build openeuler maas image and deploy as VM of KVM pod

[Zhanglei Mao]

Reproduce like:

1. Using packer to build a OpenEuler MAAS image with pattern of centos7

2. Upload into maas as:
$ maas root boot-resources create name=openeuler20.03 title="openeuler 20.03 LTS" base_image=ubuntu/focal architecture=amd64/generic content@=openeuler2003.tar.gz

3. Deploy this image, it will report below error just after finished download image.

Running curtin builtin curthooks
finish: cmd-install/stage-curthooks/builtin/cmd-curthooks: FAIL: curtin command curthooks
Traceback (most recent call last):
  File "/curtin/curtin/distro.py", line 120, in get_distroinfo
    variant = name_to_distro(variant_name)
  File "/curtin/curtin/distro.py", line 57, in name_to_distro
    return DISTROS[DISTROS.index(distname)]
ValueError: tuple.index(x): x not in tuple

[Zhanglei Mao (zhanglei-mao)]

I guess MAAS expect specific distname, but I didn't find a way to trace or debug as it will shutdown machine immediately. Try to inject comand to the preseeds/curtin_userdata_custom file, but get snapfuse readonly.

[Zhanglei Mao (zhanglei-mao)]

The MAAS version is 3.1.0 (installed by sanp)

[Alberto Donato (ack)]

Can you please check (and possibly attach) the machine log for errors. It's under /var/snap/maas/common/log/rsyslog/$machine_name/$date/messages

[Zhanglei Mao (zhanglei-mao)]

@Alberto Thanks for help. Below is log file.

[Zhanglei Mao (zhanglei-mao)]

@Alberto, Do you mean I can upgrade to lates MAAS like 3.2 and then it will work.

[Alberto Donato (ack)]

I'm not sure what the issue is. It would be good if someone from the Curtin team could advise

[Zhanglei Mao (zhanglei-mao)]

It can be deploy as rhel customer images with below adjustments:
curtin/curtin$ sudo vi distro.py
DISTRO_NAMES = ['arch', 'centos', 'debian', 'fedora', 'freebsd', 'gentoo',
                'opensuse', 'redhat', 'rhel', 'sles', 'suse', 'ubuntu', 'openEuler']
...

OS_FAMILIES = {
    DISTROS.debian: [DISTROS.debian, DISTROS.ubuntu],
    DISTROS.redhat: [DISTROS.centos, DISTROS.fedora, DISTROS.redhat,
                     DISTROS.rhel, DISTROS.openEuler],

Let euler of to be detected as rhel8 (rpm -E "%rhel")
[root@vm1-openeuler ~]# echo "%rhel 8" >> /etc/rpm/macros.dist
[root@vm1-openeuler ~]# rpm -E "%rhel"
8
[root@vm1-openeuler ~]#

$ maas root boot-resources create name=rhel/8 title="OpenEuler 2003" architecture=amd64/generic content@=openeuler.tar.gz #base ubuntu is still ubuntu; but curtin configure are difference;

Deploy as "Redhat Enterprise Linux" -> "OpenEuler 2003"

[Zhanglei Mao (zhanglei-mao)]

After deploy, it cloud-init would fail like:

2022-06-21 02:30:15,216 - stages.py[ERROR]: Unable to render networking. Network config is likely broken: No available network renderers found. Searched through list: ['eni', 'sysconfig', 'netplan']

