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Adding APM Insight .NET agent in Kubernetes via InitContainers

The below steps will guide you through the process of integrating the APM Insight .NET agent into your Kubernetes deployment using init containers. 

  1. Create a secret for the Site24x7 license key in your application namespace. Note
    kubectl create secret generic s247licensekey --fromliteral=S247_LICENSE_KEY=YOUR_LICENSE_KEY_HERE
    Note

    Replace YOUR_LICENSE_KEY_HERE with the appropriate license key value from the Site24x7 client. 

  1. Create an empty volume mount that will be used to copy the agent files during the InitContainers process.

    Example:

    volumeMounts: 
          - name: s247dotnetcoreagent
  1. Include the following InitContainers command and mount the volume in both initContainer and your application container in your helm chart/deployment YAML file:
    kind: Deployment
    spec:
      containers:
      - name: dotnet-app
        image: microsoft/dotnet-samples:aspnetapp
        volumeMounts:
        - mountPath: /home/APMDotNetAgent
          name: s247dotnetcoreagent
      initContainers:
      - name: init-site24x7-agent
        image: site24x7/apminsight-dotnetagent:latest
        command: ['cp', '-r', '/opt/site24x7/APMDotNetAgent', '/home'
        volumeMounts:
        - name: s247dotnetcoreagent
        mountPath: /home/APMDotNetAgent
  1. Add the following environment variables to application containers.
    spec:
      containers:
      - name: dotnet-app
        env:
        - name: S247_LICENSE_KEY
          valueFrom:
            secretKeyRef:
              name: s247licensekey
              key: S247_LICENSE_KEY
        - name: CORECLR_ENABLE_PROFILING
          value: "1"
        - name: CORECLR_PROFILER
          value: "{9D363A5F-ED5F-4AAC-B456-75AFFA6AA0C8}"
        - name: CORECLR_SITE24X7_HOME
          value: "/home/APMDotNetAgent"
        - name: CORECLR_PROFILER_PATH_64
          value: "/home/APMDotNetAgent/x64/libClrProfilerAgent.so"
        - name: CORECLR_PROFILER_PATH_32
          value: "/home/APMDotNetAgent/x86/libClrProfilerAgent.so"
        - name: DOTNET_STARTUP_HOOKS
          value:
    "/home/APMDotNetAgent/netstandard2.0/DotNetAgent.Loader.dll"
        - name: MANAGEENGINE_COMMUNICATION_MODE
          value: "direct"
        - name: SITE24X7_APP_NAME
          value: "YOUR_APM_APPLICATION_NAME"
    ...

    Note

    Replace your application name with YOUR_APM_APPLICATION_NAME value.

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