Enable service maps using service meshes
Enable application service maps based on the traffic between the workloads in Kubernetes by using Istio or Linkerd or service meshes as part of Kubernetes Visibility Agent (KVA) installation.
Before you begin
You must have a Prometheus server and provide the Prometheus URL.
Role required: discovery_admin.
About this task
If you use a service mesh, a pod running on every node (Informer) communicates with a Prometheus server to get the traffic information. For more information, see Install Kubernetes Visibility Agent (KVA) Informer
Procedure
- Set parameters either during Helm chart archive installation or by modifying the Kubernetes YAML file provided by ServiceNow.
| Method | Actions |
|---|---|
| During Helm installation | In the where <METHOD> is the URL for either Istio (http://prometheus.istio-system:9090) or Linkerd (http://prometheus.linkerd-viz:9090). Note: If your Prometheus server URL is not the default one, use the following parameter: |
Modify the k8s_informer.yaml script | 1. Access the `k8s_informer.yaml` script. 2. Set the environment variable *k8s\_informer.yaml* by entering either Istio or Linkerd in quotation marks: ``` -- name: GET_CONNECTIONS_METHOD value: "" ``` 3. Run the following command: ``` kubectl apply -f k8s_informer.yaml ``` |
What to do next
Create application service maps
Parent Topic:Enabling application service maps