Kubernetes on Jose Castrillo

DevOps Projects

Sat, 28 Feb 2026 00:00:00 +0000

Senior DevOps Engineer - Projects & Professional Journey

My Career Journey

Sat, 28 Feb 2026 00:00:00 +0000

Senior DevOps Engineer - Projects & Professional Journey

Linux on Business

Fri, 07 Nov 2025 00:00:00 +0000

Why Linux 🐧? the question isn’t why Linux ? the real question is why not ? did you try it?

Linux is widely regarded as the best option for development, DevOps, hybrid cloud solutions, and even as a desktop for home and office environments due to its open-source nature, robust ecosystem, scalability, security, and cost-effectiveness. Its flexibility allows seamless integration across diverse platforms, from small IoT devices to large-scale cloud infrastructures, making it the backbone of modern technology stacks.

csi interface for eks by terraform

Tue, 10 May 2022 00:00:00 +0000

It has been a while since my last post, I was busy these last couples of weeks; meanwhile I’ve learned how to implement a csi interface on eks (aws k8s) and it’s pretty interesting on AWS by EKS service, thus I though it can be useful this content into a post.

Requirements:

You will need your eks already running.

I’ll point each tools, techs, etc I used on this procedure:

/prometheus/data/chunks_head/ troubleshoot

Mon, 22 Feb 2021 00:00:00 +0000

I will share a little workaround in order to re-establish Prometheus service back in the game.

Origin of issue:

I’ve had an issue with my local network at home by the ISP provider, I had have shut down my RaspberryPi and other devices.

Then when I could solved the issue and all my devices were up and running I checked up my services and I found that Prometheus got stuck by a “mmap: invalid argument” message.

Enable "Kubectl" auto-completion in the Shell (Linux)

Sun, 25 Nov 2018 00:00:00 +0000

When you’ve done the SDK installation in your Linux workstation. list the components you have installed, then you will see the full list additional components from gcp SDK:

gcloud components list
gcloud components install <COMPONENT_ID>
gcloud components install kubectl

Then follow the instruction from the kubernetes official documentation, check the “bash-completion” and finally issue the command below:

echo "source <(kubectl completion bash)" >> ~/.bashrc

Even you can go directly through your .bashrc (sudo) to add manually, it should look like: