Database Changes Specification for Ocata
Change-Id: Icf07b904d8e90691bfde5b4d1df50e03a6c90ca8
This commit is contained in:
parent
4ee173564f
commit
1ff0198267
|
@ -0,0 +1,141 @@
|
||||||
|
..
|
||||||
|
|
||||||
|
This work is licensed under a Creative Commons Attribution 3.0 Unported License.
|
||||||
|
http://creativecommons.org/licenses/by/3.0/legalcode
|
||||||
|
|
||||||
|
..
|
||||||
|
This template should be in ReSTructured text. The filename in the git
|
||||||
|
repository should match the launchpad URL, for example a URL of
|
||||||
|
https://blueprints.launchpad.net/kosmos/+spec/awesome-thing should be named
|
||||||
|
awesome-thing.rst . Please do not delete any of the sections in this
|
||||||
|
template. If you have nothing to say for a whole section, just write: None
|
||||||
|
For help with syntax, see http://sphinx-doc.org/rest.html
|
||||||
|
To test out your formatting, see http://www.tele3.cz/jbar/rest/rest.html
|
||||||
|
|
||||||
|
=============================
|
||||||
|
Database Changes
|
||||||
|
=============================
|
||||||
|
|
||||||
|
https://blueprints.launchpad.net/kosmos/+spec/database-changes
|
||||||
|
|
||||||
|
Many GSLB backends have specific parameters for load-balancer policies.
|
||||||
|
Instead of just being a CNAME record in a DNS server as expected with
|
||||||
|
the Neutron LBaaS + Designate solution.
|
||||||
|
|
||||||
|
Also at time there is not just one Pool associated with a load-balancer
|
||||||
|
policy, there could be more than one. Like Active and Passive for disaster
|
||||||
|
recovery. So we need to move the pool-id out of loadbalancer table and
|
||||||
|
make it a separate relational table.
|
||||||
|
|
||||||
|
Problem description
|
||||||
|
===================
|
||||||
|
|
||||||
|
There is a requirement for introduction of loadbalancer_parameters in to
|
||||||
|
the kosmos database as some GSLB backends have specific attributes associated
|
||||||
|
with a GSLB Policy. As current kosmos database schema doesn't accomodate
|
||||||
|
parameters for load_balancer, we need to add a new table named,
|
||||||
|
load_balancer_parameters for this.
|
||||||
|
|
||||||
|
We also need to take pool_id from load_balancer table as there could be
|
||||||
|
more than one pool associated with a policy. For example Active/Standy
|
||||||
|
policies would always have a standby pool that should be defined for the
|
||||||
|
policy.
|
||||||
|
|
||||||
|
domain_id in all the artifact table will be modified to accept null so
|
||||||
|
that we implement only if required.
|
||||||
|
|
||||||
|
Proposed change
|
||||||
|
===============
|
||||||
|
|
||||||
|
We need to make changes to the following:
|
||||||
|
|
||||||
|
db/tables.py
|
||||||
|
------------
|
||||||
|
|
||||||
|
Add a new table loadbalancer_parameters with the following columns:
|
||||||
|
1. loadbalancer_id [FK from loadbalancers table]
|
||||||
|
2. parameter_key [Type: String(255)]
|
||||||
|
3. prameter_value [Type: String(255)]
|
||||||
|
|
||||||
|
Remove pool_id from loadbalancers table
|
||||||
|
|
||||||
|
Add a new table loadbalancer_pools with the following columns:
|
||||||
|
1. loadbalancer_id [FK from loadbalancers table]
|
||||||
|
2. pool_id [FK from pools table]
|
||||||
|
3. loadbalancer_pool_type [Type: LB_POOL_TYPES; Default: ACTIVE]
|
||||||
|
|
||||||
|
Add LB_POOL_TYPES as an enum with the following possible values:
|
||||||
|
1. ACTIVE
|
||||||
|
2. PASSIVE
|
||||||
|
|
||||||
|
Remove domain_id from the following tables:
|
||||||
|
1. pools
|
||||||
|
2. pool_members
|
||||||
|
3. loadbalancers
|
||||||
|
4. monitors
|
||||||
|
|
||||||
|
Alter the flavour_id in the loadbalancer table from String(32) to UUID()
|
||||||
|
|
||||||
|
Alembic Versions
|
||||||
|
----------------
|
||||||
|
|
||||||
|
Generate new Version file using Alembic. Make sure it has both upgrade()
|
||||||
|
and downgrade() methods implemented.
|
||||||
|
|
||||||
|
objects/loadbalancer.py
|
||||||
|
-----------------------
|
||||||
|
|
||||||
|
Remove pool_id to be nullable=False in loadbalancer.py.
|
||||||
|
|
||||||
|
Add pools and parameters in fields section. These fields should default
|
||||||
|
and an empty array.
|
||||||
|
|
||||||
|
Change the version to 1.1.
|
||||||
|
|
||||||
|
objects/base.py
|
||||||
|
------------------
|
||||||
|
|
||||||
|
Change domain_id to be nullable=True in KosmosOwnedObject.
|
||||||
|
|
||||||
|
objects
|
||||||
|
-------
|
||||||
|
|
||||||
|
Add below py files:
|
||||||
|
|
||||||
|
1. loadbalancer_pool.py
|
||||||
|
2. loadbalancer_parameter.py
|
||||||
|
|
||||||
|
objects/__init__.py
|
||||||
|
-------------------
|
||||||
|
|
||||||
|
Add loadbalancer_pool and loadbalancer_parameters to import statements
|
||||||
|
|
||||||
|
tests/unit/objects
|
||||||
|
------------------
|
||||||
|
|
||||||
|
Update test_kosmos_object_hashes.py with the new hashes.
|
||||||
|
|
||||||
|
Add test cases for all the objects.
|
||||||
|
|
||||||
|
Update the base test case.
|
||||||
|
|
||||||
|
Implementation
|
||||||
|
==============
|
||||||
|
|
||||||
|
Assignee(s)
|
||||||
|
-----------
|
||||||
|
|
||||||
|
Primary assignee:
|
||||||
|
krevuri
|
||||||
|
|
||||||
|
Secondary assignees:
|
||||||
|
ma501v
|
||||||
|
pr8721
|
||||||
|
praveen-komakula
|
||||||
|
pradeepkumar.ks
|
||||||
|
|
||||||
|
Milestones
|
||||||
|
----------
|
||||||
|
|
||||||
|
Target Milestone for completion:
|
||||||
|
Pike
|
Loading…
Reference in New Issue