10:09 a.m.
Hi,
I'm trying to manage LXC instances through OpenStack, which use libvirt as
a virtualization driver layer. After launching LXC instance, I simply could
not attach to the console.
virsh # list
Id Name State
----------------------------------
14366 instance-00000078 running
virsh # console 14366
Connected to domain instance-00000078
Escape character is ^]
And it keeps stuck here.
Initially I thought it could be a cgroup device config issue, and tried to
"echo ‘c 5:1 rwm'
/cgroup/devices/libvirt/lxc/instance-00000078/devices.allow“, to add
/dev/console access right to the container. But it does not work, console
stilll not working.
Before the cgroup tweaking, devices.list are as follows
[root@localhost libvirt]# cat
/cgroup/devices/libvirt/lxc/instance-0000007a/devices.list
c 1:3 rwm
c 1:5 rwm
c 1:7 rwm
c 1:8 rwm
c 1:9 rwm
c 5:0 rwm
c 5:2 rwm
c 136:* rwm
I'm not quite sure what kind of issue could possibly cause this console
access issue. Cause I'm now using two different guest OS templates on two
different host OSes. Following are some symptoms I observed.
* (g) for container guest OS
* (h) for host OS
* NOTE: Ubuntu guest os are generated by lxc-create -t ubuntu, which is an
Ubuntu 12.04 based lxc template.
CentOS guest os are handcrafted by myself, taking reference of
http://wiki.1tux.org/wiki/Lxc/Installation/Guest/Centos/6
1. Ubuntu (g) launched by lxc-start on Ubuntu 12.04 host, console works
2. Ubuntu (g) launched by OpenStack / libvirt on Ubuntu 12.04 host,
console works
3. Ubuntu (g) launched by OpenStack / libvirt on CentOS 6.3 host,
console NOT works
4. CentOS (g) launched by lxc-start on Ubuntu 12.04 host, console works
5. CentOS (g) launched by OpenStack / libvirt on Ubuntu12.04 host,
console NOT works
6. CentOS (g) launched by OpenStack / libvirt on CentOS 6.3 host,
console NOT works
So somehow I feel it could be something related to LXC template rootfs, but
Host OS do make a difference (2 vs. 3). lxc-start / libvirt also makes a
difference (4 vs. 5), but that might be caused by cgroup setting.
Could someone shed me some clues to further digging this issue? Thanks!
--
Qiu Yu
10:30 a.m.
On Fri, Nov 9, 2012 at 12:09 AM, unicell <unicell(a)gmail.com> wrote:
Hi,
I'm trying to manage LXC instances through OpenStack, which use libvirt as
a virtualization driver layer. After launching LXC instance, I simply could
not attach to the console.
virsh # list
Id Name State
----------------------------------
14366 instance-00000078 running
virsh # console 14366
Connected to domain instance-00000078
Escape character is ^]
And it keeps stuck here.
Initially I thought it could be a cgroup device config issue, and tried to
"echo ‘c 5:1 rwm'
>/cgroup/devices/libvirt/lxc/instance-00000078/devices.allow“, to add
/dev/console access right to the container. But it does not work, console
stilll not working.
Before the cgroup tweaking, devices.list are as follows
[root@localhost libvirt]# cat
/cgroup/devices/libvirt/lxc/instance-0000007a/devices.list
c 1:3 rwm
c 1:5 rwm
c 1:7 rwm
c 1:8 rwm
c 1:9 rwm
c 5:0 rwm
c 5:2 rwm
c 136:* rwm
I'm not quite sure what kind of issue could possibly cause this console
access issue. Cause I'm now using two different guest OS templates on two
different host OSes. Following are some symptoms I observed.
* (g) for container guest OS
* (h) for host OS
* NOTE: Ubuntu guest os are generated by lxc-create -t ubuntu, which is an
Ubuntu 12.04 based lxc template.
