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x11docker
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x11docker
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#! /bin/bash
# x11docker
# Run GUI applications and desktop environments in docker on a separate X server or Wayland compositor.
# Provides GPU acceleration and pulseaudio sound. Circumvents common X security leaks.
# Restrictes docker container privileges with 'docker run --cap-drop=ALL --security-opt=no-new-privileges'
# Type 'x11docker --help' or scroll down to read usage information.
# https://github.com/mviereck/x11docker
Version="3.6.1.10"
changelog() {
#### ToDo:
# arch: --weston-xwayland: weston panel appears although weston.ini is loaded
# fails as user
# fedora: selinux issue: '--security-opt label=type:container_runtime_t': need more restrictive setting
# https://unix.stackexchange.com/questions/386767/selinux-and-docker-allow-access-to-x-unix-socket-in-tmp-x11-unix
# check all FIXME
# check multimonitor support for --xorg. --scale and --size will most probably be strange or fail.
# --xorg: check custom systemd start of X #7
# check X in container #7
# some tests with Xephyrglamor=no
### BUG collection: x11docker bugs:
# BUG check whether VT is not in use with --xorg/--xpra/--xdummy, bug if accidently using vt that is already in use
# BUG KDE-Wayland fails with different --user, seems to be ownership issues with wayland socket
### BUG collection: non x11docker bugs
# kdeneon/all:user-lts plasmashell: no kwin?
# bugreport docker: container user does NOT have same groups as host user - just wrong doku?
# BUG Xwayland does not always sit at 0:0 on multiple outputs
# BUG Xwayland ignores xhost -SI:localuser:$USER
# BUG nxagent with x11docker/lxde: segmentation fault of lxpanel with --userns-remap. bug in nxagent, lxpanel or x11docker?
# BUG --kwin*: wrong fullscreen and crashes in gnome-wayland, strange in weston, WAYLAND_DISPLAY="" does not help, probably bug in kwin
# BUG --output-count: sometimes multiple windows don't close although x11docker is finished. high cpu load, probably Weston and Kwin bug
# BUG scale>1 Xwayland in Weston is too large (Xwayland bug), rendering issues on tty (switching scaled/unscaled Xwayland on keyboard/mouse events)
# BUG x11docker-gui in weston freezes weston in combo boxes. Weston bug ? QT3/4 bug?
# BUG debian bug report lightdm/sddm contra gdm, dm can crash on tty switch if multiple graphical sessions are running
#### x11docker changelog ####
# 27.08.2017 V3.6.1.10 --nothing: no check for successfull startup, avoids error message for short-timed cli commands
# --showenv: wait for output until X is ready
# 25.08.2017 V3.6.1.9 bugfix: --home: remove debugging error message
# 25.08.2017 V3.6.1.8 bugfix --orphaned: did not find cache folder
# provide stdin to host exe, too (--exe)
# bugfix --hostuser: cache folder created with root ownership
# 23.08.2017 --silent: supress error dialog box, too
# more reliable exit code 1 on error
# 22.08.2017 V3.6.1.7 removed color from verbose, looks strange in logfile
# bugfix installer: check for installed unzip
# 22.08.2017 V3.6.1.6 code cleanup
# changed window manager priority
# SELinux: '--security-opt label=type:container_runtime_t' allows access to X unix socket
# 21.08.2017 --xorg: avoid searching for native resolution if --scale is set.
# --xorg: improved check for failed panning
# Logfile created in /tmp, moved later to $Cacherootfolder, to catch early messages
# bugfix: trap -EXIT avoids double finish. faster shutdown now.
# code cleanup in variable definitions and option parsing
# 21.08.2017 V3.6.1.5 bugfix: broken stdin pipe if running as root
# 19.08.2017 mkdir -p in installer for tmp folder: -p was missing, could cause error
# declare note() in xinitrc
# --scale support for --xorg
# --size without --scale for --xorg: first try --mode, than panning
# 19.08.2017 V3.6.1.4 bugfix: wrong file descriptor for messages before part init()
# 18.08.2017 strange bugfix: passwordless sudo -n on fedora did not work with x11docker-gui started from menu instead of cli, without -n is ok
