4:53 p.m.
Hi,
I have a problem with Ubuntu 20.04 VM reporting the correct FQDN to the engine.
Starting with this release, the ovirt-guest-agent is not available anymore.
Therefore, I have installed qemu-geust-agent with package defaults.
Now in the Engine, I only see the hostname under FQDN tab, instead the real full name with
domain.
I'm running an oVirt environment on 4.3.8.
The VM is resolveable, forward and reverse DNS entries are working.
hostname -f shows the correct FQDN.
Even adding IP and FQDN to /etc/hosts file doesn't change anything.
qemu-guest-agent version: 4.2-3ubuntu6.3
I manage this VM via ansible 2.9 and ansible is able to get the FQDN of the VM without any
issues...
What can I do here to debug my issue?
Does the engine cache the wrong result? Even after stopping and starting the VM again,
engine is only showing the hostname instead of the FQDN.
Best regards,
Florian
7:17 p.m.
Can you share your /etc/hosts.
As far as I remember there was an entry like:
127.0.1.2 hostname
So you have to comment it out.
Best Regards,
Strahil Nikolov
На 16 юли 2020 г. 16:53:36 GMT+03:00, Florian Schmid via Users <users(a)ovirt.org>
написа:
>Hi,
>
>I have a problem with Ubuntu 20.04 VM reporting the correct FQDN to the
>engine.
>Starting with this release, the ovirt-guest-agent is not available
>anymore.
>
>Therefore, I have installed qemu-geust-agent with package defaults.
>
>Now in the Engine, I only see the hostname under FQDN tab, instead the
>real full name with domain.
>
>I'm running an oVirt environment on 4.3.8.
>
>The VM is resolveable, forward and reverse DNS entries are working.
>hostname -f shows the correct FQDN.
>
>Even adding IP and FQDN to /etc/hosts file doesn't change anything.
>
>qemu-guest-agent version: 4.2-3ubuntu6.3
>
>I manage this VM via ansible 2.9 and ansible is able to get the FQDN of
>the VM without any issues...
>
>What can I do here to debug my issue?
>Does the engine cache the wrong result? Even after stopping and
>starting the VM again, engine is only showing the hostname instead of
>the FQDN.
>
>Best regards,
>Florian
>_______________________________________________
>Users mailing list -- users(a)ovirt.org
>To unsubscribe send an email to users-leave(a)ovirt.org
>Privacy Statement: https://www.ovirt.org/privacy-policy.html
>oVirt Code of Conduct:
>https://www.ovirt.org/community/about/community-guidelines/
>List Archives:
>https://lists.ovirt.org/archives/list/users@ovirt.org/message/BGGFBU24SQAJICU5OR7VOZLBQUZ3CWNJ/
9:58 p.m.
Hi Strahil,
no, the hosts file should be OK:
127.0.0.1 localhost
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
When adding an additional line, like this:
192.168.1.1 FQDN hostname
it is also not working.
This is the same hosts file like on our older Ubuntu 18.04 systems, but with
ovirt-guest-agent installed.
BR Florian
----- Ursprüngliche Mail -----
Von: "Strahil Nikolov" <hunter86_bg(a)yahoo.com>
An: "Florian Schmid" <fschmid(a)ubimet.com>, "users"
<users(a)ovirt.org>
Gesendet: Donnerstag, 16. Juli 2020 18:17:22
Betreff: Re: [ovirt-users] qemu-guest-agent on Ubuntu doesn't report FQDN
Can you share your /etc/hosts.
As far as I remember there was an entry like:
127.0.1.2 hostname
So you have to comment it out.
Best Regards,
Strahil Nikolov
На 16 юли 2020 г. 16:53:36 GMT+03:00, Florian Schmid via Users <users(a)ovirt.org>
написа:
>Hi,
>
>I have a problem with Ubuntu 20.04 VM reporting the correct FQDN to the
>engine.
>Starting with this release, the ovirt-guest-agent is not available
>anymore.
>
>Therefore, I have installed qemu-geust-agent with package defaults.
>
>Now in the Engine, I only see the hostname under FQDN tab, instead the
>real full name with domain.
>
>I'm running an oVirt environment on 4.3.8.
>
>The VM is resolveable, forward and reverse DNS entries are working.
>hostname -f shows the correct FQDN.
>
>Even adding IP and FQDN to /etc/hosts file doesn't change anything.
>
>qemu-guest-agent version: 4.2-3ubuntu6.3
>
>I manage this VM via ansible 2.9 and ansible is able to get the FQDN of
>the VM without any issues...
