DEFAULT_FORKS is the wrong Ansible variable name to define the forks number

[Francesco Pantano]

According to [1] the correct name of the environment variable used to override the
ansible forks integer is ANSIBLE_FORKS.
The workbook [2] is not using the right default, so we can't take advantage of this
setting.

[1] https://docs.ansible.com/ansible/2.6/reference_appendices/config.html#default-forks
[2] https://github.com/openstack/tripleo-common/blob/stable/queens/workbooks/ceph-ansible.yaml#L22

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/rocky
Review: https://review.opendev.org/716020

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/queens
Review: https://review.opendev.org/716022

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/716022
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=80fb3ccab736500a0d385338681f2cf10654877e
Submitter: Zuul
Branch: stable/queens

commit 80fb3ccab736500a0d385338681f2cf10654877e
Author: Francesco Pantano <email address hidden>
Date: Mon Mar 30 18:44:39 2020 +0200

    Fix ANSIBLE_FORKS env variable in ceph-ansible workbook

    The right variable to properly set the ansible forks used when
    ceph-ansible is triggered is ANSIBLE_FORKS.
    This patch just fixes the variable name.

    Change-Id: I29c525c13759d1b244b4396ab31f9a92a06cf0f1
    Closes-Bug: #1869764

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/716020
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=00f2a0e7edbe199f968577a536251a3907b3b6dc
Submitter: Zuul
Branch: stable/rocky

commit 00f2a0e7edbe199f968577a536251a3907b3b6dc
Author: Francesco Pantano <email address hidden>
Date: Mon Mar 30 18:44:39 2020 +0200

    Fix ANSIBLE_FORKS env variable in ceph-ansible workbook

    The right variable to properly set the ansible forks used when
    ceph-ansible is triggered is ANSIBLE_FORKS.
    This patch just fixes the variable name.

    Change-Id: I29c525c13759d1b244b4396ab31f9a92a06cf0f1
    Closes-Bug: #1869764

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-common rocky-eol release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-common queens-eol release.