# beesu: new frontend for --pw available on fedora
# do not test for passwordless docker if --pw is set
# create non-existing shared home folder for user different from host user if running as root
# 17.08.2017 more verbose cache folder names, now with image name and X server in use
# 17.08.2017 V3.6.1.3 minor bugfix installer: did not find icon at new location
# 15.08.2017 V3.6.1.2 --resizeable: deprecated. Xephyr can crash if resized.
# no |tee to $Xtermlogfile on 'docker pull': better interactive output
# 15.08.2017 V3.6.1.1 timeout 3600 for xauth cookie creation. Needed to avoid cookie timeout on 'docker pull'
# 15.08.2017 V3.6.1 --stdout and --stderr: new options showing stdout and stderr of imagecommand
# forward stdin of x11docker to image command
# --silent: new option supressing all x11docker terminal messages
# x11docker-gui trys to use image x11docker/kaptain if kaptain is not installed
# 14.08.2017 V3.6.0.5 bugfix opensuse: cookie creation failed due to different xauth behaviour
# bugfix sudo: do not prompt for password for 'docker stop' in finish(), rather fail stopping
# note() instead of warning() for less urgent messages
# 14.08.2017 V3.6.0.4 minor bugfix: do not complain about missing docker daemon on --xonly
# 13.08.2017 V3.6.0.3 xpra dpi warning only if --dpi or --scale is set
# cookie failure warning for untrusted cookies only
# bugfix installer: remove older installations in /usr/local/bin
# 13.08.2017 V3.6.0.2 bugfix preventing --xorg from console if running in subshell
# bugfix in finish(): check for still running container with ps, too. formerly root only could detect it
# 12.08.2017 check for running docker daemon with $Dockerdaemon instead of ifconfig
# do not disable SELinux if --ipc is set
# bugfix fedora: --xorg: add -keeptty if running from tty
# 12.08.2017 V3.6.0.1 minor bugfix --gpu: :rw,z does not work for --device
# 12.08.2017 V3.6.0 workaround: disabling SELinux for container until solution for sharing unix socket is found.
# compare: http://www.projectatomic.io/blog/2015/06/using-volumes-with-docker-can-cause-problems-with-selinux/
# 11.08.2017 install to /usr/bin instead of /usr/local/bin to support root
# chmod 755 instead of +x in installation
# check if docker is installed
# check if docker daemon is running (with ifconfig)
# use zenity or notify-send if xmessage is not available in error()
# bugfix: cookie creation failed on X without extension security. (fedora)
# 09.08.2017 replaced sed in xauth cookie creation, sed fails in openSUSE (!?)
# 03.08.2017 --rw: new option to allow read/write access to container root file system
# check for xpra --dpi bug in 2.1 series
# xpra --start-via-proxy=no for xpra >= 2.1
# --nxagent: temporary xhost +SI:localuser:$Hostuser workaround as it fails again to authenticate, not dividing between XAUTHORITY and --auth
# 28.07.2017 --pw: new option to choose password prompt frontend. default: pkexec
# 25.07.2017 reduce dependency warnings for --auto
# bugfix: repeating error message if waitforlogentry() failes
# 23.07.2017 prefer $Hostenv instead of $Newxenv for password prompt -> better support for gksu
# show docker pull in a terminal window
# 20.07.2017 allow --hostdisplay with --xonly. May at least be usefull to create an untrusted cookie.
# bugfixes in "check window manager"
# slit docker startup from xinitrc
# 19.07.2017 copy host cookie into $Cachefolder for compatibility with gksu
# use gksu/gksudo if available
# --showenv for --xonly
# finish(): docker stop $Containername
# dockerrc: no ps/sleep loop if running as root
# --no-entrypoint: New option to disable ENTRYPOINT in image
# --root: deprecated. Can be achieved with --hostuser=root
# --hostuser: New option to set host user different from $(logname)
# 17.07.2017 check if docker can run without password to make --no-password needless
# don't start docker in xinitrc as xinit runs unprivileged
# --ps keeps cache files, too (formerly container only)
# 14.07.2017 --desktop: no longer deprecated, easier to understand and remember than --wm=none
# -d: used for --desktop again, no longer for --dbus. --dbus now has short opt -b
# improved X server check due to new variable $Desktopmode
# minor bugfix: &, &&, ;, <, >, | and the like possible in image command again
# 13.07.2017 --fullscreen. Set fullscreen screen size for windowed options (xpra),too
# allow root to start x11docker, use $(logname) for X server and as container user
# 12.07.2017 V3.5.11 pull image if not available before calling 'docker run'
# 12.07.2017 V3.5.10 regard ENTRYPOINT in dockerrc
# 10.07.2017 regard entrypoint of image in dockerrc
# 09.07.2017 V3.5.9 --user: bugfix parsing custom gid, gid was set to username
# --home with --user=(unknown): only show warning (instead of error) not creating persistent home
# do not set write permissions on --home or --homedir folder for different users than $USER or --user. (Not x11docker's job)
# do not set --read-only if --user=0
# minor bugfix: chown x11docker_CMD to host user to avoid permission issues in $Sharefolder
# 07.06.2017 V3.5.8 --nxagent: bugfix due to update? must set nxagent -ac (=xhost +) temporary to allow xinit
# 06.07.2017 --kwin-native: always share Wayland (--sharewayland --waylandenv --dbus)
# minor bugfix: allow --wm for --kwin-xwayland
# docker run "--read-only --volume=/tmp" to restrict container filesystem as read-only (except for --sudouser)
# --xorg supports --rotate. (Xephyr could, but crashes -> Xephyr bug. Nxagent, Xdummy, Xvfb and Xwayland refuse this.)
# 04.06.2017 --xhost STR: new option to specify "xhost STR". Deprecated: --xhost+
# 03.06.2017 --xvfb: new option to explicitly use Xvfb and to clearly use Xdummy on --xdummy
# Xdummy script in $Cachefolder forked from https://xpra.org/trac/browser/xpra/trunk/src/scripts/xpra_Xdummy
# calculate VideoRam in xorg.xdummy.conf (instead of fat hardcoded 256000 kb)
# 28.06.2017 V3.5.7 usage info for HTML5 web application setup
# redirect verbose output to &3 to show it in subshells, too, and to avoid possible collision with read < <()
# 25.06.2017 --env: set custom environment variables in dockerrc instead of in docker run
# removed unix in $Newxenv for DISPLAY to make xpra ssh setup easier
# Xdummy-Xwayland: new X server to provide --gpu for --xdummy based on weston, xwayland and xdotool
# 24.06.2017 always enable extension Xtest on --xdummy to allow xpra access
# 22.06.2017 share X socket to /tmp, create .X11-unix in dockerrc and softlink socket. This avoids writeable X11-unix in $Cachedir.
# --setwaylandenv: env now set in dockerrc instead of docker command
# 21.06.2017 V3.5.6 --sudouser: reincarnated option to give sudo without password to container user.
# docker command one-liner extended to dockerrc. dockerrc creates x11docker_CMD. Can always extract image command without additional password prompt and create some environment.
# bugfix parsing option --wm
# 20.06.2017 minor bugfix: export $Hostxenv in error() was empty if called in xtermrc
# create /tmp/XDG_RUNTIME_DIR and softlink to wayland socket in container due to some KDE issues (XDG_RUNTIME_DIR must be owned by user). Fails with different --user
# create /tmp/.X11-unix with 1777 in container to allow new X sockets (especially for startplasmacompositor). Drawback: container writeable folder in cache
# 17.06.2017 minor bugfix: avoid pointless warning about XTEST if not using xpra
# shorter sleep in finish()
# don't search for deprecated /tmp/x11docker in checkorphaned()
# bugfix typo preventing start of --kwin and --kwin-native (-width instead of --width)
# warning with hint to use --xpra-xwayland if --scale is used with --weston-xwayland.
# 10.06.2017 V3.5.5.2 update usage info for --xpra and --xpra-xwayland
# 10.06.2017 V3.5.5.1 minor bugfix in --auto always choosing --xorg
# 09.06.2017 V3.5.5 autochoose xpra-desktop if xephyr is missing
# 06.06.2017 improved part: check virtual screen size
# 05.06.2017 changed dpi calculation depending on xpra mode
# 03.06.2017 desktop mode for xpra if --wm is given
# 02.06.2017 always set XDG_RUNTIME_DIR=/tmp as some apps may expect it
# 02.06.2017 V3.5.4 set rw access for /dev/dri (#12)
# 31.05.2017 disable extension XTEST if using wm from host (to avoid abuse of context menu of openbox and the like)
# 29.05.2017 V3.5.3 --pulseaudio: get and use IP of container instead of docker0 IP range (#11), disabling TCP module on exit
# 27.05.2017 changed --volume to --sharedir to avoid confusion
# 24.05.2017 update usage()
# mount $Sharefolder and its content read-only
# remove X11-unix from $Sharefolder
# set read-only for /dev/dri on --gpu
# --security-opt=no-new-privileges added to docker run
# 22.05.2017 V3.5.2 --volume: new option to share host folders
# 19.05.2017 V3.5.1 user creation with '--addgroup video' to support pre-systemd and kdeneon gpu support
# create /tmp/.X11-unix with 1777
# 17.05.2017 V3.5.0 hardening container security (--cap-drop=ALL), improved user handling (--user)
:
}
usage() { # --help: show usage information
echo "
x11docker: Run GUI applications and desktop environments in docker.
