Ansible up and running 2nd pdf

Ansible up and running 2nd pdf

We now deploy software applications by stringing together services that run on a distributed set of computing resources and communicate over different networking protocols.

A typical application can include web servers, application servers, memory-based caching systems, task queues, message queues, SQL databases, NoSQL datastores, and load balancers. We also need to make sure we have the appropriate redundancies in place, so that when failures happen and they willour software systems will handle these failures gracefully.

Then there are the secondary services that we also need to deploy and maintain, such as logging, monitoring, and analytics, as well as third-party services we need to interact with, such as infrastructure-as-a-service IaaS endpoints for managing virtual machine instances.

And for more complex tasks, like standing up an OpenStack cloud inside your application, doing it by hand is madness. The example code in this book was tested against version 2. As backward compatibility is a major goal of the Ansible project, these examples should work unmodified in future versions of Ansible.

Ansible is often described as a configuration management tool, and is typically mentioned in the same breath as ChefPuppetand Salt. When we talk about configuration management, we are typically talking about writing some kind of state description for our servers, and then using a tool to enforce that the servers are, indeed, in that state: the right packages are installed, configuration files contain the expected values and have the expected permissions, the right services are running, and so on.

Like other configuration management tools, Ansible exposes a domain-specific language DSL that you use to describe the state of your servers.

These tools can be used for deployment as well. When people talk about deployment, they are usually referring to the process of taking software that was written in-house, generating binaries or static assets if necessarycopying the required files to the server sand then starting up the services. Capistrano and Fabric are two examples of open source deployment tools.

Ansible is a great tool for deployment as well as configuration management.

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Using a single tool for both configuration management and deployment makes life simpler for the folks responsible for operations.

Some people talk about the need for orchestration of deployment. This is where multiple remote servers are involved, and things have to happen in a specific order.

For example, you need to bring up the database before bringing up the web servers, or you need to take web servers out of the load balancer one at a time in order to upgrade them without downtime. Ansible is good at this as well, and is designed from the ground up for performing actions on multiple servers.

Ansible has a refreshingly simple model for controlling the order in which actions happen. In the context of public clouds such as Amazon EC2, this refers to spinning up a new virtual machine instance.

Confusingly, the Vagrant tool, covered later in this chapter, uses the term provisioner to refer to a tool that does the configuration management. So, Vagrant refers to Ansible as a kind of provisioner, whereas I think of Vagrant as a provisioner, since Vagrant is responsible for starting up virtual machines. She has written an Ansible script called webservers. In Ansible, a script is called a playbook.

ansible up and running 2nd pdf

A playbook describes which hosts what Ansible calls remote servers to configure, and an ordered list of tasks to perform on those hosts. In this example, the hosts are web1, web2, and web3, and the tasks are things such as these:. Stacy executes the playbook by using the ansible-playbook command. In the example, the playbook is named webservers. Ansible will make SSH connections in parallel to web1, web2, and web3. It will execute the first task on the list on all three hosts simultaneously.

In this example, the first task is installing the Nginx apt package since Ubuntu uses the apt package managerso the task in the playbook would look something like this:. Ansible will then move to the next task in the list, and go through these same four steps.

There are several open source configuration management tools out there to choose from.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Terraform: Up & Running, 2nd Edition

If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again.

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If nothing happens, download the GitHub extension for Visual Studio and try again. This repository contains code samples from Ansible: Up and Runningorganized by book chapter. Note that most chapters have a single subdirectory named playbooks. I did this so that the directory structure of the code would match the directory structure in the book, since the book always assumes a playbooks directory.

If you encounter any problems with these samples, please submit a GitHub issue or a pull request against this repository. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Python Ruby JavaScript Other. Python Branch: master. Find file. Sign in Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again.

This branch is commits ahead of lorin:master. Pull request Compare. Latest commit. Latest commit ad7abe2 Oct 16, Ansible: Up and Running 2nd edition code samples This repository contains code samples from Ansible: Up and Runningorganized by book chapter.

