How was the service tested? How was it deployed in Kubernetes?

For testing the service in Go, I usually use unit testing with the testing package. I write tests for key functions, covering different scenarios, including edge cases and errors. For integration testing, you can set up a test environment using Docker Compose or use mock services.

For deployment in Kubernetes, I create Deployment and Service manifests describing the container with the service, the number of replicas, resource settings, and ports. I use ConfigMap and Secret for configurations and secrets. Deployment is performed via kubectl apply -f or with Helm charts for more complex configurations.

Example of a simple Deployment:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-go-service
spec:
  replicas: 3
  selector:
    matchLabels:
      app: my-go-service
  template:
    metadata:
      labels:
        app: my-go-service
    spec:
      containers:
      - name: my-go-service
        image: myregistry/my-go-service:latest
        ports:
        - containerPort: 8080

Tests in Go:

func TestCalculate(t *testing.T) {
    result := Calculate(2, 3)
    if result != 5 {
        t.Errorf("Expected 5, got %d", result)
    }
}