1lxc-autostart(1) lxc-autostart(1)
2
6 lxc-autostart - start/stop/kill auto-started containers
7
9 lxc-autostart [-k] [-L] [-r] [-s] [-a] [-A] [-g groups] [-t timeout]
10
12 lxc-autostart processes containers with lxc.start.auto set. It lets the
13 user start, shutdown, kill, restart containers in the right order,
14 waiting the right time. Supports filtering by lxc.group or just run
15 against all defined containers. It can also be used by external tools
16 in list mode where no action will be performed and the list of affected
17 containers (and if relevant, delays) will be shown.
18 The [-r], [-s] and [-k] options specify the action to perform. If none
20 is specified, then the containers will be started. [-a] and [-g] are
21 used to specify which containers will be affected. By default only con‐
22 tainers without a lxc.group set will be affected. [-t TIMEOUT] speci‐
23 fies the maximum amount of time to wait for the container to complete
24 the shutdown or reboot.
25
27 -r,--reboot
28 Request a reboot of the container.
29 -s,--shutdown
31 Request a clean shutdown. If a [-t timeout] greater than 0 is
32 given and the container has not shut down within this period, it
33 will be killed as with the [-k kill] option.
34 -k,--kill
36 Rather than requesting a clean shutdown of the container, ex‐
37 plicitly kill all tasks in the container.
38 -L,--list
40 Rather than performing the action, just print the container name
41 and wait delays until starting the next container.
42 -t,--timeout TIMEOUT
44 Wait TIMEOUT seconds before hard-stopping the container.
45 -g,--group GROUP
47 Comma separated list of groups to select (defaults to those
48 without a lxc.group - the NULL group). This option may be spec‐
49 ified multiple times and the arguments concatenated. The NULL or
50 empty group may be specified as a leading comma, trailing comma,
51 embedded double comma, or empty argument where the NULL group
52 should be processed. Groups are processed in the order speci‐
53 fied on the command line. Multiple invocations of the -g option
54 may be freely intermixed with the comma separated lists and will
55 be combined in specified order.
56 -a,--all
58 Ignore lxc.group and select all auto-started containers.
59 -A,--ignore-auto
61 Ignore the lxc.start.auto flag. Combined with -a, will select
62 all containers on the system.
63
65 The lxc-autostart command is used as part of the LXC system service,
66 when enabled to run on host system at bootup and at shutdown. It's used
67 to select which containers to start in what order and how much to delay
68 between each startup when the host system boots.
69 Each container can be part of any number of groups or no group at all.
71 Two groups are special. One is the NULL group, i.e. the container does
72 not belong to any group. The other group is the "onboot" group.
73 When the system boots with the LXC service enabled, it will first at‐
75 tempt to boot any containers with lxc.start.auto == 1 that is a member
76 of the "onboot" group. The startup will be in order of lxc.start.order.
77 If an lxc.start.delay has been specified, that delay will be honored
78 before attempting to start the next container to give the current con‐
79 tainer time to begin initialization and reduce overloading the host
80 system. After starting the members of the "onboot" group, the LXC sys‐
81 tem will proceed to boot containers with lxc.start.auto == 1 which are
82 not members of any group (the NULL group) and proceed as with the on‐
83 boot group.
84
86 -g "onboot,"
87 Start the "onboot" group first then the NULL group.
88 This is the equivalent of: -g onboot -g "".
90 -g "dns,web,,onboot"
92 Starts the "dns" group first, the "web" group second, then the
93 NULL group followed by the "onboot" group.
94 This is the equivalent of: -g dns,web -g ,onboot or -g dns -g
96 web -g "" -g onboot.
97
99 lxc(7), lxc-create(1), lxc-copy(1), lxc-destroy(1), lxc-start(1), lxc-
100 stop(1), lxc-execute(1), lxc-console(1), lxc-monitor(1), lxc-wait(1),
101 lxc-cgroup(1), lxc-ls(1), lxc-info(1), lxc-freeze(1), lxc-unfreeze(1),
102 lxc-attach(1), lxc.conf(5)
103
105 Stéphane Graber <stgraber@ubuntu.com>
106 2020-01-29 lxc-autostart(1)