Support for Auth

[jameslamb]

Today, uptasticsearch only works when you have the ability to directly query the cluster. If your cluster has some authentication / authorization set up on it (e.g. Shield), this library will not work.

I think we need to add support for auth-enabled 5.x and 6.x clusters. As of 5.x, you can use X-pack to enable security features for Elasticsearch.

I do NOT think we should put any time or effort into supporting Shield on earlier versions of ES, but open to discussion if some users say they have a need for it.

[jameslamb]

@austin3dickey @ngparas I actually tried this today, but AFAICT you can't use x-pack security in the free images.

Other links I found in case someone figures out how to do this:

• Getting Started With Security
• Installing X-Pack
• how ropensci/elastic is handling auth
• basic auth with Elastic clients

[austin3dickey]

So the implications are that we wouldn't be able to test in Travis? And local development could be tricky

[jameslamb]

Technically we wouldn't be able to test on Travis for free. We could used hosted ES from AWS and keep an instance up and running, which would probably be like 4 bucks a month. I don't love the idea of taking on that complexity though.

[jameslamb]

Especially when no one has asked for this