[libvirt-users] Sharing network namespace between containers
Hello Based on the lxc driver documentation, I am trying to create an xml to share an existing network namespace with another container. I am running libvirt 1.2.15. Here is the xml: <domain type='lxc' xmlns:lxc='http://libvirt.org/schemas/domain/lxc/1.0'> <name>nt</name> <uuid>43c00192-e114-4e29-8ce7-4b5487f60a75</uuid> <memory unit='KiB'>65536</memory> <currentMemory unit='KiB'>65536</currentMemory> <vcpu placement='static'>1</vcpu> <cputune> <shares>2000</shares> </cputune> <resource> <partition>/apphosting.partition</partition> </resource> <os> <type arch='x86_64'>exe</type> <init>/sbin/init</init> </os> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/lib/libvirt/libvirt_lxc</emulator> <filesystem type='mount' accessmode='passthrough'> <source dir='/work/repo-lxc/nt/rootfs_mnt'/> <target dir='/'/> </filesystem> <filesystem type='mount' accessmode='squash'> <driver type='path' wrpolicy='immediate'/> <source dir='/local/local1/core_dir/nt'/> <target dir='/local/local1/core_dir'/> </filesystem> <!-- <interface type='network'> <mac address='52:54:dd:6d:44:d2'/> <source network='dpbr_0'/> <guest dev='eth0'/> </interface> --> <console type='pty'> <target type='lxc' port='0'/> </console> </devices> * <lxc:namespace>* * <lxc:sharenet type='netns' value='node'/>* * </lxc:namespace>* </domain> However, the virsh edit is unable to save this file: error: XML document failed to validate against schema: Unable to validate doc against /usr/share/libvirt/schemas/domain.rng Element domain has extra content: namespace Failed. Try again? [y,n,i,f,?]: Is this supported in libvirt 1.2.15 - the document doesnt specify a minimum version of libvirt. Appreciate your help. Regards, Harish
On Tue, Nov 08, 2016 at 09:01:34AM +0530, Harish Vishwanath wrote:
Hello
Based on the lxc driver documentation, I am trying to create an xml to share an existing network namespace with another container. I am running libvirt 1.2.15.
Here is the xml:
<domain type='lxc' xmlns:lxc='http://libvirt.org/schemas/domain/lxc/1.0'>
<name>nt</name> <uuid>43c00192-e114-4e29-8ce7-4b5487f60a75</uuid> <memory unit='KiB'>65536</memory> <currentMemory unit='KiB'>65536</currentMemory> <vcpu placement='static'>1</vcpu> <cputune> <shares>2000</shares> </cputune> <resource> <partition>/apphosting.partition</partition> </resource> <os> <type arch='x86_64'>exe</type> <init>/sbin/init</init> </os> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/lib/libvirt/libvirt_lxc</emulator> <filesystem type='mount' accessmode='passthrough'> <source dir='/work/repo-lxc/nt/rootfs_mnt'/> <target dir='/'/> </filesystem> <filesystem type='mount' accessmode='squash'> <driver type='path' wrpolicy='immediate'/> <source dir='/local/local1/core_dir/nt'/> <target dir='/local/local1/core_dir'/> </filesystem>
<!-- <interface type='network'> <mac address='52:54:dd:6d:44:d2'/> <source network='dpbr_0'/> <guest dev='eth0'/> </interface> -->
<console type='pty'> <target type='lxc' port='0'/> </console> </devices>
* <lxc:namespace>* * <lxc:sharenet type='netns' value='node'/>* * </lxc:namespace>* </domain>
However, the virsh edit is unable to save this file:
error: XML document failed to validate against schema: Unable to validate doc against /usr/share/libvirt/schemas/domain.rng Element domain has extra content: namespace
Failed. Try again? [y,n,i,f,?]:
the easiest check in these situations is: 1) try whether it works when you press 'i': a) it doesn't, but you get a better error message b) it does continue with (2) 2) if (b), then check if virsh dumpxml has all the info you had there (i.e. libvirt doesn't lose track of something) a) no data is missing -- we have an error in our Relax-NG schema b) some part of the XML is missing -- your libvirt version doesn't support it
Is this supported in libvirt 1.2.15 - the document doesnt specify a minimum version of libvirt.
Appreciate your help.
Regards, Harish
_______________________________________________ libvirt-users mailing list libvirt-users@redhat.com https://www.redhat.com/mailman/listinfo/libvirt-users
Thank you. It looks like after I 'ignore', nothing is persisted in xml for the app. Any idea what is the minimum version of libvirt required for this feature? Regards, Harish On Tue, Nov 8, 2016 at 1:36 PM, Martin Kletzander <mkletzan@redhat.com> wrote:
On Tue, Nov 08, 2016 at 09:01:34AM +0530, Harish Vishwanath wrote:
Hello
Based on the lxc driver documentation, I am trying to create an xml to share an existing network namespace with another container. I am running libvirt 1.2.15.
