bmullan.mail's picture

Finally got back around to looking at Turnkey LXC.

My host is ubuntu 14.04 on which I already do alot with lxc and somewhat with Docker.

I followed the example writeup for wordpress.

Created the /root/inithooks file with appropriate entries

Created an lxc-turnkey template in Ubuntu's  /usr/share/lxc/templates

Next I figured I could just try the example lxc-create command from the Turnkey documentation:

$ sudo lxc-create -n wp1 -t turnkey -- wordpress -i /root/inithooks.conf -l natbr0 -x http://192.168.121.1:3124

but this generated these error messages:

getopt: unrecognized option '--rootfs=/var/lib/lxc/wp1/rootfs'
lxc_container: container creation template for wp1 failed
lxc_container: Error creating container wp1
 

I know I can use the lxc-create -n turnkey -h command to get output from Turnkey's template about all the options it supports:

$ lxc-create -t turnkey -h
Usage: lxc-create --name=NAME [-w] [-r] [-t template] [-P lxcpath]

lxc-create creates a container

Options :
  -n, --name=NAME    NAME for name of the container
  -f, --config=file  Initial configuration file
  -t, --template=t   Template to use to setup container
  -B, --bdev=BDEV    Backing store type to use
  -P, --lxcpath=PATH Place container under PATH
  --lvname=LVNAME    Use LVM lv name LVNAME
                     (Default: container name)
  --vgname=VG        Use LVM vg called VG
                     (Default: lxc)
  --thinpool=TP      Use LVM thin pool called TP
                     (Default: lxc)
  --fstype=TYPE      Create fstype TYPE
                     (Default: ext3)
  --fssize=SIZE[U]   Create filesystem of size SIZE * unit U (bBkKmMgGtT)
                     (Default: 1G, default unit: M)
  --dir=DIR   Place rootfs directory under DIR
  --zfsroot=PATH     Create zfs under given zfsroot
                     (Default: tank/lxc)

Common options :
  -o, --logfile=FILE               Output log to FILE instead of stderr
  -l, --logpriority=LEVEL          Set log priority to LEVEL
  -q, --quiet                      Don't produce any output
  -P, --lxcpath=PATH               Use specified container path
  -?, --help                       Give this help list
      --usage                      Give a short usage message
      --version                    Print the version number

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

See the lxc-create man page for further information.

TurnKey LXC Template Syntax: appname [options]

Arguments::

appname Appliance name (e.g., core)

Options::

-a --arch= Appliance architecture (default: hosts architecture)
-v --version= Appliance version (default: 13.0-wheezy)
-c --cachedir= Path to appliance cache (default: /var/cache/lxc/turnkey)
-x --aptproxy= Address of APT Proxy (e.g., http://192.168.121.1:3142)

-i --inithooks= Path to inithooks.conf (e.g., /root/inithooks.conf)
Reference: http://www.turnkeylinux.org/docs/inithooks

-l --netlink= Value of lxc.network.link (default: br0)
Specify none to omit network configuration

Required options (passed automatically by lxc-create):

-n --name= container name ($lxc_name)
-p --path= container path ($lxc_path/$lxc_name)

Example usage::

lxc-create -n core -t turnkey -- core -i /root/inithooks.conf

Like the error message above I do not see - -rootfs listed in the options for lxc-turkey template either but I was wondering if the intent was to use - -dir

 

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Jeremy Davis's picture

TBH I'm still yet to play with the LXC builds so I can't offer any real advice or guidance. However your research appears sound. Have you tried it using the --dir switch instead?

Robin's picture

Docker are creating the biggest linux image database with the Docker Hub. It seemed to me that this images shouldn't be Docker only and that LXC could really benefit from it. I wrote this little tool that let anyone download images from the Docker Hub and use them with LXC. So go on the Docker Hub, find the Turnkey Linux you are interested it, download it with dlrootfs and use it with LXC !

Jeremy Davis's picture

Cool idea and thanks for sharing. :)

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