CentOS guest os are handcrafted by myself, taking reference
of http://wiki.1tux.org/wiki/Lxc/Installation/Guest/Centos/6
1. Ubuntu (g) launched by lxc-start on Ubuntu 12.04 host, console works
2. Ubuntu (g) launched by OpenStack / libvirt on Ubuntu 12.04 host,
console works
3. Ubuntu (g) launched by OpenStack / libvirt on CentOS 6.3 host,
console NOT works
4. CentOS (g) launched by lxc-start on Ubuntu 12.04 host, console works
5. CentOS (g) launched by OpenStack / libvirt on Ubuntu12.04 host,
console NOT works
6. CentOS (g) launched by OpenStack / libvirt on CentOS 6.3 host,
console NOT works
So somehow I feel it could be something related to LXC template rootfs,
but Host OS do make a difference (2 vs. 3). lxc-start / libvirt also makes
a difference (4 vs. 5), but that might be caused by cgroup setting.
Could someone shed me some clues to further digging this issue? Thanks!
--
Qiu Yu
For the "Ubuntu (g) launched by OpenStack / libvirt on CentOS 6.3 host", I
also tried following command and console still not working.
echo "a *.* rwm"
/cgroup/devices/libvirt/lxc/instance-00000078/devices.allow
More information attached.
[root@localhost ~]# ls -l
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty*
crw-rw-rw- 1 root tty 5, 0 Oct 23 20:01
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty
crw------- 1 root tty 4, 0 Oct 23 20:01
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty0
crw------- 1 root tty 4, 1 Oct 23 20:01
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty1
crw------- 1 root tty 4, 2 Oct 23 20:01
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty2
crw------- 1 root tty 4, 3 Oct 23 20:01
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty3
crw------- 1 root tty 4, 4 Oct 23 20:01
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty4
crw------- 1 root tty 4, 5 Oct 23 20:01
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty5
crw------- 1 root tty 4, 6 Oct 23 20:01
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty6
crw------- 1 root tty 4, 7 Oct 23 20:01
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty7
crw------- 1 root tty 4, 8 Oct 23 20:01
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty8
crw------- 1 root tty 4, 9 Oct 23 20:01
/home/stack/nova_state/instances/instance-00000078/rootfs/dev/tty9
[root@localhost ~]# cat
/cgroup/devices/libvirt/lxc/instance-00000078/devices.list
c 1:3 rwm
c 1:5 rwm
c 1:7 rwm
c 1:8 rwm
c 1:9 rwm
c 5:0 rwm
c 5:2 rwm
c 136:* rwm
c 5:1 rwm
c 5:* rwm
a *:* rwm
[root@localhost ~]# cat /etc/libvirt/lxc/instance-00000078.xml
<!--
WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
OVERWRITTEN AND LOST. Changes to this xml configuration should be made
using:
virsh edit instance-00000078
or other application using the libvirt API.
-->
<domain type='lxc'>
<name>instance-00000078</name>
<uuid>55f225d1-e49c-4a51-9c17-0a5dde6d1917</uuid>
<memory>524288</memory>
<currentMemory>524288</currentMemory>
<vcpu>2</vcpu>
<os>
<type arch='x86_64'>exe</type>
<init>/sbin/init</init>
<cmdline>console=ttyS0</cmdline>
</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 type='mount' accessmode='passthrough'>
<source
dir='/home/stack/nova_state/instances/instance-00000078/rootfs'/>
<target dir='/'/>
</filesystem>
<interface type='bridge'>
<mac address='fa:16:3e:08:4f:b9'/>
<source bridge='br100'/>
<filterref filter='nova-instance-instance-00000078-fa163e084fb9'>
<parameter name='DHCPSERVER' value='10.48.253.1'/>
<parameter name='IP' value='10.48.253.2'/>
<parameter name='PROJMASK' value='255.255.255.0'/>
<parameter name='PROJNET' value='10.48.253.0'/>
</filterref>
</interface>
<console type='pty'>
<target type='lxc' port='0'/>
</console>
</devices>
</domain>
--
Qiu Yu
8:52 a.m.
