passing actions

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  actions: {
  	componentAction() {
    	this.get('passedAction')();
    }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  actions: {
  	controllerAction() {
      console.log('controller action');
    }
  }
});

templates.application.hbs

{{my-component passedAction=(action 'controllerAction')}}

templates.components.my-component.hbs

in component
<button onclick={{action 'componentAction'}}>click me</button>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}