Avoids X security leaks using additional X servers.
Container user is same as host user to avoid root in container.
Default docker container capabilities are dropped.
Wayland support included. Published under MIT license.
Usage:
To run a docker image with new X server (auto-choosing X server):
x11docker [OPTIONS] IMAGE [COMMAND]
x11docker [OPTIONS] -- "'"[DOCKER_RUN_OPTIONS]"'" IMAGE [COMMAND [ARG1 ARG2 ...]]
To run a host application on a new X server:
x11docker [OPTIONS] --exe COMMAND
x11docker [OPTIONS] --exe -- COMMAND [ARG1 ARG2 ...]
To run only a new empty X server:
x11docker [OPTIONS]
To run a HTML5 web application (needs package websockify):
Example:
read Xenv < <(x11docker --xdummy x11docker/lxde pcmanfm)
echo \$Xenv && export \$Xenv
xpra start \$DISPLAY --use-display --html=on --bind-tcp=localhost:14500
(In your browser go to adress: http://localhost:14500
Further infos at https://xpra.org/trac/wiki/Clients/HTML5 ).
* The new X server will be terminated once dockered application is closed.
* On systems without a root password like Ubuntu, use option '--sudo'.
* x11docker is designed to run images only. New containers will be discarded.
* Doesn't have dependencies inside of docker images
(except for special options --gpu, --pulseaudio and --dbus).
Dependencies:
Depending on chosen options, x11docker needs some packages to be installed.
It will check for them on startup and show messages if some are missing.
List of possibly needed packages:
more important:
xpra xserver-xephyr weston xwayland xdotool xvfb
less important:
xclip pulseaudio kwin nxagent xdpyinfo
least important:
xserver-xorg-legacy xserver-xorg-video-dummy
Options:
--help display this message and exit
-e, --exe execute host application on new X server (no docker)
--xonly only create empty X server (default for no image name)
X server options:
--auto auto choose X server for docker applications (default)
(regards options --wm and --gpu. If --wm=none, a desktop
environment in container is assumed.)
-a, --xpra use xpra to show application windows on host display
(needs package 'xpra' to be installed. On Ubuntu 16.04
also package 'xvfb'). If option --wm is given, xpra runs
in desktop mode like --xephyr.
-y, --xephyr use Xephyr to show desktops in a window on host display
(needs package 'xserver-xephyr' to be installed)
-A, --xpra-xwayland use xpra to show single applications using Xwayland.
Supports options --gpu and --scale. (Needs 'xpra' and
'xwayland', on X also 'weston' and 'xdotool') If option
--wm is given, xpra runs in desktop mode like --xephyr.
-Y, --weston-xwayland similar to --xephyr, but support of option --gpu.
Uses Weston with Xwayland. Runs as nested server
in X or on its own from console. (Needs packages 'weston'
and 'xwayland' to be installed.)
-h, --hostdisplay share host display :0, QUITE BAD CONTAINER ISOLATION.
Discouraged, use with full trusted images only.
Least overhead of all X server usage variations.
-x, --xorg use new core Xorg server. Runs from console.
On Ubuntu 16.04 you need package xserver-xorg-legacy.
Edit file '/etc/X11/Xwrapper.conf' and
replace line: allowed_users=console
with lines allowed_users=anybody
needs_root_rights=yes
(This allows to start from within X, too.)
special X servers:
-n, --nxagent seamless like --xpra if --wm is empty or not given,
windowed like --xephyr if --wm is given or 'none'.
(Needs nxagent to be installed.) (experimental)
-X, --xwayland use Xwayland, needs a running Wayland compositor.
(Needs 'xwayland' to be installed.)
--kwin-xwayland like --weston-xwayland, but using kwin_wayland
-N, --kwin-native Seamless X and Wayland together. Experimental.
--xdummy invisible X server. (needs 'xserver-xorg-video-dummy')
--xvfb invisible X server. (needs 'xvfb')
--xdummy and --xvfb can be used for custom access,
for example with xpra and/or ssh. They include
option --showenv.
Along with option --gpu, an invisible setup with Weston,
Xwayland and xdotool is used (instead of Xdummy or Xvfb)
No X server at all:
-W, --weston Weston without X for pure Wayland applications.
Runs in X or from console. (Needs package weston.)
-H, --hostwayland Share host Wayland without X for pure Wayland apps.
(Needs already running Wayland compositor.)
(Can be combined with --hostdisplay.)
-K, --kwin KWin without X for pure Wayland applications.
Runs from X or from console. (Needs kwin_wayland.)
--nothing Do not provide any X or wayland server
Host window manager and container desktop environment:
-w, --wm COMMAND host window manager to use.
If COMMAND=auto or 'm', autodetect a host wm.
Usefull f.e to run single applications in Xephyr.
If COMMAND=none or 'n', don't use a host wm, but assume
a desktop environment in image (influences --auto).
-d, --desktop use windowed desktop mode (influences --auto).
(setting option --wm=none has the same effect).
Screensize and related options:
-f, --fullscreen run Xephyr, nxagent or Weston in fullscreen mode.
--size XxY set screen size of new X server (f.e. 800x600).
-l, --scale N scale factor N for xpra, Xorg or Weston.
Allowed for --xpra, --xorg --xpra-xwayland: 0.25...8.0.
Allowed for --weston and --weston-xwayland: 1...9.
(Mismatching font sizes can be adjusted with --dpi).
--rotate N Rotate display (--xorg, --weston and --weston-xwayland)
Allowed values: 0, 90, 180, 270, flipped, flipped-90,
flipped-180, flipped-270 (flipped = mirrored).
--dpi N dpi value (dots per inch) to submit to clients.
Influences font size of some applications.
--output-count N Count of outputs for Weston, KWin or Xephyr. Default: 1
Simulates multiple monitors. (experimental)
User, shared folders, GPU, clipboard and sound options:
--user N Create container user N (N=name or N=uid). Default:
same as host user. N can also be an unknown user id.
You can specify a group id with N being 'user:gid'.
-m, --home use a host folder ~/x11docker/imagename as home folder
in container. (Note: docker user namespaces will
be disabled if configured, currently not supported.)
--homedir DIR specify custom host folder DIR for option --home.
--sharedir DIR share host folder DIR with r/w access at same location.
(can be specified multiple times for multiple folders).
-c, --clipboard share clipboard between X servers (works best with xpra.
Most other X servers need xclip to be installed).
-p, --pulseaudio enable sound with pulseaudio over tcp. Needs
pulseaudio to be installed on host and in image.