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You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.This document discusses the setup that is required before Ansible can communicate with a Microsoft Windows host. For Ansible to communicate to a Windows host and use Windows modules, the Windows host must meet these requirements:. While these are the base requirements for Ansible connectivity, some Ansible modules have additional requirements, such as a newer OS or PowerShell version.

Ansible requires PowerShell version 3.

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NET Framework 4. The base image does not meet this requirement. You can use the Upgrade-PowerShell. Once completed, you will need to remove auto logon and set the execution policy back to the default of Restricted.

You can do this with the following PowerShell commands:. The script works by checking to see what programs need to be installed such as. If a reboot is required and the username and password parameters are set, the script will automatically reboot and logon when it comes back up from the reboot. The script will continue until no more actions are required and the PowerShell version matches the target version.

If the username and password parameters are not set, the script will prompt the user to manually reboot and logon when required. When the user is next logged in, the script will continue where it left off and the process continues until no more actions are required. If running on Serverthen SP2 must be installed. Windows Server can only install PowerShell 3.

The username and password parameters are stored in plain text in the registry. Make sure the cleanup commands are run after the script finishes to ensure no credentials are still stored on the host. When running on PowerShell v3. Without this hotfix installed, Ansible will fail to execute certain commands on the Windows host. These hotfixes should installed as part of the system bootstrapping or imaging process.

For more details, please refer to the Hotfix document from Microsoft. Once Powershell has been upgraded to at least version 3. There are two main components of the WinRM service that governs how Ansible can interface with the Windows host: the listener and the service configuration settings. Details about each component can be read below, but the script ConfigureRemotingForAnsible. The documentation for these options are located at the top of the script itself. The ConfigureRemotingForAnsible. The WinRM services listens for requests on one or more ports.

Each of these ports must have a listener created and configured.Leverage Ansible 2 to automate complex security tasks like application security, network security, and malware analysis. Master the art of deploying, configuring, managing, and troubleshooting Ubuntu Server Search for:. Manage Windows machines, and automate network device configuration Manage your fleet from your web browser with Ansible Tower Understand how Ansible differs from other configuration management systems Use the YAML file format to write your own playbooks Work with a complete example to deploy a non-trivial application Deploy applications to Amazon EC2 and other cloud platforms Create Docker images and deploy Docker containers with Ansible This book is best read start to finish, with later chapters building on earlier ones.

ansible up and running 2nd pdf

Most examples focus on web applications. Release Today, determining how much capacity you need for handling traffic surges is still a common frustration of operations engineers and software developers.

This hands-on guide provides the knowledge and tools you need to measure, deploy, and manage your web application infrastructure before you experience explosive growth. In this thoroughly updated edition, authors Arun Kejariwal MZ and John Allspaw provide a systematic, robust, and practical approach to capacity planning—rather than theoretical models—based on their own experiences and those of many colleagues in the industry.

They address the vast sea change in web operations, especially cloud computing. It's also useful for security consultants looking to automate their infrastructure's security model.

What You Will Learn Use Ansible playbooks, roles, modules, and templating to build generic, testable playbooks Manage Linux and Windows hosts remotely in a repeatable and predictable manner See how to perform security patch management, and security hardening with scheduling and automation Set up AWS Lambda for a serverless automated defense Run continuous security scans against your hosts and automatically fix and harden the gaps Extend Ansible to write your custom modules and use them as part of your already existing security automation programs Perform automation security audit checks for applications using Ansible Manage secrets in Ansible using Ansible Vault In Detail Security automation is one of the most interesting skills to have nowadays.

Ansible allows you to write automation procedures once and use them across your entire infrastructure. This book will teach you the best way to use Ansible for seemingly complex tasks by using the various building blocks available and creating solutions that are easy to teach others, store for later, perform version control on, and repeat.

We'll start by covering various popular modules and writing simple playbooks to showcase those modules. Once the bare bones automation is in place, you'll learn how to leverage tools such as Ansible Tower or even Jenkins to create scheduled repeatable processes around security patching, security hardening, compliance reports, monitoring of systems, and so on.

