DevOps Tutorials and Insights

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DevOps tutorials, posts, and more

Using Docker and Docker Compose for Local Development and Small Deployments

In this tutorial, I’ll introduce Docker, what all the hype has been about, what advantages it can give you, and how you can get started using it for you development projects.
Using Docker and Docker Compose for Local Development and Small Deployments

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

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

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

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

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

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

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

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

Wrapping a LAMP project into Vagrant with Ansible

As a contractor software developer, Codementor Vyacheslav is asked from time to time to audit LAMP projects. As project configuration is different, he uses a so-called “umbrella repository environment”, which allows him to wrap such projects into reusable vagrant environment without need to amend audited projects codebase itself. In this article, he shares his approach with you
Wrapping a LAMP project into Vagrant with Ansible

Getting a Development Environment Set Up Before You Finish Your Coffee

This article demonstrates an approach for unattended environment configuration with ansible. Applies for workplaces based on Ubuntu 14.04 LTS only.
Getting a Development Environment Set Up Before You Finish Your Coffee

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

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

Automating Network Mastering Scenarios for Amazon VPC with Ansible

In this article, the author will demonstrate how he automates network creation with Ansible for applications according to project requirements, and store the network creation logic alongside a project. This way, your project infrastructure evolves and releases together with your application releases.
Automating Network Mastering Scenarios for Amazon VPC with Ansible

How to Run Different MySQL versions on the Same Server

Here's a quick guide on how you can run different versions of MySQL on your Ubuntu machine with the help of Docker.
How to Run Different MySQL versions on the Same Server

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

Remote Oracle DBA: Moving to the Cloud

If you have been thinking of migrating to the cloud, then your DBA or database administrator should look at the pros and cons in order to figure out if this transition will work well with the goals and resources of the organization.
Remote Oracle DBA: Moving to the Cloud
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