Shulou(Shulou.com)06/01 Report--

Today, I will talk to you about how to run applications with Deployment. Many people may not know much about it. In order to make you understand better, the editor summed up the following content for you. I hope you can get something from this article.

Deployment

As we learned earlier, Kubernetes manages the lifecycle of Pod through a variety of Controller. In order to meet different business scenarios, Kubernetes has developed a variety of Controller, such as Deployment, ReplicaSet, DaemonSet, StatefuleSet, Job and so on. Let's first learn the most commonly used Deployment.

Starting with the example, run a Deployment:

Kubectl run nginx-deployment-image=nginx:1.7.9-replicas=2

The above command deploys a Deployment nginx-deployment with two copies, and the container's image is nginx:1.7.9.

The following is a detailed analysis of what Kubernetes has done.

The kubectl get deployment command can view the status of the nginx-deployment, and the output shows that the two copies are running normally.

Next let's use kubectl describe deployment for more detailed information.

The two copies are ready, use kubectl describe replicaset to view the details:

Both copies of the Pod are in the Running state, use kubectl describe pod to view more detailed information:

As you can see from the image above, the object is named as follows: the name of the child object = the name of the parent object + a random string or number.

Here we create the Deployment through kubectl run.

After reading the above, do you have any further understanding of how to run applications with Deployment? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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