ; hostingPlanName="$($AppServiceName)-HP"; siteLocation=$AppServiceLocationName; repoUrl=$repoUrl; branch="master";}
    $templateFile = Join-Path $scriptDir "templates\$TemplateName"
    Write-Host "Using template file $TemplateFile"
    New-AzureRmResourceGroupDeployment -Mode Complete -Force -TemplateParameterObject $params -Name "$($AppServiceName)-dn" -ResourceGroupName $azureResourceGroupName -TemplateFile $templateFile

When I change something in master branch I have two options:

1. Automated: Execute RecreateXXXAppService again in Jenkins, wait around 1-2 mins (while App Service is detected, deleted and created) and I have the change deployed.
2. Manually: Go to azure portal, select App Service, Continuous Deployment and click Sync. It takes 15-20 secs only. (Check screenshot)

My question is:

How can I automate from PowerShell the equivalent of clicking "Sync" button?

NOTE1: There is a similar question here, with no answer.

NOTE2: The template part for source control creation is this one:

      {
          "apiVersion": "2014-04-01",
          "name": "web",
          "type": "sourcecontrols",
          "dependsOn": [
            "[resourceId('Microsoft.Web/Sites', parameters('siteName'))]",
            "[concat('Microsoft.Web/Sites/', parameters('siteName'), '/config/web')]"
          ],
          "properties": {
            "RepoUrl": "[parameters('repoUrl')]",
            "branch": "[parameters('branch')]",
            "IsManualIntegration": true
          }
        }

NOTE3: I tried @MichaelB answer with no luck. It seems working but doesn't update the files. Output is

Name              : as-xxxx-dev01
ResourceId        : /subscriptions/a303bbb8-8c07-wq10-8a6a-6c1eceef81bb/resourceGroups/as-rg-xxxx-EUN-DEV01/providers/Microsoft.Web/sites/as-cms-dev01/sourcecontrols/web
ResourceName      : as-xxxx-dev01/web
ResourceType      : Microsoft.Web/sites/sourcecontrols
ResourceGroupName : as-rg-xxxx-EUN-DEV01
Location          : North Europe
SubscriptionId    : a303ibb8-7i77-41d0-8a2s-6c1aaaaf81aa
Tags              : {System.Collections.Hashtable}
Properties        : @{RepoUrl=https://deployments:*******@bitbucket.org/project/as-xxxx.git; Branch=master; IsManualIntegration=False; DeploymentRollbackEnabled=False; 
                    IsMercurial=False; ProvisioningState=Succeeded}

Answer 1

Having just come across a similar situation myself, it seems this is the solution (or at least, a solution)

If you initially delete the repo, and then re-add it, it will - obviously - force a resync.

Remove-AzureRmResource -ResourceGroupName $AppServiceResourceGroupName `
                -ResourceType Microsoft.Web/sites/SourceControls `
                -Name $AppServiceWebAppName/Web `
                -ApiVersion 2015-08-01 `
                -Force


$props = @{
    RepoUrl = "https://github.com/{account}/{repo}"
    Branch = "master"
    isManualIntegration = "false" 
}
########## -- Configure Source Control --##########
New-AzureRmResource -ResourceGroupName $AppServiceResourceGroupName `
                -ResourceType Microsoft.Web/sites/SourceControls `
                -Name $AppServiceWebAppName/Web `
                -PropertyObject $props `
                -ApiVersion 2015-08-01 `
                -Force