This project provides
- Text workstation base for developers
- GUI Workstation based on Text workstation
This Dockerfile creates a docker image and once it's executed it creates a container that runs X11 and SSH services.
SSH is available to connect the included Xpra server to setup X Windows sessions.
Xpra "is like screen for X"
- Xpra + Xorg or Xpra+Xvfb provide Xwindows environment inside the container
- Xpra allows for connections, similar to VNC, but provides a rootless window
- Xpra client provides local Xwindows server for diplay of apps
- Xpra provides detach/reattach capabilities for the Xwindows session
- Xpra also uses a custom protocol that is self-tuning and relatively latency-insensitive, and thus is usable over worse links than standard X.
- Xpra allows connection via SSH or simple TCP or TCP+AES encryption
- This image uses TCP only, by default, and presumes the use of encrypted VPN
The client machine needs to have a X11 server installed (Xpra). See the "Notes" below.
The applications are served rootless, so the client machine manages the windows that are displayed.
This is a large kitchen-sink image intended to support developers working on cloud infrastructure
We include an ssh server to allow xpra connection setup over ssh
Default is to setup connections over TCP to enhance OSX connections via VPN
- most VPN clients appear to break xpra setup over ssh, but with encryption on VPN, this is ok
- build tools: make cmake, automake, etc - git, git-flow toolchain
- eclipse (4.3)
- nautilus (for smartgit integration)
- pidgin (for alternative to weechat
This example uses TCP connection which is avilable in ./docker-desktop by default, for use over VPN
see below for commandline ssh connection
On application server
docker pull guruvan/desktop-gui docker run -d --name username_desktop -p 1337:22 -p 9001:9000 guruvan/desktop-base docker-enter username_desktop su - docker echo "your_sekrit_passwd" > ~/.xprapass ./docker-desktop -d 10
On local display server, use Xpra Launcher app to connect to port 9000 of that host
with the password you set above
###Running the docker image created (-d: detached mode, -P: expose the port 22 on the host machine)
$ docker run --name username_desktop -d -P [username]/docker-desktop
$ docker run --name username_desktop -d -p 9999:22 -p 9001:9000 guruvan/desktop-base
The TCP port is bound after starting the container, so must be mapped explicitly on the commandline to start the container - if you're only using SSH for connections (generally recommended) then you may omit the port 9000 map, and/or use the "-P" to map all ports to the next available in Docker's port group.
###Getting the password generated during runtime
If using in production, it is wise to change this!!
$ echo $(docker logs $CONTAINER_ID | sed -n 1p) User: docker Password: xxxxxxxxxxxx # where xxxxxxxxxxxx is the password created by PWGen that contains at least one capital letter and one number
###Getting the container's external ssh port
$ docker port username_desktop 22 49153 # This is the external port that forwards to the ssh service running inside of the container as port 22
###Connecting to the container
If you have access, docker-enter is the simplest way to access your container, or you may use the included ssh server
- Wise users will change the password and install a private SSH key into /home/docker/.ssh/authorized_keys
docker run -it --rm -v /usr/local/bin:/target jpetazzo/nsenter
Then enter the container
####Starting the a new session
$ ifconfig | grep "inet addr:" inet addr:192.168.56.102 Bcast:192.168.56.255 Mask:255.255.255.0 # This is the LAN's IP for this machine $ ssh email@example.com -p 49153 "sh -c './docker-desktop -s 800x600 -d 10 > /dev/null 2>&1 &'" # Here is where we use the external port firstname.lastname@example.org's password: xxxxxxxxxxxx $ ./docker-desktop -h ----------------------------------------------------------- Usage: docker-desktop [-s screen_size] [-d session_number] -s : screen resolution (Default = 800x600 -d : session number (Default = 10) -h : help -----------------------------------------------------------
####Attaching to the session started
$ xpra --ssh="ssh -p 49153" attach ssh:email@example.com:10 # user@ip_address:session_number firstname.lastname@example.org's password: xxxxxxxxxxxx
If you want to execute rootless programs, you just need to connect to the container via ssh and type:
DISPLAY=:[session_number] [program_name] &
Eg. DISPLAY=:10 firefox &
- Xpra <= 14.0 (https://www.xpra.org/dists/windows/)
- Path: C:\Program Files(x86)\Xpra\Xpra_cmd.exe
###On OS X:
- Xpra Version <= 14.0 (https://www.xpra.org/dists/osx/x86/)
- Path: /Applications/Xpra.app/Contents/Helpers/xpra
- Xpra: You can use apt-get to install it -> apt-get install xpra
- Path: /usr/bin/xpra