Read e-book online Ansible Configuration Management PDF
By Daniel Hall
Leverage the ability of Ansible to regulate your infrastructure efficiently
About This Book
- Configure Ansible in your Linux and home windows machines effectively
- Extend Ansible so as to add positive factors resembling looping, conditional executions, and job delegations
- Explore the features of Ansible from easy to extra complicated themes with the aid of this step by step guide
Who This publication Is For
This e-book is meant for a person who desires to examine Ansible ranging from the fundamentals. a few event of ways to establish and configure Linux machines and a operating wisdom of BIND, MySQL, and different Linux daemons is expected.
What you'll Learn
- Manage your home windows machines with Ansible
- Use Ansible's command-line instruments to interrogate systems
- Interact with modules and installation cloud infrastructures
- Process facts inside of Ansible and expand the performance of Ansible
- Learn the best way to shop secrets and techniques in Ansible's vault and become aware of different resource code administration techniques
- Build maintainable configurations for big environments
- Write customized Ansible plugins efficiently
- Extend the performance of Ansible by way of writing your individual modules
Ansible is an open resource software program platform for configuring and handling desktops. It presents a transparent and concise solution to deal with the configuration of your Linux infrastructure. This booklet is a step by step consultant that offers you with the information you require to successfully deal with your platforms in an easy, fast, and maintainable manner, with real-world examples.
You will commence via studying the fundamentals of Ansible after which flow directly to exploring extra complex issues. you'll then study the elemental and complicated operations of playbooks and engage with modules to regulate home windows machines and install them. additionally, you will get accustomed to Ansible's extra complex beneficial properties similar to serially updating machines, delegating projects to different machines, complex makes use of of variables, looping and stipulations, copying complete directories, and utilizing filters to strategy variables. in the direction of the top of the publication, you are going to the right way to elevate the performance of Ansible itself via writing your personal modules and plugins.
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Leverage the facility of Ansible to regulate your infrastructure successfully approximately This BookConfigure Ansible in your Linux and home windows machines effectivelyExtend Ansible so as to add beneficial properties comparable to looping, conditional executions, and job delegationsExplore the services of Ansible from uncomplicated to extra complicated themes with assistance from this step by step guideWho This e-book Is ForThis e-book is meant for someone who desires to study Ansible ranging from the fundamentals.
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Extra info for Ansible Configuration Management
To trigger a handler, add a notify key to the task with the value set to the name of the task. [ 22 ] Chapter 2 Handlers are run if previously triggered when Ansible has finished running the task list. They are run in the order that they are listed in the handlers section, and even if they are called multiple times in the task section, they will run only once. This is often used to restart daemons after they have been upgraded and configured. The following play demonstrates how we will upgrade an ISC DHCP (Dynamic Host Configuration Protocol) server to the latest version, configure it, and set it to start at boot.
Modules that are windows only are named beginning with win_. There are also a few modules available, which work on both Windows and Unix systems such as the slurp module, which we covered earlier. [ 36 ] Chapter 2 Extra care should be taken in Windows modules to quote the path strings. Backslashes are an important character in both YAML, where they escape characters and in windows paths, where they denote directories. Because of this, YAML might confuse parts of our paths for escape sequences. To prevent this, we use single quotes on our strings.
For example, it would be much less work for Ansible and also the person writing the configurations to use the file module in this instance, since the file module will recursively delete something if the state is set to absent. So the preceding command would be equivalent to the following command: $ ansible machinename -m file -a 'path=/tmp/testing state=absent' [ 14 ] Chapter 1 If you need to use features usually available in a shell while running your command, you will need the shell module. This way you can use redirection, pipes, or job back grounding.
Ansible Configuration Management by Daniel Hall