-g, --gpu Hardware accelerated OpenGL rendering. Shares files in
/dev/dri. Works with all X and Wayland options except
--xpra --xephyr, --nxagent and --xdummy.
Needs MESA/OpenGL to be installed in image.
Degrades container isolation. Container access to GPU.
Advanced options:
--no-entrypoint disable ENTRYPOINT in image to allow other commands, too
-o, --no-xhost disable any access to host X server granted by xhost
-E, --waylandenv set some environment variables summoning some toolkits
to use Wayland. (GTK3 QT5 Clutter SDL Elementary Evas)
-b, --dbus start image command with dbus-launch.
(often needed for QT5 applications running on Wayland)
(needs dbus-x11 to be installed in image)
--env VAR=value set custom environment variable VAR=value
-v, --verbose be verbose
--silent do not show any terminal messages
--stdout show stdout of image command
--stderr show stderr of image command
--pw FRONTEND choose frontend for password prompt. Possible FRONTEND:
su sudo gksu gksudo lxsu lxsudo kdesu kdesudo
pkexec beesu none
Developer options:
--sudouser sudo without password for container user (testing only,
severe reduction of default x11docker security).
--hostuser USER run X (and container user) as user USER. Default is
result of \$(logname). (x11docker needs to run as root).
--showenv echo \$DISPLAY, \$XAUTHORITY and \$WAYLAND_DISPLAY.
-S, --sharewayland share Wayland socket and WAYLAND_DISPLAY.
--westonini FILE custom weston.ini for --weston and --weston-xwayland.
--cachedir DIR custom cache folder. (Default: \$HOME/.cache/x11docker)
--xhost STR set \"xhost STR\" on new X server (see 'man xhost').
(Use with care. '--xhost +' allows access for everyone).
--no-auth disable cookie authentication (testing purposes only)
--trusted Use trusted cookies for --hostdisplay and --kwin-native
- --untrusted create untrusted cookies. Restricts X access.
Default for --hostdisplay and --kwin-native to avoid
MIT-SHM errors. Avoids keylogging with --hostdisplay.
If --gpu is set, --trusted is used.
--vt N use vt / tty N (affects --xorg, --xdummy, --xpra)
--display N use display number N
--ps preserve container on exit.
--ipc set docker run option --ipc=host, BREAKS ISOLATION.
share host interprocess communication and shared memory.
Allows MIT-SHM extension.
--net set docker run option --net=host, BREAKS ISOLATION.
share host network stack including dbus communication.
--cap-default allow default docker container capabilities.
Disables contaier security hardening normally done with
'--cap-drop=ALL --security-opt=no-new-privileges'
--rw Allow read/write access to container root filesystem
(default for --user=root and --sudouser)
Options not starting docker or X server:
--license show license of script (MIT) and exit
--starter create starter on desktop and exit
--orphaned cleanup check for orphaned containers and cache files
Installation options (needs root permissions):
--install install x11docker and x11docker-gui on your system
(uses /usr/bin, creates xdg icon and desktop entry,
creates /usr/share/doc/x11docker for readme and license)
--update update x11docker with latest version from github
--remove remove x11docker from your system
Weaknesses / ToDo:
- If docker daemon runs with --selinux-enabled, it is disabled for x11docker
containers as it inhibits access to X unix socket.
Compare: http://www.projectatomic.io/blog/2015/06/using-volumes-with-docker-can-cause-problems-with-selinux/
- User namespace remapping has limited support and is disabled for
options --home and --homedir.
x11docker version: $Version
Please report issues at https://github.com/mviereck/x11docker
"
}
license() { # --license: show license (MIT)
echo 'MIT License
Copyright (c) 2015, 2016 Martin Viereck
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.'
}
error() { # show error messages on stderr and exit
Message="$*
Type 'x11docker --help' for usage information
For debugging, run x11docker in terminal and/or enable option '--verbose'
and look afterwards at logfile $Logfile3
If you think this is a bug in x11docker,
please report at https://github.com/mviereck/x11docker"
echo "
$(tput setaf 1)x11docker ERROR$(tput sgr0) $Message
" >&3
#[ -n "$Hostxenv" ] && export $Hostxenv
[ "$Silent" = "no" ] && [ -n "$DISPLAY" ] && {
command -v xmessage >/dev/null && {
echo "x11docker ERROR: $Message" | xmessage -file - -default okay
:
} || {
command -v zenity >/dev/null && {
zenity --error --no-markup --ellipsize --text="x11docker ERROR: $Message"
:
}
} || notify-send "x11docker ERROR: $Message"
}
[ -e "$Logfile" ] && echo "x11docker ERROR: $Message
" >> $Logfile
[ -d "$Sharefolder" ] && { mkfile $Sharefolder/timetosaygoodbye ; echo 1 >> $Sharefolder/timetosaygoodbye ; }
Exitcode=1
exit $Exitcode # trap to finish()
}
warning() { # show warning messages
echo "$(tput setaf 3)x11docker WARNING:$(tput sgr0) $*" >&3
echo "" >&3
[ -e "$Logfile" ] && echo "x11docker WARNING: $*
" >> $Logfile
return 0
}
note() { # show notice messages
echo "$(tput setaf 6)x11docker NOTE:$(tput sgr0) $*" >&3
echo "" >&3
[ -e "$Logfile" ] && echo "x11docker NOTE:$(tput sgr0) $*
" >> $Logfile
return 0
}
verbose() { # show verbose messages
# only logfile notes here for now, terminal output with tail in part:verbose
# [ -e $Logfile ] && echo "$(tput setaf 2)x11docker:$(tput sgr0) $*
[ -e $Logfile ] && echo "x11docker: $*
" >> $Logfile
return 0
}
installer() { # --install, --update, --remove: Installer for x11docker
# --install:
# - copies x11docker and x11docker-gui to /usr/bin
# - installs icon in /usr/share/icons
# - creates x11docker.desktop file in /usr/share/applications
# --update:
# - download and install latest version from github
# --remove
# - remove installed files
export PATH="$PATH:/usr/local/bin" # avoid bug on opensuse where root does not have this in $PATH. Will become obsolete as new default is /usr/bin
# Prepairing
case ${1:-} in
--install)
command -v x11docker > /dev/null && { error "x11docker seems to be installed already.
Try 'x11docker --update' instead." ; }
[ -f "./x11docker" ] || { error "File x11docker not found in current folder.
Try 'x11docker --update' instead." ; }
command -v kaptain > /dev/null || { warning "x11docker-gui needs package kaptain
to provide a GUI, but could not find kaptain on your system.
