1:48 a.m.
Hi,
we made this solution for us:
We add a cloud-init script to the cloud image, before we add this to our templates.
In /etc/cloud/cloud.cfg.d/, we create a file 98_runcmd.cfg with the following content:
write_files:
- content: |
network: {config: disabled}
path: /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
permissions: '0700'
- content: |
#!/bin/bash
rm /etc/cloud/cloud.cfg.d/90_dpkg.cfg
path: /var/lib/cloud/scripts/per-boot/datasources.sh
permissions: '0700'
This should create the file /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg after
first cloud-init run and then network config is never touched again.
Without disabling cloud-init completely, you are able for example to set a root password
to login into VM console, when you have to debug something and can't login anymore to
ssh.
We have password logins disabled by default over ssh.
We also remove /etc/cloud/cloud.cfg.d/90_dpkg.cfg and set datasource_list to
["NoCloud", "ConfigDrive"] in /etc/cloud/cloud.cfg
-> VM will reboot with this a way faster. Without it, cloud-init will look for too much
different location to find a valid config.
LG Florian
Von: "Eitan Raviv" <eraviv(a)redhat.com>
An: "Ryan McCabe" <rmccabe(a)redhat.com>
CC: "users" <users(a)ovirt.org>, "geoff carr"
<geoff.carr(a)beazley.com>
Gesendet: Mittwoch, 20. Juni 2018 08:20:54
Betreff: [ovirt-users] Re: cloud-init reverting static network settings to DHCP on
shutdown and restart
Hi Ryan,
This behaviour reproduces for me as well with
ovirt-engine-latest-nightly-snapshot,
cloud-init-0.7.9-24.el7.x86_64,
Centos-7.4.1708 VM.
Can you comment?
Thanks
On Thu, Jun 7, 2018 at 10:45 AM, Luca 'remix_tj' Lorenzetto < [
mailto:lorenzetto.luca@gmail.com | lorenzetto.luca(a)gmail.com ] > wrote:
Hello Geoff,
On Wed, Jun 6, 2018 at 9:14 PM, < [ mailto:geoff.carr@beazley.com |
geoff.carr(a)beazley.com ] > wrote:
I think that before a shutdown / restart the cloud-init configuration
is attached as there is /dev/sr1 visible. On shutdown / restart the config is no longer
attached and there is seemingly an error related to not being able to find the data
source: -
2018-06-06 15:15:11,297 - handlers.py[DEBUG]: finish: init-network/search-NoCloudNet:
SUCCESS: no network data found from DataSourceNoCloudNet
2018-06-06 15:15:11,298 - util.py[WARNING]: No instance datasource found! Likely bad
things to come!
2018-06-06 15:15:11,298 - util.py[DEBUG]: No instance datasource found! Likely bad things
to come!
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/cloudinit/cmd/main.py", line 236, in
main_init
init.fetch(existing=existing)
File "/usr/lib/python2.7/site-packages/cloudinit/stages.py", line 343, in fetch
return self._get_data_source(existing=existing)
File "/usr/lib/python2.7/site-packages/cloudinit/stages.py", line 253, in
_get_data_source
pkg_list, self.reporter)
File "/usr/lib/python2.7/site-packages/cloudinit/sources/__init__.py", line
320, in find_source
raise DataSourceNotFoundException(msg)
DataSourceNotFoundException: Did not find any data source, searched classes:
(DataSourceNoCloudNet)
2018-06-06 15:15:11,302 - util.py[DEBUG]: Reading from /sys/class/net/eth0/carrier
(quiet=False)
2018-06-06 15:15:11,303 - util.py[DEBUG]: Read 2 bytes from /sys/class/net/eth0/carrier
2018-06-06 15:15:11,303 - util.py[DEBUG]: Reading from /sys/class/net/eth0/address
(quiet=False)
2018-06-06 15:15:11,303 - util.py[DEBUG]: Read 18 bytes from /sys/class/net/eth0/address
2018-06-06 15:15:11,303 - stages.py[DEBUG]: applying net config names for
{'version': 1, 'config': [{'subnets': [{'type':
'dhcp'}], 'type': 'physical', 'name': 'eth0',
'mac_address': '00:1a:4a:16:01:05'}]}
I have the same issue since some months. Since cloud-init doesn't sees
any configuration, applies the default, which is to use dhcp.
I don't remember if it is a bug of cloud-init or a misconfiguration,
but now i solved removing cloud-init package after the first boot.
In case you want redeploying, you can keep cloud-init and disable its
work by disabling the service:
touch /etc/cloud/cloud-init.disabled
Luca
--
"E' assurdo impiegare gli uomini di intelligenza eccellente per fare
calcoli che potrebbero essere affidati a chiunque se si usassero delle
macchine"
Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716)
"Internet è la più grande biblioteca del mondo.
Ma il problema è che i libri sono tutti sparsi sul pavimento"
John Allen Paulos, Matematico (1945-vivente)
Luca 'remix_tj' Lorenzetto, [ http://www.remixtj.net/ | http://www.remixtj.net ] ,
< [ mailto:lorenzetto.luca@gmail.com | lorenzetto.luca(a)gmail.com ] >
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