shanesveller
New Series: Kubernetes-Native Phoenix Apps
Introduction and first content post in my new series about running Elixir Phoenix apps on Kubernetes are live! I’m describing an opinionated and focused approach that assumes you are already comfortable with Elixir/Phoenix and with Kubernetes primitives, but not necessarily experienced with marrying the two. I can definitely point people to more resources for the latter as need be, but won’t include them in the posts, except as links.
Feedback and questions are very welcome on basically any medium, but you can reach me on Slack, Twitter, GitHub or here on the forum as @shanesveller.
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First 5 of 5 Posts!
shanesveller
The second content post of my series, covering Docker-Compose and Docker-friendly migrations, seeds and Distillery config providers is live! Our first taste of Kubernetes in Part 3 should follow sometime this week.
maz
Pretty comprehensive and ambitious posts! I noticed that the ‘kube_native’ app has access to the ecto repo while the ‘kube_native_web’ app does not. I’ve never done an umbrella app before so my question is is this the usual way to configure db access in an umbrella app? Just wondering what you would do if you needed the ‘kube_native_web’ app to use the db/repo?
shanesveller
Thank you!
Yes, and as a matter of fact this is how
mix phx.new --umbrellawill construct your application for you. The super-brief explanation is that you want to have only one umbrella application directly responsible for your Ecto interactions with a given Repo. You have that umbrella app provide an abstraction layer used by your other applications within the umbrella, and they depend on that first one in theirmix.exs. This is mostly just a slight variation on Phoenix Contexts which were introduced in Phoenix 1.3 - the umbrella structure just sort of forces your hand a little bit in terms of providing good isolation/boundaries.shanesveller
The first post that actually touches Kubernetes (and a little bit of Helm is available today in Part 3 of my series, and it’s a dense one! Looking forward to feedback and comments, as always!
stefanluptak
Those 3 parts were really well written and informative. I am looking forward to the next one.
