First, there are solutions such as VMware's Thinapp, which virtualize san application (not to be confused with virtualizing an operating system).

There have been various attempts to make application delivery easier over the years. It can also lead to additional rework for the developer or, in some extreme cases, full incompatibility with an existing application. This often becomes a careful balancing act that requires larger deployment teams to test the application on different system configurations.

It may seem like an easy fix for this would be to include all the libraries alongside the release, but what if this release contains a newer library that overwrites the older version, which may be required for a different application?ĭevelopers need to consider their new releases, as well as any potential conflicts with any existing software on the user's workstations. Often, the issues that creep up are related to a library that the developer had on their machine, but it wasn't included in the distribution of the package. This is one of the most frustrating things a developer can encounter when delivering an application. When I click the submit button, it shows an error about a missing dependency.'ĭeveloper: 'That's weird it's working fine on my machine.' It went through weeks of testing and you are the first to get the new release.' You may have experienced a conversation like this at your office or school:ĭeveloper: 'Here's the new application. Finally, you will discover how to deploy an entire platform to the cloud using continuous integration and continuous delivery (CI/CD).īy the end of this Kubernetes book, you will have learned how to create development clusters for testing applications and Kubernetes components, and be able to secure and audit a cluster by implementing various open-source solutions including OpenUnison, OPA, Falco, Kibana, and Velero. Moving on, you’ll find out how to integrate your container to a cloud platform and integrate tools including MetalLB, externalDNS, OpenID connect (OIDC), pod security policies (PSPs), Open Policy Agent (OPA), Falco, and Velero. As you make progress, you’ll learn about cluster architecture, Kubernetes cluster deployment, and cluster management, and get started with application deployment. You’ll then get to grips with containerization and understand its core functionalities, including how to create ephemeral multinode clusters using kind. The book begins by introducing you to Docker and Kubernetes fundamentals, including a review of basic Kubernetes objects. This book will help you acquire the knowledge and tools required to integrate Kubernetes clusters in an enterprise environment. Containerization has changed the DevOps game completely, with Docker and Kubernetes playing important roles in altering the flow of app creation and deployment.

Install docker on kubernetes cli