Please install package kaptain if you want to use x11docker-gui.
x11docker-gui tries to use image x11docker/kaptain if kaptain missig.
x11docker itself does not need it and works fine from cli.
Get kaptain on github: https://github.com/mviereck/kaptain" ; }
;;
--update)
mkdir -p /tmp/x11docker-install && cd /tmp/x11docker-install || error "Could not create or cd to /tmp/x11docker-install"
echo "Downloading latest x11docker version from github"
wget https://github.com/mviereck/x11docker/archive/master.zip || error "Could not download x11docker-master from github"
echo "Unpacking archive"
command -v unzip >/dev/null || error "Can not unpack archive. Please install 'unzip'."
unzip master.zip || error "Could not unzip archive"
echo ""
cd /tmp/x11docker-install/x11docker-master || error "could not cd to /tmp/x11docker-install/x11docker-master"
;;
esac
# Doing
case ${1:-} in
--install|--update)
[ -x /usr/local/bin/x11docker ] && rm -v /usr/local/bin/x11docker
[ -x /usr/local/bin/x11docker-gui ] && rm -v /usr/local/bin/x11docker-gui
echo "Installing x11docker and x11docker-gui in /usr/bin"
cp x11docker /usr/bin/ || error "Could not copy x11docker to /usr/bin"
chmod 755 /usr/bin/x11docker || error "Could not set executeable bit on x11docker"
cp x11docker-gui /usr/bin/ && chmod 755 /usr/bin/x11docker-gui || warning "x11docker-gui not found"
echo "Creating icon and application entry for x11docker"
X11dockericonfile=$(x11docker-gui --icon)
[ -e "$X11dockericonfile" ] && {
xdg-icon-resource install --context apps --novendor --size 72 "$X11dockericonfile" x11docker
rm $X11dockericonfile
} || note "Could not create icon for x11docker"
[ -e "/usr/bin/x11docker-gui" ] && {
echo "[Desktop Entry]
Version=1.0
Type=Application
Name=x11docker
Comment=Run GUI applications in docker images
Exec=x11docker-gui
Icon=x11docker
Categories=System
" > /usr/share/applications/x11docker.desktop
} || note "Did not create desktop entry for x11docker-gui"
echo "Storing README.md and LICENSE.txt in /usr/share/doc/x11docker"
mkdir -p /usr/share/doc/x11docker && {
cp README.md /usr/share/doc/x11docker/
cp LICENSE.txt /usr/share/doc/x11docker/
} || note "Error while creating /usr/share/doc/x11docker"
echo "Installation ready: x11docker version $(x11docker --version)"
;;
--remove)
echo "removing x11docker from your system"
[ -x /usr/local/bin/x11docker ] && { # from older installations. /usr/bin is default now as /usr/local/bin can miss in $PATH for root
/usr/local/bin/x11docker --orphaned
rm -v /usr/local/bin/x11docker
rm -v /usr/local/bin/x11docker-gui
}
[ -x /usr/bin/x11docker ] && {
/usr/bin/x11docker --orphaned
rm -v /usr/bin/x11docker
rm -v /usr/bin/x11docker-gui
}
[ -e "/usr/share/applications/x11docker.desktop" ] && rm -v /usr/share/applications/x11docker.desktop
[ -e "/usr/share/doc/x11docker" ] && rm -R -v /usr/share/doc/x11docker
xdg-icon-resource uninstall --size 72 x11docker
note "Will not remove files in your home folder.
There may be files left in \$HOME/.local/share/x11docker
The symbolic link \$HOME/x11docker may exist, too.
The cache folder \$HOME/.cache/x11docker should be removed already."
;;
esac
# Cleanup
case ${1:-} in
--update)
echo "Removing downloaded files"
cd ~
rm -R /tmp/x11docker-install
;;
esac
echo "Ready."
}
checkorphaned() { # --orphaned : check for non-removed containers and left cache files
note "x11docker will check for orphaned containers from earlier sessions.
This can happen if docker was not closed successfully.
x11docker will look for those containers and will clean up x11docker cache.
Caution: any currently running x11docker sessions will be terminated, too."
Orphanedcontainers=""
Orphanedfolders=""
cd $Cacherootfolder || error "Could not cd to cache folder $Cacherootfolder."
[ $? ] && [ -n "$(echo $Cacherootfolder | grep .cache/x11docker)" ] && Orphanedfolders=$(echo $(find $Cacherootfolder -mindepth 1 -maxdepth 1 -type d | sed s%$Cacherootfolder/%%))
Orphanedcontainers="$(docker ps -a --filter name=x11docker_X --format "{{.Names}}")"
Orphanedcontainers="$(env IFS='' echo $Orphanedcontainers)"
if [ -z "$Orphanedcontainers" ] && [ -z "$Orphanedfolders" ] ; then
note "No orphaned containers or cache files found. good luck!"
else
note "Found orphaned containers:
$Orphanedcontainers"
note "Found orphaned folders in $Cacherootfolder:
$Orphanedfolders"
for Line in $Orphanedfolders ; do
[ -d "$Cacherootfolder/$Line/share" ] && [ ! -e "$Cacherootfolder/$Line/share/timetosaygoodbye" ] && {
note "Found possibly active container $Line.
Will summon it to terminate itself."
touch "$Cacherootfolder/$Line/share/timetosaygoodbye" # terminating possibly running x11docker sessions
sleep 2
}
done
[ -n "$Orphanedcontainers" ] && {
note "docker rm -f $Orphanedcontainers"
note "$(bash -c "docker rm -f $Orphanedcontainers" 2>&1)"
}
[ -n "$Orphanedfolders" ] && {
note "rm -R -f -v $Orphanedfolders"
note "$(rm -R -f -v $Orphanedfolders 2>&1)"
}
fi
note "Ready."
}
storepid () { # store pids and names of background processes in file $Bgpidfile
# store Pid and process name of background processes in file
# $1 should be Pid, $2 should be name of process
# for use on exit / with trap to clean up with background processes
# this subroutine has a twin in xinitrc
echo ${1:-} ${2:-} >> $Bgpidfile
verbose "stored background pid ${1:-} of ${2:-}"
}
finish() { # trap routine, clean up background processes and cache
trap - EXIT
verbose "terminating x11docker ..."