>
>What can I do here to debug my issue?
>Does the engine cache the wrong result? Even after stopping and
>starting the VM again, engine is only showing the hostname instead of
>the FQDN.
>
>Best regards,
>Florian
>_______________________________________________
>Users mailing list -- users(a)ovirt.org
>To unsubscribe send an email to users-leave(a)ovirt.org
>Privacy Statement: https://www.ovirt.org/privacy-policy.html
>oVirt Code of Conduct:
>https://www.ovirt.org/community/about/community-guidelines/
>List Archives:
>https://lists.ovirt.org/archives/list/users@ovirt.org/message/BGGFBU24SQAJICU5OR7VOZLBQUZ3CWNJ/
10:21 a.m.
Il giorno gio 16 lug 2020 alle ore 15:55 Florian Schmid via Users <
users(a)ovirt.org> ha scritto:
Hi,
I have a problem with Ubuntu 20.04 VM reporting the correct FQDN to the
engine.
Starting with this release, the ovirt-guest-agent is not available anymore.
Therefore, I have installed qemu-geust-agent with package defaults.
Now in the Engine, I only see the hostname under FQDN tab, instead the
real full name with domain.
I'm running an oVirt environment on 4.3.8.
The VM is resolveable, forward and reverse DNS entries are working.
hostname -f shows the correct FQDN.
Even adding IP and FQDN to /etc/hosts file doesn't change anything.
qemu-guest-agent version: 4.2-3ubuntu6.3
I manage this VM via ansible 2.9 and ansible is able to get the FQDN of
the VM without any issues...
What can I do here to debug my issue?
Does the engine cache the wrong result? Even after stopping and starting
the VM again, engine is only showing the hostname instead of the FQDN.
+Tomas Golembiovsky <tgolembi(a)redhat.com> can you help here?
Best regards,
Florian
_______________________________________________
Users mailing list -- users(a)ovirt.org
To unsubscribe send an email to users-leave(a)ovirt.org
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--
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Red Hat EMEA <https://www.redhat.com/>
sbonazzo(a)redhat.com
<https://www.redhat.com/>
*Red Hat respects your work life balance. Therefore there is no need to
answer this email out of your office hours.
<https://mojo.redhat.com/docs/DOC-1199578>*
10:06 a.m.
Hi,
when setting hostnamectl set-hostname "FQDN", then engine will report the real
and correct "FQDN", but this is not a good fix.
With our older Debian and Ubuntu VMs, it is working correctly, although hostname is only
reporting the short hostname. hostname -f is reporting here the correct FQDN.
BR Florian
--------------------------------------------------------------------------------------------------------------------
UBIMET GmbH - weather matters
Ing. Florian Schmid • IT Infrastruktur Austria
A-1220 Wien • Donau-City-Straße 11 • Tel +43 1 263 11 22 DW 469 • Fax +43 1 263 11 22 219
fschmid(a)ubimet.com • www.ubimet.com • Mobile: +43 664 8323379
Sitz: Wien • Firmenbuchgericht: Handelsgericht Wien • FN 248415 t
--------------------------------------------------------------------------------------------------------------------
The information contained in this message (including any attachments) is confidential and
may be legally privileged or otherwise protected from disclosure. This message is intended
solely for the addressee(s). If you are not the intended recipient, please notify the
sender by return e-mail and delete this message from your system. Any unauthorized use,
reproduction, or dissemination of this message is strictly prohibited. Please note that
e-mails are susceptible to change. UBIMET GmbH shall not be liable for the improper or
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be liable for any delay in its receipt. UBIMET GmbH accepts no liability for loss or
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Von: "Sandro Bonazzola" <sbonazzo(a)redhat.com>
An: "Florian Schmid" <fschmid(a)ubimet.com>, "Tomas Golembiovsky"
<tgolembi(a)redhat.com>
CC: "users" <users(a)ovirt.org>
Gesendet: Freitag, 17. Juli 2020 09:21:37
Betreff: Re: [ovirt-users] qemu-guest-agent on Ubuntu doesn't report FQDN
Il giorno gio 16 lug 2020 alle ore 15:55 Florian Schmid via Users < [
mailto:users@ovirt.org | users(a)ovirt.org ] > ha scritto:
Hi,
I have a problem with Ubuntu 20.04 VM reporting the correct FQDN to the engine.
Starting with this release, the ovirt-guest-agent is not available anymore.
Therefore, I have installed qemu-geust-agent with package defaults.
Now in the Engine, I only see the hostname under FQDN tab, instead the real full name with
domain.
