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Restrict variable values in Terraform
If you have worked before with Terraform by provisioning a cloud infrastructure and/or writing Terraform modules, you must have stumbled upon some variable validation issues. This cou...
In Terraform, Jul 18, 2021How to install Redis on Rocky Linux 8
If you are seeking a caching solution for your application then Redis will appear on the list. Here we will show you how to install Redis on Rocky Linux which is a replacement for Cen...
In Redis, Rocky Linux, Jul 17, 2021How to install PowerShell on macOS
As a DevOps engineer, most likely we would prefer to work with our cool and comfy MacBook Pros. And if you are working with Azure, you will most probably need to install PowerShell at...
In PowerShell, macOS, Jul 16, 2021Clean up Docker space for Jenkins jobs
Managing and deploying complex infrastructure with Jenkins sometimes can cause job failure issues. For example, if you are working with microservices and all the deployments are going...
In Docker, Jenkins, Jul 15, 2021How to backup and restore a MySQL database
MySQL is one of the most popular open-source database engines. Manually backing up and restoring databases for whatever reasons could be found quite easy to execute, and we can see ho...
In MySQL, Jul 14, 2021How to manually change the Elasticsearch's allocation of shards
While updating the mapping on some ES clusters or doing a full reindex which are expensive operations, you may face a data node failure. Due to the node failure, there is a possibilit...
In Elasticsearch, Jul 13, 2021How to install Docker Compose on ARM64
In some of the previous posts I’ve covered how you can install Docker Compose on Linux distributions like Rocky Linux for example. It’s pretty easy to set it up, right?! Usually when ...
In Docker, Jul 12, 2021How to install Ansible on Rocky Linux 8
If there is a need to simplify the deployments of your applications, manage your infrastructure servers, etc… you can achieve it with Ansible which is one of the most popular tool for...
In Ansible, Rocky Linux, Jul 11, 2021How to backup and restore a PostgreSQL database
As an open-source databases, PostgreSQL is in the top 3 most popularly used databases which often can be found as a managed service offered by the public cloud giants. In one of the p...
In PostgreSQL, Jul 09, 2021How to copy files and folders to and from Docker Containers
There are situations when you need to copy files/folders from the container’s file system to the local machine and vice versa. You can achieve that with Docker copy command. In this t...
In Docker, Jul 08, 2021