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Kubernetes 101 : Revisions, rollouts, updates and deployments


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To create a deployment of "nginx" pods, we use the below command:


To get the status of our deployment, we use the below command:


Updating the version of our image:

We could update the image of our "nginx" deployment to the "nginx:1.21" version using the below command:


Then, we recheck our rollout history using the below command:


To have a record in the "CHANGE-CAUSE" section, we would need to use the "--record" flag as below:


Then we could see the "--record" in the rollout history:


Rollbacks: 

when we rollback, we go back to the "before" state. 
If we want to go back to a certain revision as mentioned in the output of the "rollout history" command, we would need to mention the revision number, as below:

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