I'm running an oVirt environment on 4.3.8.
The VM is resolveable, forward and reverse DNS entries are working.
hostname -f shows the correct FQDN.
Even adding IP and FQDN to /etc/hosts file doesn't change anything.
qemu-guest-agent version: 4.2-3ubuntu6.3
I manage this VM via ansible 2.9 and ansible is able to get the FQDN of the VM without any
issues...
What can I do here to debug my issue?
Does the engine cache the wrong result? Even after stopping and starting the VM again,
engine is only showing the hostname instead of the FQDN.
[ mailto:tgolembi@redhat.com | +Tomas Golembiovsky ] can you help here?
BQ_BEGIN
Best regards,
Florian
_______________________________________________
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]
BQ_END
--
Sandro Bonazzola
MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
[ https://www.redhat.com/ | Red Hat EMEA ]
[ mailto:sbonazzo@redhat.com | sbonazzo(a)redhat.com ]
[ https://www.redhat.com/ ]
[ https://mojo.redhat.com/docs/DOC-1199578 | Red Hat respects your work life balance.
Therefore there is no need to answer this email out of your office hours. ]
5:29 p.m.
New subject: qemu-guest-agent on Ubuntu doesn't report FQDN
Hi,
after digging a bit deeper, it looks like it is the problem with the qemu-guest-agent.
It does only report the hostname and nothing more. It uses this function: g_get_host_name
()
This function always returns the value in /etc/hostname and this is normally the short
name of the VM without the domain part.
It looks like, that the ovirt-guest-agent made this different, but this is not working
anymore with python 3.
There was a recent patch for qga -> [
https://bugzilla.redhat.com/show_bug.cgi?id=1845127 |
https://bugzilla.redhat.com/show_bug.cgi?id=1845127 ]
but this won't help me, because even when this patch would add the FQDN to oVirt back,
there won't be a package for this for Ubuntu 20.04 and probably also not for
RedHat/CentOS 8.
BR Florian
Von: "users" <users(a)ovirt.org>
An: "Sandro Bonazzola" <sbonazzo(a)redhat.com>
CC: "users" <users(a)ovirt.org>
Gesendet: Montag, 20. Juli 2020 09:06:30
Betreff: [ovirt-users] Re: qemu-guest-agent on Ubuntu doesn't report FQDN
Hi,
when setting hostnamectl set-hostname "FQDN", then engine will report the real
and correct "FQDN", but this is not a good fix.
With our older Debian and Ubuntu VMs, it is working correctly, although hostname is only
reporting the short hostname. hostname -f is reporting here the correct FQDN.
BR Florian
--------------------------------------------------------------------------------------------------------------------
UBIMET GmbH - weather matters
Ing. Florian Schmid • IT Infrastruktur Austria
A-1220 Wien • Donau-City-Straße 11 • Tel +43 1 263 11 22 DW 469 • Fax +43 1 263 11 22 219
fschmid(a)ubimet.com • www.ubimet.com • Mobile: +43 664 8323379
Sitz: Wien • Firmenbuchgericht: Handelsgericht Wien • FN 248415 t
--------------------------------------------------------------------------------------------------------------------
The information contained in this message (including any attachments) is confidential and
may be legally privileged or otherwise protected from disclosure. This message is intended
solely for the addressee(s). If you are not the intended recipient, please notify the
sender by return e-mail and delete this message from your system. Any unauthorized use,
reproduction, or dissemination of this message is strictly prohibited. Please note that
e-mails are susceptible to change. UBIMET GmbH shall not be liable for the improper or
incomplete transmission of the information contained in this communication, nor shall it
be liable for any delay in its receipt. UBIMET GmbH accepts no liability for loss or
damage caused by software viruses and you are advised to carry out a virus check on any
attachments contained in this message.
Von: "Sandro Bonazzola" <sbonazzo(a)redhat.com>
An: "Florian Schmid" <fschmid(a)ubimet.com>, "Tomas Golembiovsky"
<tgolembi(a)redhat.com>
CC: "users" <users(a)ovirt.org>
Gesendet: Freitag, 17. Juli 2020 09:21:37
Betreff: Re: [ovirt-users] qemu-guest-agent on Ubuntu doesn't report FQDN
Il giorno gio 16 lug 2020 alle ore 15:55 Florian Schmid via Users < [
mailto:users@ovirt.org | users(a)ovirt.org ] > ha scritto:
Hi,
I have a problem with Ubuntu 20.04 VM reporting the correct FQDN to the engine.
