azure-appservice-insights-not-enabled: Azure App Service Application Insights Not Enabled

id: azure-appservice-insights-not-enabled
info:
  name: Azure App Service Application Insights Not Enabled
  author: princechaddha
  severity: medium
  description: |
    Ensure that the Application Insights feature is enabled for all your Microsoft Azure App Services applications in order to provide advanced application monitoring. Application Insights is an extensible Application Performance Management (APM) service for developers and DevOps professionals available as monitoring feature within Azure cloud. The feature monitors your live App Services applications to automatically detect performance anomalies. It includes powerful analytics tools to help diagnose issues and understand what users do with your application. Application Insights can be enabled for apps on various platforms including .NET, Node.js, and Java EE, hosted on-premises, hybrid, or other public cloud platforms.
  impact: |
    Not enabling Application Insights may lead to a lack of vital application performance data and missed opportunities for optimizing application responsiveness and troubleshooting issues.
  remediation: |
    Enable Application Insights for Azure App Services applications through the Azure portal or by using the Azure CLI to ensure comprehensive monitoring and management of application performance.
  reference:
    - https://docs.microsoft.com/en-us/azure/azure-monitor/app/app-insights-overview
  tags: cloud,devops,azure,microsoft,application-insights,azure-cloud-config

flow: |
  code(1);
  for (let AppServiceData of iterate(template.appServiceList)) {
    AppServiceData = JSON.parse(AppServiceData);
    set("name", AppServiceData.name);
    set("resourceGroup", AppServiceData.resourceGroup);
    code(2);
  }

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      az webapp list --output json --query '[*].{name:name, resourceGroup:resourceGroup}'

    extractors:
      - type: json
        name: appServiceList
        internal: true
        json:
          - '.[]'

  - engine:
      - sh
      - bash
    source: |
      az webapp config appsettings list --name $name --resource-group $resourceGroup --output json

    matchers:
      - type: word
        words:
          - "APPLICATIONINSIGHTS_CONNECTION_STRING"
          - "APPINSIGHTS_INSTRUMENTATIONKEY"
        condition: and
        negative: true

    extractors:
      - type: dsl
        dsl:
          - 'name + " in " + resourceGroup + " does not have Application Insights enabled"'
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