New subject: [libvirt-users] [Lxc-users] Failed to access console after launching LXC through libvirt
Quoting unicell (unicell(a)gmail.com):
On Fri, Nov 9, 2012 at 12:09 AM, unicell <unicell(a)gmail.com>
wrote:
> Hi,
>
> I'm trying to manage LXC instances through OpenStack, which use libvirt as
> a virtualization driver layer. After launching LXC instance, I simply could
> not attach to the console.
>
> virsh # list
> Id Name State
> ----------------------------------
> 14366 instance-00000078 running
>
> virsh # console 14366
> Connected to domain instance-00000078
> Escape character is ^]
>
>
> And it keeps stuck here.
>
> Initially I thought it could be a cgroup device config issue, and tried to
> "echo ‘c 5:1 rwm'
> >/cgroup/devices/libvirt/lxc/instance-00000078/devices.allow“, to add
> /dev/console access right to the container. But it does not work, console
> stilll not working.
>
> Before the cgroup tweaking, devices.list are as follows
>
> [root@localhost libvirt]# cat
> /cgroup/devices/libvirt/lxc/instance-0000007a/devices.list
>
> c 1:3 rwm
> c 1:5 rwm
> c 1:7 rwm
> c 1:8 rwm
> c 1:9 rwm
> c 5:0 rwm
> c 5:2 rwm
> c 136:* rwm
>
>
> I'm not quite sure what kind of issue could possibly cause this console
> access issue. Cause I'm now using two different guest OS templates on two
Just a few things to help you look around:
Both lxc and libvirt-lxc provide consoles by creating a pty on the host
and bind-mounting that onto /dev/ttyN in the guest before starting init.
Ubuntu on the host passes 'container=lxc' (or 'container=libvirt') to
the container, which tells ubuntu in the container to not do some things
(look for 'container' in /etc/init/*; also things like mountall accept
that they should not do some things in containers).
You can investigate /dev/ttyN and /dev/console in your container by
looking at the pid of init in the container, and looking at
/proc/$pid/root/dev/{console,tty*}
That *should* show 136:* devices, but I assume that in the cases where
it is not working it will show 4:* for ttyN. If you look at
cat /proc/$pid/root/proc/1/mounts
I expect you'll see a /dev is mounted in the container. Which hides the
bind mounts which (libvirt-)lxc has set up.
-serge
10:14 a.m.
New subject: [libvirt-users] [Lxc-users] Failed to access console after launching LXC through libvirt
On Fri, Nov 9, 2012 at 10:52 PM, Serge Hallyn <serge.hallyn(a)canonical.com>wrote:
Quoting unicell (unicell(a)gmail.com):
> On Fri, Nov 9, 2012 at 12:09 AM, unicell <unicell(a)gmail.com> wrote:
>
> > Hi,
> >
> > I'm trying to manage LXC instances through OpenStack, which use
libvirt as
> > a virtualization driver layer. After launching LXC instance, I simply
could
> > not attach to the console.
> >
> > virsh # list
> > Id Name State
> > ----------------------------------
> > 14366 instance-00000078 running
> >
> > virsh # console 14366
> > Connected to domain instance-00000078
> > Escape character is ^]
> >
> >
> > And it keeps stuck here.
> >
> > Initially I thought it could be a cgroup device config issue, and
tried to
> > "echo ‘c 5:1 rwm'
> > >/cgroup/devices/libvirt/lxc/instance-00000078/devices.allow“, to add
> > /dev/console access right to the container. But it does not work,
console
> > stilll not working.
> >
> > Before the cgroup tweaking, devices.list are as follows
> >
> > [root@localhost libvirt]# cat
> > /cgroup/devices/libvirt/lxc/instance-0000007a/devices.list
> >
> > c 1:3 rwm
> > c 1:5 rwm
> > c 1:7 rwm
> > c 1:8 rwm
> > c 1:9 rwm
> > c 5:0 rwm
> > c 5:2 rwm
> > c 136:* rwm
> >
> >
> > I'm not quite sure what kind of issue could possibly cause this console
> > access issue. Cause I'm now using two different guest OS templates on
two
Just a few things to help you look around:
Both lxc and libvirt-lxc provide consoles by creating a pty on the host
and bind-mounting that onto /dev/ttyN in the guest before starting init.
