Can an Elastic Beanstalk environment be healthy if the domain join fails?
Yes. AWS says a failed join does not block deployment: the instance falls back to a standard IP-derived hostname and the environment may still become Ready and report healthy, while an ERROR event and deployment-log detail report the join failure.
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Elastic Beanstalk Can Join Windows Instances to Active Directory Before DeployingElastic Beanstalk joins Windows instances to Active Directory at launch. Check platform, DNS, IAM and OU requirements—and why Ready can hide a failed join.
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