Moving on, you'll delve into useful security automation techniques and approaches, and learn how to extend Ansible for enhanced security. While on the way, we will tackle topics like how to manage secrets, how to manage all the playbooks that we will create and how to enable collaboration using Ansible Galaxy.

In the final stretch, we'll tackle how to extend the modules of Ansible for our use, and do all the previous tasks in a programmatic manner to get even more powerful automation frameworks and rigs.

Style and approach This comprehensive guide will teach you to manage Linux and Windows hosts remotely in a repeatable and predictable manner. The book takes an in-depth approach and helps you understand how to set up complicated stacks of software with codified and easy-to-share best practices.

No prior knowledge of DevOps tools is required. What You Will Learn Manage, use, and work with code in the Git version management system Manage the life cycle of hosts, from creation to on-going management, using Puppet Razor Create hosts automatically using a simple combination of TFTP, DHCP, and pre-seeds Implement virtual hosts using the ubiquitous VMware ESXi hypervisor Control configuration using the powerful and popular Ansible configuration management system Develop powerful, consistent, and portable containers using Docker Track trends, discover data, and monitor key systems using InfluxDB, syslog, and Sensu Deal efficiently with powerful cloud infrastructures using the Amazon AWS Infrastructure as a Service and the Heroku Platform as a Service In Detail There has been a recent explosion in tools that allow you to redefine the delivery of infrastructure and applications, using a combination of automation and testing to deliver continuous deployment.

DevOps has garnered interest from every quarter, and is rapidly being recognized as a radical shift, as large as the Agile movement for the delivery of software. This book takes a collection of some of the coolest software available today and shows you how to use it to create impressive changes to the way you deliver applications and software. It tackles the plethora of tools that are now available to enable organizations to take advantage of the automation, monitoring, and configuration management techniques that define a DevOps-driven infrastructure.

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Starting off with the fundamental command-line tools that every DevOps enthusiast must know, this book will guide you through the implementation of the Ansible tool to help you facilitate automation and perform diverse tasks. You will explore how to build hosts automatically with the creation of Apt mirrors and interactive pre-seeds, which are of the utmost importance for Ubuntu automation. You will also delve into the concept of virtualization and creating and manipulating guests with ESXi.

Following this, you will venture into the application of Docker; learn how to install, run, network, and restore Docker containers; and also learn how to build containers in Jenkins and deploy apps using a combination of Ansible, Docker, and Jenkins.

You will also discover how to filter data with Grafana and the usage of InfluxDB along with unconventional log management. Finally, you will get acquainted with cloud infrastructure, employing the Heroku and Amazon AWS platforms. By tackling real-world issues, this book will guide you through a huge variety of tools, giving new users the ability to get up and running and offering advanced users some interesting recipes that may help with existing issues.

Style and approach This book has an easy-to-follow approach to both introducing the wide range of available DevOps tools and working with them.In latewe released the Comprehensive Guide to Terraform blog post series.

It got so much attention the series is now approaching 2 million views! Today, I have two exciting announcements to share:. Before Terraform 0. Terraform 0.

The type system in earlier versions of Terraform had a number of limitations:. Here are the same variables defined with Terraform 0. Error messages in older versions of Terraform were often confusing, misleading, or downright missing. Unfortunately, older versions of Terraform would swallow that error completely:. Not only do you get a clear error message, you even get to see the relevant snippet of code that caused the problem!

The handling of just about all types of errors e. Terraform is a declarative language, so imperative logic such as for-loops have always been tricky. In older versions of Terraform, your only option was to use the count meta-parameter:. By setting count to 3the code above will create 3 EC2 Instances when you run applysimilar to a for-loop.

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Unfortunately, this approach to loops and conditionals had a number of major limitations in older versions of Terraform. For example, one major limitation of count was that it did not allow you to reference any data sources or resources:. This is a perfectly reasonable thing to do, but in older versions of Terraform, referencing any resource or data source in count would lead to an error:.

