hello,
i am new to lxc, i have created a lxc container on fedora 19
i created a container rootfs of fedora 19 by using
yum --installroot=/containers/test1 --releasever=19 install openssh
test1.xml file for container test1
<domain type="lxc">
<name>test1</name>
<vcpu placement="static">1</vcpu>
<cputune>
<shares>1024</shares>
<period>1000000</period>
</cputune>
<memtune>
<hard_limit unit="M">1024</hard_limit>
<soft_limit unit="M">128</soft_limit>
<min_guarantee unit="M">64</min_guarantee>
</memtune>
<blkiotune>
<weight>800</weight>
</blkiotune>
<memory unit="KiB">102400</memory>
<os>
<type>exe</type>
<init>/bin/bash</init>
</os>
<clock offset="utc"/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/libexec/libvirt_lxc</emulator>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/"/>
<target dir="/"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/var"/>
<target dir="/var"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/dev"/>
<target dir="/dev"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/root"/>
<target dir="/root"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/home"/>
<target dir="/home"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/opt"/>
<target dir="/opt"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/media"/>
<target dir="/media"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/bin"/>
<target dir="/bin"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/lib64"/>
<target dir="/lib64"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/etc"/>
<target dir="/etc"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/lib"/>
<target dir="/lib"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/run"/>
<target dir="/run"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/srv"/>
<target dir="/srv"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/sys"/>
<target dir="/sys"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/tmp"/>
<target dir="/tmp"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/boot"/>
<target dir="/boot"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/usr"/>
<target dir="/usr"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/mnt"/>
<target dir="/mnt"/>
</filesystem>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/test1/sbin"/>
<target dir="/sbin"/>
</filesystem>
<interface type="bridge">
<source bridge="br0"/>
</interface>
<console port="0" type="pty"/>
</devices>
</domain>
the host network files:
/etc/sysconfig/network-script/ifcfg-br0
DEVICE="br0"
TYPE="Bridge"
USERCTL="no"
BOOTPROTO="dhcp"
ONBOOT="yes"
NM_CONTROLLED="no"
/etc/sysconfig/network-script/ifcfg-p2p1
DEVICE="p2p1"
BOOTPROTO="dhcp"
BRIDGE="br0"
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Ethernet"
the fstab of host
#
# /etc/fstab
# Created by anaconda on Fri Jul 26 05:26:08 2013
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=b49ce5dc-afb7-4c8e-9487-c1ed101d9166 / ext4
defaults 1 1
UUID=3dfa07fd-a06b-4a1a-a3fd-4e2f5e0d0e6a /boot ext4
defaults 1 2
UUID=3d1cb255-721a-48d2-b2e9-86f52b5fbec6 swap swap
defaults 0 0
none /sys/fs/cgroup cgroup defaults 0 0
when i try to start the container using virsh i get error
virsh --connect lxc://
virsh # define /containers/test1/test1.xml
Domain test1 defined from /containers/test1/test1.xml
virsh # start test1
error: Failed to start domain test1
error: internal error guest failed to start: PATH=/bin:/sbin TERM=linux
container=lxc-libvirt container_uuid=05a7239d-f610-4ae9-ad47-4bf47f2f9b54
LIBVIRT_LXC_UUID=05a7239d-f610-4ae9-ad47-4bf47f2f9b54
LIBVIRT_LXC_NAME=test1 /bin/lxc_defaultinit.sh
Unable to send container continue message: Broken pipe
has anyone face the same problem with fedora 19.
can anyone guide me..
Thanks,
Aarti Sawant
Daniel P. Berrange
2013-Jul-31 09:33 UTC
Re: [libvirt-users] start lxc container on fedora 19
On Wed, Jul 31, 2013 at 12:46:58PM +0530, Aarti Sawant wrote:> hello, > > i am new to lxc, i have created a lxc container on fedora 19 > i created a container rootfs of fedora 19 by using > yum --installroot=/containers/test1 --releasever=19 install openssh > > test1.xml file for container test1 > <domain type="lxc"> > <name>test1</name> > <vcpu placement="static">1</vcpu> > <cputune> > <shares>1024</shares> > <period>1000000</period> > </cputune> > <memtune> > <hard_limit unit="M">1024</hard_limit> > <soft_limit unit="M">128</soft_limit> > <min_guarantee unit="M">64</min_guarantee> > </memtune> > <blkiotune> > <weight>800</weight> > </blkiotune> > <memory unit="KiB">102400</memory> > <os> > <type>exe</type> > <init>/bin/bash</init> > </os> > <clock offset="utc"/> > <on_poweroff>destroy</on_poweroff> > <on_reboot>restart</on_reboot> > <on_crash>destroy</on_crash> > <devices> > <emulator>/usr/libexec/libvirt_lxc</emulator> > <filesystem accessmode="passthrough" type="mount"> > <source dir="/containers/test1/"/> > <target dir="/"/> > </filesystem>> <filesystem accessmode="passthrough" type="mount"> > <source dir="/containers/test1/var"/> > <target dir="/var"/> > </filesystem>....snip more <filesystem> elements... Why are you adding all these sub-mounts for /var, /dev, etc, etc? You installed the entire OS tree into /containers/test1, so it should be sufficient to just have that first <filesystem> entry for '/'. You'd only want to add extra mounts for /var, etc if the directory on the host came from somewhere outside the /containers/test1 location. NB, also libvirt sets up /dev - you shouldn't try to override it, or you'll loose access to the pre-populate device nodes, which is probably what's causing your failure.> <interface type="bridge"> > <source bridge="br0"/> > </interface> > <console port="0" type="pty"/> > </devices> > </domain>Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
Thanks Daniel for suggestion, i have made changes in my xml script.
