Download Ansible: From Beginner to Pro by Michael Heap PDF

By Michael Heap

This publication is your concise advisor to Ansible, the straightforward method to automate apps and IT infrastructure. In below 250 pages, this publication takes you from understanding not anything approximately configuration administration to realizing tips to use Ansible in a certified setting.

You will the best way to create an Ansible playbook to instantly arrange an atmosphere, able to set up an open resource undertaking. You’ll extract universal initiatives into roles for you to reuse throughout all of your tasks, and construct your infrastructure on most sensible of present open resource roles and modules which are on hand so you might use. you'll discover ways to construct your personal modules to accomplish activities particular for your enterprise. through the top you'll create a complete cluster of virtualized machines, all of that have your functions and all their dependencies put in immediately. ultimately, you are going to attempt your Ansible playbooks.

Ansible can do as a lot or as low as you will have it to. Ansible: From newbie to Pro will educate you the foremost abilities try to be an Ansible expert. You’ll be writing roles and modules and developing complete environments with out human intervention very quickly in any respect – upload it on your library today.

What you'll Learn

  • Learn why Ansible is so well known and the way to obtain and set up it
  • Create a playbook that immediately downloads and installs a well-liked open resource project
  • Use open resource roles to accomplish universal initiatives, and write your personal particular for your business
  • Extend Ansible via writing your individual modules
  • Test your infrastructure utilizing attempt Kitchen and ServerSpec

  • Who This publication Is For
    Ansible: From newbie to professional is for builders that at the moment create improvement and creation environments by way of hand. when you are operating apt-get set up regularly, this booklet is for you. Ansible provides reproducibility and saves you time suddenly. Ansible: From newbie to Pro is excellent for any developer desirous to increase their skillset and examine new instruments.

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Additional resources for Ansible: From Beginner to Pro

Example text

Using ignore_ errors on a command tells Ansible that it’s OK for that command to fail: - name: Does the database exist? wp_users LIMIT 1;" register: db_exist ignore_errors: true This tries to select the first user from your WordPress database. This will fail if the database doesn’t exist, which is your trigger to restore the database. You store the return value in db_exist for use in later tasks. rc > 0 Make sure to add these tasks to your playbook now. rc is greater than 0. rc stands for return code, and it is always zero when things are successful.

That’s PHP and MySQL complete, but next you need to install a web server to handle the incoming requests. Installing nginx You need to install and configure nginx before you can start to install WordPress. nginx (which is an alternative to the well-known Apache web server) is the software that will receive HTTP requests from your users and forward them to PHP, where WordPress will handle the request and respond. There’s quite a lot of configuration to be done for nginx. We will walk through this once we have nginx installed.

However, this isn’t where you told nginx that your application lives, so let’s copy all of the files that you’ll need into the correct location. At the time of this writing, the copy module does not support copying directories from one place to another on the remote server, so you’ll have to use the shell module directly. com state=directory - name: Copy WordPress files command: cp -a /tmp/wordpress/. com in your web browser; you should see a WordPress installation screen. It tells you that you’ll need to know all of your database credentials to start the installation process.

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