Ansible is a powerful and flexible automation tool, capable of handling many complex tasks, including modifying files. Three of the key modules that Ansible provides for file modification are lineinfile, replace, and blockinfile. The lineinfile module is used when you need to manage lines in text files. It can ensure a particular line is present …
DevOps
In the realm of IT automation, Ansible has emerged as a powerful tool for streamlining various administrative tasks. Among these tasks, user management stands out as a common and often repetitive process. Ansible provides two primary approaches for creating users: ad-hoc commands and playbooks. This article aims to shed light on both ad-hoc commands and …
In AWS EC2 (Elastic Compute Cloud), user data refers to the information or scripts that you can provide to an EC2 instance during its launch. User data can be used to automate instance configuration and perform various tasks on the instance. When launching an EC2 instance, you can specify user data in the form of …
Create a file with Ansible file module There are a few ways to create a file with Ansible. One way is to use the file module. The file module has a state option that can be set to touch to create a new file. Description path The path of the file that needs to …
Some tasks may consume a significant amount of system resources, such as CPU or memory, and running too many of these tasks at once can cause performance issues. By adding a pause between loop iterations, you can help to manage resource consumption and prevent performance issues. It can help to avoid overwhelming the target system …
selectattr in Ansible selectattr is a filter plugin in Ansible that allows you to select a subset of elements from a list of dictionaries based on the value of a particular attribute. Its syntax is as follows: <list of dictionaries> | selectattr(‘<attribute>’, ‘<operator>’, ‘<value>’) Key Description list_of_dictionaries A list of dictionaries representing items to …
This article is part of the following series. 4 Ways to Find network interfaces in Linux 5 useful Linux network troubleshooting commands 3 Easy Ways to Find IP address in Linux 3 Ways to Find MAC Address In Linux Get MAC address with Ansible You can use the ansible_default_ipv4.macaddress variable to get the MAC …
This article is part of the following series. 6 performance tools you should know in Linux 5 Ways to Check disk size in Linux 4 Ways to Check Disk Partition with Examples in Linux How I Fixed a disk performance issue in Minutes – A Step by Step Guide to Optimize Linux System Get …
When statement in Ansible In Ansible, the “when” keyword is used to specify a condition or a set of conditions that must be met in order for a task to be executed. It allows you to add conditional logic to your Ansible playbooks and control the flow of execution based on certain conditions. The “when” …
This article is part of the following series. 5 useful Linux network troubleshooting commands 3 Ways to Find MAC Address In Linux What is 0.0.0.0 ip address? 4 ways to check network usage in Linux Get IP address using fact variable with Ansible If you want to get the IP address of a host …