10 Ansible modules for Linux system automation. These handy modules save time and hassle by automating many of your daily tasks, and they're easy to implement with a few commands.
Ansible is a complete automation solution for your IT environment. You can use Ansible to automate Linux and Windows server configuration, orchestrate service provisioning, deploy cloud environments, and even configure your network devices.
Ansible modules abstract actions on your system so you don't need to worry about implementation details. You simply describe the desired state, and Ansible ensures the target system matches it.
This module availability is one of Ansible's main benefits, and it is often referred to as Ansible having "batteries included." Indeed, you can find modules for a great number of tasks, and while this is great, I frequently hear from beginners that they don't know where to start.
Although your choice of modules will depend exclusively on your requirements and what you're trying to automate with Ansible, here are the top ten modules you need to get started with Ansible for Linux system automation.
The copy module allows you to copy a file from the Ansible control node to the target hosts. In addition to copying the file, it allows you to set ownership, permissions, and SELinux labels to the destination file. Here's an example of using the copy module to copy a "message of the day" configuration file to the target hosts:
- name: Ensure MOTD file is in place copy: src: files/motd dest: /etc/motd owner: root group: root mode: 0644
For less complex content, you can copy the content directly to the destination file without having a local file, like this:
- name: Ensure MOTD file is in place copy: content: "Welcome to this system." dest: /etc/motd owner: root group: root mode: 0644
This module works idempotently, which means it will only copy the file if the same file is not already in place with the same content and permissions.
The copy module is a great option to copy a small number of files with static content. If you need to copy a large number of files, take a look at the synchronize module. To copy files with dynamic content, take a look at the template module next.
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