bag

Docker in 600 lines of bash using proot. Fully compatible with termux, runs on android up to version 10 with no problems.

This is a stateless script, it creates no files or anything to keep track of the instances you create. Doesn't run a daemon. It's plain bash, will ls into a directory to see what instances you have. Simple as that.

Supported images

Currently only alpine. Will add arch, fedora, ubuntu, debian and ... later.

Road Map

Directly pull and run docker images.
Support chroot.
Test more on PC / x86.
Make proot accept custom port mapping.

Prerequisites

proot
bash 4.0+
tar (d'oh! does this even count?)
grep
sha256sum (or disable image verification)
curl

Examples

Example	Command
Run the command `whoami` in the default container	`bag x whoami`
Run the command `sleep 3` in the default container	`bag x sleep 3`
Run the command `whoami` in the container called foo, if the container doesn't exist, create it with default image first	`bag r foo whoami`
Create an container called foo with image alpine, don't run anything	`bag c foo alpine`
Create an container called foo with default image (alpine), don't run anything	`bag c foo`
Remove the container foo	`bag rm foo`
Remove the default container	`bag rmd`
Create tar archive from the container foo	`bag e foo`
Copy a file/dir into the continaer foo	`bag cp /etc/host foo:/opt`
Copy a file/dir from the continaer foo	`bag cp foo:/opt/config.cfg /tmp`
Copy a file/dir from the continaer foo to container bar	`bag cp foo:/etc bar:/usr/`

Implemented commands

(Docker) Command	Args	Alt Form	Info
version		-v	Display version.
help		[-]h[elp]	Display help and usage.
images		i[mages]	List all previously downloaded images.
rmi	rmi		Remove a previously downloaded image.
c	c image	c[reate]	Create an container from the image id .
run	run [cmd]	r[un]	Run a command in a container, can be existing container. If it doesn't exist a new one will be created from default image. If command is not given, it will open a login shell. But if the container has a entry point file and no command is given, the entry point file is ran instead of a login shell.
ps			List all previously created containers.
rm	rm id		Remove the container with the id .
rmd		rm bagdefault	Remove the default container.
cp	cp id:/src /dst	cp src id:/dst	Copy a file from host to an container or from an container to a host or from one container to another container. Recursive by default.
e	e id	e[xport]	Export the container with the id as a tar archive.
x	x cmd	execute-default	execute the command in the default container.

To be implemented commands:

exec
import
kill
pull
push
rename

hkoosha/bag

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