yahoo-eng-team team mailing list archive

[Ryan Harper <1881806@xxxxxxxxxxxxxxxxxx>]

This issue has already been fixed in upstream cloud-init, see:

https://github.com/canonical/cloud-
init/commit/5352dd99eb2937b4eaaaf596b40ad7ca69d87f64

And

 https://bugs.launchpad.net/cloud-init/+bug/1639263

For downstream, you'll need RedHat/Centos to cherry pick this commit.

If possible, you can test with our daily rpm build for Centos8 using
this COPR repo:

https://copr.fedorainfracloud.org/coprs/g/cloud-init/cloud-init-dev/


** Changed in: cloud-init
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1881806

Title:
  cloud-init fails to initialize with virtual router

Status in cloud-init:
  Invalid
Status in CentOS:
  Unknown

Bug description:
  Cloud-init fails to initialize with RHEL8.1 and CentOS8.1 (RPM cloud-
  init-18.5-7.el8_1.1.noarch) when routing to the VMs are provider by
  virtual router (vrouter). In this scenario, we are spawning a VM on
  OpenStack using Contrail as the network provider. With cloud-init-18.5
  version, we see the following exception during the VM boot phase
  causing init and final stages of cloud-init to fail.

  Impact: cloud-init fails to inject ssh-keys, grow root partition and
  other critical functions.

  Version cloud-init-18.2-6.el8.noarch of cloud-init did not have this
  issue.

  Reproducibility: always
   

  2020-06-02 19:17:15,641 - util.py[WARNING]: failed stage init
  failed run of stage init
  ------------------------------------------------------------
  Traceback (most recent call last):
    File "/usr/lib/python3.6/site-packages/cloudinit/cmd/main.py", line 652, in status_wrapper
      ret = functor(name, args)
    File "/usr/lib/python3.6/site-packages/cloudinit/cmd/main.py", line 362, in main_init
      init.apply_network_config(bring_up=bool(mode != sources.DSMODE_LOCAL))
    File "/usr/lib/python3.6/site-packages/cloudinit/stages.py", line 649, in apply_network_config
      netcfg, src = self._find_networking_config()
    File "/usr/lib/python3.6/site-packages/cloudinit/stages.py", line 636, in _find_networking_config
      if self.datasource and hasattr(self.datasource, 'network_config'):
    File "/usr/lib/python3.6/site-packages/cloudinit/sources/DataSourceOpenStack.py", line 115, in network_config
      self.network_json, known_macs=None)
    File "/usr/lib/python3.6/site-packages/cloudinit/sources/helpers/openstack.py", line 645, in convert_net_json
      'Unknown network_data link type: %s' % link['type'])
  ValueError: Unknown network_data link type: vrouter

  The error seems to be coming from
  cloudinit/sources/helpers/openstack.py file which only expects 'link'
  type to be only of one of the following:

      valid_keys = {
          'physical': [
              'name',
              'type',
              'mac_address',
              'subnets',
              'params',
              'mtu',
          ],

  However, with Contrail, the network_config object that gets passed to
  the method convert_net_json looks something like the following object:

  {
    "services": [],
    "networks": [
      {
        "network_id": "f42c8806-c128-4ef8-af9e-d4a3856dde23",
        "type": "ipv4",
        "netmask": "255.255.255.192",
        "link": "tap722bcc7f-5a",
        "routes": [
          {
            "netmask": "0.0.0.0",
            "network": "0.0.0.0",
            "gateway": "10.140.145.126"
          }
        ],
        "ip_address": "10.140.145.110",
        "id": "network0"
      }
    ],
    "links": [
      {
        "type": "vrouter",
        "vif_id": "722bcc7f-5ae5-4564-ad43-ff9a5357dd36",
        "ethernet_mac_address": "02:72:2b:cc:7f:5a",
        "id": "tap722bcc7f-5a",
        "mtu": null
      }
    ]
  }

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