Base image (minidocks/base)

The best docker container for developers. This is a very small container (total < 8 MB) based on Alpine image.

Alpine repositories

All images have registered the following apk repositories:

• @edge (@main, @community, @testing)
• @324 (@main324, @community324)
• @323 (@main323, @community323)
• @322 (@main322, @community322)
• @321 (@main321, @community321)

Utilities

All images contain the following extra packages:

• tini A tiny but valid init for containers.
• monit Managing and monitoring on a UNIX system.
• inotify-tools CLI tools providing a simple interface to inotify.
• dropbear Small SSH 2 client/server designed for small memory environments.
• envsubst Substitutes environment variables in shell format strings.
• ca-certificates Common CA certificates PEM files.
• su-exec Switch user and group id, setgroups and exec.
• wait-for Wait for another service to become available.
• libc6-compat Compatibility libraries for glibc.
• flock File locker from util-linux.
• tzdata Timezone data
• musl-locales Locales support for musl.

Features

Host user id and group id

The base image matches your userid / groupid inside the container at runtime.

Inspiration:

• https://github.com/Graham42/mapped-uid-docker
• https://github.com/reduardo7/docker-host-user

Handling user permissions

docker run --rm -e SUEXEC=$(id -u):$(id -g) <minidocks/image> sh

• https://denibertovic.com/posts/handling-permissions-with-docker-volumes/
• https://boxboat.com/2017/07/25/fixuid-change-docker-container-uid-gid/
• https://github.com/reduardo7/docker-host-user

Process Supervision

• https://github.com/nimmis/docker-alpine-micro
• http://jtimberman.housepub.org/blog/2012/12/29/process-supervision-solved-problem/
• https://github.com/rawmind0/alpine-monit/

escape quote https://stackoverflow.com/questions/15783701/which-characters-need-to-be-escaped-when-using-bash http://www.etalabs.net/sh_tricks.html

SSH

Pregenerated keys by dropbearkey -t ecdsa -f /etc/dropbear/dropbear_ecdsa_host_key dropbearkey -t ed25519 -f /etc/dropbear/dropbear_ed25519_host_key

rootfs

ssh

Timezone

Wait

https://github.com/erikogan/wait4ports https://raw.githubusercontent.com/eficode/wait-for/master/wait-for https://raw.githubusercontent.com/CraftShell/wait-host/master/wait-host.sh https://github.com/bash-suite/wait-host/blob/master/wait-host.sh https://stackoverflow.com/questions/31746182/docker-compose-wait-for-container-x-before-starting-y/41854997#41854997 wget -O /usr/local/bin/wait https://github.com/ufoscout/docker-compose-wait/releases/download/2.9.0/wait && chmod a+x /usr/local/bin/wait \

Locales

gliderlabs/docker-alpine#144

Supervise

• https://github.com/bahamas10/vsv

• https://github.com/ido50/Svsh

• https://github.com/lecram/isv

• https://github.com/sigmonsays/runitcmd

• https://github.com/kskeigrshi/runitctl

• https://github.com/threefoldtech/zinit

• https://github.com/bitmeal/fission

• https://github.com/daltomi/xsv

• https://github.com/kosma/runit-docker

• https://github.com/cheshirecode/alpine-runit

• https://github.com/docker-suite/alpine-runit

Environment variables

• ALIAS_*:

• CLEAN:

• ENV_FILE:

• AUTO_CHOWN:

• PATH_PREFIX:

• PATH_SUFFIX:

• CRON_USER_*:

• CRON_SCHEDULE_*:

• CRON_COMMAND_*:

• STARTUP_COMMAND_*:

• FILE_*_PATH:

• FILE_*_CONTENT:

• SUEXEC:

• ID:

• USER_NAME: User name. You can use $USERNAME to get current user name.

• USER_ID: User ID. You can use $UID to get current user ID.

• GROUP_NAME: User group name. You can use $(id -g -n $USERNAME) to get current user group name.

• GROUP_ID: User group ID. You can use $(id -g $USERNAME) to get current user group ID.

• USER_SHELL: User shell. Default value: /bin/bash.

• USER_PASSWORD: User password. Default value: password.

• USER_MASK: User mask.

• PATH_HOME: Default value: /home/${HOST_USER_NAME}.

• TIMEZONE:

https://github.com/hejack0207/empty.c (sexpect)

Run GUI application

xhost +
docker run --rm -it -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix -v `pwd`:/app -w /app minidocks/gimp

Tags

Tag	Size
latest, 3.24
build, 3.24-build
edge
edge-build
3.24
3.24-build
3.23
3.23-build
3.22
3.22-build
3.21
3.21-build

Inspiration

• https://github.com/just-containers/s6-overlay
• https://blog.iron.io/microcontainers-tiny-portable-containers/
• http://www.projectatomic.io/docs/docker-image-author-guidance/
• https://github.com/nimmis/docker-alpine-micro
• https://github.com/dockage/alpine
• https://github.com/docker-suite/alpine-base/

Alternatives

• https://github.com/CraftDock/alpine-base
• https://github.com/thecodingmachine/docker-images-php
• https://github.com/bash-suite
• https://github.com/QuantumObject/docker-alpine

https://ypereirareis.github.io/blog/2015/12/01/docker-container-external-links-alias-hosts-unavailable/ https://jtreminio.com/blog/running-docker-containers-as-current-host-user