Configure multiple Contrail API workers

TechPreview

Tungsten Fabric MOSK deployments use six workers of the contrail-api service by default. This section instructs you on how to change the default configuration if needed.

To configure the number of Contrail API workers on a TF deployment:

1. Specify the required number of workers in the TFOperator custom resource:

   API v2 Available since MOSK 24.1

   spec:
    features:
      config:
        configApiWorkerCount: 7
   

   API v1alpha1 Removed in MOSK 25.1

   spec:
     controllers:
       tf-config:
         api:
           containers:
           - env:
             - name: CONFIG_API_WORKER_COUNT
               value: "7"
             name: api
   

2. Wait until all tf-config-* pods are restarted.

3. Verify the number of workers inside the running API container:

   kubectl -n tf exec -ti tf-config-rclzq -c api -- ps aux --width 500
   kubectl -n tf exec -ti tf-config-rclzq -c api -- ls /etc/contrail/
   

   Verify that the ps output lists one API process with PID "1" and the number of workers set in the TFOperator custom resource.

4. In /etc/contrail/, verify that the number of configuration files contrail-api-X.conf matches the number of workers set in the TFOperator custom resource.