Starting with this release, the ovirt-guest-agent is not available anymore.
Therefore, I have installed qemu-geust-agent with package defaults.
Now in the Engine, I only see the hostname under FQDN tab, instead the real full name with
domain.
I'm running an oVirt environment on 4.3.8.
The VM is resolveable, forward and reverse DNS entries are working.
hostname -f shows the correct FQDN.
Even adding IP and FQDN to /etc/hosts file doesn't change anything.
qemu-guest-agent version: 4.2-3ubuntu6.3
I manage this VM via ansible 2.9 and ansible is able to get the FQDN of the VM without any
issues...
What can I do here to debug my issue?
Does the engine cache the wrong result? Even after stopping and starting the VM again,
engine is only showing the hostname instead of the FQDN.
[ mailto:tgolembi@redhat.com | +Tomas Golembiovsky ] can you help here?
BQ_BEGIN
Best regards,
Florian
_______________________________________________
Users mailing list -- [ mailto:users@ovirt.org | users(a)ovirt.org ]
To unsubscribe send an email to [ mailto:users-leave@ovirt.org | users-leave(a)ovirt.org ]
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BQ_END
--
Sandro Bonazzola
MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
[ https://www.redhat.com/ | Red Hat EMEA ]
[ mailto:sbonazzo@redhat.com | sbonazzo(a)redhat.com ]
[ https://www.redhat.com/ ]
[ https://mojo.redhat.com/docs/DOC-1199578 | Red Hat respects your work life balance.
Therefore there is no need to answer this email out of your office hours. ]
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9:37 a.m.
On Wed, Jul 22, 2020 at 5:34 PM Florian Schmid via Users
<users(a)ovirt.org> wrote:
Hi,
after digging a bit deeper, it looks like it is the problem with the qemu-guest-agent.
It does only report the hostname and nothing more. It uses this function: g_get_host_name
()
This function always returns the value in /etc/hostname and this is normally the short
name of the VM without the domain part.
It looks like, that the ovirt-guest-agent made this different,
Indeed, and from checking the git log, it seems like it did this since
the very first commit - already then,
ovirt-guest-agent/GuestAgentLinux2.py had:
def getMachineName(self):
return socket.getfqdn()
but this is not working anymore with python 3.
If in "this" you refer to ovirt-guest-agent, then it's deprecated:
https://bugzilla.redhat.com/show_bug.cgi?id=1672732
There was a recent patch for qga ->
https://bugzilla.redhat.com/show_bug.cgi?id=1845127
This bug seems to discuss something else, not directly related to your
own issue.
but this won't help me, because even when this patch would add
the FQDN to oVirt back, there won't be a package for this for Ubuntu 20.04 and
probably also not for RedHat/CentOS 8.
Not sure what you mean here. The bug is on qga, and fixing it (or your
own issue) is unrelated to oga's deprecation.
Your issue seems to be, to me:
1. oga used to report the FQDN, as returned by python's socket.getfqdn()
2. qga returns something else (and this something else might be
changed, following above bug, but likely not to what you want).
3. oVirt now uses qga instead of oga, thus changing its past behavior.
4. You want the old behavior back - basically, claiming this is a regression.
If so, then:
1. You are welcome to open a bug about this, on qga.
2. Your request *might* be rejected, on the ground of breaking
compatibility for existing/old users of qga (say, using virt-manager
or whatever other virt tool, without oga installed)
Alternatively, or if this bug is rejected, you can open two new bugs:
1. one on qga, to provide the fqdn (using, hopefully, logic similar to
python's getfqdn, although qga is written in C)
2. other on the oVirt engine, to use this new functionality of qga
instead of the existing one.
You also have another alternative - just adapt your machines to have
the fqdn as the hostname. I personally think this is the best way to
go. Have 'hostname' return the FQDN you want, and only use 'hostname
-s' where you really want it to be short. How do you set the hostnames
of your machines?
Best regards,
BR Florian
________________________________
Von: "users" <users(a)ovirt.org>
An: "Sandro Bonazzola" <sbonazzo(a)redhat.com>
CC: "users" <users(a)ovirt.org>
Gesendet: Montag, 20. Juli 2020 09:06:30
Betreff: [ovirt-users] Re: qemu-guest-agent on Ubuntu doesn't report FQDN
Hi,
when setting hostnamectl set-hostname "FQDN", then engine will report the real
and correct "FQDN", but this is not a good fix.
With our older Debian and Ubuntu VMs, it is working correctly, although hostname is only
reporting the short hostname. hostname -f is reporting here the correct FQDN.
