lxc-create(1) — Linux manual page


LXC-CREATE(1)                                                  LXC-CREATE(1)

NAME         top

       lxc-create - creates a container

SYNOPSIS         top

       lxc-create -n name [ -f config_file ]  -t template [ -B backingstore
       ]  [ -- template-options ]

DESCRIPTION         top

       lxc-create creates a system object where is stored the configuration
       information and where can be stored user information. The identifier
       name is used to specify the container to be used with the different
       lxc commands.

       The object is a directory created in /usr/local/var/lib/lxc and
       identified by its name.

       The object is the definition of the different resources an
       application can use or can see. The more the configuration file
       contains information, the more the container is isolated and the more
       the application is jailed.

       If the configuration file config_file is not specified, the container
       will be created with the default isolation: processes, sysv ipc and
       mount points.

OPTIONS         top

       -f, --config config_file
              Specify the configuration file to configure the virtualization
              and isolation functionalities for the container.

       -t, --template template
              'template' is the short name of an existing 'lxc-template'
              script that is called by lxc-create, eg. busybox, debian,
              fedora, ubuntu or sshd.  Refer to the examples in
              /usr/local/share/lxc/templates for details of the expected
              script structure.  Alternatively, the full path to an
              executable template script can also be passed as a parameter.
              "none" can be used to force lxc-create to skip rootfs

       -B, --bdev backingstore
              'backingstore' is one of 'dir', 'lvm', 'loop', 'btrfs', 'zfs',
              'rbd', or 'best'. The default is 'dir', meaning that the
              container root filesystem will be a directory under
              /usr/local/var/lib/lxc/container/rootfs.  This backing store
              type allows the optional --dir ROOTFS to be specified, meaning
              that the container rootfs should be placed under the specified
              path, rather than the default. (The 'none' backingstore type
              is an alias for 'dir'.) If 'btrfs' is specified, then the
              target filesystem must be btrfs, and the container rootfs will
              be created as a new subvolume. This allows snapshotted clones
              to be created, but also causes rsync --one-filesystem to treat
              it as a separate filesystem.  If backingstore is 'lvm', then
              an lvm block device will be used and the following further
              options are available: --lvname lvname1 will create an LV
              named lvname1 rather than the default, which is the container
              name. --vgname vgname1 will create the LV in volume group
              vgname1 rather than the default, lxc.  --thinpool thinpool1
              will create the LV as a thin-provisioned volume in the pool
              named thinpool1 rather than the default, lxc.  --fstype FSTYPE
              will create an FSTYPE filesystem on the LV, rather than the
              default, which is ext4.  --fssize SIZE will create a LV (and
              filesystem) of size SIZE rather than the default, which is 1G.

              If backingstore is 'loop', you can use --fstype FSTYPE and
              --fssize SIZE as 'lvm'. The default values for these options
              are the same as 'lvm'.

              If backingstore is 'rbd', then you will need to have a valid
              configuration in ceph.conf and a ceph.client.admin.keyring
              defined.  You can specify the following options : --rbdname
              RBDNAME will create a blockdevice named RBDNAME rather than
              the default, which is the container name.  --rbdpool POOL will
              create the blockdevice in the pool named POOL, rather than the
              default, which is 'lxc'.

              If backingstore is 'best', then lxc will try, in order, btrfs,
              zfs, lvm, and finally a directory backing store.

       -- template-options
              This will pass template-options to the template as arguments.
              To see the list of options supported by the template, you can
              run lxc-create -t TEMPLATE -h.

COMMON OPTIONS         top

       These options are common to most of lxc commands.

       -?, -h, --help
              Print a longer usage message than normal.

              Give the usage message

       -q, --quiet
              mute on

       -P, --lxcpath=PATH
              Use an alternate container path. The default is

       -o, --logfile=FILE
              Output to an alternate log FILE. The default is no log.

       -l, --logpriority=LEVEL
              Set log priority to LEVEL. The default log priority is ERROR.
              Possible values are : FATAL, CRIT, WARN, ERROR, NOTICE, INFO,

              Note that this option is setting the priority of the events
              log in the alternate log file. It do not have effect on the
              ERROR events log on stderr.

       -n, --name=NAME
              Use container identifier NAME.  The container identifier
              format is an alphanumeric string.

              Specify the configuration file to configure the virtualization
              and isolation functionalities for the container.

              This configuration file if present will be used even if there
              is already a configuration file present in the previously
              created container (via lxc-create).

              Show the version number.

DIAGNOSTIC         top

       The container already exists
              As the message mention it, you try to create a container but
              there is a container with the same name. You can use the lxc-
              ls command to list the available containers on the system.

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

       Daniel Lezcano <daniel.lezcano@free.fr>

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 ⟨git://github.com/lxc/lxc⟩ on
       2020-11-01.  (At that time, the date of the most recent commit that
       was found in the repository was 2020-10-28.)  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

                                 2020-11-01                    LXC-CREATE(1)

Pages that refer to this page: lxc-attach(1)lxc-autostart(1)lxc-cgroup(1)lxc-checkconfig(1)lxc-checkpoint(1)lxc-config(1)lxc-console(1)lxc-copy(1)lxc-create(1)lxc-destroy(1)lxc-device(1)lxc-execute(1)lxc-freeze(1)lxc-info(1)lxc-ls(1)lxc-monitor(1)lxc-snapshot(1)lxc-start(1)lxc-stop(1)lxc-top(1)lxc-unfreeze(1)lxc-unshare(1)lxc-update-config(1)lxc-usernsexec(1)lxc-wait(1)lxc.container.conf(5)lxc.system.conf(5)lxc(7)