Kolla-ansible missing jmespath in requirements.txt

[Mark Goddard]

The neutron rolling upgrade procedure now uses the json_query Jinja filter, which requires the jmespath python package.

The symptom of failure is:

TASK [neutron : Stopping all neutron-server for contract db] *******************
fatal: [controller0]: FAILED! => {"msg": "The conditional check 'is_stop_neutron_server|length > 0' failed. The error was: An unhandled exception occurred while templating '{{ results_of_check_pending_contract_scripts | json_query(filter_rc) }}'. Error was a <class 'ansible.errors.AnsibleError'>, original message: You need to install \"jmespath\" prior to running json_query filter\n\nThe error appears to have been in '/home/zuul/kolla-venv/share/kolla-ansible/ansible/roles/neutron/tasks/rolling_upgrade.yml': line 50, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- name: Stopping all neutron-server for contract db\n ^ here\n"}

As seen in kayobe CI: http://logs.openstack.org/96/615596/9/check/kayobe-overcloud-upgrade-centos/f5bf83b/primary/ansible/overcloud-upgrade

[Mark Goddard (mgoddard)]

Only affects master.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/619006

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/619006
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=d0122fff6988248985ca11250421f59318106e3e
Submitter: Zuul
Branch: master

commit d0122fff6988248985ca11250421f59318106e3e
Author: Mark Goddard <email address hidden>
Date: Tue Nov 20 14:21:18 2018 +0000

    Add jmespath to requirements.txt

    jmespath is required for the json_query Jinja filter, which is used in
    the neutron rolling upgrade playbooks.

    Change-Id: I2100d757e07d8400402a8a16747e0f88ef7fc7c5
    Closes-Bug: #1804242

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/rocky
Review: https://review.openstack.org/621393

[OpenStack Infra (hudson-openstack)]

Change abandoned by Eduardo Gonzalez (<email address hidden>) on branch: stable/rocky
Review: https://review.openstack.org/621393

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 8.0.0.0b1 development milestone.