On redeploying container neither it gives error nor installed but ERPNext remained installed and custom app is not installing , Any hit of possible issue .
I could not solve the issue . I am learning first time the docker technology , tried other method to create image with apps required/developed by client and that did not work too . Being new Server I formatted server and repeated the process very carefully but with no luck again. @revant_one I found docker interesting . I have questions comparing to traditional bench based installation and compiling the list and will share through a separate post