Ubuntu on the host passes 'container=lxc' (or 'container=libvirt') to
the container, which tells ubuntu in the container to not do some things
(look for 'container' in /etc/init/*; also things like mountall accept
that they should not do some things in containers).
You can investigate /dev/ttyN and /dev/console in your container by
looking at the pid of init in the container, and looking at
/proc/$pid/root/dev/{console,tty*}
That *should* show 136:* devices, but I assume that in the cases where
it is not working it will show 4:* for ttyN. If you look at
cat /proc/$pid/root/proc/1/mounts
I expect you'll see a /dev is mounted in the container. Which hides the
bind mounts which (libvirt-)lxc has set up.
-serge
Serge, you're right. In console not working environment, /dev is mounted
inside container. As you pointed out, it hides what (libvirt-)lxc has set
up and messed up with the conosle devices.
Thank you so much for providing this clue, and I'll dig into upstart
scripts to look at more. I doubt there're some difference in container set
up logic in 'container=lxc' and 'container=lxc-libvirt' situation, which
caused the /dev/ mounting issue.
More information for your reference. As you can see, launching by lxc and
launching by libvirt-lxc makes a big difference here.
--
console working case (started by lxc-start)
--
root@localhost:/var/lib/lxc/CN/rootfs/etc/init# cat
/proc/10018/root/proc/1/mounts
rootfs / rootfs rw 0 0
/dev/mapper/lxcvg-lxcimages / ext3
rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
sysfs /sys sysfs rw,relatime 0 0
devpts /dev/lxc/console devpts
rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
devpts /dev/lxc/tty1 devpts
rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
devpts /dev/lxc/tty2 devpts
rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
devpts /dev/lxc/tty3 devpts
rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
devpts /dev/lxc/tty4 devpts
rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
devpts /dev/pts devpts rw,relatime,mode=600,ptmxmode=666 0 0
devpts /dev/ptmx devpts rw,relatime,mode=600,ptmxmode=666 0 0
none /proc/sys/fs/binfmt_misc binfmt_misc rw,nosuid,nodev,noexec,relatime 0
0
none /sys/fs/fuse/connections fusectl rw,relatime 0 0
none /sys/kernel/debug debugfs rw,relatime 0 0
none /sys/kernel/security securityfs rw,relatime 0 0
none /run tmpfs rw,nosuid,noexec,relatime,size=378636k,mode=755 0 0
none /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0
none /run/shm tmpfs rw,nosuid,nodev,relatime 0 0
root@localhost:/var/lib/lxc/CN/rootfs/etc/init# ls -l
/proc/10018/root/dev/{console,tty*}
lrwxrwxrwx 1 root root 11 Nov 9 23:55 /proc/10018/root/dev/console ->
lxc/console
crw-rw-rw- 1 root tty 5, 0 Oct 23 20:40 /proc/10018/root/dev/tty
crw------- 1 root tty 4, 0 Oct 23 20:01 /proc/10018/root/dev/tty0
lrwxrwxrwx 1 root root 8 Nov 9 23:55 /proc/10018/root/dev/tty1 ->
lxc/tty1
lrwxrwxrwx 1 root root 8 Nov 9 23:55 /proc/10018/root/dev/tty2 ->
lxc/tty2
lrwxrwxrwx 1 root root 8 Nov 9 23:55 /proc/10018/root/dev/tty3 ->
lxc/tty3
lrwxrwxrwx 1 root root 8 Nov 9 23:55 /proc/10018/root/dev/tty4 ->
lxc/tty4
crw------- 1 root tty 4, 5 Oct 23 20:01 /proc/10018/root/dev/tty5
crw------- 1 root tty 4, 6 Oct 23 20:01 /proc/10018/root/dev/tty6
crw------- 1 root tty 4, 7 Oct 23 20:01 /proc/10018/root/dev/tty7
crw------- 1 root tty 4, 8 Oct 23 20:01 /proc/10018/root/dev/tty8
