DevOps Tutorials and Insights

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DevOps tutorials, posts, and more

What DevOps really is? A developers perspective.

A developers perspective of working as a DevOps practitioner
What DevOps really is? A developers perspective.

Build a Backend for IoT Projects and Set Up a CI/CD Pipeline with Docker

The post will cover the details of creating a simple backend that collects data sent by IoT devices. We will use Node.js, Docker, InfluxDB, and Grafana and deploy it on DigitalOcean through Docker Cloud.
Build a Backend for IoT Projects and Set Up a CI/CD Pipeline with Docker

Automate your macOS Setup Upgrade

There are a few powerful tools you can use to set up your development environment on macOS when doing a clean install.
Automate your macOS Setup Upgrade

Ansible Automation: A Comprehensive Guidebook

An Ansible primer for those of you who might have been wanting to learn about Ansible but were put off by its documentation.
Ansible Automation: A Comprehensive Guidebook

Secure Jumpbox to Access your Network Infrastructure from Remote Locations

In this article, I will demonstrate some devops mashup — how to combine four ansible roles to build such jump box based on Ubuntu box.
Secure Jumpbox to Access your Network Infrastructure from Remote Locations

How to Run Python and Ruby on Heroku with Multiple Buildpacks

The aim of this article is to try to show how I handled a mentee's request and let you know about how to run multiple-buildpacks on Heroku.
How to Run Python and Ruby on Heroku with Multiple Buildpacks

Should You Use www. For Your Site?

The camps are well and truly established. In the red corner we have yes-www and in the blue corner we have no-www. But who should we back?
Should You Use www. For Your Site?

Linking Docker Containers

This tutorial will teach you how to create and link docker containers.
Linking Docker Containers

Running a Linux Web Server on an Android device

With the GnuRoot program, it’s possible to run a Linux operating system on Android without “rooting” the device. With this ability, servers like Sinatra, Rails, Node, etc. can run webapps on localhost. Here's how to do it on your Android device.
Running a Linux Web Server on an Android device

Deploying a Ruby Application with Ansible

Nowadays, you can get your own dedicated server up and running in seconds. Once you get it up, do you really need to spend several hours on configuring it for your application needs? Do you really want to repeat the same steps with each new server? In this article, you'll learn how to automate this process with Ansible.
Deploying a Ruby Application with Ansible

Implementing git-flow Releasing Model in Continuous Integration Process

Perhaps most developers are familiar with the git-flow model that makes the release process controlled. In this article, you will learn one of approaches to introduce git-flow releasing into your project, which can be integrated with the continuous integration tool of your choice (e.g. Atlassian Bamboo.)
Implementing git-flow Releasing Model in Continuous Integration Process

How To: Get a Push Notification When Your Heroku App is Deployed

You can always log into your Heroku Dashboard, open the app, navigate to the "Activity" tab, and watch the progress from there, but who has time for that?
How To: Get a Push Notification When Your Heroku App is Deployed

Setup & Configure Jenkins for Your Team

Nowadays continuous integration is an important part of the agile software development life-cycle. Here's a quick-start guide for setting up and configuring Jenkins on a Unix system.
Setup & Configure Jenkins for Your Team

Preparing & Securing Your Ubuntu Box for Deployment

Nowadays deployments have moved from bare-metal servers to virtual machines that are quicker to start, either through ready-to-use preconfigurations or custom provisioning. Here's a step-by-step guide for you to get started if you decide to go with custom provisioning.
Preparing & Securing Your Ubuntu Box for Deployment

Setting Up Gulp Tasks for the First Time

Trying to set up Gulp tasks for the first time? Through this tutorial, you will learn how to compile and run tasks using Gulp.js.
Setting Up Gulp Tasks for the First Time

An Introduction to Docker by Instructor of O’Reilly’s Docker Tutorial

This article will introduce you to what is Docker, how Docker works, and some basic terminology such as containers, images, and dockerfiles. It is based on the Codementor Office Hours hosted by the author of the O’Reilly Docker video course, Andrew T. Baker.

Storing Tree Structures in MongoDB: Code Examples

This tutorial demonstrates approaches for storing tree structures with NoSQL database, MongoDB.
Storing Tree Structures in MongoDB: Code Examples

Postmortem: Migrating MongoDB to DynamoDB

When you're using MongoDB as your database program but service and data grows and differentiates, what can you do? Shawn Chiao is here to share the successes and roadblocks he faced when migrating MongoDB to DynamoDB.
Postmortem: Migrating MongoDB to DynamoDB

Using Vault to Secure Your Deployment Secrets

Vault is one of the tools that might provide acceptable level of security for devops engineers for enterprise scenarios as well as for smaller teams like startups, so here's a quickstart guide on how to get started with Vault
Using Vault to Secure Your Deployment Secrets

Enable virtualization inside ESXi virtual machine

This quick tip will teach you how to start a Vagrant-controlled image inside an ESXi Virtual Machine
Enable virtualization inside ESXi virtual machine

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