# global: Sharefolder Bgpidfile Containername Cachefolder Preservecachefiles
[ -e "$Sharefolder" ] && $Mksu "touch $Sharefolder/timetosaygoodbye"
[ -s "$Bgpidfile" ] && {
# check for possible remaining background processes stored in $Bgpidfile
# double check with Pid and name; kill if process is still running
while read -r Line ; do
Pid=$(echo $Line | awk '{print $1}')
Name=$(echo $Line | awk '{print $2}')
# if [ -n "$Pid" ] && [ -n "$(ps -p $Pid | grep $Name)" ] ; then
if [ -n "$Pid" ] && [ -n "$(ps -p $Pid --no-headers)" ] ; then ### FIXME check with name was cleaner
verbose "terminating background pid $Pid of $Name"
case $Name in
weston|kwin_wayland|compositor|xpra|windowmanager|shareclipboard|hostexe|Xwatch) kill -s KILL $Pid || {
sleep 1
[ -n "$(ps -p $Pid --no-headers)" ] && warning "error terminating $Pid $Name"
}
;;
docker)
[ -n "$Sudo" ] && Sudo="sudo -n" # no password prompt here, rather fail
$Sudo docker stop $Containername >/dev/null 2>&1 || {
! $Sudo docker images >/dev/null 2>&1 || { [ -n "$($Sudo docker ps --filter name=$Containername --quiet 2>&1)" ] || [ -n "$(ps -p $Pid | grep docker)" ] ; } && {
note "Found remaining docker process. Most probably the X session
was not closed in a clean way. Can not stop container because x11docker
does not run as root. Will wait up to 10 seconds for docker to finish."
Zeit=$(date +%s)
while [ -n "$(ps -p $Pid | grep docker)" ] ; do
note "waiting for docker to terminate ..."
sleep 1
[ 10 -lt $(echo "$(date +%s) - $Zeit" | bc) ] && break ||:
done
if [ -n "$(ps -p $Pid | grep docker)" ] ; then
note "docker didn't terminate as it should.
Will not clean cache to avoid file permission problems.
You can remove the new container with command:
docker rm -f $Containername
Afterwards, remove cache files with:
rm -R $Cachefolder
or let x11docker do the cleanup work for you:
x11docker --orphaned"
Preservecachefiles="yes"
else
note "docker container terminated successfully"
fi
}
}
;;
*) note "Found remaining background process.
Will send signal KILL to process tree of $Line
$(ps -p $Pid --no-headers)"
pkill -KILL -P $Pid || warning "error terminating $Pid $Name"
;;
esac
fi
done < <(tac $Bgpidfile ||:)
}
sleep 2 # a bit time to allow final messages in logfiles and for all processes to look for timetosaygoodbye
[ -e "$Logfile" ] && {
# do not use mv to avoid file permission issues
[ -d "$Cacherootfolder" ] && $Mksu "cp $Logfile $Logfile3"
rm $Logfile
}
[ -s "$Sharefolder/timetosaygoodbye" ] && Exitcode=1
[ "$Preservecontainer" = "yes" ] && Preservecachefiles="yes"
[ "$Preservecachefiles" = "no" ] && [ -n "$(echo $Cachefolder | grep .cache)" ] && [ -n "$(echo $Cachefolder | grep x11docker)" ] && [ "x11docker" != "$(basename $Cachefolder)" ] && rm -f -R $Cachefolder ||:
exit $Exitcode
}
verlte() { # version number checker $1 less than or equal $2
[ "${1:-}" = "$(echo -e "${1:-}\n${2:-}" | sort -V | head -n1)" ] && return 0 || return 1
}
verlt() { # version number checker $1 less than $2
[ "${1:-}" = "${2:-}" ] && return 1 || { verlte "${1:-}" "${2:-}" && return 0 || return 1 ; }
}
isnum() { # check if $1 is a number
[ "1" = "$(awk -v a="${1:-}" 'BEGIN {print (a == a + 0)}')" ]
}
writeaccess() { # check if useruid $1 has write access to folder $2
if read -a dirVals < <(stat -Lc "%U %G %A" ${2:-}) && (
( [ "$(id -u $dirVals)" == "${1:-}" ] && [ "${dirVals[2]:2:1}" == "w" ] ) ||
( [ "${dirVals[2]:8:1}" == "w" ] ) ||
( [ "${dirVals[2]:5:1}" == "w" ] && (
gMember=($(groups ${1:-} 2>/dev/null)) &&
[[ "${gMember[*]:2}" =~ ^(.* |)${dirVals[1]}( .*|)$ ]]
) ) )
then
return 0
else
[ "w" = "$(getfacl -pn "${2:-}" | grep user:${1:-}: | rev | cut -c2)" ] && return 0 || return 1 # should check for gid, too. Im too lazy.
fi
}
waitforfilecreation() { # similar to inotify-wait: wait up to 10s for file $1 to be created
# return 1 on timeout
# $1 file to wait for
Zeit=$(date +%s)
while [ ! "$(find ${1:-} 2>/dev/null)" ] ; do
sleep 0.2
[ 10 -lt $(expr $(date +%s) - $Zeit) ] && return 1
[ -e "$Sharefolder/timetosaygoodbye" ] && return 1
done
return 0
}
waitforfilecontent() { # wait for a file $1 to be not empty
# $1 file to look at
Zeit=$(date +%s)
while [ ! -s "$1" ] ; do
sleep 0.1
[ 10 -lt $(expr $(date +%s) - $Zeit) ] && return 1
[ -e "$Sharefolder/timetosaygoodbye" ] && return 1
done
return 0
}
waitforlogentry() { # wait for entry in logfile
# $1 is the application we are waiting for to be ready
# $2 points to logfile
# $3 keyword to wait for
# terminate x11docker on fail
### FIXME should return 1 on failure,error message by calling process
Zeit=$(date +%s)
while [ -z "$(cat ${2:-} | grep "${3:-}")" ] ; do
echo "waiting since $(expr $(date +%s) - $Zeit)s for ${1:-} to be ready..." >&2 && sleep 1
[ 20 -lt $(expr $(date +%s) - $Zeit) ] && { error "x11docker: Timeout error: ${1:-} not ready after 20 seconds." & break ; }
[ -e "$Sharefolder/timetosaygoodbye" ] && return 1
done
}
no_xhost() { # remove any access to X server granted by xhost
xhost
xhost | tail -n +2 /dev/stdin | while read -r Line ; do # read all but the first line (header)
xhost -$Line # disable every entry
done
xhost - # enable access control
[ "$(xhost | wc -l)" = "1" ] || { note "Remaining xhost permissions found on display $DISPLAY!
