By Daniel Hall
Leverage the facility 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 akin to looping, conditional executions, and activity delegations
- Explore the functions of Ansible from simple to extra complex themes with the aid of this step by step guide
Who This publication Is For
This ebook is meant for somebody who desires to research Ansible ranging from the fundamentals. a few adventure 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 set up cloud infrastructures
- Process information within Ansible and expand the performance of Ansible
- Learn the right way to shop secrets and techniques in Ansible's vault and notice different resource code administration techniques
- Build maintainable configurations for big environments
- Write customized Ansible plugins efficiently
- Extend the performance of Ansible via writing your individual modules
Ansible is an open resource software program platform for configuring and dealing with desktops. It offers a transparent and concise strategy to deal with the configuration of your Linux infrastructure. This e-book is a step by step consultant that offers you with the information you require to successfully deal with your platforms in an easy, quickly, and maintainable manner, with real-world examples.
You will start via studying the fundamentals of Ansible after which stream directly to exploring extra complex issues. you'll then study the elemental and intricate operations of playbooks and have interaction with modules to regulate home windows machines and set up them. additionally, you will get conversant in Ansible's extra complicated positive aspects reminiscent of serially updating machines, delegating projects to different machines, complicated makes use of of variables, looping and prerequisites, copying entire directories, and utilizing filters to method variables. in the direction of the tip of the publication, you are going to find out how to raise the performance of Ansible itself by way of writing your personal modules and plugins.
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Additional info for Ansible Configuration Management
This is a blessing and a curse; with a complete dependency system, we can get to a point where we are never quite sure what changes will be applied to a particular machine. Ansible, however, does guarantee that our changes will be executed in the order they are written. So, if one module depends on another module that is executed before it, simply place one before the other in the playbook. The handlers section The handlers section is syntactically the same as the task section and supports the same format for calling modules.
The Cloud Infrastructure modules can be a bit complicated to use, so we will be showing how to setup and install the Amazon modules. For details on how to configure the other modules, see their documentation using ansible-doc. The AWS modules The AWS modules work similar to how most AWS tools work. This is because they use the python boto library, which is popular with many other tools and follows the conventions of the original AWS tools that were released by Amazon. [ 37 ] Simple Playbooks It is best to install boto the same way that we installed Ansible.
Most of the time we will be using either local, winrm or ssh here. gather_facts Ansible will automatically run the setup module on the remote hosts unless we tell it not to. If we don't need the variables from the setup module, we could set this now and save some time. Set this to yes if you want Ansible to use sudo to become the root once it is connected to the machines in the play. The variable section Here, we can define variables that apply to the entire play on all machines. We can also make Ansible prompt for variables if they weren't supplied on the command line.
Ansible Configuration Management by Daniel Hall