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* Added a "xendomains" job to automatically start the domains defined

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in /etc/xen/auto at boot time, to save all running domains during
  shutdown, and to restore all saved domains at boot time.

svn path=/nixos/trunk/; revision=24121
This commit is contained in:
Eelco Dolstra 2010-10-06 16:07:16 +00:00
parent 102a1e15ba
commit cda2e41c01
2 changed files with 34 additions and 2 deletions
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6
modules/system/activation/switch-to-configuration.sh
View File

@ -110,7 +110,11 @@ EOF
# forget about current sessions.
# Idem for the emergeny-shell, because its `console owner'
# line screws up the X server.
if echo "$job" | grep -q "^shutdown$\|^control-alt-delete$\|^xserver$\|^dbus$\|^disnix$\|^emergency-shell$"; then continue; fi
# Idem for xendomains because we don't want to save/restore
# Xen domains unless we have to.
# TODO: Jobs should be able to declare that they should not be
# auto-restarted.
if echo "$job" | grep -q "^shutdown$\|^control-alt-delete$\|^xserver$\|^dbus$\|^disnix$\|^emergency-shell$\|^xendomains$"; then continue; fi
if ! test -e "$oldJobs/$job.conf"; then
echo "starting $job..."

30
modules/virtualisation/xen-dom0.nix
View File

@ -108,11 +108,39 @@ in
pkgs.utillinux pkgs.bash xen pkgs.pciutils pkgs.procps
];
preStart = "${xen}/sbin/xend start";
preStart =
''
${xen}/sbin/xend start
# Wait until Xend is running.
for ((i = 0; i < 60; i++)); do echo "waiting for xend..."; ${xen}/sbin/xend status && break; done
${xen}/sbin/xend status || exit 1
'';
postStop = "${xen}/sbin/xend stop";
};
jobs.xendomains =
{ description = "Automatically starts, saves and restores Xen domains on startup/shutdown";
startOn = "started xend";
stopOn = "starting shutdown and stopping xend";
path = [ pkgs.xen ];
environment.XENDOM_CONFIG = "${xen}/etc/sysconfig/xendomains";
preStart =
''
mkdir -p /var/lock/subsys -m 755
${xen}/etc/init.d/xendomains start
'';
postStop = "${xen}/etc/init.d/xendomains stop";
};
# To prevent a race between dhclient and xend's bridge setup
# script (which renames eth* to peth* and recreates eth* as a
# virtual device), start dhclient after xend.