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Infrastructure as Code Cookbook

Infrastructure as Code Cookbook

By : Stephane Jourdan, Pierre Pomès
4 (1)
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Infrastructure as Code Cookbook

Infrastructure as Code Cookbook

4 (1)
By: Stephane Jourdan, Pierre Pomès
Buy this Book

Overview of this book

Para 1: Infrastructure as code is transforming the way we solve infrastructural challenges. This book will show you how to make managing servers in the cloud faster, easier and more effective than ever before. With over 90 practical recipes for success, make the very most out of IAC.
Table of Contents (12 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Sections
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
1. Vagrant Development Environments
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1. Vagrant Development Environments
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Introduction
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Adding an Ubuntu Xenial (16.04 LTS) Vagrant box
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Using a disposable Ubuntu Xenial (16.04) in seconds
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Enabling VirtualBox Guest Additions in Vagrant
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Using a disposable CentOS 7.x with VMware in seconds
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Extending the VMware VM capabilities
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Enabling multiprovider Vagrant environments
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Customizing a Vagrant VM
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Using Docker with Vagrant
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Using Docker in Vagrant for a Ghost blog behind NGINX
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Using Vagrant remotely with AWS EC2 and Docker
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Simulating dynamic multiple host networking
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Simulating a networked three-tier architecture app with Vagrant
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Showing your work on the LAN while working with Laravel
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Sharing access to your Vagrant environment with the world
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Simulating Chef upgrades using Vagrant
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Using Ansible with Vagrant to create a Docker host
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Using Docker containers on CoreOS with Vagrant
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2. Provisioning IaaS with Terraform
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2. Provisioning IaaS with Terraform
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Introduction
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Configuring the Terraform AWS provider
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Creating and using an SSH key pair to use on AWS
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Using AWS security groups with Terraform
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Creating an Ubuntu EC2 instance with Terraform
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Generating meaningful outputs with Terraform
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Using contextual defaults with Terraform
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Managing S3 storage with Terraform
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Creating private Docker repositories with Terraform
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Creating a PostgreSQL RDS database with Terraform
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Enabling CloudWatch Logs for Docker with Terraform
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Managing IAM users with Terraform
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3. Going Further with Terraform
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3. Going Further with Terraform
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Introduction
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Handling different environments with Terraform
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Provisioning a CentOS 7 EC2 instance with Chef using Terraform
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Using data sources, templates, and local execution
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Executing remote commands at bootstrap using Terraform
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Using Docker with Terraform
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Simulating infrastructure changes using Terraform
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Teamwork – sharing Terraform infrastructure state
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Maintaining a clean and standardized Terraform code
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One Makefile to rule them all
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Team workflow example
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Managing GitHub with Terraform
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External monitoring integration with StatusCake
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4. Automating Complete Infrastructures with Terraform
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4. Automating Complete Infrastructures with Terraform
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Introduction
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Provisioning a complete CoreOS infrastructure on Digital Ocean with Terraform
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Provisioning a three-tier infrastructure on Google Compute Engine
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Provisioning a GitLab CE + CI runners on OpenStack
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Managing Heroku apps and add-ons using Terraform
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Creating a scalable Docker Swarm cluster on bare metal with Packet
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5. Provisioning the Last Mile with Cloud-Init
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5. Provisioning the Last Mile with Cloud-Init
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Introduction
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Using cloud-init on AWS, Digital Ocean, or OpenStack
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Handling files using cloud-init
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Configuring the server's time zone using cloud-init
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Managing users, keys, and credentials using cloud-init
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Managing repositories and packages using cloud-init
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Running commands during boot using cloud-init
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Configuring CoreOS using cloud-init
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Deploying Chef Client from start to finish using cloud-init
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Deploying a remote Docker server using cloud-init
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6. Fundamentals of Managing Servers with Chef and Puppet
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6. Fundamentals of Managing Servers with Chef and Puppet
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Introduction
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Getting started (notions and tools)
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Installing the Chef Development kit and Puppet Collections
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Creating a free hosted server Chef account and a Puppet server
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Automatically bootstrapping a Chef client and a Puppet agent
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Installing packages
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Managing services
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Managing files, directories, and templates
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Handling dependencies
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More dynamic code using notifications
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Centrally sharing data using a Chef data bag and Hiera with Puppet
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Creating functional roles
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Managing external Chef cookbooks and Puppet modules
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7. Testing and Writing Better Infrastructure Code with Chef and Puppet
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7. Testing and Writing Better Infrastructure Code with Chef and Puppet
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Introduction
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Linting Chef code with Foodcritic and Puppet code with puppet-lint
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Unit testing with ChefSpec and rspec-puppet
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Testing infrastructure with Test Kitchen for Chef and Beaker for Puppet
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Integration testing with ServerSpec
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8. Maintaining Systems Using Chef and Puppet
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8. Maintaining Systems Using Chef and Puppet
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Introduction
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Maintaining consistent systems using scheduled convergence
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Creating environments
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Using Chef encrypted data bags and Hiera-eyaml with Puppet
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Using Chef Vault encryption
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Accessing and manipulating system information with Ohai
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Automating application deployment (a WordPress example)
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Using a TDD workflow
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Planning for the worse – train to rebuild working systems
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9. Working with Docker
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9. Working with Docker
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Introduction
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Docker usage overview
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Choosing the right Docker base image
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Optimizing the Docker image size
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Versioning Docker images with tags
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Deploying a Ruby-on-Rails web application in Docker
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Building and using Golang applications with Docker
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Networking with Docker
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Creating more dynamic containers
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Auto-configuring dynamic containers
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Better security with unprivileged users
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Orchestrating with Docker Compose
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Linting a Dockerfile
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Deploying a private Docker registry with S3 storage
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10. Maintaining Docker Containers
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10. Maintaining Docker Containers
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Introduction
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Testing Docker containers with BATS
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Test-Driven Development (TDD) with Docker and ServerSpec
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The workflow for creating automated Docker builds from Git
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The workflow for connecting the Continuous Integration (CI) system
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Scanning for vulnerabilities with Quay.io and Docker Cloud
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Sending Docker logs to AWS CloudWatch logs
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Monitoring and getting information out of Docker
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Debugging containers using sysdig
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Index
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Index

Creating and using an SSH key pair to use on AWS

Now we have our AWS provider configured in Terraform, let's add a SSH key pair to use on a default account of the virtual machines we intend to launch soon.

Getting ready

To step through this recipe, you will need the following:

  • A working Terraform installation
  • An AWS provider configured in Terraform
  • Generate a pair of SSH keys somewhere you remember, for example, in the keys folder at the root of your repo:
    $ mkdir keys
$ ssh-keygen -q -f keys/aws_terraform -C aws_terraform_ssh_key -N ''
  • An Internet connection

How to do it…

The resource we want for this is named aws_key_pair. Let's use it inside a keys.tf file, and paste the public key content:

resource "aws_key_pair" "admin_key" {
  key_name   = "admin_key"
  public_key = "ssh-rsa AAAAB3[…]"
}

This will simply upload your public key to your AWS account under the name admin_key:

$ terraform apply
aws_key_pair.admin_key: Creating...

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