Quick docs on running locally.

Author: Tsonov

README.md

@@ -67,6 +67,9 @@ Option 1. Deploy controller in Kind cluster.
     --set clusterID="your-cluster-id" | kubectl apply -f - -n castai-agent
   ```
 
+### Load tests
+See [docs](loadtest/README.md)
+
 ## Community
 
 - [Twitter](https://twitter.com/cast_ai)

loadtest/README.md

@@ -0,0 +1,28 @@
+# Load testing Cluster controller
+
+Load test requires 3 components:
+- Test server that simulates cluster-hub and the scenarios. 
+- Kwok controller to simulate nodes/pods
+- Cluster controller itself.
+
+Right now this is extremely basic and you have to run those manually locally.
+
+Start kwok:
+```
+ kwok --kubeconfig=~/.kube/config \
+    --manage-all-nodes=false \
+    --manage-nodes-with-annotation-selector=kwok.x-k8s.io/node=fake-node \
+    --node-lease-duration-seconds=40 \
+    --cidr=10.0.0.1/24 \
+    --node-ip=10.0.0.1
+```
+
+Run the test server on port 8080 against your current kubeconfig context:
+```
+KUBECONFIG=~/.kube/config PORT=8080 go run . test-server
+```
+
+After starting, start cluster controller with some dummy values and point it to the test server:
+```
+API_KEY=dummy API_URL=http://localhost:8080 CLUSTER_ID=D30A163C-C5DF-4CC8-985C-D1449398295E KUBECONFIG=~/.kube/config LOG_LEVEL=4 LEADER_ELECTION_NAMESPACE=default METRICS_ENABLED=true go run .                     
+```