Install and configure in Installation Guide

[Hammad Sherwani]

This bug tracker is for errors with the documentation, use the following as a template and remove or add fields as you see fit. Convert [ ] into [x] to check boxes:

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

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-----------------------------------
Release: 15.0.0 on 2017-05-07 16:37
SHA: b375e19d5d1e5700cbade5aac09db01dd74bbff5
Source: https://git.openstack.org/cgit/openstack/openstack-manuals/tree/doc/install-guide/source/glance-install.rst
URL: https://docs.openstack.org/ocata/install-guide-rdo/glance-install.html

During install and configure section of "Image (glance)", if we set database password like this "hp@123", we get an error in logs, means glance cannot accept special characters like @ in password when we define connection in glance-api and glance-registery.

2017-05-08 12:36:03.200 3326 ERROR glance ValueError: invalid interpolation syntax in 'mysql+pymysql://glance:hp%40123@controller1/glance' at position 25
2017-05-08 12:36:03.200 3326 ERROR glance

When i set simple password i-e "hp123" its works fine.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/463339

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/463339
Committed: https://git.openstack.org/cgit/openstack/openstack-manuals/commit/?id=c22b4a0cb4bccc0caa85622006e2067af231e0a0
Submitter: Jenkins
Branch: master

commit c22b4a0cb4bccc0caa85622006e2067af231e0a0
Author: chenxing <[e-mail]>
Date: Mon May 8 14:15:07 2017 +0000

    [install] Add more content about SERVICE_DBPASS

    backport: ocata newton mitaka

    Change-Id: I1d6eae9c3aff8e8af9996f6414ca21dce4cb7171
    Closes-Bug: #1689242

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/ocata
Review: https://review.openstack.org/463777

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/463777
Committed: https://git.openstack.org/cgit/openstack/openstack-manuals/commit/?id=d420af9d35f5f547507f596401a5b8daf1c21924
Submitter: Jenkins
Branch: stable/ocata

commit d420af9d35f5f547507f596401a5b8daf1c21924
Author: chenxing <[e-mail]>
Date: Mon May 8 14:15:07 2017 +0000

    [install] Add more content about SERVICE_DBPASS

    backport: ocata newton mitaka

    Change-Id: I1d6eae9c3aff8e8af9996f6414ca21dce4cb7171
    Closes-Bug: #1689242
    (cherry picked from commit c22b4a0cb4bccc0caa85622006e2067af231e0a0)