openstack
/
sahara
Code Issues Proposed changes

Updating DOC on floating IPs change 

Changing documentation on how floating IPs work from Newton on.

Change-Id: Ic2a30232c1895873b3d5b3719de5761b36a9fab2
Implements-bp: refactor-use-floating-ip
This commit is contained in:
Telles Nobrega 2016-08-29 16:03:56 -03:00
parent 0ebc6df2be
commit abaf51348e
2 changed files with 12 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
.gitignore vendored
View File

@ -6,6 +6,7 @@
.testrepository
.tox
.venv
.idea
AUTHORS
ChangeLog
build

19
doc/source/userdoc/configuration.guide.rst
View File

@ -105,8 +105,8 @@ shell(SSH). To establish this connection it may use either the fixed
or floating IP address of an instance. By default sahara is configured
to use floating IP addresses for access. This is controlled by the
``use_floating_ips`` configuration parameter. With this setup the user
has two options for ensuring that all instances gain a floating IP
address:
has two options for ensuring that the instances in the node groups
templates that requires floating IPs gain a floating IP address:
* If using the nova-network, it may be configured to assign floating
IP addresses automatically by setting the ``auto_assign_floating_ip``
@ -114,13 +114,16 @@ address:
(usually ``nova.conf``).
* The user may specify a floating IP address pool for each node
group directly.
group that requires floating IPs directly.
.. warning::
When using floating IP addresses for management
(``use_floating_ips=True``) **every** instance in the cluster must have
a floating IP address, otherwise sahara will not be able to utilize
that cluster.
From Newton changes were made to allow the coexistence of clusters using
floating IPs and clusters using fixed IPs. If ``use_floating_ips`` is
True it means that the floating IPs can be used by Sahara to spawn clusters.
But, differently from previous versions, this does not mean that all
instances in the cluster must have floating IPs and that all clusters
must use floating IPs. It is possible in a single Sahara deploy to have
clusters setup using fixed IPs, clusters using floating IPs and cluster that
use both.
If not using floating IP addresses (``use_floating_ips=False``) sahara
will use fixed IP addresses for instance management. When using neutron