Add continuous monitoring to your release pipeline
Azure Pipelines integrates with Application Insights to allow continuous monitoring of your Azure DevOps release pipeline throughout the software development lifecycle.
With continuous monitoring, release pipelines can incorporate monitoring data from Application Insights and other Azure resources. When the release pipeline detects an Application Insights alert, the pipeline can gate or roll back the deployment until the alert is resolved. If all checks pass, deployments can proceed automatically from test all the way to production, without the need for manual intervention.
Configure continuous monitoring
In Azure DevOps, select an organization and project.
On the left menu of the project page, select Pipelines > Releases.
Select the dropdown arrow next to New and select New release pipeline. Or, if you don't have a pipeline yet, select New pipeline on the page that appears.
On the Select a template pane, search for and select Azure App Service deployment with continuous monitoring, and then select Apply.
In the Stage 1 box, select the hyperlink to View stage tasks.
In the Stage 1 configuration pane, fill in the following fields:
Parameter Value Stage name Provide a stage name or leave it at Stage 1. Azure subscription Select the dropdown arrow and select the linked Azure subscription you want to use. App type Select the dropdown arrow and select your app type. App Service name Enter the name of your Azure App Service. Resource Group name for Application Insights Select the dropdown arrow and select the resource group you want to use. Application Insights resource name Select the dropdown arrow and select the Application Insights resource for the resource group you selected.
To save the pipeline with default alert rule settings, select Save in the upper-right corner of the Azure DevOps window. Enter a descriptive comment and select OK.
Modify alert rules
Out of the box, the Azure App Service deployment with continuous monitoring template has four alert rules: Availability, Failed requests, Server response time, and Server exceptions. You can add more rules or change the rule settings to meet your service level needs.
To modify alert rule settings:
In the left pane of the release pipeline page, select Configure Application Insights Alerts.
The four default alert rules are created via an Inline script:
$subscription = az account show --query "id";$subscription.Trim("`"");$resource="/subscriptions/$subscription/resourcegroups/"+"$(Parameters.AppInsightsResourceGroupName)"+"/providers/microsoft.insights/components/" + "$(Parameters.ApplicationInsightsResourceName)"; az monitor metrics alert create -n 'Availability_$(Release.DefinitionName)' -g $(Parameters.AppInsightsResourceGroupName) --scopes $resource --condition 'avg availabilityResults/availabilityPercentage < 99' --description "created from Azure DevOps"; az monitor metrics alert create -n 'FailedRequests_$(Release.DefinitionName)' -g $(Parameters.AppInsightsResourceGroupName) --scopes $resource --condition 'count requests/failed > 5' --description "created from Azure DevOps"; az monitor metrics alert create -n 'ServerResponseTime_$(Release.DefinitionName)' -g $(Parameters.AppInsightsResourceGroupName) --scopes $resource --condition 'avg requests/duration > 5' --description "created from Azure DevOps"; az monitor metrics alert create -n 'ServerExceptions_$(Release.DefinitionName)' -g $(Parameters.AppInsightsResourceGroupName) --scopes $resource --condition 'count exceptions/server > 5' --description "created from Azure DevOps";
You can modify the script and add more alert rules. You can also modify the alert conditions. And you can remove alert rules that don't make sense for your deployment purposes.
Add deployment conditions
When you add deployment gates to your release pipeline, an alert that exceeds the thresholds you set prevents unwanted release promotion. After you resolve the alert, the deployment can proceed automatically.
To add deployment gates:
On the main pipeline page, under Stages, select the Pre-deployment conditions or Post-deployment conditions symbol, depending on which stage needs a continuous monitoring gate.
In the Pre-deployment conditions configuration pane, set Gates to Enabled.
Next to Deployment gates, select Add.
Select Query Azure Monitor alerts from the dropdown menu. This option lets you access both Azure Monitor and Application Insights alerts.
Under Evaluation options, enter the values you want for settings like The time between re-evaluation of gates and The timeout after which gates fail.
View release logs
You can see deployment gate behavior and other release steps in the release logs. To open the logs:
Select Releases from the left menu of the pipeline page.
Select any release.
Under Stages, select any stage to view a release summary.
To view logs, select View logs in the release summary, select the Succeeded or Failed hyperlink in any stage, or hover over any stage and select Logs.
For more information about Azure Pipelines, see the Azure Pipelines documentation.
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