Error in installing via Docker and help needed for integrating with REST API


I am trying to Set-up the DAOS system on my local machine. So, when I am trying to run the DockerFile for the same, it gives me the following error:

Also, I want to connect my REST API to the DAOS Server, and I know there is something called 'client APIs ' for DAOS. But, I need to know how to integrate my REST API with DAOS. 
It would be great if anyone could help me with this.

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