DevOps Tutorials and Insights

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Getting Started with Docker

Get starter with Docker with this quick guide.
Getting Started with Docker

Using ansible-container to build your next application base image

Article describes approach for the ansible-container to be used to construct and build application images in docker. In particular, choosing init system, running multiple services withing container.
Using ansible-container to build your next application base image

Træfik — as an alternative reverse proxy to nginx for self hosted dockerized applications

Reverse proxy can be executed in many ways, we can make custom service, we can use Nginx as above, but it would be really nice if for such smaller projects there could be easy configurable tool, with dynamic discovery of new subdomains, loadbalancing etc. In NodeJS world PM2 came. In docker world - once of the recent options is Traefik (traefik.io), written in Go language that promises to help us with that
Træfik — as an alternative reverse proxy to nginx for self hosted dockerized applications

Evaluating ansible-container as a tool for custom docker containers build

Using ansible-container: setup necessary development environment for ansible-container build custom application image using ansible-container run application , optionally debug application, stop application
Evaluating ansible-container as a tool for custom docker containers build

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

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

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

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

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

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

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

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

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?

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.

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

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

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

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