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Monday, February 4, 2019

[Solved] Unable to create a new revision of Task Definition prod-not******:2 Docker label key owner contains invalid characters, does not match pattern ^[_\-a-zA-Z0-9.]+$

If you are getting the below error while updating the AWS ECS service

Unable to create a new revision of Task Definition prod-not****:2
Docker label key owner contains invalid characters, does not match pattern ^[_\-a-zA-Z0-9.]+$

Solution:-
In my case although the key value for the docker label appears to be correct there was an extra space in the key towards the end due to which i was not able to update key value and since it was not matching the regex which AWS has implemented on its end to verify the content , the ecs service was not allowing to update the configuration.

So check you don't have extra spaces and your labels are matching the regex which AWS Ecs service allows.

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