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How 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, 2021

How 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, 2021

How 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, 2021

How 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, 2021

How 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, 2021

How 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

How to fix 'kernel driver not installed (rc=-1908)' error on macOS

The first time you try to spin up a VM on macOS, you will probably go with VirtualBox as a Hypervisor, and honestly VBox is pretty good for beginners who just want to get the things d...

In macOS, Virtualization, Jul 07, 2021

How to install Docker Compose on Rocky Linux 8

Installing Docker Compose on Rocky Linux follows the same procedure as the other Linux distros. First, you need to make sure that you have installed Docker on your Rocky Linux machine.

In Docker, Rocky Linux, Jul 06, 2021

How to install Docker on Rocky Linux 8

In the early December last year, Red Hat took us all by surprise with the CentOS 8 End Of Life (EOL) announcement, that was scheduled for the end of 2021. In response to this, the ori...

In Docker, Rocky Linux, Jul 05, 2021

How to fix Docker's login 'unknown shorthand flag' error

In some of the previous posts I’ve covered the authorization token method when authenticating to an AWS ECR private registry. If you have followed the steps as described in the post y...

In Docker, AWS, Jul 03, 2021