Posts

2024

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2023

Building Trust in the Software Supply Chain

10 minute read

What steps can we take to establish trust in our Software Supply Chain and ensure that our software can be traced back to its origin without malicious code o...

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2022

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2021

Testing eBPF in OpenShift 4

4 minute read

What is eBPF and how can I use it in OpenShift 4? What are the tools and the benefits of eBPF programs? How can we run custom eBPF programs in our cluster to...

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2020

DNS Forwarding in OpenShift

7 minute read

How can I use a custom DNS in our cluster without modifying the actual cluster DNS on top of, for example, AWS or Azure? How can I forward custom DNS and use...

Traffic Mirroring in OpenShift Service Mesh

3 minute read

How do you test with live production traffic in a safe, secure, and predictable way? How can we achieve this within our Service Mesh? And what is traffic mir...

DNS Deep Dive in OpenShift 4

9 minute read

How does the DNS of OpenShift 4 work? And the operators to manage it? And how can I check the resolution basics within and outside my OCP4 cluster?

Microservices Deployment in Service Mesh

5 minute read

How can we deploy microservices within Service Mesh easily and automatically? How to control and istiofy them? And what are the main components involved?

Service Mesh Installation

5 minute read

How to install Service Mesh easily, in a straightforward way, with a basic but fully operational installation on top of OpenShift 4? And what are the advanta...

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2019

UPI Installation of OpenShift 4

9 minute read

How can we install OpenShift 4 in UPI mode on AWS? How can we do it in a semi-automatic way? What are the caveats and the steps to execute?

Deep dive of Route Sharding in OpenShift 4

11 minute read

This blog post aims to provide a guide to implement Route Sharding in OpenShift Container Platform 4 (deployed in AWS), creating multiple routers for particu...

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2018

Share Vault between Ansible Core Roles

less than 1 minute read

Sometimes you need to share the Ansible Vault between different Ansible Roles, because you want to integrate it within Tower or just in different Workflow Te...

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2017

Custom Backup Satellite 6

1 minute read

Some time ago, a customer asked a question about Satellite 6.1.x: what about the backups? So, I dug further into the official documentation and found a scri...

Control Pacemaker Resources with Ansible

1 minute read

When an OpenStack installation is configured in High Availability across the several pieces it is divided into (haproxies, controllers, backends, etc.), ther...

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