Prechecks fail on Xenial with "ERROR! 'ansible_python' is undefined"

[Ben Swartzlander]

I followed the quick start guide using the "deployment" path on Ubuntu Xenial. It fails at the prechecks step:

# kolla-ansible prechecks -i /root/all-in-one
Pre-deployment checking : ansible-playbook -i /root/all-in-one -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml -e CONFIG_DIR=/etc/kolla -e action=precheck /usr/local/share/kolla-ansible/ansible/site.yml

PLAY [Gather facts for all hosts] **********************************************

TASK [setup] *******************************************************************
ok: [localhost]

PLAY [Gather facts for all hosts (if using --limit)] ***************************

TASK [setup] *******************************************************************
skipping: [localhost] => (item=localhost)

PLAY [Detect openstack_release variable] ***************************************

TASK [Get current kolla-ansible version number] ********************************
ok: [localhost -> localhost]

TASK [Set openstack_release variable] ******************************************
ok: [localhost]

PLAY [Apply role prechecks] ****************************************************

TASK [setup] *******************************************************************
ok: [localhost]

TASK [prechecks : include] *****************************************************
included: /usr/local/share/kolla-ansible/ansible/roles/prechecks/tasks/port_checks.yml for localhost

TASK [prechecks : Checking the api_interface is present] ***********************
skipping: [localhost]

TASK [prechecks : Checking the api_interface is active] ************************
skipping: [localhost]

TASK [prechecks : Checking the api_interface configuration] ********************
skipping: [localhost]

TASK [prechecks : Checking the api_interface ip address configuration] *********
skipping: [localhost]

TASK [prechecks : include] *****************************************************
included: /usr/local/share/kolla-ansible/ansible/roles/prechecks/tasks/service_checks.yml for localhost

TASK [prechecks : Checking Docker version] *************************************
ok: [localhost]

TASK [prechecks : Checking empty passwords in passwords.yml. Run kolla-genpwd if this task fails] ***
ok: [localhost -> localhost]

TASK [prechecks : include] *****************************************************
included: /usr/local/share/kolla-ansible/ansible/roles/prechecks/tasks/package_checks.yml for localhost

TASK [prechecks : Checking docker-py version] **********************************
fatal: [localhost]: FAILED! => {"failed": true, "msg": "ERROR! 'ansible_python' is undefined"}

PLAY RECAP *********************************************************************
localhost : ok=9 changed=0 unreachable=0 failed=1

Command failed ansible-playbook -i /root/all-in-one -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml -e CONFIG_DIR=/etc/kolla -e action=precheck /usr/local/share/kolla-ansible/ansible/site.yml

[shaofeng cheng (shaofeng-cheng)]

This patch caused by error.
https://review.openstack.org/#/c/424515/

[shaofeng cheng (shaofeng-cheng)]

Please exec command in kolla-master

pip list | grep ansible

if fine,exec command

ansible localhost -m setup -a "filter=ansible_python"

[Simon Guyennet (sguyennet)]

I've got the exact same issue on Xenial.

# pip list | grep ansible
ansible (2.0.0.2)
kolla-ansible (4.0.0)

# ansible localhost -m setup -a "filter=ansible_python"
localhost | SUCCESS => {
    "ansible_facts": {},
    "changed": false
}

# kolla-ansible prechecks -i /usr/local/share/kolla-ansible/ansible/inventory/all-in-one
Pre-deployment checking : ansible-playbook -i /usr/local/share/kolla-ansible/ansible/inventory/all-in-one -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml -e CONFIG_DIR=/etc/kolla -e action=precheck /usr/local/share/kolla-ansible/ansible/site.yml

PLAY [Gather facts for all hosts] **********************************************

TASK [setup] *******************************************************************
ok: [localhost]

PLAY [Gather facts for all hosts (if using --limit)] ***************************

TASK [setup] *******************************************************************
skipping: [localhost] => (item=localhost)

PLAY [Detect openstack_release variable] ***************************************

TASK [Get current kolla-ansible version number] ********************************
ok: [localhost -> localhost]

TASK [Set openstack_release variable] ******************************************
ok: [localhost]

PLAY [Apply role prechecks] ****************************************************

TASK [setup] *******************************************************************
ok: [localhost]

TASK [prechecks : include] *****************************************************
included: /usr/local/share/kolla-ansible/ansible/roles/prechecks/tasks/port_checks.yml for localhost

TASK [prechecks : Checking the api_interface is present] ***********************
skipping: [localhost]

TASK [prechecks : Checking the api_interface is active] ************************
skipping: [localhost]

TASK [prechecks : Checking the api_interface configuration] ********************
skipping: [localhost]

TASK [prechecks : Checking the api_interface ip address configuration] *********
skipping: [localhost]

TASK [prechecks : include] *****************************************************
included: /usr/local/share/kolla-ansible/ansible/roles/prechecks/tasks/service_checks.yml for localhost

TASK [prechecks : Checking Docker version] *************************************
ok: [localhost]

TASK [prechecks : Checking empty passwords in passwords.yml. Run kolla-genpwd if this task fails] ***
ok: [localhost -> localhost]

TASK [prechecks : include] *****************************************************
included: /usr/local/share/kolla-ansible/ansible/roles/prechecks/tasks/package_checks.yml for localhost

TASK [prechecks : Checking docker-py version] **********************************
fatal: [localhost]: FAILED! => {"failed": true, "msg": "ERROR! 'ansible_python' is undefined"}

PLAY RECAP *********************************************************************
localhost : ok=9 changed=0 unreachable=0 failed=1

Command failed ansible-playbook -i /usr/local/share/kolla-ansible/ansible/inventory/all-in-one -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml -e CONFIG_DIR=/etc/kolla -e action=precheck /usr/local/share/kol...

[shaofeng cheng (shaofeng-cheng)]

Plese update ansible version >= 2.1.0.0

complete，recheck.
such as:
ansible localhost -m setup -a "filter=ansible_python"
 [WARNING]: Host file not found: /etc/ansible/hosts

localhost | SUCCESS => {
    "ansible_facts": {
        "ansible_python": {
            "executable": "/usr/bin/python2.7",
            "has_sslcontext": true,
            "type": "CPython",
            "version": {
                "major": 2,
                "micro": 12,
                "minor": 7,
                "releaselevel": "final",
                "serial": 0
            },
            "version_info": [
                2,
                7,
                12,
                "final",
                0
            ]
        }
    },
    "changed": false
}

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/455109

[OpenStack Infra (hudson-openstack)]

Change abandoned by shaofeng cheng (<email address hidden>) on branch: master
Review: https://review.openstack.org/455109
Reason: other review

[shaofeng cheng (shaofeng-cheng)]

https://review.openstack.org/#/c/452067/

[Simon Guyennet (sguyennet)]

It is working fine with ansible 2.2.2.0. The documentation should be updated.

Thanks a lot.