Kubernetes Deployment for App Deployment

Deploy Applications with Kubernetes Deployments

How to Deploy Apps Using Kubernetes Deployments

Tasks

• Create a deployment named httpd.

• Deploy the application httpd.

• Use the image httpd:latest (make sure to specify the tag).

Steps

1. Make yaml file or you can try EOF. Personally I like using EOF. (Alternatively, you can try vim/ nano anything.

    cat > httpd-deployment.yaml <<EOF
    apiVersion: apps/v1
    kind: Deployment
    metadata:
      name: httpd
    spec:
      replicas: 1
      selector:
        matchLabels:
          app: httpd
      template:
        metadata:
          labels:
            app: httpd
        spec:
          containers:
          - name: httpd-container
            image: httpd:latest
    EOF

   
2. Now apply the yaml file

    kubectl apply -f httpd-deployment.yaml

   
3. Apply the deployment with the following command:

    kubectl apply -f httpd-deployment.yaml

   
4. To check if the deployment is created, run:

    kubectl get deployments

   
5. To make sure to specify the tag (latest)

   • As we already have deployment named httpd.

    kubectl describe deployment httpd

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