mach-composer-plugin-sdk

SDK to create plugins for Mach Composer

Writing plugins

Mach Composer utiltizes the go-plugin package for implementing plugins. This means that mach-composer runs each plugin in a separate process whereby communication between mach-composer and the plugin happens via net/rpc.

Mach Composer automatically finds plugins defined in the config file by looking for an executable named mach-composer-plugin-<name>.

A plugin exists out of three major parts:

1. Setup functionality
2. Processing settings (global, site or component)
3. Rendering of terraform snippets

Example

Below is a very minimal implementation of a plugin.

import (
	"github.com/mach-composer/mach-composer-plugin-sdk/plugin"
	"github.com/mach-composer/mach-composer-plugin-sdk/schema"
)


func MyPlugin() schema.MachComposerPlugin {
	return plugin.NewPlugin(&schema.PluginSchema{
		Identifier: "<name of plugin>",
	})
}

func main() {
	p := MyPlugin()
	plugin.ServePlugin(p)
}