How Kubernetes Helps You Land an Automation Tester Job Faster

# Check what is running in the test namespace
kubectl get pods -n qa
kubectl get deployments -n qa
kubectl get svc -n qa

# Scale browser nodes for a big regression run
kubectl scale deployment chrome-node --replicas=4 -n qa

# A test pod failed — find out why
kubectl describe pod <pod-name> -n qa     # events, image pull errors
kubectl logs <pod-name> -n qa             # test output
kubectl logs <pod-name> -n qa --previous  # logs from the crashed run
kubectl get events -n qa --sort-by=.metadata.creationTimestamp

apiVersion: apps/v1
kind: Deployment
metadata:
  name: selenium-hub
  namespace: qa
spec:
  replicas: 1
  selector:
    matchLabels: { app: selenium-hub }
  template:
    metadata:
      labels: { app: selenium-hub }
    spec:
      containers:
        - name: hub
          image: selenium/hub:4.25.0
          ports:
            - containerPort: 4442
            - containerPort: 4443
            - containerPort: 4444
---
apiVersion: v1
kind: Service
metadata:
  name: selenium-hub
  namespace: qa
spec:
  selector: { app: selenium-hub }
  ports:
    - { name: web, port: 4444 }
    - { name: publish, port: 4442 }
    - { name: subscribe, port: 4443 }

# Python + Selenium 4: run the test on the Grid inside the cluster
from selenium import webdriver

options = webdriver.ChromeOptions()
driver = webdriver.Remote(
    command_executor="http://selenium-hub.qa:4444/wd/hub",
    options=options,
)
driver.get("https://example.com")
assert "Example Domain" in driver.title
driver.quit()

apiVersion: batch/v1
kind: Job
metadata:
  name: regression-suite
  namespace: qa
spec:
  backoffLimit: 0
  ttlSecondsAfterFinished: 3600
  template:
    spec:
      restartPolicy: Never
      containers:
        - name: tests
          image: myrepo/ui-tests:latest
          command: ["pytest", "tests/", "--junitxml=/reports/result.xml"]
          env:
            - name: GRID_URL
              value: http://selenium-hub.qa:4444/wd/hub

kubectl apply -f test-job.yaml
kubectl wait --for=condition=complete job/regression-suite -n qa --timeout=20m
kubectl logs job/regression-suite -n qa

apiVersion: apps/v1
kind: Deployment
metadata:
  name: chrome-node
  namespace: qa
spec:
  replicas: 2
  selector:
    matchLabels: { app: chrome-node }
  template:
    metadata:
      labels: { app: chrome-node }
    spec:
      containers:
        - name: chrome
          image: selenium/node-chrome:4.25.0
          env:
            - { name: SE_EVENT_BUS_HOST, value: selenium-hub }
            - { name: SE_EVENT_BUS_PUBLISH_PORT, value: "4442" }
            - { name: SE_EVENT_BUS_SUBSCRIBE_PORT, value: "4443" }
          resources:
            limits: { memory: "2Gi", cpu: "1" }

FROM python:3.12-slim
WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
COPY tests/ tests/
CMD ["pytest", "tests/", "-n", "4"]

README outline
1. What this repo shows: UI tests running on Selenium Grid in Kubernetes
2. Tools: Python, pytest, Selenium 4, Docker, kind or minikube
3. How to run locally:
   kind create cluster
   kubectl create namespace qa
   kubectl apply -f k8s/
4. Scaling demo: suite time with 1 node vs 4 nodes
5. What I learned and what I would improve