Precheck's rabbitmq task will fail if not indicating api_interface in globals.yml

Hi, api_interface is defined in group_vars/all too. This means if you don't specify the var in globals will always use default value in group_vars.

I you comment value in globals should be working too.

https://github.com/openstack/kolla-ansible/blob/master/ansible/group_vars/all.yml#L132

I don't see a bug here.

Regards

Marked as incomplete, please add more information to try understand your issue.

Regards

Hi,

Actually that's what I though it should be but It's not like you said. I left the variable uncommented by default and ran into this error.

Kolla-Ansible 5.0.1
Kolla 5.0.1
Ubuntu 16.04

Kindly post full error that you are getting and try executing like:
kolla-ansible prechecks -vi <inventory file>

Also post what is in your /etc/hosts file

dangtrinhnt (OP) has documented this on his blog
(http://www.dangtrinh.com/2017/10/openstack-kolla-ansible-prechecks-error.html)

TASK [rabbitmq : fail]
fatal: [localhost]: FAILED! => {"failed": true, "msg": "The conditional check 'item.stdout.find(hostvars[item['item']]['ansible_' ~ hostvars[item['item']]['api_interface']]['ipv4']['address']) == -1' failed. The error was: error while evaluating conditional (item.stdout.find(hostvars[item['item']]['ansible_' ~ hostvars[item['item']]['api_interface']]['ipv4']['address']) == -1): 'dict object' has no attribute 'api_interface'

The error appears to have been in '/usr/local/share/kolla-ansible/ansible/roles/rabbitmq/tasks/precheck.yml': line 59, column 3, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:
- fail: msg="Hostname has to resolve to IP address of api_interface"
  ^ here "}

Can reproduce this. With a fresh Ubuntu 16.04 /etc/hosts.

kolla-ansible prechecks -vi <inventory file>
does not yield more detail
(Only other warning I get is "[WARNING]: Found variable using reserved name: action")

cat /etc/hosts
"
127.0.1.1 localhost
127.0.0.1 ubuntu
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
"
... will produce the 'error while evaluating conditional' as described above.

But the check fails as intended, and more correctly, if
 api_interface: "{{ network_interface }}"
gets uncommented as described above.

TASK [rabbitmq : fail] ****************************************************************************************
failed: [localhost] (item={'_ansible_parsed': True, 'stderr_lines': [], u'cmd': [u'getent', u'ahostsv4', u'ubuntu'], u'end': u'2017-11-24 00:31:30.840236', '_ansible_no_log': False, u'stdout': u'127.0.0.1 STREAM ubuntu
127.0.0.1 DGRAM
127.0.0.1 RAW ', '_ansible_item_result': True, u'changed': False, 'item': u'localhost', u'delta': u'0:00:00.002361', u'stderr': u'', u'rc': 0, u'invocation': {u'module_args': {u'warn': True, u'executable': None, u'_uses_shell': False, u'_raw_params': u'getent ahostsv4 ubuntu', u'removes': None, u'creates': None, u'chdir': None, u'stdin': None}}, 'stdout_lines': [u'127.0.0.1 STREAM ubuntu', u'127.0.0.1 DGRAM ', u'127.0.0.1 RAW '], u'start': u'2017-11-24 00:31:30.837875', 'failed': False}) => {"changed": false, "failed": true, "item": {"changed": false, "cmd": ["getent", "ahostsv4", "ubuntu"], "delta": "0:00:00.002361", "end": "2017-11-24 00:31:30.840236", "failed": false, "invocation": {"module_args": {"_raw_params": "getent ahostsv4 ubuntu", "_uses_shell": false, "chdir": null, "creates": null, "executable": null, "removes": null, "stdin": null, "warn": true}}, "item": "localhost", "rc": 0, "start": "2017-11-24 00:31:30.837875", "stderr": "", "stderr_lines": [], "stdout": "127.0.0.1 STREAM ubuntu
127.0.0.1 DGRAM
127.0.0.1 RAW ", "stdout_lines": ["127.0.0.1 STREAM ubuntu", "127.0.0.1 DGRAM ", "127.0.0.1 RAW "]}, "msg": "Hostname has to resolve to IP address of api_interface"}

Furthermore, the check succeeds (skipps) correctly, after fixing the prepared setup, and pointing the hostname towards the api_interface IP

root@ubuntu:/# cat /etc/hosts
192.168.2.123 ubuntu
127.0.1.1 localhost
#127.0.0.1 ubuntu
[...]

TASK [rabbitmq : fail] ****************************************************************************************
skipping: [localhost] => (item={'_ansible_parsed': True, 'stderr_lines': [], u'cmd': [u'getent', u'ahostsv4', u'ubuntu'], u'end': u'2017-11-24 00:35:57.440438', '_ansible_no_log': False, u'stdout': u'192.168.2.123 STREAM ubuntu\n192.168.2.123 DGRAM \n192.168.2.123 RAW ', '_ansible_item_result': True, u'changed': False, 'item': u'localhost', u'delta': u'0:00:00.001882', u'stderr': u'', u'rc': 0, u'invocation': {u'module_args': {u'warn': True, u'executable': None, u'_uses_shell': False, u'_raw_params': u'getent ahostsv4 ubuntu', u'removes': ...

Repro for centos 7.4 attached. Happens when following the doc at https://docs.openstack.org/kolla-kubernetes/latest/deployment-guide.html, Version: "UPDATED: 2017-11-20 17:38"

[Expired for kolla-ansible because there has been no activity for 60 days.]

Thanks D Haas (uz6945) and Alvaro Aleman (alvaroaleman) for reporting. I will work on a fix for this.