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Creating a Zero-Downtime Deployment

Creating a Zero-Downtime Deployment

In this lesson, we will create a zero-downtime deployment using the file defined in the previous lesson.

Creating Deployment

Before we explore rolling updates, we should create the Deployment and, with it, the first release of our application.

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kubectl create \
    -f deploy/go-demo-2-api.yml \
    --record
kubectl get -f deploy/go-demo-2-api.yml

We created the Deployment and retrieved the object from the Kubernetes API server.

The output of the latter command is as follows.

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NAME          DESIRED  UP-TO-DATE AVAILABLE AGE
go-demo-2-api 3             3          3         1m

Please make sure that the number of available Pods is 3. Wait for a few moments, if that’s not the case. Once all the Pods are up-and-running, we’ll have a Deployment that created a new ReplicaSet which, in turn, created three Pods based on the latest release of the ...

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