The development team has deployed multiple deployment versions using AWS CodeDeploy. One of the Deployment sessions with overwrite content option has failed. You need to immediately roll back to the previously working application version with all the necessary files required for the application. Which of the following options is most suited to meet this requirement?

Answer options:

A.Automatically rollback to the last known application version & manually add files required for application revision.
B.Manually rollback to previous deployment phase & add files required for application revision.
C.Automatically rollback to the last known application version which will add files required for application revision.
D.Manually rollback to the last known application version which will add files required for application revision.

Correct Answer – A
When there is a deployment phase with a content overwrite option as “Overwrite”, it will delete all files from the previous deployment session. If this deployment fails, to restore to the previous working deployment, either Manual or Automatic rollback must be enabled. Also, deleted files as a part of the failed deployment phase need to be added manually.
Option B is incorrect as Manually Rollback must be done to the previous working application version & not to a previous failed version.
Option C is incorrect as Automatic Rollback will deploy a new version but will not copy files that are deleted by the previous deployment.
Option D is incorrect as Manually Rollback will deploy a new version but will not copy files that are deleted by the previous deployment.
For more information on AWS CodeDeploy Rollbacks, refer to the following URL-
https://docs.aws.amazon.com/codedeploy/latest/userguide/deployments-rollback-and-redeploy.html#deployments-rollback-and-redeploy-content-options