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We have an AWS Elasticsearch domain we created through CloudFormation running version 6.3 of ES. When we update the ElasticsearchVersion property in the template, it replaces the Elasticsearch domain with a new one running the new version instead of updating the existing one.
How does anyone upgrade their Elasticsearch domains that were deployed with CF if it doesn't do an in-place upgrade? I am almost thinking at this point I need to create and manage my ES domains through boto3.
Any insight or ideas would be greatly appreciated.
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Update with No Interruption. AWS CloudFormation updates the resource without disrupting operation of that resource and without changing the resource's physical ID. For example, if you update certain properties on an AWS::CloudTrail::Trail resource, AWS CloudFormation updates the trail without disruption.
To update a AWS CloudFormation stack (console)In the AWS CloudFormation console , from the list of stacks, select the running stack that you want to update. In the stack details pane, choose Update. If you haven't modified the stack template, select Use current template, and then choose Next.
AWS CloudFormation provides two methods for updating stacks: direct update or creating and executing change sets. When you directly update a stack, you submit changes and AWS CloudFormation immediately deploys them. Use direct updates when you want to quickly deploy your updates.
This is now possible (as of 25/11/2019) by setting an UpdatePolicy with EnableVersionUpgrade: True.
For example:
ElasticSearchDomain:
Type: AWS::Elasticsearch::Domain
Properties: ...
UpdatePolicy:
EnableVersionUpgrade: true
https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-updatepolicy.html#cfn-attributes-updatepolicy-upgradeelasticsearchdomain
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