ConfPad

Docker has become an extremely popular tool in the tech industry. Docker containers can be found playing a hugely important role in the infrastructure of companies from the tiniest startup to the giantest of the giants. Despite it’s ubiquity, much of the inner-workings of Docker remain shrouded in mystery for developers, even for some people that work with the application regularly. And a lot of the times, the only way to figure out what’s going on is by experimenting and testing yourself. One particularly confusing aspect of Docker, and linux containers in general, is how exactly the networking inside the container works. In my talk: Notworking with a Whale: A Tale of Dockers, Networks, and Problem Solving, I will be giving a short but practical introduction to networking inside Docker and linux containers. The audience will first be introduced to the idea of network namespaces inside linux systems, and how these apply to containers and Docker. They will then be exposed to tools that can be used to interact with and troubleshoot networking issues inside a container. I will introduce these tools by sharing my own, very frustrating, experience with networking and Docker, in a problem-strategy-solution narrative. My talk will present information that will teach listeners information about linux containers, and offer some personal strategies and tools that have worked well for me.