BR Florian
--------------------------------------------------------------------------------------------------------------------
UBIMET GmbH - weather matters
Ing. Florian Schmid • IT Infrastruktur Austria
A-1220 Wien • Donau-City-Straße 11 • Tel +43 1 263 11 22 DW 469 • Fax +43 1 263 11 22
219
fschmid(a)ubimet.com • www.ubimet.com • Mobile: +43 664 8323379
Sitz: Wien • Firmenbuchgericht: Handelsgericht Wien • FN 248415 t
--------------------------------------------------------------------------------------------------------------------
The information contained in this message (including any attachments) is confidential and
may be legally privileged or otherwise protected from disclosure. This message is intended
solely for the addressee(s). If you are not the intended recipient, please notify the
sender by return e-mail and delete this message from your system. Any unauthorized use,
reproduction, or dissemination of this message is strictly prohibited. Please note that
e-mails are susceptible to change. UBIMET GmbH shall not be liable for the improper or
incomplete transmission of the information contained in this communication, nor shall it
be liable for any delay in its receipt. UBIMET GmbH accepts no liability for loss or
damage caused by software viruses and you are advised to carry out a virus check on any
attachments contained in this message.
________________________________
Von: "Sandro Bonazzola" <sbonazzo(a)redhat.com>
An: "Florian Schmid" <fschmid(a)ubimet.com>, "Tomas Golembiovsky"
<tgolembi(a)redhat.com>
CC: "users" <users(a)ovirt.org>
Gesendet: Freitag, 17. Juli 2020 09:21:37
Betreff: Re: [ovirt-users] qemu-guest-agent on Ubuntu doesn't report FQDN
Il giorno gio 16 lug 2020 alle ore 15:55 Florian Schmid via Users <users(a)ovirt.org>
ha scritto:
>
> Hi,
>
> I have a problem with Ubuntu 20.04 VM reporting the correct FQDN to the engine.
> Starting with this release, the ovirt-guest-agent is not available anymore.
>
> Therefore, I have installed qemu-geust-agent with package defaults.
>
> Now in the Engine, I only see the hostname under FQDN tab, instead the real full name
with domain.
>
> I'm running an oVirt environment on 4.3.8.
>
> The VM is resolveable, forward and reverse DNS entries are working.
> hostname -f shows the correct FQDN.
>
> Even adding IP and FQDN to /etc/hosts file doesn't change anything.
>
> qemu-guest-agent version: 4.2-3ubuntu6.3
>
> I manage this VM via ansible 2.9 and ansible is able to get the FQDN of the VM
without any issues...
>
> What can I do here to debug my issue?
> Does the engine cache the wrong result? Even after stopping and starting the VM
again, engine is only showing the hostname instead of the FQDN.
>
+Tomas Golembiovsky can you help here?
>
> Best regards,
> Florian
> _______________________________________________
> Users mailing list -- users(a)ovirt.org
> To unsubscribe send an email to users-leave(a)ovirt.org
> Privacy Statement: https://www.ovirt.org/privacy-policy.html
> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/
> List Archives:
https://lists.ovirt.org/archives/list/users@ovirt.org/message/BGGFBU24SQA...
--
Sandro Bonazzola
MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
Red Hat EMEA
sbonazzo(a)redhat.com
Red Hat respects your work life balance. Therefore there is no need to answer this email
out of your office hours.
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--
Didi
10:23 a.m.
New subject: qemu-guest-agent on Ubuntu doesn't report FQDN
Hello Yedidyah,
thank you for this great answer.
I will answer in the text below.
BR Florian
----- Ursprüngliche Mail -----
Von: "Yedidyah Bar David" <didi(a)redhat.com>
An: "Florian Schmid" <fschmid(a)ubimet.com>
CC: "Tomas Golembiovsky" <tgolembi(a)redhat.com>, "Sandro
Bonazzola" <sbonazzo(a)redhat.com>, "users" <users(a)ovirt.org>
Gesendet: Donnerstag, 23. Juli 2020 08:37:21
Betreff: Re: [ovirt-users] Re: qemu-guest-agent on Ubuntu doesn't report FQDN
On Wed, Jul 22, 2020 at 5:34 PM Florian Schmid via Users
<users(a)ovirt.org> wrote:
>
> Hi,
>
> after digging a bit deeper, it looks like it is the problem with the
qemu-guest-agent.
>
> It does only report the hostname and nothing more. It uses this function:
g_get_host_name ()
>
> This function always returns the value in /etc/hostname and this is normally the
short name of the VM without the domain part.