Here is the xml:
<domain type='lxc' xmlns:lxc='http://libvirt.org/schemas/domain/lxc/1.0'>
<name>nt</name> <uuid>43c00192-e114-4e29-8ce7-4b5487f60a75</uuid> <memory unit='KiB'>65536</memory> <currentMemory unit='KiB'>65536</currentMemory> <vcpu placement='static'>1</vcpu> <cputune> <shares>2000</shares> </cputune> <resource> <partition>/apphosting.partition</partition> </resource> <os> <type arch='x86_64'>exe</type> <init>/sbin/init</init> </os> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/lib/libvirt/libvirt_lxc</emulator> <filesystem type='mount' accessmode='passthrough'> <source dir='/work/repo-lxc/nt/rootfs_mnt'/> <target dir='/'/> </filesystem> <filesystem type='mount' accessmode='squash'> <driver type='path' wrpolicy='immediate'/> <source dir='/local/local1/core_dir/nt'/> <target dir='/local/local1/core_dir'/> </filesystem>
<!-- <interface type='network'> <mac address='52:54:dd:6d:44:d2'/> <source network='dpbr_0'/> <guest dev='eth0'/> </interface> -->
<console type='pty'> <target type='lxc' port='0'/> </console> </devices>
* <lxc:namespace>* * <lxc:sharenet type='netns' value='node'/>* * </lxc:namespace>* </domain>
However, the virsh edit is unable to save this file:
error: XML document failed to validate against schema: Unable to validate doc against /usr/share/libvirt/schemas/domain.rng Element domain has extra content: namespace
Failed. Try again? [y,n,i,f,?]:
the easiest check in these situations is:
1) try whether it works when you press 'i': a) it doesn't, but you get a better error message b) it does continue with (2) 2) if (b), then check if virsh dumpxml has all the info you had there (i.e. libvirt doesn't lose track of something) a) no data is missing -- we have an error in our Relax-NG schema b) some part of the XML is missing -- your libvirt version doesn't support it
Is this supported in libvirt 1.2.15 - the document doesnt specify a minimum
version of libvirt.
Appreciate your help.
Regards, Harish
_______________________________________________
libvirt-users mailing list libvirt-users@redhat.com https://www.redhat.com/mailman/listinfo/libvirt-users
On Tue, Nov 08, 2016 at 02:48:53PM +0530, Harish Vishwanath wrote:
Thank you. It looks like after I 'ignore', nothing is persisted in xml for the app. Any idea what is the minimum version of libvirt required for this feature?
Looks like commit c27553b6e27f46537670a8f9c7dbf286cdd2f551 added that feature and it describes as v1.2.18-182-gc27553b6e27f, which means it's supported from 1.2.19 onwards. Martin
On Tue, Nov 08, 2016 at 09:01:34AM +0530, Harish Vishwanath wrote:
Hello
Based on the lxc driver documentation, I am trying to create an xml to share an existing network namespace with another container. I am running libvirt 1.2.15.
Here is the xml:
<domain type='lxc' xmlns:lxc='http://libvirt.org/schemas/domain/lxc/1.0'>
<name>nt</name> <uuid>43c00192-e114-4e29-8ce7-4b5487f60a75</uuid> <memory unit='KiB'>65536</memory> <currentMemory unit='KiB'>65536</currentMemory> <vcpu placement='static'>1</vcpu> <cputune> <shares>2000</shares> </cputune> <resource> <partition>/apphosting.partition</partition> </resource> <os> <type arch='x86_64'>exe</type> <init>/sbin/init</init> </os> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/lib/libvirt/libvirt_lxc</emulator> <filesystem type='mount' accessmode='passthrough'> <source dir='/work/repo-lxc/nt/rootfs_mnt'/> <target dir='/'/> </filesystem> <filesystem type='mount' accessmode='squash'> <driver type='path' wrpolicy='immediate'/> <source dir='/local/local1/core_dir/nt'/> <target dir='/local/local1/core_dir'/> </filesystem>
<!-- <interface type='network'> <mac address='52:54:dd:6d:44:d2'/> <source network='dpbr_0'/> <guest dev='eth0'/> </interface> -->
<console type='pty'> <target type='lxc' port='0'/> </console> </devices>
* <lxc:namespace>* * <lxc:sharenet type='netns' value='node'/>* * </lxc:namespace>* </domain>
However, the virsh edit is unable to save this file:
error: XML document failed to validate against schema: Unable to validate doc against /usr/share/libvirt/schemas/domain.rng Element domain has extra content: namespace
Failed. Try again? [y,n,i,f,?]:
Is this supported in libvirt 1.2.15 - the document doesnt specify a minimum version of libvirt.
It requires libvirt 1.2.19 I'm afraid. I'll fix the docs. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://entangle-photo.org -o- http://search.cpan.org/~danberr/ :|
participants (3)
-
Daniel P. Berrange -
Harish Vishwanath -
Martin Kletzander