2022-06-21 02:30:15,192 - util.py[DEBUG]: Running command ['ip', '-6', 'addr', 'show', 'permanent', 'scope', 'global'] with allowed return codes [0] (shell=False, capture=True)
2022-06-21 02:30:15,206 - util.py[DEBUG]: Running command ['ip', '-4', 'addr', 'show'] with allowed return codes [0] (shell=False, capture=True)
2022-06-21 02:30:15,210 - __init__.py[DEBUG]: no work necessary for renaming of [['52:54:00:9b:71:20', 'ens4', 'virtio_net', '0x0001']]
2022-06-21 02:30:15,210 - stages.py[INFO]: Applying network configuration from system_cfg bringup=False: {'config': [{'id': 'ens4', 'mac_address': '52:54:00:9b:71:20', 'mtu': 1500, 'name': 'ens4', 'subnets': [{'address': '192.168.122.90/24', 'dns_nameservers': ['192.168.122.12'], 'dns_search': ['maas'], 'gateway': '192.168.122.1', 'type': 'static'}], 'type': 'physical'}, {'address': ['192.168.122.12'], 'search': ['maas'], 'type': 'nameserver'}], 'version': 1}
2022-06-21 02:30:15,215 - util.py[DEBUG]: Reading from /etc/os-release (quiet=False)
2022-06-21 02:30:15,215 - util.py[DEBUG]: Read 136 bytes from /etc/os-release
2022-06-21 02:30:15,216 - stages.py[ERROR]: Unable to render networking. Network config is likely broken: No available network renderers found. Searched through list: ['eni', 'sysconfig', 'netplan']

[Zhanglei Mao (zhanglei-mao)]

openEuler use same method for network as redhat, below adjust can make it workable.

[root@vm-k8s-m1 ~]# grep ID /etc/os-release
ID="openEuler"
VERSION_ID="20.03"
[root@vm-k8s-m1 ~]# cloud-init clean
[root@vm-k8s-m1 ~]# cloud-init init --local
Cloud-init v. 19.4 running 'init-local' at Wed, 22 Jun 2022 06:45:52 +0000. Up 5776.60 seconds.
2022-06-22 06:45:52,487 - stages.py[ERROR]: Unable to render networking. Network config is likely broken: No available network renderers found. Searched through list: ['eni', 'sysconfig', 'netplan']
[root@vm-k8s-m1 ~]# vi /usr/lib/python3.7/site-packages/cloudinit/net/sysconfig.py
[root@vm-k8s-m1 ~]# grep openeuler /usr/lib/python3.7/site-packages/cloudinit/net/sysconfig.py
KNOWN_DISTROS = ['centos', 'fedora', 'rhel', 'suse', 'openeuler']
[root@vm-k8s-m1 ~]# grep openEuler /usr/lib/python3.7/site-packages/cloudinit/util.py
/usr/lib/python3.7/site-packages/cloudinit/util.py: 'arch', 'centos', 'debian', 'fedora', 'rhel', 'suse', 'openEuler'):
[root@vm-k8s-m1 ~]# vi /usr/lib/python3.7/site-packages/cloudinit/util.py
root@vm-k8s-m1 ~]# grep openeuler /usr/lib/python3.7/site-packages/cloudinit/util.py
                'arch', 'centos', 'debian', 'fedora', 'rhel', 'suse', 'openeuler'):
[root@vm-k8s-m1 ~]# cloud-init clean
[root@vm-k8s-m1 ~]# cloud-init init --local
Cloud-init v. 19.4 running 'init-local' at Wed, 22 Jun 2022 06:54:23 +0000. Up 6287.66 seconds.
-------------------------------------------------------------------------------------------

[Zhanglei Mao (zhanglei-mao)]

A workaround to deploy pack build image is to pretend openEuler images as a rhel8. It can pass in my test without any modification for cloud-init and curtin, below two change can be apply in packer build kickstart configure file too:

echo "%rhel 8" >> /etc/rpm/macros.dist
sed -i s/\^ID=.*\$/ID=\"rhel\"/ /etc/os-release

The upload command are below:
maas root boot-resources create name=rhel/8 title="OpenEuler 2003" architecture=amd64/generic content@=openeuler.tar.gz

[Alexsander de Souza (alexsander-souza)]

Until Curtin has proper openeuler support MAAS cannot officially support it also. I'm moving this to a feature request. I suggest you move this discussion to https://discourse.maas.io/ where the community can assist you.