You have an Azure Container Registry and an Azure container instance.
You pull an image from the registry, and then update the local copy of the image.
You need to ensure that the updated image can be deployed to the container instance. The solution must ensure that you can deploy the updated image or the previous version of the image.
What should you do?
Click on the arrows to vote for the correct answer
A. B. C. D.A
The command 'docker image push' pushes an image or a repository to a registry.
Incorrect Answers:
B: az image copy -
Copies a managed image (or vm) to other regions.
--tags
C: az aks update -
Updates a managed Kubernetes cluster.
D: Kubectl apply -
apply manages applications through files defining Kubernetes resources. It creates and updates resources in a cluster through running kubectl apply. This is the recommended way of managing Kubernetes applications on production.
https://docs.docker.com/engine/reference/commandline/image_push/ https://docs.microsoft.com/en-us/cli/azure/ext/image-copy-extension/image https://docs.microsoft.com/en-us/cli/azure/aks https://kubernetes.io/docs/reference/kubectl/cheatsheet/#kubectl-applyThe correct answer is A. Run the docker image push command and specify the tag parameter.
Explanation: To deploy the updated image or the previous version of the image to the container instance, you need to push the updated image to the container registry with a different tag and deploy the image with the tag you want.
The steps to deploy the updated image to the container instance are:
Pull the image from the container registry using the docker pull command. For example, docker pull myregistry.azurecr.io/myimage:tag1.
Update the image as required.
Tag the updated image with a new tag using the docker tag command. For example, docker tag myregistry.azurecr.io/myimage:tag1 myregistry.azurecr.io/myimage:tag2.
Push the updated image with the new tag to the container registry using the docker push command. For example, docker push myregistry.azurecr.io/myimage:tag2.
Deploy the updated image or the previous version of the image to the container instance using the tag you want. For example, az container create --resource-group myResourceGroup --name mycontainer --image myregistry.azurecr.io/myimage:tag2 --dns-name-label mycontainer --ports 80.
Option B is incorrect because the az image copy command is used to copy a custom managed image from one region to another.
Option C is incorrect because the az aks update command is used to update an Azure Kubernetes Service (AKS) cluster.
Option D is incorrect because the kubectl apply command is used to apply a configuration to a Kubernetes cluster. The dry-run parameter is used to simulate the application of the configuration.