Architecting and deploying a modern web application is a daunting task, and as applications grow the problem gets more difficult. Using state-of-the-art deployment strategies can help you manage that complexity and make your life a lot easier. Splitting large applications up into microservices, and deploying them using Docker and a continuous delivery strategy is one common way of mitigating the complexity of modern applications.
Continuous delivery is an essential feature of modern web applications. Not only do you avoid big, failure-prone releases, but also you get to build on your code incrementally. With a continuous delivery strategy, your app is a series of snapshots built over time that allow you to easily identify where potentially-breaking changes occurred, or regressions were introduced.
While the idea seems scary at first, having more releases more frequently actually makes your life a whole lot easier by preventing new code from getting pent-up before deployment. If you trickle in commits one-at-a-time, you can easily find exactly when bad code gets released, and roll it back with just a single reversion.
When combined with Docker, the advantage of this approach becomes clearer. As a standalone deployment method, Docker lets you specify the environment your code executes in, in a repeatable manner. This lets you tie a specific Dockerfile to each commit you make, and allows you to recreate the same environment on different servers, such as development, staging, and production. You no longer have to worry about code that “worked on my machine” but ends up missing dependencies or having phantom linking issues in production.
Additionally, combining Docker with DevOps tools like Kubernetes allows you to manage hundreds of servers as easily as you’d manage a single one. Whether your application is just starting out or already residing on tens or hundreds of machines, having this kind of scalability baked into your application is a godsend. Managing servers with Docker means you don’t have to deal with the concerns of maintaining your own machine, with all the OS upgrades, hardware failures, and dependency headaches that come with it. Simply describe the environment you want, and Docker makes it so.
The final piece of the modern cloud-application puzzle is microservices. Microservices allow you to independently manage the components of your application, giving you the flexibility to develop and upgrade different services individually. For each bit of functionality your application provides, you can create a service with its own defined codebase, Dockers, and deployments.
With your code and deployments separated into different services, you’re free to view the separate components of your app as their own logical unit, and assign them different development resources. In turn, this leads to more specialized teams and more focused development, and ultimately is a huge productivity win for your organization.
As modern applications grow in complexity, and companies must innovate more rapidly to stay ahead, choosing the right deployment and management process becomes more important. With a Docker based microservices application, deployed in the cloud, and with continuous delivery, you’re well-positioned for scalability, maintainability, and growth.
The easiest, one-step solution for achieving this architecture is CloudPlex. CloudPlex is all about accelerating business innovation and growth. Our platform enables continuous delivery of Docker based Microservices, through our visual, drag-n-drop interface, hiding the complexity, and making it easy for teams to rapidly deliver business applications in the cloud.