crw------- 1 root tty 4, 9 Oct 23 20:01 /proc/10018/root/dev/tty9
console *NOT* working case (started by libvirt)
--
[root@localhost instances]# cat /proc/2086/root/proc/1/mounts
rootfs / rootfs rw 0 0
devpts /dev/pts devpts rw,relatime,gid=5,mode=620,ptmxmode=666 0 0
/dev/nbd14 / ext3
rw,relatime,errors=continue,user_xattr,acl,barrier=1,data=ordered 0 0
devpts /dev/pts devpts rw,relatime,gid=5,mode=620,ptmxmode=666 0 0
devfs /dev tmpfs rw,nosuid,relatime,mode=755 0 0
<-- * /dev is mounted here *
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
proc /proc/sys proc ro,relatime 0 0
sysfs /sys sysfs ro,relatime 0 0
/dev/sda2 /selinux ext4 ro,relatime,barrier=1,data=ordered 0 0
devpts /dev/ptmx devpts rw,relatime,gid=5,mode=620,ptmxmode=666 0 0
[root@localhost instances]# ls -l /proc/2086/root/dev/{console,tty*}
lrwxrwxrwx 1 root root 10 Nov 9 23:53 /proc/2086/root/dev/console ->
/dev/pts/0
lrwxrwxrwx 1 root root 10 Nov 9 23:53 /proc/2086/root/dev/tty1 ->
/dev/pts/0
--
Qiu Yu
10:40 a.m.
New subject: [libvirt-users] [Lxc-users] Failed to access console after launching LXC through libvirt
Hey Qiu Yu,
I am a beginner to both lxc and openstack swift. Can you please clarify
some of my doubts related to openstack swift and lxc?
On 8 November 2012 21:39, unicell <unicell(a)gmail.com> wrote:
Hi,
I'm trying to manage LXC instances through OpenStack, which use libvirt as
a virtualization driver layer. After launching LXC instance, I simply could
not attach to the console.
virsh # list
Id Name State
----------------------------------
14366 instance-00000078 running
virsh # console 14366
Connected to domain instance-00000078
Escape character is ^]
And it keeps stuck here.
Initially I thought it could be a cgroup device config issue, and tried to
"echo ‘c 5:1 rwm'
>/cgroup/devices/libvirt/lxc/instance-00000078/devices.allow“, to add
/dev/console access right to the container. But it does not work, console
stilll not working.
Before the cgroup tweaking, devices.list are as follows
[root@localhost libvirt]# cat
/cgroup/devices/libvirt/lxc/instance-0000007a/devices.list
c 1:3 rwm
c 1:5 rwm
c 1:7 rwm
c 1:8 rwm
c 1:9 rwm
c 5:0 rwm
c 5:2 rwm
c 136:* rwm
I'm not quite sure what kind of issue could possibly cause this console
access issue. Cause I'm now using two different guest OS templates on two
different host OSes. Following are some symptoms I observed.
* (g) for container guest OS
* (h) for host OS
* NOTE: Ubuntu guest os are generated by lxc-create -t ubuntu, which is an
Ubuntu 12.04 based lxc template.
CentOS guest os are handcrafted by myself, taking reference
of http://wiki.1tux.org/wiki/Lxc/Installation/Guest/Centos/6
1. Ubuntu (g) launched by lxc-start on Ubuntu 12.04 host, console works
2. Ubuntu (g) launched by OpenStack / libvirt on Ubuntu 12.04 host,
console works
3. Ubuntu (g) launched by OpenStack / libvirt on CentOS 6.3 host,
console NOT works
4. CentOS (g) launched by lxc-start on Ubuntu 12.04 host, console works
5. CentOS (g) launched by OpenStack / libvirt on Ubuntu12.04 host,
console NOT works
6. CentOS (g) launched by OpenStack / libvirt on CentOS 6.3 host,
console NOT works
So somehow I feel it could be something related to LXC template rootfs,
but Host OS do make a difference (2 vs. 3). lxc-start / libvirt also makes
a difference (4 vs. 5), but that might be caused by cgroup setting.
