[openstack-dev] [Trove] how to list available configuration parameters for datastores

Craig Vyvial cp16net at gmail.com
Wed Jan 22 16:10:27 UTC 2014

Hey everyone I have run into an issue with the configuration parameter URI.
I'd like some input on what the URI might look like for getting the list
configuration parameters for a specific datastore.

Problem: Configuration parameters need to be selected per datastore.

Currently: Its setup to use the default(mysql) datastore and this wont work
for other datastores like redis/cassandra/etc.

/configurations/parameters - parameter list for mysql
/configurations/parameters/<parameter_name> - details of parameter

We need to be able to request the parameter list per datastore. Here are
some suggestions that outlines how each method may work.


/configurations/parameters?datastore=mysql - list parameter for mysql
/configurations/parameters?datastore=redis - list parameter for redis

- we do not use query parameters for anything other than pagination (limit
and marker)
- this requires some finagling with the context to add the datastore.


/configurations/parameters - list of datastores that have configuration
/configurations/parameters/<datastore> - list of parameters for datastore


/datastores/<datastore>/configuration/parameters - list the parameters for
the datastore


/datastores/<datastore> - add an href on the return to the configuration
parameter list for the datastore
/configurations/parameters/<datastore> - list of parameters for datastore


* Require a configuration be created with a datastore.
Then a user may list the configuration parameters allowed on that

/configurations/<config_id>/parameters - parameter list for mysql

- after some thought i think this method (5) might be the best way to
handle this.

I've outlined a few ways we could make this work. Let me know if you agree
or why you may disagree with strategy 5.

Craig Vyvial
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