lxc-autostart(1) — Linux manual page


lxc-autostart(1)                                        lxc-autostart(1)

NAME         top

       lxc-autostart - start/stop/kill auto-started containers

SYNOPSIS         top

       lxc-autostart [-k] [-L] [-r] [-s] [-a] [-A] [-g groups] [-t

DESCRIPTION         top

       lxc-autostart processes containers with lxc.start.auto set. It
       lets the user start, shutdown, kill, restart containers in the
       right order, waiting the right time. Supports filtering by
       lxc.group or just run against all defined containers. It can also
       be used by external tools in list mode where no action will be
       performed and the list of affected containers (and if relevant,
       delays) will be shown.

       The [-r], [-s] and [-k] options specify the action to perform.
       If none is specified, then the containers will be started.  [-a]
       and [-g] are used to specify which containers will be affected.
       By default only containers without a lxc.group set will be
       affected.  [-t TIMEOUT] specifies the maximum amount of time to
       wait for the container to complete the shutdown or reboot.

OPTIONS         top

              Request a reboot of the container.

              Request a clean shutdown. If a [-t timeout] greater than 0
              is given and the container has not shut down within this
              period, it will be killed as with the [-k kill] option.

              Rather than requesting a clean shutdown of the container,
              explicitly kill all tasks in the container.

              Rather than performing the action, just print the
              container name and wait delays until starting the next

       -t,--timeout TIMEOUT
              Wait TIMEOUT seconds before hard-stopping the container.

       -g,--groups GROUP
              Comma separated list of groups to select (defaults to
              those without a lxc.group - the NULL group).  This option
              may be specified multiple times and the arguments
              concatenated. The NULL or empty group may be specified as
              a leading comma, trailing comma, embedded double comma, or
              empty argument where the NULL group should be processed.
              Groups are processed in the order specified on the command
              line. Multiple invocations of the -g option may be freely
              intermixed with the comma separated lists and will be
              combined in specified order.

              Ignore lxc.group and select all auto-started containers.

              Ignore the lxc.start.auto flag. Combined with -a, will
              select all containers on the system.


       The lxc-autostart command is used as part of the LXC system
       service, when enabled to run on host system at bootup and at
       shutdown. It's used to select which containers to start in what
       order and how much to delay between each startup when the host
       system boots.

       Each container can be part of any number of groups or no group at
       all.  Two groups are special. One is the NULL group, i.e. the
       container does not belong to any group. The other group is the
       "onboot" group.

       When the system boots with the LXC service enabled, it will first
       attempt to boot any containers with lxc.start.auto == 1 that is a
       member of the "onboot" group. The startup will be in order of
       lxc.start.order.  If an lxc.start.delay has been specified, that
       delay will be honored before attempting to start the next
       container to give the current container time to begin
       initialization and reduce overloading the host system. After
       starting the members of the "onboot" group, the LXC system will
       proceed to boot containers with lxc.start.auto == 1 which are not
       members of any group (the NULL group) and proceed as with the
       onboot group.


       -g "onboot,"
              Start the "onboot" group first then the NULL group.

              This is the equivalent of: -g onboot -g "".

       -g "dns,web,,onboot"
              Starts the "dns" group first, the "web" group second, then
              the NULL group followed by the "onboot" group.

              This is the equivalent of: -g dns,web -g ,onboot or -g dns
              -g web -g "" -g onboot.

SEE ALSO         top

       lxc(7), lxc-create(1), lxc-copy(1), lxc-destroy(1), lxc-start(1),
       lxc-stop(1), lxc-execute(1), lxc-console(1), lxc-monitor(1),
       lxc-wait(1), lxc-cgroup(1), lxc-ls(1), lxc-info(1),
       lxc-freeze(1), lxc-unfreeze(1), lxc-attach(1), lxc.conf(5)

AUTHOR         top

       Stéphane Graber <stgraber@ubuntu.com>

COLOPHON         top

       This page is part of the lxc (Linux containers) project.
       Information about the project can be found at 
       ⟨http://linuxcontainers.org/⟩.  If you have a bug report for this
       manual page, send it to lxc-devel@lists.linuxcontainers.org.
       This page was obtained from the project's upstream Git repository
       ⟨https://github.com/lxc/lxc.git⟩ on 2023-12-22.  (At that time,
       the date of the most recent commit that was found in the
       repository was 2023-12-18.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

                               2022-06-16               lxc-autostart(1)