Hi All!
I'm trying to configure network in VMs created from template, and see
strange behaviour from cloud-init.
cloud-init installed and enabled in template.
ver cloud-init-0.7.9-24.el7.centos.1.x86_64
guest Centos 7.5
ovirt 4.2.7 from ovirt-releases-42-pre repo
1. I use "run once" with initial run - use cloud-init - networks
in-guest net iface : eth0
add new - static
enter address, mask, gw
ipv6 none
Run (once) and cloud-init configure ifcfg-eth0 for that address
(successfully).
2. I shutdown that VM and use "Run" (regular) without "use cloud init"
in VM properties, awaiting that above configurations are saved (and
booted with it).
But because "use cloud init" not checked, and cloud-init service
enabled, it start, cannot find datasource and drop configuration to
default (dhcp).
In cloud-init.log
2018-11-20 13:53:24,153 - util.py[WARNING]: No instance datasource
found! Likely bad things to come!
2018-11-20 13:53:24,153 - 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)
2018-11-20 13:53:24,194 - stages.py[DEBUG]: applying net config names
for {'version': 1, 'config': [{'subnets': [{'type': 'dhcp'}],
'type': 'physical', 'name': 'eth0', 'mac_address': '56:6f:21:4a:00:04'}]}
It reverts config as in here
https://lists.ovirt.org/archives/list/users@ovirt.org/thread/NE27UO4WNZIC27GZY4D2DCFX4DIYFBQP/
3. then I found bug
https://bugzilla.redhat.com/show_bug.cgi?id=1439373#c5
and when "run once" I disable network config as in that comment.
Shutdown, Run (not once) and voila! Ip address are static!
2018-11-20 15:07:31,601 - handlers.py[DEBUG]: finish:
init-network/search-NoCloudNet: SUCCESS: no network data found from
DataSource NoCloudNet
.....
2018-11-20 15:07:31,602 - util.py[WARNING]: No instance datasource
found! Likely bad things to come!
2018-11-20 15:07:31,602 - util.py[DEBUG]: No instance datasource found!
Likely bad things to come!
2018-11-20 15:07:31,639 - stages.py[DEBUG]: network config disabled by
system_cfg
2018-11-20 15:07:31,639 - stages.py[INFO]: network config is disabled by
system_cfg
2018-11-20 15:07:31,639 - main.py[DEBUG]: [net] Exiting without
datasource in local mode
2018-11-20 15:07:31,640 - util.py[DEBUG]: Reading from /proc/uptime
(quiet=False)
2018-11-20 15:07:31,640 - util.py[DEBUG]: Read 12 bytes from /proc/uptime
2018-11-20 15:07:31,640 - util.py[DEBUG]: cloud-init mode 'init' took
0.287 seconds (0.29)
2018-11-20 15:07:31,640 - handlers.py[DEBUG]: finish: init-network:
SUCCESS: searching for network datasources
"cloud-init used to use a "marker" file that it created on initial
execution. If that "marker" file existed it would not rerun on reboot. "
- are it not working in ovirt/this cloud-init version ?
--
Mike
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