Service-catalog: Consider running etcd in-process for integration tests

[arschles]

The change at https://github.com/coreos/etcd/pull/650 should allow us to run an etcd server inside the integration test process.

[MHBauer]

this should be easier now that we're after the 1.6 rebase.

[fraenkel]

Can't do it until you go to etcd 3.1.x which has the embed package.

[arschles]

Good to know - thanks @fraenkel.

Is there anything right now that provides the REST API but just stores data in-memory, for example?

[MHBauer]

Not sure about 'cannot' but probably 'should not'. If we need 3.1, what's the likelihood we get that in a kube v1.6 update vs having to wait 6 months till cube 1.7?

I suppose it is possible we could do a manual pull of 3.1 with glide, but I'm not sure I would advocate for it.

[MHBauer]

resolved by #1570