Could someone shed me some clues to further digging this issue? Thanks!
--
Qiu Yu
------------------------------------------------------------------------------
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Make your web apps faster with AppDynamics
Download AppDynamics Lite for free today:
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_______________________________________________
Lxc-users mailing list
Lxc-users(a)lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/lxc-users
--
Best Regards,
Sujay M
Final year B.Tech
Computer Engineering
NITK Surathkal
contact: +918971897571
10:52 a.m.
New subject: [libvirt-users] [Lxc-users] Failed to access console after launching LXC through libvirt
Hey Qiu Yu,
I am a beginner to both lxc and openstack swift. Can you please clarify
some of my doubts related to openstack swift and lxc?
1. I want to set up a small cloud storage environment in my laptop. I mean
i need to host storage services for some clients and i want to virtualize
this environment. Is openstack swift enough for the above purpose or should
i install nova, glance and swift?
On 8 November 2012 22:10, Sujay M <sujay.m17(a)gmail.com> wrote:
Hey Qiu Yu,
I am a beginner to both lxc and openstack swift. Can you please clarify
some of my doubts related to openstack swift and lxc?
On 8 November 2012 21:39, unicell <unicell(a)gmail.com> wrote:
> Hi,
>
> I'm trying to manage LXC instances through OpenStack, which use libvirt
> as a virtualization driver layer. After launching LXC instance, I simply
> could not attach to the console.
>
> virsh # list
> Id Name State
> ----------------------------------
> 14366 instance-00000078 running
>
> virsh # console 14366
> Connected to domain instance-00000078
> Escape character is ^]
>
>
> And it keeps stuck here.
>
> Initially I thought it could be a cgroup device config issue, and tried
> to "echo ‘c 5:1 rwm'
> >/cgroup/devices/libvirt/lxc/instance-00000078/devices.allow“, to add
> /dev/console access right to the container. But it does not work, console
> stilll not working.
>
> Before the cgroup tweaking, devices.list are as follows
>
> [root@localhost libvirt]# cat
> /cgroup/devices/libvirt/lxc/instance-0000007a/devices.list
>
> c 1:3 rwm
> c 1:5 rwm
> c 1:7 rwm
> c 1:8 rwm
> c 1:9 rwm
> c 5:0 rwm
> c 5:2 rwm
> c 136:* rwm
>
>
> I'm not quite sure what kind of issue could possibly cause this console
> access issue. Cause I'm now using two different guest OS templates on two
> different host OSes. Following are some symptoms I observed.
>
>
> * (g) for container guest OS
> * (h) for host OS
> * NOTE: Ubuntu guest os are generated by lxc-create -t ubuntu, which is
> an Ubuntu 12.04 based lxc template.
> CentOS guest os are handcrafted by myself, taking reference
> of http://wiki.1tux.org/wiki/Lxc/Installation/Guest/Centos/6
>
> 1. Ubuntu (g) launched by lxc-start on Ubuntu 12.04 host, console
> works
> 2. Ubuntu (g) launched by OpenStack / libvirt on Ubuntu 12.04 host,
> console works
> 3. Ubuntu (g) launched by OpenStack / libvirt on CentOS 6.3 host,
> console NOT works
> 4. CentOS (g) launched by lxc-start on Ubuntu 12.04 host, console
> works
> 5. CentOS (g) launched by OpenStack / libvirt on Ubuntu12.04 host,
> console NOT works
> 6. CentOS (g) launched by OpenStack / libvirt on CentOS 6.3 host,
> console NOT works
>
> So somehow I feel it could be something related to LXC template rootfs,
> but Host OS do make a difference (2 vs. 3). lxc-start / libvirt also makes
> a difference (4 vs. 5), but that might be caused by cgroup setting.
