- A Cloud Guru
Deploying a Simple Service to Kubernetes
Deployments and services are at the core of what makes Kubernetes a great way to manage complex application infrastructures. In this hands-on lab, you will have an opportunity to get hands-on with a Kubernetes cluster and build a simple deployment, coupled with a service providing access to it. You will create a deployment and a service which can be accessed by other pods in the cluster.
Table of Contents
Create a deployment for the store-products service with four replicas.
Log in to the Kube master node.
Create the deployment with four replicas:
cat << EOF | kubectl apply -f - apiVersion: apps/v1 kind: Deployment metadata: name: store-products labels: app: store-products spec: replicas: 4 selector: matchLabels: app: store-products template: metadata: labels: app: store-products spec: containers: - name: store-products image: linuxacademycontent/store-products:1.0.0 ports: - containerPort: 80 EOF
Create a store-products service and verify that you can access it from the busybox testing pod.
Create a service for the store-products pods:
cat << EOF | kubectl apply -f - kind: Service apiVersion: v1 metadata: name: store-products spec: selector: app: store-products ports: - protocol: TCP port: 80 targetPort: 80 EOF
Make sure the service is up in the cluster:
kubectl get svc store-products
The output will look something like this:
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE store-products ClusterIP 10.104.11.230 <none> 80/TCP 59s
kubectl execto query the store-products service from the busybox testing pod.
kubectl exec busybox -- curl -s store-products
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.