Lab
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.

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Path Info

Level

Beginner

Duration

1h 0m

Published

Jan 24, 2019

Challenge

Create a deployment for the store-products service with four replicas.

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

Challenge

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

Use kubectl exec to query the store-products service from the busybox testing pod.
```
kubectl exec busybox -- curl -s store-products
```

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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.