Marcos Vallim – Medium

Marcos Vallim

Marcos Vallim
in
ITNEXT

Kubernetes Journey — Up and running out of the cloud — How to setup the HAProxy Cluster with high…

In this article, we’ll get deep into how to configure HAProxy Cluster with high availability with the help of Corosync and Pacemaker.

15 min readFeb 24, 2020

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Kubernetes Journey — Up and running out of the cloud — How to setup the HAProxy Cluster with high…

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Marcos Vallim
in
ITNEXT

Kubernetes Journey — Up and running out of the cloud—How to setup the Gateway and Busybox…

We will use as the basis for creating the specific images for the following components of our solution: Gateway and Busybox…

10 min readDec 10, 2019

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Kubernetes Journey — Up and running out of the cloud—How to setup the Gateway and Busybox…

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Marcos Vallim
in
ITNEXT

Kubernetes Journey — Up and running out of the cloud — Linux Image

Here we configure the Debian/Ubuntu Linux image that will serve as the basis for all the other components of our tech stack…

5 min readOct 12, 2019

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Kubernetes Journey — Up and running out of the cloud — Linux Image

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Marcos Vallim
in
ITNEXT

Kubernetes Journey — Up and running out of the cloud — flannel

In this article, we’ll present some details about flannel and what role it performs in a Kubernetes network. I highly recommend you to…

9 min readJul 22, 2019

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Kubernetes Journey — Up and running out of the cloud — flannel

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Marcos Vallim
in
ITNEXT

How to create a custom Ubuntu live from scratch

This procedure shows how to create a bootable and installable Ubuntu Live (along with the automatic hardware detection and configuration)…

9 min readJun 29, 2019

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How to create a custom Ubuntu live from scratch

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Marcos Vallim
in
ITNEXT

Kubernetes Journey — Up and running out of the cloud — etcd

In this article, we’ll present some details about etcd and how it fits into the Kubernetes Cluster. I highly recommend you to follow the…

6 min readJun 26, 2019

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Kubernetes Journey — Up and running out of the cloud — etcd

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Marcos Vallim
in
ITNEXT

Kubernetes Journey — Up and running out of the cloud — Master and Worker

In this article, we’ll introduce each of the items that form the Kubernetes Master and Worker (Controller manager, API server, etcd…

9 min readJun 17, 2019

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Kubernetes Journey — Up and running out of the cloud — Master and Worker

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Marcos Vallim
in
ITNEXT

Kubernetes Journey — Up and running out of the cloud — Kubernetes Overview

We have walked a long path already in this journey. In the first article, we briefly described how the IT industry has evolved to the...

9 min readJun 3, 2019

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Kubernetes Journey — Up and running out of the cloud — Kubernetes Overview

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Marcos Vallim
in
ITNEXT

Kubernetes Journey — Up and running out of the cloud — Network

In this article, we’ll introduce each of the components that will form our network and a brief overview of IPs, Subnets, DHCP, DNS, etc. I…

10 min readMay 27, 2019

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Kubernetes Journey — Up and running out of the cloud — Network

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Marcos Vallim
in
ITNEXT

Kubernetes Journey — Up and running out of the cloud — Technology Stack

In this article, we’ll introduce each of the components that will be part of our technology stack. I highly recommend you to follow the…

12 min readMay 15, 2019

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Kubernetes Journey — Up and running out of the cloud — Technology Stack

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Marcos Vallim

Marcos Vallim

I’m passionate about technology, curious, self learner, husband. More than 26 years of experience in IT, software development, network and security.

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