proposal for managing services

[bcaldwell]

requirements:

• should be configurable by using one work, ie redis
• should expose a dns record that connects to the correct container:port
• should not require anything other than docker to run
• hopefully only require 1 container

  Idea:

• have an ngninx container that proxies the each dns record to the correct container
• write a small daemon that runs in the same container as nginx and manages its configuration based on docker events

on devctl up

• docker run --label devctl=dns.resolve.name --label project=projectname --name something image
• daemon listens for start event, updates local hash and updates nginx config from local hash
  • daemon updates hash based devctl label value and docker inspect internal ip address
• daemon also listens for stop event, updates local hash and updates nginx config from local hash
• something to think about:
  • how do we expose the correct ports externally?
  • we could have get nginx to expose the correct ports.
  • does it make sense to give this docker container its own ip address? and then exposing all the ports that could potentially be used?
  • best solution might be to have a dedicated devctl port and the open the required ports if they arent in use (ie the mysql port if mysql is requested). In addition to this having all port be able to resolve all requests would be useful. The recommended setup would be to have your rails app or whatever connect to mysql.railsproject.dev:devctl_port

@karanthukral

[karanthukral]

The idea seems good to me. I don't really have a better one

[bcaldwell]

The only annoying thing with this is youd have to use mysql.project.devctl:devctl port as the url instead of just mysql.project.devctl. Also if someone takes our devctl port we are screwed

[karanthukral]

What if we use minikube?

[bcaldwell]

minikube requires VirtualBox to run last I checked. I would prefer not to have that as a dependency.

[karanthukral]

It runs on xhyve on mac os

[karanthukral]

we are already adding docker as a dependency so minikube is not that much different IMO. I am just being a devils advocate here

[bcaldwell]

Does it have something that runs on linux as well? I would like to support both.

Does kubernetese/ minikube hande dsn resolving? The nice thing about minikube is that it would have its own ip...

[bcaldwell]

I'm not opposed to trying both. Minikube would be easier so we can doing it with that first

[karanthukral]

I think we will have to chat about this in person but it does sound interesting :)

[bcaldwell]

ya sounds good. Let me know when you have some free time. I'll work on adding more services in the meantime (PS. I renamed languages to services)

[karanthukral]

solid naming convention