Kubernetes Cookbook - Second Edition

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Taking Deployment update into consideration is a good step towards building a CI/CD (continuous integration and continuous delivery) pipeline. For a more common usage, developers don't exploit command lines to update the Deployment. They may prefer to fire some API calls from CI/CD platform, or update from a previous configuration file. Here comes an example working with the subcommand apply:

// A simple nginx Kubernetes configuration file$ cat my-update-nginx.yamlapiVersion: apps/v1kind: Deploymentmetadata:  name: my-update-nginxspec:  replicas: 5  selector:    matchLabels:      run: simple-nginx  template:    metadata:      labels:        run: simple-nginx    spec:      containers:      - name: simple-nginx        image: nginx        ports:        - containerPort: 80// create the ...