>
> It looks like, that the ovirt-guest-agent made this different,
Indeed, and from checking the git log, it seems like it did this since
the very first commit - already then,
ovirt-guest-agent/GuestAgentLinux2.py had:
def getMachineName(self):
return socket.getfqdn()
Correct, this is what I wanted back.
> but this is not working anymore with python 3.
If in "this" you refer to ovirt-guest-agent, then it's deprecated:
https://bugzilla.redhat.com/show_bug.cgi?id=1672732
Yes, I know. Now using the QGA with oVirt 4.3 reports only the short hostname.
>
> There was a recent patch for qga ->
https://bugzilla.redhat.com/show_bug.cgi?id=1845127
This bug seems to discuss something else, not directly related to your
own issue.
> but this won't help me, because even when this patch would add the FQDN to oVirt
back, there won't be a package for this for Ubuntu 20.04 and probably also not for
RedHat/CentOS 8.
Not sure what you mean here. The bug is on qga, and fixing it (or your
own issue) is unrelated to oga's deprecation.
I wanted to say, that this change might also impact the reported hostname, but I don't
think so...
Your issue seems to be, to me:
1. oga used to report the FQDN, as returned by python's socket.getfqdn()
2. qga returns something else (and this something else might be
changed, following above bug, but likely not to what you want).
3. oVirt now uses qga instead of oga, thus changing its past behavior.
4. You want the old behavior back - basically, claiming this is a regression.
Yes, exactly.
If so, then:
1. You are welcome to open a bug about this, on qga.
2. Your request *might* be rejected, on the ground of breaking
compatibility for existing/old users of qga (say, using virt-manager
or whatever other virt tool, without oga installed)
I'm 100 % sure, that they will reject this.
Alternatively, or if this bug is rejected, you can open two new bugs:
1. one on qga, to provide the fqdn (using, hopefully, logic similar to
python's getfqdn, although qga is written in C)
Possible, but this won't help me a lot, because even if they add a new function to
qga, oVirt would need to be changed too, to access this function instead of the one it is
using now.
2. other on the oVirt engine, to use this new functionality of qga
instead of the existing one.
Yes.
You also have another alternative - just adapt your machines to have
the fqdn as the hostname. I personally think this is the best way to
go. Have 'hostname' return the FQDN you want, and only use 'hostname
-s' where you really want it to be short. How do you set the hostnames
of your machines?
This is what I don't know, if this has some drawbacks.
I have checked this on internet, but haven't find a lot about it, what is digging
deeper.
Maybe someone here has some experience with using FQDN for hostname?
I can live with such a solution, when it doesn't have big drawbacks...
I can set the hostname via ansible, so this would not be a big problem for doing it.
>
>Best regards,
1:01 p.m.
On Thu, Jul 23, 2020 at 10:23 AM Florian Schmid <fschmid(a)ubimet.com> wrote:
Hello Yedidyah,
thank you for this great answer.
I will answer in the text below.
BR Florian
----- Ursprüngliche Mail -----
Von: "Yedidyah Bar David" <didi(a)redhat.com>
An: "Florian Schmid" <fschmid(a)ubimet.com>
CC: "Tomas Golembiovsky" <tgolembi(a)redhat.com>, "Sandro
Bonazzola" <sbonazzo(a)redhat.com>, "users" <users(a)ovirt.org>
Gesendet: Donnerstag, 23. Juli 2020 08:37:21
Betreff: Re: [ovirt-users] Re: qemu-guest-agent on Ubuntu doesn't report FQDN
On Wed, Jul 22, 2020 at 5:34 PM Florian Schmid via Users
<users(a)ovirt.org> wrote:
>>
>> Hi,
>>
>> after digging a bit deeper, it looks like it is the problem with the
qemu-guest-agent.
>>
>> It does only report the hostname and nothing more. It uses this function:
g_get_host_name ()
>>
>> This function always returns the value in /etc/hostname and this is normally the
short name of the VM without the domain part.
>>
>> It looks like, that the ovirt-guest-agent made this different,
>
>Indeed, and from checking the git log, it seems like it did this since
>the very first commit - already then,
>ovirt-guest-agent/GuestAgentLinux2.py had:
> def getMachineName(self):
> return socket.getfqdn()
Correct, this is what I wanted back.
>
>> but this is not working anymore with python 3.
>
>If in "this" you refer to ovirt-guest-agent, then it's deprecated:
>
>https://bugzilla.redhat.com/show_bug.cgi?id=1672732
Yes, I know. Now using the QGA with oVirt 4.3 reports only the short hostname.
