Locust Performs Distributed Load Testing

3. Create the Kubernetes deployment file

a. Locust Master Deployment Document：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: locust-master
spec:
  replicas: 1
  selector:
    matchLabels:
      app: locust
      role: master
  template:
    metadata:
      labels:
        app: locust
        role: master
    spec:
      containers:
        - name: locust-master
          image: my-locust-image
          command: ["locust", "--master"]
          ports:
            - containerPort: 8089
              name: http
            - containerPort: 5557
              name: communicate

b. Locust Worker deployment documents：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: locust-worker
spec:
  replicas: 3
  selector:
    matchLabels:
      app: locust
      role: worker
  template:
    metadata:
      labels:
        app: locust
        role: worker
    spec:
      containers:
        - name: locust-worker
          image: my-locust-image
          command: ["locust", "--worker", "--master-host=locust-master"]

c. Create Locust Master service file：

apiVersion: v1
kind: Service
metadata:
  name: locust-master
spec:
  ports:
    - port: 8089
      targetPort: 8089
      name: http
    - port: 5557
      targetPort: 5557
      name: communicate
  selector:
    app: locust
    role: master

4. Deploying to Kubernetes

Apply these Kubernetes configuration files to deploy Locust:

kubectl apply -f locust-master-
kubectl apply -f locust-worker-
kubectl apply -f

5. Access to the Locust Web interface

utilizationkubectl port-forward Expose the Locust Master service to access the Locust web interface:

kubectl port-forward service/locust-master 8089:8089

summarize

Locust is a powerful load testing tool that provides an easy-to-use Python scripting interface and real-time monitoring capabilities. Deploying Locust to Kubernetes enables large-scale load testing that capitalizes on the elasticity and scalability of Kubernetes. By including Locust test scripts in your Docker image, you simplify deployment and improve configuration consistency and ease of management. With Locust and Kubernetes, you can effectively test the performance of your system to ensure application stability and reliability under high load.