Another major count limitation was that the count meta parameter can only be used on entire resources and data sources, but not on the contents of those resources. Each tag must be specified as an inline block. In previous versions of Terraform, there was no way to take in a list of tags from a user and loop over them to create the tag inline blocks dynamically. In newer versions of Terraform, the count parameter can reference data sources, so the exact same code works just fine:.

Terraform allows you to use ternary syntax for conditionals:. Older versions of Terraform had two major limitations with conditionals. The first limitation was that conditionals were not short-circuitingwhich means that both clauses of the conditional would be evaluated, no matter what the boolean value was:.

The code above would fail, as var. The second limitation was that conditionals only worked with primitive values like strings and numbers, but not lists or maps:. Both of these problems have been fixed in Terraform 0. Conditionals are now short-circuiting and work with any arbitrary type.

The first limitation was that there was no way to define your remote state settings as code. Instead, every developer on your team had to remember to run a complicated remote config command before they could run terraform apply :.

The second limitation was that there was no support for locking of state files. So if two developers ran terraform apply at the same time, you ran the risk of their changes conflicting or overwriting each other. Newer versions of Terraform introduced remote state backendswhich allow you to define your remote state configuration as part of your Terraform code:. Moreover, most remote state backends now support locking.

Manage Windows like Linux with Ansible

For example, the S3 backend supports locking using DynamoDB:.Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy. See our Privacy Policy and User Agreement for details. Submit Search. Goodreads helps you keep track of books you want to read.

Want to Read saving…. Want to Read Currently Reading Read. Other editions. Enlarge cover. Error rating book. Synopsis book Among the many configuration management tools available, Ansible has some distinct advantages--it's minimal in nature, you don't need to install anything on your nodes, and it has an easy learning curve. With this updated second edition, you'll learn how to be productive with this tool quickly, whether you're a developer deploying code to production or a system administrator looking for a better automation solution.

Authors Lorin Hochstein and Rene Moser show you how to write playbooks Ansible's configuration management scriptsmanage remote servers, and explore the tool's real power: built-in declarative modules. You'll discover that Ansible has the functionality you need--and the simplicity you desire. Manage Windows machines, and automate network device configurationManage your fleet from your web browser with Ansible TowerUnderstand how Ansible differs from other configuration management systemsUse the YAML file format to write your own playbooksWork with a complete example to.

Simply Sign Up to one of our plans and start browsing. Your email address will not be published. Leverage powerful automation across entire IT teams no matter where you are in your automation journey. Get best practices and expert tips to help you end repetitive tasks and free up DevOps teams for more strategic work.

Ansible: Up and Running, 2nd Edition by Lorin Hochstein, Rene Moser

Resource Type E-books. We're excited to announce that Red Hat Ansible Tower 3. In this release, there are several enhancements that can help improve automation practices. File Name: ansible up and running 2nd pdf. Walt disney cinderella book online. Form space and order book. Stanford university books and supplies cost.

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ansible up and running 2nd pdf

What is a gothic novel.This book is best read start to finish, with later chapters building on earlier ones. Most examples focus on web applications. This site comply with DMCA digital copyright. We do not store files not owned by us, or without the permission of the owner. We also do not have links that lead to sites DMCA copyright infringement. If You feel that this book is belong to you and you want to unpublish it, Please Contact us.

Ansible: Up and Running 2nd Edition. Download e-Book. Posted on. Page Count.

Automating your infrastructure should be quick and easy

Lorin Hochstein, Rene Moser. Manage Windows machines, and automate network device configuration Manage your fleet from your web browser with Ansible Tower Understand how Ansible differs from other configuration management systems Use the YAML file format to write your own playbooks Work with a complete example to deploy a non-trivial application Deploy applications to Amazon EC2 and other cloud platforms Create Docker images and deploy Docker containers with Ansible This book is best read start to finish, with later chapters building on earlier ones.

ansible up and running 2nd pdf

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