nixpkgs/nixos/modules/virtualisation/container-config.nix
2014-04-16 01:44:43 +02:00

110 lines
3.2 KiB
Nix
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

{ config, pkgs, lib, ... }:
with lib;
{
config = mkIf config.boot.isContainer {
sound.enable = mkDefault false;
# Provide a login prompt on /var/lib/login.socket. On the host,
# you can connect to it by running socat
# unix:<path-to-container>/var/lib/login.socket -,echo=0,raw.
systemd.sockets.login =
{ description = "Login Socket";
wantedBy = [ "sockets.target" ];
socketConfig =
{ ListenStream = "/var/lib/login.socket";
SocketMode = "0666";
Accept = true;
};
};
systemd.services."login@" =
{ description = "Login %i";
environment.TERM = "linux";
serviceConfig =
{ Type = "simple";
StandardInput = "socket";
ExecStart = "${pkgs.socat}/bin/socat -t0 - exec:${pkgs.shadow}/bin/login,pty,setsid,setpgid,stderr,ctty";
TimeoutStopSec = 1; # FIXME
};
restartIfChanged = false;
};
# Also provide a root login prompt on /var/lib/root-login.socket
# that doesn't ask for a password. This socket can only be used by
# root on the host.
systemd.sockets.root-login =
{ description = "Root Login Socket";
wantedBy = [ "sockets.target" ];
socketConfig =
{ ListenStream = "/var/lib/root-login.socket";
SocketMode = "0600";
Accept = true;
};
};
systemd.services."root-login@" =
{ description = "Root Login %i";
environment.TERM = "linux";
serviceConfig =
{ Type = "simple";
StandardInput = "socket";
ExecStart = "${pkgs.socat}/bin/socat -t0 - \"exec:${pkgs.shadow}/bin/login -f root,pty,setsid,setpgid,stderr,ctty\"";
TimeoutStopSec = 1; # FIXME
};
restartIfChanged = false;
};
# Provide a daemon on /var/lib/run-command.socket that reads a
# command from stdin and executes it.
systemd.sockets.run-command =
{ description = "Run Command Socket";
wantedBy = [ "sockets.target" ];
socketConfig =
{ ListenStream = "/var/lib/run-command.socket";
SocketMode = "0600"; # only root can connect
Accept = true;
};
};
systemd.services."run-command@" =
{ description = "Run Command %i";
environment.TERM = "linux";
serviceConfig =
{ Type = "simple";
StandardInput = "socket";
TimeoutStopSec = 1; # FIXME
};
script =
''
#! ${pkgs.stdenv.shell} -e
source /etc/bashrc
read c
eval "command=($c)"
exec "''${command[@]}"
'';
restartIfChanged = false;
};
systemd.services.container-startup-done =
{ description = "Container Startup Notification";
wantedBy = [ "multi-user.target" ];
after = [ "multi-user.target" ];
script =
''
if [ -p /var/lib/startup-done ]; then
echo done > /var/lib/startup-done
fi
'';
serviceConfig.Type = "oneshot";
serviceConfig.RemainAfterExit = true;
restartIfChanged = false;
};
};
}