Restarter

NOTE: In non-professional state at the moment, I will clean it up and add real errors, but I wanted to put this up even in its current state

Package restarter restarts a command with arguments when a restart channel is sent to.

Current there are two cli interfaces for the library.

fsrestarter

go get -u github.com/adamryman/restarter/cmd/fsrestarter
fsrestarter -h
Usage: fsrestarter [options] [arguments to pass to binary]
  -b, --binary string      filename of binary to watch for updates and restart (default "run")
  -d, --directory string   directory where binary is located (default "/target")

fsrestarter which watches a passed directory for a binary to be updated, it runs the binary and restarts the binary if it detects any change.

I built this one to be used in dev docker containers. It allows a binary to be volumed into a container, and then restarted when it is updated. This allows exposed ports to be entirely within a docker network.

An example docker-compose.yml for several services might be:

version: "2"
services:
	service-1:
		image: adamryman/fsrestarter
		expose: "5040"
		volumes:
			- $GOPATH/src/github.com/adamryman/service-1/target:/target
		command: target run
		environment:
			PORT: "5040"
			SERVICE-1-HOST: "service-2"
			SERIVCE-1-PORT: "45360"
	service-2:
		image: adamryman/fsrestarter
		expose: "45360"
		volumes:
			# By default fsrestarter watches "/target" for a binary called "run"
			- $GOPATH/src/github.com/adamryman/service-2/target:/target
		environment:
			PORT: "45360"
			SERVICE-1-HOST: "service-1"
			SERIVCE-1-PORT: "5040"
	...

Where each container will run and try to launch the binary run inside the target directory which are volumed together.

netrestarter

Also netrestarter which restarts a passed cmd every time a connection is made on localhost:5040 which I made as a test.