Add ability to map broker response into specific keys of k8s secret

[pmorie]

I have heard from several users (and actively desired personally) to be able to map pieces of the broker response into different fields. For example, if I have an application template that depends on $DB_URL, it would be great to map db.url into DB_URL in the k8s secret created by the catalog, or map DATABASE_URL into that field. We do not want to create templating with this feature, but it should be possible to do simple remapping of keys in the credentials portion of the response into secret keys.

Related: openservicebrokerapi/servicebroker#116

[pmorie]

cc @luksa

[pmorie]

I binned this as 0.2.0 so it was clear that it is not for 0.1.0

[carolynvs]

#dibbs

We do not want to create templating with this feature

Since I am working on templating (outside of svc-cat), I'd like to work on this. 😀

[pmorie]

@luksa has already started working on this, so you two should sync @carolynvs

[carolynvs]

@luksa @pmorie Can this be closed now that #1868 is in, or is there more left to do?

[pmorie]

@carolynvs yep, this can be closed now. Thanks a lot, @luksa!

[carolynvs]

Closed by #1868