Cache build image?

[angrave]

Can we reduce the build time from 10 minutes to 20 seconds by building an image of all of the non-code parts?

https://github.com/classtranscribe/pyapi/blob/staging/Dockerfile

i.e. All of the non-source code parts of the current Dockerfile (e.g. tesseract) (upto line 25 or line 35)

[robkooper]

Need to pick up #7 again, this should use cache (as well as push for arm instances).

[angrave]

A little offtopic- Not caching but still about dockerfile tuning-

Should we add
ionice, nice and python3 -u (unbuffered) to the command?

• similar to pythonrpcserver dockerfile in WebAPI -

https://github.com/classtranscribe/WebAPI/blob/staging/pythonrpcserver.Dockerfile

Nice:Very low priority but not lowest priority (18 out of 19)

#ionice: Best effort class but second lowest priory (6 out of 7)
CMD [ "nice","-n","18", "ionice","-c","2","-n","6", "python3", "-u", "/PythonRpcServer/server.py" ]