Thu. Jun 30th, 2022

Introduction: What is DevOps?

Through DevOps, developers and IT teams work together to bring software to the market faster. There is a time for building, testing and deploying code (for open source) and then there is an additional time when the code is live (for commercial products). What happens in between has a huge impact on how fast and how often software is released. There are many factors that influence the size of the gap between build and deploy times, but some common themes exist.
Two of those themes are the number of changes made in a particular release and the gross size of that release. While the latter is fixed by how your product was designed and built, the former can be controlled, or at least influenced. This is where DevOps brings a lot of value.
The goal The goal is to reduce changes per release as much as possible without sacrificing quality. This can only be done by understanding what’s really changing within each release, and why.

no one can do everything but everyone can do something
no one can do everything but everyone can do something

Microservice Architecture & Benefits of Containerization

A microservice architecture is a method of building software that breaks down a complex code base into smaller, independent parts. It is a way for developers to better understand their code and focus on what changes will affect the smallest part of the product. With microservices, teams can create individual applications that share resources without requiring everyone to build from the same source base. The result is a leaner, more efficient IT organization. Microservices are also an effective way to build scalable and reliable products. Because each microservice is a small, well-defined part of the overall application, it has fewer moving parts and is less likely to break.
The concept of microservices gained popularity in 2009 with the introduction of “Java Microservices”, a book by Martin Fowler. It has become a major trend in modern software engineering. Some companies have already adopted microservices and are moving from monolithic to microservice architecture. Microservices make it possible to build applications that are more agile and easier to maintain. They allow for swift adoption of new functionality with minimal costs in resources and time.
Anchored on a few key principles of agility, microservices are developed in small pieces called “micro-services”. A micro-service is a single executable (a software package) that can provide a particular feature or piece of functionality. Micro-services are light, lean, and easy to deploy, cleanly separating the design concerns into individual services.

no one can do everything but everyone can do something
no one can do everything but everyone can do something

Container Orchestration Platforms to Run & Manage Microservices

Okta does not disclose customer information, so it is not easily possible to verify the accuracy of the other figures.
Containers simplify the complexity of deploying and scaling applications. Docker containers are lightweight, take up no more space than an image file, and can run on any device that supports them. They are a great way to package applications for installation and delivery, whether on premise or in the cloud. A container can contain everything needed for an application to run, including the operating system, libraries and other dependencies. Containers are also easily portable and can run almost anywhere. The biggest advantage of using containers is the ability to deploy a single application on multiple servers in parallel with no changes in code or configuration.

no one can do everything but everyone can do something
no one can do everything but everyone can do something

DevOps Tools for Linux Containers and Kubernetes

Maybe a reason why so many companies that run very large networks experience all kinds of issues of scalability is because they do not have all the tools they need. Many companies are shifting to container technology and are using Docker when deploying their microservices. Here we have a few good examples: Google, Amazon and Netflix. Some of these companies have even gone as far as open sourcing the tools they use.
A very good example is Weave.io, which has become the standard for container networking. Weave will give you a stable and secure networking platform to make sure that your containers are able to communicate with each other in your infrastructure without getting locked out or blocked by firewalls and NATs – something we all know can happen when we need to add new interfaces for whatever reason.
Weave has been very successful in the industry and they are now working on a new version of it that will run on Kubernetes. Many companies are already testing their software, which is great to see.

no one can do everything but everyone can do something
no one can do everything but everyone can do something

Conclusion: Scale Your Development Workflow with the Right Toolset

A lot of companies and organisations are already basing their IT on Linux clusters. This is because these clusters work well for scale-out workloads, like running a website, for example. So, if you want to incorporate cluster technology into your development workflow, then you should look at how to create, run and manage those clusters with minimal fuss. Another reason companies and organisations should consider using Linux clusters for their microservices infrastructure is that it is easy to use and you get a lot of benefit from them without many of the drawbacks.
This post will provide some information about where Linux clusters are headed and how to consider adopting them for a microservices architecture.
Linux clusters are about scale-out workloads. A lot of people already have adopted Linux clusters for their corporate IT departments, and this trend is likely to grow And, as mentioned above, companies who want to become cloud providers should consider adopting cluster technology because it also helps with scaling out cloud workloads.
Currently, there are two ways you might be using cluster technology. The first is for performance. You can use the Linux kernel’s scale-out capabilities (SMP) for your applications. You can run a few instances of an application on a single machine at any one time, but then you can scale out this application by having multiple instances running on separate machines. This way, you get good performance from each instance and you’ll be able to handle many requests from requesting clients at any one time.
The second way to use cluster technology is to improve performance and security by migrating applications to clusters. Here, you might be running all your applications from single machines, but you want to deploy them all on separate machines for security and load-balancing reasons.
This is the case for companies whose IT departments are based on a microservices architecture, or who want to start building their IT around microservices.

no one can do everything but everyone can do something
no one can do everything but everyone can do something