How to automatically restart an app service after certain time?

Question

How to automatically restart an app service after 24 hours? How to schedule the app service to restart automatically at a specific time through the use of web jobs?

Answer 1

We also could do that with Azure Rest API. About how to get access token please refer to azure document.

POST /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Web/sites/{name}/restart?api-version=2016-08-01&softRestart&synchronous={softRestart&synchronous}

The following file types are accepted by WebJob:

.cmd, .bat, .exe (using windows cmd)

.ps1 (using powershell)

.sh (using bash)

.php (using php)

.py (using python)

.js (using node)

.jar (using java)

If C# is possible, there is a example using .Net library.

Answer 2

You can achieve this by creating a web job and placing a PowerShell script to stop and start the web app.

To perform start/stop operation of Azure App Service, the web job should have access to your subscription. It also requires your Azure profile.

Login-AzureRmAccount
Save-AzureRmProfile -Path "E:\azureprofile.json"

To Create PowerShell to stop/start App Service

Create a new folder and place the publish profile downloaded in previous step.

Create a PowerShell and save as run.ps1

$ProgressPreference= "SilentlyContinue"
Select-AzureRmProfile -Path "azureprofile.json"
Select-AzureRmSubscription -SubscriptionId '<subscriptionId>'
Stop-AzureRmWebApp -Name '<AppService-Name>' -ResourceGroupName '<Resource-Group-Name>'
Start-AzureRmWebApp -Name '<AppService-Name>' -ResourceGroupName '<Resource-Group-Name>'

Add this in your App service web job section and run based on your requirement by creating a cron expression.

Reference: Azure App Services: Automate Application restart using Web Job

Answer 3

Save-AzureRmProfile -Path "E:\azureprofile.json" returns an error but the command Save-AzureRmContext-Path "C:\script.json" gives the same output as that of of the Save-AzureRmProfile -Path "E:\azureprofile.json".

Answer 4

You can also do this using LogicApps or RunBooks. Here is an example that uses Logic Apps: https://blog.aggregatedintelligence.com/2020/01/restarting-web-app-using-logic-apps.html

Basically, you create a trigger, and then you add a "Azure RM Invoke Action". The settings needed arent well documented, so I documented it in my blog post. This is basically the simplest way to make sure it happens on a schedule and brings together what has been previously discussed with regards to the REST API (the Azure RM action is using it under the covers), web-job (dont need to create one, as LogicApp will run it for you).