Luca G. Soave lgs

Introduction

An introduction to curl using GitHub's API

The Basics

Makes a basic GET request to the specifed URI

curl https://api.github.com/users/caspyin

Terraform, CoreOS, and Digital Ocean

Let's use Terraform to easily get a CoreOS cluster up on Digital Ocean. In this example we will get a 5 node CoreOS cluster up and running on the Digital Ocean 8GB size.

Install Terraform

Grab a copy of Terraform for your platform from http://www.terraform.io/downloads.html. Follow the instructions at http://www.terraform.io/intro/getting-started/install.html by getting Terraform in your PATH and testing that it works.

Digital Ocean API Key

Terraform, CoreOS, and Digital Ocean

Let's use Terraform to easily get a CoreOS cluster up on Digital Ocean. In this example we will get a 5 node CoreOS cluster up and running on the Digital Ocean 8GB size.

Install Terraform

Grab a copy of Terraform for your platform from http://www.terraform.io/downloads.html. Follow the instructions at http://www.terraform.io/intro/getting-started/install.html by getting Terraform in your PATH and testing that it works.

	# SSL self signed localhost for rails start to finish, no red warnings.

	# 1) Create your private key (any password will do, we remove it below)

	$ openssl genrsa -des3 -out server.orig.key 2048


	# 2) Remove the password

	$ openssl rsa -in server.orig.key -out server.key

	#!/bin/bash

	## Updates an existing image with given script coming from stdin.
	##

	exname=$(basename $0)

	usage="$exname DOCKER_IMAGE

	Update image with stdin instruction.

	<html>
	<head>
	<script type="text/javascript" src="https://www.google.com/jsapi"></script>
	<script type="text/javascript">
	google.load("visualization", "1.1", {packages:["bar"]});
	google.setOnLoadCallback(drawChart);
	function drawChart() {
	var data = google.visualization.arrayToDataTable([
	['Year', 'Sales', 'Expenses', 'Profit'],
	['2014', 1000, 400, 200],

	#### Rails s with Pry debugger

	Started GET "/sub" for 127.0.0.1 at 2014-12-19 21:15:57 +0100
	Processing by PagesController#sub as HTML
	User Load (0.1ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT 1 [["id", 2]]
	SubscriptionPlan Load (0.1ms) SELECT "subscription_plans".* FROM "subscription_plans" WHERE "subscription_plans"."id" = ? LIMIT 1 [["id", 1]]

	From: /home/lsoave/Github/querier/app/controllers/pages_controller.rb @ line 22 PagesController#sub:

	16: def sub

	RAILS CONSOLE SESSION:

	irb(main):016:0> SubscriptionPlan.create(amount: 1000, interval: "month", stripe_id: "test-plan", name: "Test Plan")
	(0.2ms) begin transaction
	SubscriptionPlan Exists (0.3ms) SELECT 1 AS one FROM "subscription_plans" WHERE "subscription_plans"."stripe_id" = 'test-plan' LIMIT 1
	SQL (0.6ms) INSERT INTO "subscription_plans" ("amount", "interval", "stripe_id", "name", "created_at", "updated_at") VALUES (?, ?, ?, ?, ?, ?) [["amount", 1000], ["interval", "month"], ["stripe_id", "test-plan"], ["name", "Test Plan"], ["created_at", "2014-12-19 15:12:03.338728"], ["updated_at", "2014-12-19 15:12:03.338728"]]
	(146.6ms) commit transaction
	=> #<SubscriptionPlan id: 1, amount: 1000, interval: "month", stripe_id: "test-plan", name: "Test Plan", interval_count: nil, trial_period_days: nil, created_at: "2014-12-19 15:12:03", updated_at: "2014-12-19 15:12:03">
	irb(main):017:0>

	irb(main):003:0> SubscriptionPlan.first
	SubscriptionPlan Load (0.4ms) SELECT "subscription_plans".* FROM "subscription_plans" ORDER BY "subscription_plans"."id" ASC LIMIT 1
	=> nil
	irb(main):004:0> SubscriptionPlan.create(amount: 1000, interval: "month", stripe_id: "test-plan", name: "Test Plan")
	(0.2ms) begin transaction
	SubscriptionPlan Exists (0.3ms) SELECT 1 AS one FROM "subscription_plans" WHERE "subscription_plans"."stripe_id" = 'test-plan' LIMIT 1
	(0.2ms) rollback transaction
	Stripe::InvalidRequestError: (Status 400) Plan already exists.



	Netmask Netmask (binary) CIDR Notes
	_____________________________________________________________________________
	255.255.255.255 11111111.11111111.11111111.11111111 /32 Host (single addr)
	255.255.255.254 11111111.11111111.11111111.11111110 /31 Unuseable
	255.255.255.252 11111111.11111111.11111111.11111100 /30 2 useable
	255.255.255.248 11111111.11111111.11111111.11111000 /29 6 useable
	255.255.255.240 11111111.11111111.11111111.11110000 /28 14 useable
	255.255.255.224 11111111.11111111.11111111.11100000 /27 30 useable