This purpose of this system is to create an easy to use deployment system.
- It is designed for large organizations but should be more than suitable for individuals and hobbyists alike.
- It should be easy enough that anybody engineer can use it to deploy their own software and feel comfortable knowing that it went out correctly.
- It will be designed with lessons learned at real companies 1.
The full system will be called Metroplex.
Metroplex puts things in their place.
It'll consist of a deployment service called metroplex-web. It will be backed
by mysql and should be horizontally scalable. Think of it as a simple mysql
backed web-app.
SigmaD will be a daemon each machine. Its configuration will tell it which Metroplex API Host to contact (otherwise we'll just assume a host named 'vector') and send health status.
You can define services from the web frontend and register various services to nodes.
You may also self-register on the node using SigmaD via command line options.
Once you have services and nodes defined, you can then kick off deploys via the web console. A deploy will trigger each host that's associated with a service to kick off any pre-download scripts, download a build, extract a build, run any pre-restart scritps, restart a service, run any post-restart scripts and then signal to vector that the deploy is up to date.
This system intends to use:
- Go (golang) for the service and daemon
- MySQL (as a backend)
- Bootstrap for a CSS framework
- jQuery for JS
Outside of "Go", I'm familiar enough with the other tools that I'll be able to maintain some velocity for developing this tool. I will entertain other technology as our needs change, but strive for simplicity.
We'll write both the service and the daemon in Go. Go is a good fit for the daemon which is annoying if it crashes. Go is an ok fit for the web service, but other frameworks might suffice (Python's Bottle, Ruby Sinatra, NodeJS). At least there's no context switch.
We'll back this initially with MySQL since it's easy to operate and is present in many environments.
* Title is totally a working project title.