$(xhost)"
}
}
mkfile() { # create file $1 owned by $Hostuser
:> ${1:-}
chown $Hostuser ${1:-}
chgrp $(getent passwd $Hostuser | cut -d: -f4) ${1:-}
}
{ #### part: variables: default settings
trap finish EXIT
export IFS=$' \n\t' # set IFS to default
exec 3>&2 # second stderr channel
exec 4>&2 # stderr channel for --stderr
[ -n "$(tty | grep tty)" ] && Tty="yes" || Tty="no" # check if running on X or on tty
Exitcode="0"
# Logfiles
Mycookie=$(mcookie | cut -b1-6)
Logfile=/tmp/x11docker.$Mycookie.log # collection of all Logfiles. Stored in /tmp because cache is not ready yet
touch $Logfile && chmod 666 $Logfile
Logfile2=x11docker.log # live copy of $Logfile in $Sharefolder
Logfile3=x11docker.log # afterward copy of $Logfile in $Cacherootfolder
Bgpidfile=backgroundpids # file to store PidS and names of background processes that shut be killed on exit
# Users
Lognameuser="" # $(logname) or $SUDO_USER or $PKEXEC_USER
Hostuser="" # $Lognameuser or --hostuser. Unprivileged user for non-root commands
Hostuseruid=""
Hostusergid=""
Hostuserhome=""
Benutzer="" # option --user: container user. Default: same as $Hostuser.
Benutzeruid=""
Benutzergid=""
Benutzerhome=""
Benutzerpasswdentry=""
# Gaining root privileges to run docker
Passwordprompt="" # way to ask for password. one of pkexec, su, sudo, gksu, gksudo, auto
Getroot="" # prefix for commands needing root (only dockerrc script)
Pkexec="" # "pkexec" or empty
Sudo="" # "sudo" or empty
# Cache folders
Cacherootfolder="" # cache folder to store temporary files
Cachefolder=""
Sharefolder=share # subfolder for shared files
Cshare=/tmp/x11docker # mountpoint of $Sharefolder in container
# Parsed arguments
X11dockermode="run" # can be either "xonly", "run" or "exe", depends on options. while parsing, xonly changes to run or exe
X11dockerargs="$*" # arguments for x11docker
Imagename="" # name of image to run
Imagecommand="" # image command [+args]
Hostexe="" # can contain host executable
Dockeroptions="" # options for docker after -- and before image name
# docker variables
Containername="" # name of container set by x11docker to make --orphaned able to find orphaned containers
Dockerip="" # IP adress of docker interface
Dockeriprange="" # IP adress of docker interface including suffix /16
Dockerpid="" # process ID of docker container
Dockerdaemon="$(pgrep -xa $(ps -e -o comm | grep dockerd) 2>/dev/null)" # how docker daemon has been started
# docker related files
Dockerrc=dockerrc # init script run by docker. Creates $Imagecommandscript
Imagecommandscript=x11docker_CMD # name of shared script containing imagecommand
Createsudouser=createsudouser # script to create sudo user (option --sudouser)
Dockerlogfile=docker.log # file to log output of docker
Dockerpidfile=docker.pid # file to store process ID of docker
Containerip=container.ip # IP adress of container
Etcpasswd=passwd # created /etc/passwd for container
# X server config files, log files and such stuff
Xinitrc=xinitrc # file to store xinitrc commands
Xinitlogfile=xinit.log # file to log output of X server
Xtermrc=xtermrc # file to store xtermrc commands
Xtermlogfile=xterm.log # file to log output of xterm
Compositorlogfile=compositor.log # file to log output of Weston or KWin
Compositorpidfile=compositor.pid # process id of compositor
Xpraserverlogfile=xpraserver.log # logfile for xpra server
Westonini=weston.ini # config file for weston
Customwestonini="" # custom config file for weston
Xdummyconf=xdummy.xorg.conf # xorg.conf for dummy video driver
Xdummywrapper=Xdummywrapper # fork from xpra to wrap Xorg for Xdummy
Xservercookie=Xservercookie # file to store new X server cookies
Xclientcookie=Xclientcookie # file to store new X client cookies
# stdin stdout stderr
Cmdstdinfile=stdin # stdin for image command piped to x11docker
Cmdstdoutlogfile=stdout # stdout for image command
Cmdstderrlogfile=stderr # stderr for image command
# host environment
Hostdisplay="$DISPLAY" # store environment variable containing name of current display
Hostdisplaynumber="$(echo $Hostdisplay | cut -d: -f2 | cut -d. -f1)" # display number without ":" and ".0"
Hostxauthority="Xauthority-$Hostdisplaynumber" # file to store copy of $XAUTHORITY
[ -n "$Hostdisplay" ] && Hostxsocket="/tmp/.X11-unix/X$Hostdisplaynumber" || Hostxsocket="" # X socket from host, needed for --hostdisplay
# X server settings
Xserver="" # X server to use
Xcommand="" # command to start X server
Newdisplay="" # new display for new X server
Newdisplaynumber="" # Like Newdisplay, but without ':'
Newxsocket="" # New X socket
Newxenv="" # environment variables for new X server DISPLAY XAUTHORITY XSOCKET WAYLAND_DISPLAY
Newxvt="" # Virtual console to use for core new X server (>7)
#Newxlock="" # .Xn-lock - exists for running X server with socket n
Xserveroptions="" # options for new X server
Xpraoptions="" # options for xpra server and client
Xprashm="" # content XPRA_XSHM=0 disables usage of MIT-SHM in xpra
Xpraversion="" # $(xpra --version)
Nxagentoptions="" # options for nxagent
Xephyroptions="" # options for Xephyr
Xephyrglamor="yes" # former option '--glamor': enable Xephyr glamor 2D acceleration (deprecated, now always yes)
# Main X server options
Autochooseserver="yes" # option '--auto': automated choosing server
Desktopmode="" # option --desktop: image contains a desktop enironment.
Windowmanager="" # option '-w, --wm': window manager to use. if not given but needed, autodetection is used
Gpu="no" # option '--gpu': Use hardware accelerated OpenGL, share files in /dev/dri
# Screensize and related X server adjustments
Screensize="" # option --size XxY
Xaxis="" # virtual screen width
Yaxis="" # virtual screen height
Modeline="" # screen modeline, see "man cvt"
Fullscreen="no" # option '-f, --fullscreen': use fullscreen mode (Xephyr only)
Scaling="0" # option --scale: Scaling factor for xpra and weston
Rotation="" # option --rotate: Rotation for --weston and --weston-xwayland 0/90/180/270/flipped/flipped-90/..
Dpi="" # option --dpi: dots per inch to tell the clients.
