How to use when statement in Ansible
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…
David Cao
David is a Cloud & DevOps Enthusiast. He has years of experience as a Linux engineer. He had working experience in AMD, EMC. He likes Linux, Python, bash, and more. He is a technical blogger and a Software Engineer. He enjoys sharing his learning and contributing to open-source.
2 ways to Get IP address with Ansible
This article is part of the following series. Get IP address using fact variable with Ansible If you want to get the IP address of a host using Ansible, you can use the ansible_default_ipv4 variable, which is a built-in…
how to get file size with Ansible
In Ansible, you can use the stat module to get the size of a file on a remote host. The stat module retrieves information about a file, including its size, permissions, and other attributes. Get file size with stat module…
3 ways to create a dictionary variable in Ansible
In Ansible, a dictionary (also known as a hash, map, or associative array) is a data type that allows you to store and manipulate key-value pairs. Dictionaries are commonly used to represent configuration data, variables, and other structured information in…
How to get the disk size of a Postgresql database
If you’re a PostgreSQL user or developer, you may often need to monitor the size of your database to manage storage resources efficiently. One crucial aspect of this monitoring is checking the disk size of your database. In this post,…
How to get Postgresql server uptime
In this post, we will delve into the concept of PostgreSQL server uptime, why it matters, and how to accurately measure it using SQL queries and built-in functions. By understanding how to obtain the uptime of a PostgreSQL server, you…
4 ways to get Postgresql version
As a popular and powerful open-source relational database management system, PostgreSQL is widely used in many applications. In this post, we will explore different methods to retrieve the PostgreSQL version information. We will cover SQL queries that can be executed…
3 ways to Check RPM package dependency in Linux
This article is part of the following series. RPM packages can contain not only the software itself but also its dependencies, which are other software packages required for the software to function properly. Managing RPM package dependencies is crucial…
6 ways to troubleshoot ssh: connect to host port 22: Connection timed out
A connection timeout means that the client attempted to establish a network socket to the SSH server, but the server failed to respond within the timeout period. ssh: connect to host 203.0.113.0 port 22: Connection timed out In PuTTY, you…
4 ways to list files within a rpm package in Linux
This article is part of the following series. If you’re working with an RPM-based Linux distribution, you may need to list the files that are contained within an RPM package. This can be useful for a variety of reasons,…