# How Amazon Elastic Beanstalk uses Amazon Secrets Manager
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With Amazon Elastic Beanstalk, you can quickly deploy and manage applications in the Amazon Cloud without having to learn about the infrastructure that runs those applications. Elastic Beanstalk can launch Docker environments by building an image described in a Dockerfile or pulling a remote Docker image. To authenticate with the online registry that hosts the private repository, Elastic Beanstalk uses a Secrets Manager secret. For more information, see [Docker configuration](https://docs.amazonaws.cn/elasticbeanstalk/latest/dg/single-container-docker-configuration.html) in the *Amazon Elastic Beanstalk Developer Guide*.