Outputcount="1" # option --output-count, quantum of virtual screens for Weston and Xephyr
# Wayland and Weston
Compositorcommand="" # command to start Weston or KWin
Waylandsocket="" # Wayland socket for Xwayland in weston
Waylandtoolkitenv=("XDG_SESSION_TYPE=wayland GDK_BACKEND=wayland QT_QPA_PLATFORM=wayland-egl CLUTTER_BACKEND=wayland SDL_VIDEODRIVER=wayland ELM_DISPLAY=wl ELM_ACCEL=opengl ECORE_EVAS_ENGINE=wayland_egl")
Compositorpid="" # pid of weston or kwin
Westonoutput="" # Xn, WLn or monitor identifier
Westonoptions="" # options for Weston
Sharewayland="no" # option --sharewayland: Share wayland socket and WAYLAND_DISPLAY
Setwaylandenv="no" # option --setwaylandenv: Set environment variables $Waylandtoolkitenv
Dbuslaunch="no" # option '--dbus': run image command with dbus-launch
# Available terminal emulators
Passwordterminal="" # terminal emulator to use for password prompt (if no terminal emulator is needed, it will be 'bash -c')
Pullterminal="" # terminal emulator to show progress of 'docker pull'
Terminallist="" # list of possible terminal emulators. Only a few work on wayland
# regular options
Adduserhome="no" # option '-m, --home' (or '--homedir'): share a folder ~/.local/share/x11docker/Imagename with created container
Adduserhomefolder="" # " " : path to shared folder.
Sharevolumes="" # option --volume: host folders to share
Shareclipboard="no" # option '-c, --clipboard' enable clipboard sharing
Shareclipboardscript=clipboard.bash # " " script used for text clipboard sharing
Showdisplayenvironment="no" # option -E, --env: Show environment variables of new display
Customenvironment="" # option '--env': set custom environment variables
Pulseaudio="no" # " use pulseaudio yes/no
Pulseaudiotcpport="" # option '--pulseaudio': pulseaudio tcp port to use
Pulseaudiomoduleid="" # " number of customized pulseaudio tcp module, output of pactl
Noentrypoint="no" # option --no-entrypoint: disable entrypoint in image
# verbosity options
Verbose="no" # option '-v, --verbose': if "yes", be verbose
Showstdout="no" # option --stdout: show image command stdout
Showstderr="no" # option --stderr: show image command stderr
Silent="no" # option --silent: do not show messages
# developer options
Sudouser="no" # option --sudouser: Create user with sudo permissions without a password
Capdropall="yes" # option --cap-default: (don't) drop all container capabilities
Readwrite="no" # option --rw: allow read/write access to container root file system
Shareipc="no" # option --ipc, set --ipc=host.
Sharenet="no" # option --net, set --ipc=net
Preservecachefiles="no" # if yes, dont delete cache files
Preservecontainer="no" # option '-p, --ps': if yes, preserve container instead of removing it with 'docker run --rm'
# X authentication
Xauthentication="yes" # option '--no-auth' use cookie authentication yes/no
Trusted="yes" # create trusted or untrusted cookies, see --trusted and --untrusted. Important for --hostdisplay and --kwin-native
Forcetrusted="no" # option --trusted: enforce trusted cookies for --hostdisplay and --kwin-native
Noxhost="no" # option '--no-xhost': if yes, disable all X server access granted by xhost
Xhost="" # option '--xhost': xhost + on new X server
# special options not starting X or docker
Orphanedcheck="no" # option '--orphaned': check for non-removed containers and maybe root-owned files in cache
Createdesktopstarter="no" # option '--starter': create desktop starter and exit yes/no
Installermode="" # options --install/--update/--remove
# some temporary or loop variables
Pid=""
Name=""
Zeit=""
Line=""
Count=""
Byte=""
# these window managers are known to work well with x11docker (alphabetical order)(excluding $Wm_not_recommended and $Wm_ugly):
Wm_good="amiwm blackbox cinnamon compiz ctwm enlightenment fluxbox flwm fvwm"
Wm_good="$Wm_good jwm kwin lxsession mate-session mate-wm marco metacity notion olwm olvwm openbox ororobus pekwm"
Wm_good="$Wm_good sawfish twm wmaker w9wm xfwm4"
# these wm's are recommended and lightweight, but cannot show desktop options. best first:
Wm_recommended_nodesktop_light="sawfish xfwm4 metacity marco mate-wm "
# these wm's are recommended and heavy, but cannot show desktop options (especially exiting themselves). best first:
Wm_recommended_nodesktop_heavy="kwin compiz"
# these wm's are recommended, lightweight AND desktop independent. best first:
Wm_recommended_desktop_light="flwm blackbox fluxbox jwm mwm wmaker afterstep amiwm fvwm ctwm pekwm olwm olvwm openbox"
# these wm's are recommended, heavy AND desktop independent. best first:
Wm_recommended_desktop_heavy="lxsession mate-session enlightenment cinnamon"
# these wm's are not really useful (please don't hit me) (best first):
Wm_not_recommended="awesome mutter muffin gnome-shell evilwm herbstluftwm i3 lwm matchbox miwm spectrwm subtle windowlab wmii wm2"
# these wm's cannot be autodetected by wmctrl if they are already running
Wm_nodetect="aewm aewm++ afterstep awesome ctwm mwm miwm olwm olvwm sapphire windowlab wm2 w9wm"
# these wm's can cause problems (they can be beautiful, though):
Wm_ugly="icewm sapphire aewm aewm++"
# these wm's doesn't work:
Wm_bad="clfswm tinywm tritium"
# List of all working window managers, recommended first: (excluding $Wm_bad)
Wm_all="$Wm_recommended_nodesktop_light $Wm_recommended_nodesktop_heavy $Wm_recommended_desktop_light $Wm_recommended_desktop_heavy $Wm_good $Wm_ugly $Wm_not_recommended $Wm_nodetect"
}
{ #### part: parsing cli options
Shortoptions="aAbcdeEfgGhHKml:MnNoOpPrsSutvw:WxXyY"
Longoptions="auto,x,X,xpra,xephyr,x11,xorg,hostdisplay,xwayland,weston-xwayland,xpra-xwayland,nxagent" # X servers
Longoptions="$Longoptions,weston,hostwayland,kwin,kwin-xwayland,kwin-native,xdummy,xvfb,nothing" # more X/Wayland servers
Longoptions="$Longoptions,wm:,desktop,exe,xonly"
Longoptions="$Longoptions,fullscreen,size:,glamor,scale:,rotate:,dpi:,output-count:,gpu" # screen options
Longoptions="$Longoptions,user:,home,clipboard,pulseaudio" # comfort options
Longoptions="$Longoptions,verbose,no-xhost,trusted,untrusted,dbus,waylandenv,pw:" # advanced options
Longoptions="$Longoptions,starter,orphaned,license,licence,help,version,install,update,remove" # special options without starting X server
Longoptions="$Longoptions,xhost:,no-auth,vt:,display:,env:,showenv,sharewayland,stdout,stderr,silent" # developer options
Longoptions="$Longoptions,ipc,net,ps,cache,cap-default,no-entrypoint,sudouser,hostuser:,rw" # developer options
Longoptions="$Longoptions,cachedir:,homedir:,westonini:,sharedir:" # developer options