>
>>
>> There was a recent patch for qga ->
https://bugzilla.redhat.com/show_bug.cgi?id=1845127
>
>This bug seems to discuss something else, not directly related to your
>own issue.
>
>> but this won't help me, because even when this patch would add the FQDN to
oVirt back, there won't be a package for this for Ubuntu 20.04 and probably also not
for RedHat/CentOS 8.
>
>Not sure what you mean here. The bug is on qga, and fixing it (or your
>own issue) is unrelated to oga's deprecation.
I wanted to say, that this change might also impact the reported hostname, but I
don't think so...
>
>Your issue seems to be, to me:
>
>1. oga used to report the FQDN, as returned by python's socket.getfqdn()
>2. qga returns something else (and this something else might be
>changed, following above bug, but likely not to what you want).
>3. oVirt now uses qga instead of oga, thus changing its past behavior.
>4. You want the old behavior back - basically, claiming this is a regression.
Yes, exactly.
>
>If so, then:
>
>1. You are welcome to open a bug about this, on qga.
>2. Your request *might* be rejected, on the ground of breaking
>compatibility for existing/old users of qga (say, using virt-manager
>or whatever other virt tool, without oga installed)
I'm 100 % sure, that they will reject this.
>
>Alternatively, or if this bug is rejected, you can open two new bugs:
>
>1. one on qga, to provide the fqdn (using, hopefully, logic similar to
>python's getfqdn, although qga is written in C)
Possible, but this won't help me a lot, because even if they add a new function to
qga, oVirt would need to be changed too, to access this function instead of the one it is
using now.
>2. other on the oVirt engine, to use this new functionality of qga
>instead of the existing one.
Yes.
>
>You also have another alternative - just adapt your machines to have
>the fqdn as the hostname. I personally think this is the best way to
>go. Have 'hostname' return the FQDN you want, and only use 'hostname
>-s' where you really want it to be short. How do you set the hostnames
>of your machines?
This is what I don't know, if this has some drawbacks.
I have checked this on internet, but haven't find a lot about it, what is digging
deeper.
Maybe someone here has some experience with using FQDN for hostname?
I use this on all my machines (CentOS/RHEL ones, anyway) and all seems ok.
I do recommend, obviously, that you do your own research/testing.
I can live with such a solution, when it doesn't have big drawbacks...
The only actual drawback I can think of is that the hostname is limited
to 64 chars, whereas the FQDN can be up to 255 chars. So if you want a
longer FQDN, you can't use it as the hostname.
Another obvious drawback is that applications that use the full hostname
for reporting, as opposed to explicitly using 'hostname -s', will now
have the FQDN in their reports, which you might find too long etc.
I personally consider this an advantage, not a drawback. Memory and disk
space are cheap these days, but time is still expensive - if you get a
report about "servera" instead of "servera.somedomain" and it causes
you
to spend time understanding what server this is, it's more waste, IMO,
than having "servera.somedomain" everywhere. But that's obviously a
personal matter...
Best regards,
--
Didi
3:46 p.m.
New subject: qemu-guest-agent on Ubuntu doesn't report FQDN
Hi Didi,
thank you very much for your help.
We will use the FQDN as hostname. This seems to work fine and it will report the full name
again in oVirt.
BR Florian
----- Ursprüngliche Mail -----
Von: "Yedidyah Bar David" <didi(a)redhat.com>
An: "Florian Schmid" <fschmid(a)ubimet.com>
CC: "Tomas Golembiovsky" <tgolembi(a)redhat.com>, "Sandro
Bonazzola" <sbonazzo(a)redhat.com>, "users" <users(a)ovirt.org>
Gesendet: Donnerstag, 23. Juli 2020 12:01:14
Betreff: Re: [ovirt-users] Re: qemu-guest-agent on Ubuntu doesn't report FQDN
On Thu, Jul 23, 2020 at 10:23 AM Florian Schmid <fschmid(a)ubimet.com> wrote:
Hello Yedidyah,
thank you for this great answer.
I will answer in the text below.
BR Florian
----- Ursprüngliche Mail -----
Von: "Yedidyah Bar David" <didi(a)redhat.com>
An: "Florian Schmid" <fschmid(a)ubimet.com>
CC: "Tomas Golembiovsky" <tgolembi(a)redhat.com>, "Sandro
Bonazzola" <sbonazzo(a)redhat.com>, "users" <users(a)ovirt.org>
Gesendet: Donnerstag, 23. Juli 2020 08:37:21
Betreff: Re: [ovirt-users] Re: qemu-guest-agent on Ubuntu doesn't report FQDN
On Wed, Jul 22, 2020 at 5:34 PM Florian Schmid via Users
<users(a)ovirt.org> wrote:
>>
>> Hi,
>>
>> after digging a bit deeper, it looks like it is the problem with the
qemu-guest-agent.
