DevOps: A New Perspective on Shared Automation

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What is DevOps?

DevOps is a set of various tools, practices, and ideals that combine software development (Dev) and IT Operations (Ops) into a single unifying force. It allows for better collaboration between developers, operations teams, system administrators, and system engineers. Their streamlined goal is to continually provide a high-value software product to the customer at high speed while monitoring and improving the overall process than using traditional software and infrastructure management. 

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What is a Service Mesh?

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servicemesh
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How to Install and Configure Chef on Ubuntu 18.04

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Introduction

In this article, we will be reviewing the Chef software, how it works, and why it is useful. We will also explore how it is helpful in DevOps. And then, we will install Chef on Ubuntu 18.04. 

What is Chef? 

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Chef is a configuration management system written in Ruby and Erlang using the object-oriented language for configurations description. It is used to ease the task of configuring and maintaining multiple servers. It can be integrated into cloud platforms, such as the new Liquid Web Managed Cloud and VMWare platforms to manage the server’s configuration processes. 

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What is Configuration Management?

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Configuration management is the process by which a company or organization defines and tracks the state of its infrastructural resources. Encapsulated in those resources are both physical hardware and software. It is a means to ensure that when changes are made to a system, those changes are tracked, geared toward the ultimate predefined criteria of what state should be.

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What is Puppet and What Role Does it Play in DevOps?

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What is Puppet?

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Puppet is a cross-platform client-server based application used for configuration management. It handles the software and its configurations on multiple servers. There are two versions available. One is open-source, the other is a commercial version. It works on both Linux and Windows platforms. It uses a declarative approach to automate updates, installations, and other tasks. This feature allows the software to configure those systems using files called manifests. A manifest contains the instructions for a group or type of server(s) being controlled. 

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What is Cloud Automation?

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What is Cloud Automation?

Cloud automation is a blanket term that is often used to denote specialized software, tools, and operations that help us reduce the manual effort when it comes to deploying and maintaining cloud-based IT infrastructure. Simply put, it is automating tasks programmatically.

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The Best DevOps Tools for Infrastructure Automation

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Today, DevOps teams try to utilize automation as much as possible. This is to cut down on the sheer number of repeatable processes to limit man-hours worked, throttle development efforts, and to reduce the possibility of errors. This is also a business necessity to reduce overhead costs, increase the speed of the CI/CD process and increase customer satisfaction. There are multiple individual areas that need to be automated to have a fully autonomous infrastructure. Luckily, there are various tools we can take advantage of to help us automate our infrastructure and make sure we have well-developed DevOps processes. In this article we will go over the several of the best DevOps tools for our infrastructure systems.

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How to Install Istio

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What Is Istio?

Istio is an open-source service mesh that makes it easier for a team to create a network or server cluster of deployed services. Istio provides several vital services consistently across a mesh network such as:

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Installing Jenkins on Ubuntu 16.04

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What Is Jenkins?

Jenkins is an open source automation server software developed in Java. It allows developers to integrate CI/CD (Continuous Integration/Continuous Delivery) pipelines within their organization that ease and automate workflows. It has an extensive help community, supports over 1000 plugins, allows users the ability to automate almost any task and, it saves significant time that can be better utilized addressing other issues. When automating tasks with Jenkins, users can optimize their workflow by quickly automating the jobs that servers are not able to do themselves. Jenkins has a wide array of features including building projects, executing unit tests for bug detection, analyzing static code, and deploying applications. For this article, we will learn how to install Jenkins on a Ubuntu 16.04 server using APT (Advanced Package Tool). When using APT, we can retrieve and install all of the needed dependencies as well. Continue reading “Installing Jenkins on Ubuntu 16.04”

Service Mesh Defined: A Simple Overview

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What is a Service Mesh?

A service mesh is a layer of communication and control between applications or microservices and the network stack they typically communicate over. This layer controls communication and helps microservices share data. This service-to-service interaction is governed by logic built into the service mesh layer. Simply put, microservices are small or partial applications, or individual functions, and the network stack is the physical networking layer.

How is a Service Mesh Achieved?

Typically, a service mesh is implemented via sidecars. These sidecars are usually attached to every microservice on your network. The service mesh abstracts communication between microservices into these sidecars and the sidecars communicate with one another in a mesh topology.

Because most modern apps are now smaller than their predecessors, they have shrunken the communication logic written into each app, microservice, function, etc. With one or two microservices, or maybe even a dozen, the communication logic generally isn’t difficult to deal with. At scale, or when you have hundreds of such apps, a service mesh can be thought of as ‘required’.

So, a service mesh consists of the following components:

  • A communication layer of control between apps or microservices
  • The network stack they typically communicate over
  • Abstracts communication and implements ‘sidecars’ with every microservice