I am able to set up lxc container on fedora 18
i created a container using yum
yum --installroot=/containers/cont1 --releasever=18 install -y httpd
openssh, bridge-utils, dhclient
cont1.xml
<domain type="lxc">
<name>cont1</name>
<vcpu placement="static">1</vcpu>
<cputune>
<shares>1024</shares>
<period>1000000</period>
</cputune>
<memtune>
<hard_limit unit="M">256</hard_limit>
<soft_limit unit="M">32</soft_limit>
<min_guarantee unit="M">64</min_guarantee>
</memtune>
<blkiotune>
<weight>800</weight>
</blkiotune>
<memory unit="KiB">102400</memory>
<os>
<type>exe</type>
<init>/bin/lxc_defaultinit.sh</init>
</os>
<clock offset="utc"/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/libexec/libvirt_lxc</emulator>
<filesystem accessmode="passthrough" type="mount">
<source dir="/containers/cont1/"/>
<target dir="/"/>
</filesystem>
<interface type="bridge">
<source bridge="br0"/>
</interface>
<console port="0" type="pty"/>
</devices>
</domain>
Network setting at host
/etc/sysconfig/network-script/ifcfg-p2p1
TYPE="Ethernet"
DEVICE="p2p1"
BOOTPROTO="dhcp"
ONBOOT="yes"
BRIDGE="br0"
NM_CONTROLLED="no"
/etc/sysconfig/network-script/ifcfg-br0
DEVICE="br0"
TYPE="Bridge"
USERCTL="no"
ONBOOT="yes"
BOOTPROTO="dhcp"
NM_CONTROLLED="no"
Network setting at Guest
/containers/cont1/etc/sysconfig/network-script/ifcfg-eth0
TYPE="Ethernet"
DEVICE="eth0"
BOOTPROTO="static"
ONBOOT="yes"
GATEWAY=172.26.126.254
IPADDR=172.26.126.204
at host
/etc/fstab
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts defaults 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
none /sys/fs/cgroup cgroup defaults 0 0
at guest
/containers/bin/lxc-defaultinit.sh
#!/bin/bash
export
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/lib
export PS1="[\u@\h \W]\$ "
export HOME="/root"
mount -t devtmpfs none /dev
mount -t devpts none /dev/pts
mount -t tmpfs none /dev/shm
mount -t sysfs none /sys
/etc/init.d/network start
exec /bin/bash
On Wed, Jul 31, 2013 at 3:03 PM, Daniel P. Berrange
<berrange@redhat.com>wrote:
> On Wed, Jul 31, 2013 at 12:46:58PM +0530, Aarti Sawant wrote:
> > hello,
> >
> > i am new to lxc, i have created a lxc container on fedora 19
> > i created a container rootfs of fedora 19 by using
> > yum --installroot=/containers/test1 --releasever=19 install openssh
> >
> > test1.xml file for container test1
> > <domain type="lxc">
> > <name>test1</name>
> > <vcpu placement="static">1</vcpu>
> > <cputune>
> > <shares>1024</shares>
> > <period>1000000</period>
> > </cputune>
> > <memtune>
> > <hard_limit unit="M">1024</hard_limit>
> > <soft_limit unit="M">128</soft_limit>
> > <min_guarantee unit="M">64</min_guarantee>
> > </memtune>
> > <blkiotune>
> > <weight>800</weight>
> > </blkiotune>
> > <memory unit="KiB">102400</memory>
> > <os>
> > <type>exe</type>
> > <init>/bin/bash</init>
> > </os>
> > <clock offset="utc"/>
> > <on_poweroff>destroy</on_poweroff>
> > <on_reboot>restart</on_reboot>
> > <on_crash>destroy</on_crash>
> > <devices>
> > <emulator>/usr/libexec/libvirt_lxc</emulator>
> > <filesystem accessmode="passthrough"
type="mount">
> > <source dir="/containers/test1/"/>
> > <target dir="/"/>
> > </filesystem>
>
> > <filesystem accessmode="passthrough"
type="mount">
> > <source dir="/containers/test1/var"/>
> > <target dir="/var"/>
> > </filesystem>
> ....snip more <filesystem> elements...
>
> Why are you adding all these sub-mounts for /var, /dev, etc, etc?
>
> You installed the entire OS tree into /containers/test1, so it
> should be sufficient to just have that first <filesystem>
> entry for '/'. You'd only want to add extra mounts for
> /var, etc if the directory on the host came from somewhere
> outside the /containers/test1 location.
>
> NB, also libvirt sets up /dev - you shouldn't try to
> override it, or you'll loose access to the pre-populate
> device nodes, which is probably what's causing your
> failure.
>
> > <interface type="bridge">
> > <source bridge="br0"/>
> > </interface>
> > <console port="0" type="pty"/>
> > </devices>
> > </domain>
>
> Daniel
> --
> |: http://berrange.com -o-
http://www.flickr.com/photos/dberrange/:|
> |: http://libvirt.org -o-
http://virt-manager.org:|
> |: http://autobuild.org -o-
http://search.cpan.org/~danberr/:|
> |: http://entangle-photo.org -o-
http://live.gnome.org/gtk-vnc:|
>
Apparently Analagous Threads
- start lxc container on fedora 19
- Re: cgroups inside LXC containers losts memory limits after some time
- Re: Centos 7.1.1503 + libvirt 1.2.14 = broken direct network mode
- Centos 7.1.1503 + libvirt 1.2.14 = broken direct network mode
- 1.2.7 and 1.2.8 fail to start container: libvirt_lxc[4904]: segfault at 0 ip ...error 4 in libc-2.17.so[