>
> Could someone shed me some clues to further digging this issue? Thanks!
>
> --
> Qiu Yu
>
>
> ------------------------------------------------------------------------------
> Everyone hates slow websites. So do we.
> Make your web apps faster with AppDynamics
> Download AppDynamics Lite for free today:
> http://p.sf.net/sfu/appdyn_d2d_nov
> _______________________________________________
> Lxc-users mailing list
> Lxc-users(a)lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/lxc-users
>
>
--
Best Regards,
Sujay M
Final year B.Tech
Computer Engineering
NITK Surathkal
contact: +918971897571
--
Best Regards,
Sujay M
Final year B.Tech
Computer Engineering
NITK Surathkal
contact: +918971897571
7:03 p.m.
New subject: [libvirt-users] [Lxc-users] Failed to access console after launching LXC through libvirt
On Fri, Nov 9, 2012 at 12:52 AM, Sujay M <sujay.m17(a)gmail.com> wrote:
Hey Qiu Yu,
I am a beginner to both lxc and openstack swift. Can you please clarify
some of my doubts related to openstack swift and lxc?
1. I want to set up a small cloud storage environment in my laptop. I mean
i need to host storage services for some clients and i want to virtualize
this environment. Is openstack swift enough for the above purpose or should
i install nova, glance and swift?
Well, this might be kind of off topic to this list. Let me make it short. :)
Swift is for object storage, similar to Amazon S3. While Nova-vol service
(component inside Nova) is for block storage, similar to Amazon EBS. And in
latest OpenStack Folsom release, nova volume has bee forked to openstack
cinder project, to address the block storage functionality. While glance is
for VM image service.
So, it really depends on your needs, swift or cinder. Usually, cinder works
together with nova. Swift is much more independent.
--
Qiu Yu
1:30 a.m.
New subject: [libvirt-users] [Lxc-users] Failed to access console after launching LXC through libvirt
Thanks Qiu Yu,
I want object storage so I'll be using swift. Can i use lxc for
virtualization in swift? How to do this?
On 9 November 2012 06:33, unicell <unicell(a)gmail.com> wrote:
On Fri, Nov 9, 2012 at 12:52 AM, Sujay M <sujay.m17(a)gmail.com>
wrote:
> Hey Qiu Yu,
>
> I am a beginner to both lxc and openstack swift. Can you please clarify
> some of my doubts related to openstack swift and lxc?
>
>
> 1. I want to set up a small cloud storage environment in my laptop. I
> mean i need to host storage services for some clients and i want to
> virtualize this environment. Is openstack swift enough for the above
> purpose or should i install nova, glance and swift?
>
>
Well, this might be kind of off topic to this list. Let me make it short.
:)
Swift is for object storage, similar to Amazon S3. While Nova-vol service
(component inside Nova) is for block storage, similar to Amazon EBS. And in
latest OpenStack Folsom release, nova volume has bee forked to openstack
cinder project, to address the block storage functionality. While glance is
for VM image service.
So, it really depends on your needs, swift or cinder. Usually, cinder
works together with nova. Swift is much more independent.
--
Qiu Yu
--
Best Regards,
Sujay M
Final year B.Tech
Computer Engineering
NITK Surathkal
contact: +918971897571
10:17 a.m.
New subject: [libvirt-users] [Lxc-users] Failed to access console after launching LXC through libvirt
On Fri, Nov 9, 2012 at 3:30 PM, Sujay M <sujay.m17(a)gmail.com> wrote:
Thanks Qiu Yu,
I want object storage so I'll be using swift. Can i use lxc for
virtualization in swift? How to do this?
LXC can works together with openstack nova.
You can find a simple instruction here: http://wiki.openstack.org/LXC
--
Qiu Yu
4277
days inactive
4278
days old
8 comments
3 participants
participants (3)
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Serge Hallyn -
Sujay M -
unicell