Docker for Windows 7

Sat Jun 18, 2016

Docker for Windows 7

Docker for Windows is only supported for Windows 10 and above (due to required kernel updates).

Because the Docker Engine daemon uses Linux-specific kernel features, you can’t run Docker Engine natively in Windows. Instead, you must use the Docker Machine command, docker-machine, to create and attach to a small Linux VM on your machine. This VM hosts Docker Engine for you on your Windows system.

When openinng a git-for-windows bash shell, you can set the required environment variables via:

$ docker-machine env default


$ eval $(docker-machine env default)

As Docker Toolbox runs in a virtual machine, it uses docker-machine to comunicate and configure it. If you want to turn the virtual machine off, run:


docker-machine stop default

Differences between Git-for-Windows Bash and ‘Mintty’

NOTE: this is not an issue if you use the quickstart terminal shortcut

https://github.com/docker/toolbox/issues/136

Trying to run a shell into a running container (docker exec -it containerid bash) using DockerToolbox/docker-machine on Windows 7 gives this error:

"cannot enable tty mode on non tty input"

As a workaround, prefix the docker command with winpty, so:

winpty docker exec -it containerid bash

or a more creative solution

alias docker="winpty docker"

the alias trick results in problems when calling docker from inside scripts (like build scripts) and when redirecting input and output.

http://willi.am/blog/2016/08/08/docker-for-windows-interactive-sessions-in-mintty-git-bash/

https://github.com/docker/toolbox/issues/323 Use mintty for windows “Docker Quickstart Terminal” shortcut

This should be fixed in the Docker QuickStart Terminal - but not in other instances of Git Bash. In that case I think appending winpty is the best option.

/c/Program\ Files/Git/bin/bash.exe 

vs

/c/Program\ Files/Git/usr/bin/mintty.exe

Docker Toolbox for Windows 7 only supports volume mounts from c:/Users directory

11/11/2016 https://github.com/docker/compose/issues/2548#issuecomment-232390294 NOTE: You can not mount a volume outside of c:/Users and even then you need to be mounting something in your home directory due to permission issues. As a result I had to temporarily move usedgoodies.com to /c/Users/jeffrey.liu in order for the docker container to be able to copy to AWS S3.





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