Go inside the WAL file with this in-depth look at WAL file Log Sequence Number (LSN), WAL segment positions, WAL file names, and pg_wal_switch.

Systemd is a default system and service manager for Linux OSs. It is a collection of tools and daemons designed to manage and control the startup process, the system’s services, and processes, and to handle other system events, operations and stuff. Here’s…

If you are trying to update SonarQube to a higher version you might get org.sonar.process.MessageException: Property 'node.store.allow_mmapfs' is no longer supported. Let’s see how to fix it.

TerraCurl is a utility Terraform provider that allows engineers to make managed and unmanaged API calls in their Terraform code.

Various Docker Compose examples of selfhosted FOSS and proprietary projects. - Haxxnet/Compose-Examples

Shell and exec Docker forms present two different ways of specifying the command that need to run once the container is up and running. So, what’s the difference?!

A Dockerfile specifies the instructions for building a Docker image, which is essentially a packaged version of a software application along with its dependencies. However, when building a Docker image, you may not want to include all the files and directories…

Python is still one of most popular high-level languages for writing APIs and various scripts to this day. And, if you are still not dockerizing everything I don’t know what are you waiting for. Here are the steps required to dockerize a Python app.

If your Redis cluster is hosted somewhere on the cloud and you are wondering whether you can connect to your Redis cluster or not, here I will show you how you can quickly check if your Redis Remote Server is running and accepting connections.

Seemingly the MySQL installation might look like an easy task, but you might also face the following error The GPG keys listed for the "MySQL Community Server" repository are already installed but they are not correct for this package. Check that the correct…

gsutil is a Python app developed by Google that lets you handle the GCP Cloud Storage service, anything from uploading, downloading, sync, mostly doing backup and migration operation. The other recommended CLI tool is gcloud storage. Let’s see how we could…

Creating webhooks from the Jenkins GUI is straightforward. So that’s why here I will explain how to create a webhook as a code to send alerts to a Teams channel. Let’s see the solution.

The RecursionError: maximum recursion depth exceeded usually occurs when a function calls itself too many times, causing the stack to overflow. The solution is to check the code for infinite loops or unintended recursion, and adjust the recursion limit if…

The easiest way to export multiple MySQL databases in a separate .sql file is through a bash script.

Choosing between various CDNs and deploying them has never been easier. In this tutorial, you are going to see how to deploy a Content Delivery Network (CDN) on the Google Cloud Platform.

If you have an Nginx server set up to handle file uploads, and a user tries to upload a file that is larger than the configured client_max_body_size directive. When this happens, Nginx logs an error message that looks something like this: [error] 1234#0:…

Today’s error of the week is linked to the following Terraform issue: │ Error: Failed to query available provider packages │ │ Could not retrieve the list of available versions for provider hashicorp/google: could not connect to registry.terraform.io:…

If you have a Terraform configuration that creates an EC2 instance and an Elastic IP address, you should be aware that the Elastic IP address depends on the instance. If you accidentally remove the depends_on argument for the Elastic IP resource, Terraform…

There are few tricks you could try if you want to achieve “100%” uptime / rolling update while using Docker Compose only. Not Docker Swarm, not K8s.