Memcached for SUSE in Installation Guide

[Buddhika Sanjeewa]

- [X] This doc is inaccurate in this way: Wrong instructions
- [ ] This is a doc addition request.
- [ ] I have a fix to the document that I can paste below including example: input and output.

OS: SLES 12 SP3
Openstack: Pike

In memcached installation Horizon fails to login with the given instructions.

===============
Edit the /etc/sysconfig/memcached file and complete the following actions:

Configure the service to use the management IP address of the controller node. This is to enable access by other nodes via the management network:

      MEMCACHED_PARAMS="-l 127.0.0.1"

================
The IP should be the Management Node IP, not localhost IP. So the line should be,

      MEMCACHED_PARAMS="-l MANAGEMENT_INTERFACE_IP_ADDRESS"

-----------------------------------
Release: on 2018-01-09 21:23
SHA: f937e6cd146be5b3e2ff1b07de4c2f7171d23b98
Source: https://git.openstack.org/cgit/openstack/openstack-manuals/tree/doc/source/environment-memcached-obs.rst
URL: https://docs.openstack.org/install-guide/environment-memcached-obs.html

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/533238
Committed: https://git.openstack.org/cgit/openstack/openstack-manuals/commit/?id=b0092b48939d242b807cebc882f924cb02f2b5a1
Submitter: Zuul
Branch: master

commit b0092b48939d242b807cebc882f924cb02f2b5a1
Author: Nicolas Bock <email address hidden>
Date: Fri Jan 12 09:38:27 2018 -0700

    Update install instructions for memcached

    The OBS install instructions for memcached incorrectly instructed the
    user to configure memcached to listeon on the localhost address. It
    should be configured to use the management IP address of the
    controller.

    Change-Id: Ia978c025232a80e46cbb12e2ea5fad63c6ad2167
    Closes-Bug: #1742884