Book Image

Learn Ansible

By : Russ McKendrick
Book Image

Learn Ansible

By: Russ McKendrick

Overview of this book

Ansible has grown from a small, open source orchestration tool to a full-blown orchestration and configuration management tool owned by Red Hat. Its powerful core modules cover a wide range of infrastructures, including on-premises systems and public clouds, operating systems, devices, and services—meaning it can be used to manage pretty much your entire end-to-end environment. Trends and surveys say that Ansible is the first choice of tool among system administrators as it is so easy to use. This end-to-end, practical guide will take you on a learning curve from beginner to pro. You'll start by installing and configuring the Ansible to perform various automation tasks. Then, we'll dive deep into the various facets of infrastructure, such as cloud, compute and network infrastructure along with security. By the end of this book, you'll have an end-to-end understanding of Ansible and how you can apply it to your own environments.
Table of Contents (20 chapters)

Running the playbook

There are no changes to our site.yml file, meaning that we just need to run the following command to start the playbook run:

$ ansible-playbook -i production site.yml

This will run through the playbook, giving the following output; please note that I have trimmed a few parts of the playbook output:

PLAY [wordpress]

TASK [Gathering Facts]
ok: [centos]
ok: [ubuntu]

TASK [roles/stack-install : include the operating system specific variables]
ok: [centos]
ok: [ubuntu]

TASK [roles/stack-install : install the repo packages]
skipping: [ubuntu] => (item=[])
changed: [centos] => (item=[u'epel-release', u'https://centos7.iuscommunity.org/ius-release.rpm'])

TASK [roles/stack-install : add the NGINX mainline repo]
skipping: [ubuntu]
changed: [centos]

TASK [roles/stack-install : update all of the installed packages]
skipping: [ubuntu]
changed: [centos]

TASK...