di

README

DI-scovery service

Overview

Di is designed as an alternative to complex services for discovering hosts and/or balancing of them. The configuration is done through environment variables. Communication is through HTTP REST API.

Configs

The environment variables are used for configuration

ENV	DEFAULT	Description
DI_MODE	"cache"	Sets the session storage mode. If multiple instances of di are used, then use "redis"
DI_HTTPS	false	Switcher of HTTPS
DI_CERTFILE	""	The path to the certificate file
DI_KEYFILE	""	The path to the secret key file
DI_ADDRESS	":8080"	Listened HTTP/S address
DI_REDIS	"localhost:6379"	Address of redis server
DI_REDISDB	0	Number of redis DB

REST API

At the moment there is a fixed minimum request interval of 1 minute.

Endpoint	Method	Body	Resp. Code	Description
/node	PUT	{'name':'node_name', 'address':'10.10.10.1'}	201	Overwrites the previously sent name. Without balancing.
/node	POST	{'name':'node_name', 'address':'10.10.10.1'}	201	If the name is the same as the one already sent, then the balancing mode is applied to the addresses
/node/{name}	GET		200	Returns address of node

Build

$ git clone git@github.com:dzen-it/di.git 
$ cd di && go get ./ && go build -o bin/di 

# Run!
$ ./bin/di 

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I am happy to accept suggestions for improving the service.