Ask HN: What's the best overview / introduction to modern DevOps?

In my current project as a contractor, I am getting really close to operations. Hence, the only tasks I do lately is DevOps related.

The more I read, the more questions arise. We are hosting Docker Containers via Docker Cloud, but now have problems with load balancing/service discovery of node clusters.

I came across several topics, and now I am looking for a book/video/article/etc. for a broad vision.

It should cover: - Container - Orchestration (and tools) - Metrics - Hosting provider - Chef, Puppet and those "tools"

Any ideas/links/help?