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howtos:misc:lxc [2018/10/19 22:01 (UTC)]
mralk3 [Custom Container Boot Process]
howtos:misc:lxc [2019/12/28 02:28 (UTC)] (current)
montagdude Move running GUI applications section out of Configuration section
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 Note that the second path intentionally lacks a leading slash. This is because it is a relative path -- relative to the container'​s rootfs. Once you start the container again and log in, you should see that the directory has been mounted at /​home/​container_user/​foo. In general, it is best if the username on the host is the same as the container'​s username, because it avoids any conflicts in file ownership between the host and container user. Note that the second path intentionally lacks a leading slash. This is because it is a relative path -- relative to the container'​s rootfs. Once you start the container again and log in, you should see that the directory has been mounted at /​home/​container_user/​foo. In general, it is best if the username on the host is the same as the container'​s username, because it avoids any conflicts in file ownership between the host and container user.
 +
 +===== Running GUI Applications =====
 +
 +Without taking additional steps, it will not be possible to run GUI applications installed in the container. The simplest way to accomplish this is to run them using SSH with X forwarding to the host. However, there are still a few steps required to make this happen. In the container, in /​etc/​ssh/​sshd_config,​ set the following:
 +
 +<​code>​
 +X11Forwarding yes                                                                                                                      ​
 +X11UseLocalhost yes
 +</​code>​
 +
 +This will allow X forwarding via SSH from the container. (Note: X11UseLocalhost yes is required; otherwise X will give an error about the DISPLAY not existing.) It is also necessary to bind-mount the host's /​tmp/​.X11-unix directory in the container. Add this line to the container'​s config file ($lxcpath/​container_name/​config):​
 +
 +<​code>​
 +lxc.mount.entry = /​tmp/​.X11-unix tmp/​.X11-unix none bind,​optional,​create=dir
 +</​code>​
 +
 +Next, restart the container. Upon restart, use `lxc-ls --fancy` to determine the container'​s IP address. You can then run GUI apps from the container as follows:
 +
 +<​code>​
 +ssh -Y user@IP appname
 +</​code>​
 +
 +This is probably the simplest way to run GUI apps in the container. However, more advanced usage is possible, including using LXC to "​sandbox"​ applications in an unprivileged container and/or running GUI applications directly in the container without connecting over SSH. For more information,​ the following page is a good start:
 +
 +[[https://​stgraber.org/​2014/​02/​09/​lxc-1-0-gui-in-containers/​|LXC 1.0: GUI in containers [9/10]]]
  
 ====== See Also ====== ====== See Also ======
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 [[https://​www.linuxquestions.org/​questions/​slackware-14/​starting-lxc-container-in-slackware-14-2-a-4175614421/​|LQ thread]] [[https://​www.linuxquestions.org/​questions/​slackware-14/​starting-lxc-container-in-slackware-14-2-a-4175614421/​|LQ thread]]
 +
 +[[https://​stgraber.org/​2014/​02/​09/​lxc-1-0-gui-in-containers/​|LXC 1.0: GUI in containers [9/10]]]
  
 ====== Sources ====== ====== Sources ======

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