lxc-create(1)
NAME
lxc-create - creates a container
SYNOPSIS
lxc-create {-n name} [-f config_file] {-t template} [-B backingstore]
[-- template-options]
DESCRIPTION
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 /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
-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/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 creation.
-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
/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
These options are common to most of lxc commands.
-?, -h, --help
Print a longer usage message than normal.
--usage
Give the usage message
-q, --quiet
mute on
-P, --lxcpath=PATH
Use an alternate container path. The default is /var/lib/lxc.
-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,
DEBUG.
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.
--rcfile=FILE
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).
--version
Show the version number.
DIAGNOSTIC
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
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
Daniel Lezcano <daniel.lezcano@free.fr>
2017-01-04 lxc-create(1)
Opportunity
Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.
Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.
Free Software
Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.
Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.
Free Books
The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.
Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.
Education
Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.
Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.
