add -add flag to docker run

[proppy]

It would be nice to have a new flag to allow adding a file (not mounting) inside the container before running it.

This could deprecate the insert command that is weirdly limited to URL and bring the CLI experience in line what what you can do in a Dockerfile

[crosbymichael]

I"m not sure about this @proppy. Why not just bind mount ro or do an ADD?

[proppy]

@crosbymichael if you don't have a Dockerfile you can't ADD, and if you mount it doesn't persist if you commit the container to an image.

[SvenDowideit]

And bind-mount doesn't work unless you happen to be working on the same host as the docker daemon.

[proppy]

Related to #3050, if ADD get split similar functionality should be added to docker CLI.

/cc @pda

[duglin]

Would it work if you did this?
docker create ...
docker cp ...
docker start ....
assuming you could do "docker cp" from the host to a stopped container.

[jessfraz]

@proppy hiiii! is this still relevant? do you think we still need it :)

[proppy]

@jfrazelle yes, there is still no clean way to add a set of files to a container and commit from the CLI/API, w/o doing ADD in a Dockerfile or messing with stdin.

It means that you can't really do everything that a Dockerfile is doing, with docker base commands.

[duglin]

@proppy is it ok if we close this with the assumption that #13171 will solve your issue?

[proppy]

Sure.

[duglin]

thanks!