>>
>> It does only report the hostname and nothing more. It uses this function:
g_get_host_name ()
>>
>> This function always returns the value in /etc/hostname and this is normally the
short name of the VM without the domain part.
>>
>> It looks like, that the ovirt-guest-agent made this different,
>
>Indeed, and from checking the git log, it seems like it did this since
>the very first commit - already then,
>ovirt-guest-agent/GuestAgentLinux2.py had:
> def getMachineName(self):
> return socket.getfqdn()
Correct, this is what I wanted back.
>
>> but this is not working anymore with python 3.
>
>If in "this" you refer to ovirt-guest-agent, then it's deprecated:
>
>https://bugzilla.redhat.com/show_bug.cgi?id=1672732
Yes, I know. Now using the QGA with oVirt 4.3 reports only the short hostname.
>
>>
>> There was a recent patch for qga ->
https://bugzilla.redhat.com/show_bug.cgi?id=1845127
>
>This bug seems to discuss something else, not directly related to your
>own issue.
>
>> but this won't help me, because even when this patch would add the FQDN to
oVirt back, there won't be a package for this for Ubuntu 20.04 and probably also not
for RedHat/CentOS 8.
>
>Not sure what you mean here. The bug is on qga, and fixing it (or your
>own issue) is unrelated to oga's deprecation.
I wanted to say, that this change might also impact the reported hostname, but I
don't think so...
>
>Your issue seems to be, to me:
>
>1. oga used to report the FQDN, as returned by python's socket.getfqdn()
>2. qga returns something else (and this something else might be
>changed, following above bug, but likely not to what you want).
>3. oVirt now uses qga instead of oga, thus changing its past behavior.
>4. You want the old behavior back - basically, claiming this is a regression.
Yes, exactly.
>
>If so, then:
>
>1. You are welcome to open a bug about this, on qga.
>2. Your request *might* be rejected, on the ground of breaking
>compatibility for existing/old users of qga (say, using virt-manager
>or whatever other virt tool, without oga installed)
I'm 100 % sure, that they will reject this.
>
>Alternatively, or if this bug is rejected, you can open two new bugs:
>
>1. one on qga, to provide the fqdn (using, hopefully, logic similar to
>python's getfqdn, although qga is written in C)
Possible, but this won't help me a lot, because even if they add a new function to
qga, oVirt would need to be changed too, to access this function instead of the one it is
using now.
>2. other on the oVirt engine, to use this new functionality of qga
>instead of the existing one.
Yes.
>
>You also have another alternative - just adapt your machines to have
>the fqdn as the hostname. I personally think this is the best way to
>go. Have 'hostname' return the FQDN you want, and only use 'hostname
>-s' where you really want it to be short. How do you set the hostnames
>of your machines?
This is what I don't know, if this has some drawbacks.
I have checked this on internet, but haven't find a lot about it, what is digging
deeper.
Maybe someone here has some experience with using FQDN for hostname?
I use this on all my machines (CentOS/RHEL ones, anyway) and all seems ok.
I do recommend, obviously, that you do your own research/testing.
I can live with such a solution, when it doesn't have big drawbacks...
The only actual drawback I can think of is that the hostname is limited
to 64 chars, whereas the FQDN can be up to 255 chars. So if you want a
longer FQDN, you can't use it as the hostname.
Another obvious drawback is that applications that use the full hostname
for reporting, as opposed to explicitly using 'hostname -s', will now
have the FQDN in their reports, which you might find too long etc.
I personally consider this an advantage, not a drawback. Memory and disk
space are cheap these days, but time is still expensive - if you get a
report about "servera" instead of "servera.somedomain" and it causes
you
to spend time understanding what server this is, it's more waste, IMO,
than having "servera.somedomain" everywhere. But that's obviously a
personal matter...
Best regards,
--
Didi
5:42 p.m.
New subject: Any billing solution is available or under development ?
Hi,
We would like to join or develop some billing solution for oVirt.
Is there any billing solution under development? or testing phase ?
Mani
1582
days inactive
1590
days old
10 comments
5 participants
participants (5)
-
Dhanasekar Mani -
Florian Schmid -
Sandro Bonazzola -
Strahil Nikolov -
Yedidyah Bar David