If you are playing with Jenkins, one of the first things that you might be asking yourself is how to get the default Jenkins environment variables. It’s simple and easy, so let’s jump to the Solution part.

Attributes and metadata for DNS records.

Another issue to get off my chest. A few weeks back, I was struggling to find why the production PostgreSQL DB size was significantly larger than the sum of table sizes. I was bamboozled. However, it turns out I was running the “wrong” SQL query the whole…

If you find yourself connecting to a Docker container, so you could investigate an issue, update a .conf file, or whatever other reason, you are doing an anti-pattern. However, if you really want to create a “snapshot” out of a running Docker container, you…

As I was trying to get my Python Docker Compose stack up and running on my MacBook Pro, I’ve noticed the following message: Warning: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform…

Usually, you will get this kind of error client_loop: send disconnect: Broken pipe if you keep your ssh connection open more than the timeout limit. Let’s see how can we potentially fix it.

Another good nugget to share as I was trying to find out which production DB table was bloated and why. The size was in GB, and it was ridiculous, something around 50GB. You can find the queryies here → Show database and table size in PostgreSQL.

The original entry is in Japanese, published on December 28, 2022.

Vim (VI IMproved), as a common text editor based on Vi, since the early 90s cause headaches to every beginner and junior Ops engineer out there, whatever is a DevOps, SysOps, Cloud Administrator, etc. Here are few commands which I believe could use well as…

Test pull request code in the context of the broader application running in AKS with Azure Dev Spaces and Azure Pipelines.

Dissecting why everybody keeps talking about microservices.

Forget these interview questions 🙅‍ and never ask them your potential employees in software development (or elsewhere).

It’s not so common to be concerned about HTTPS endpoints in the development stage. Thus, it feels like suppressing warning messages is a common thing, right. So, as I was playing around with a dockerized Python app I was getting: InsecureRequestWarning: Unverified…

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Here’s how to use HashiCorp Boundary to provide identity-based remote access and credential management for Kubernetes clusters.

Run macOS VM in a Docker! Run near native OSX-KVM in Docker! X11 Forwarding! CI/CD for OS X Security Research! Docker mac Containers. - sickcodes/Docker-OSX

Yesterday, I’ve received the following error: head: illegal line count -- -4 as I was trying to remove the last 4 lines from a sitemap.xml file. This is called negative arguments. It was weird since it only happened on a macOS machine.

Provides cross platform runner

Git users are encouraged to upgrade to the latest version, especially if they use `git archive`, work in untrusted repositories, or use Git GUI on Windows.

Due to high Memory and CPU, I needed to spin up a new ec2 instance. After a while, tried to kick off my Jenkins CI/CD pipeline and got the following error: dial unix /var/run/docker.sock: connect: permission denied. Let me share how I manage to fix it with…