Container-as-a-Service (CaaS), also known as Platform as a Service, is a subscription-based web-service model which enables users to manage software, containers, and clouds with various APIs (Application Programming Interfaces), container-based virtualization, or APIs directly provided by the provider. It also reduces the time required to implement these services.
Container-as-a-Service is used to develop, test, and deploy applications quickly and easily. It eliminates the need for developers to learn any programming language or select a specific OS (operating system). The support for containers is great for both, software development and testing. It simplifies the deployment of multiple operating systems. This simplifies the technical issues of running multiple operating systems on a single platform.
Container-as-a-Service provides guaranteed portability and flexibility of the containers used. In case of server failures, the user is not left with useless applications and data. Rather, the entire system is reloaded in a few seconds with another copy of the app running on a different server. This ensures portability, which is very important for enterprises. They can easily respond to server downtime without affecting the production environment.
With Container-as-a-Service, developers can easily create highly customized environment. Users can select the most appropriate containers matching their requirements. They can install the corresponding dependencies and configure their settings. Furthermore, they can set up an efficient network to allow containers to communicate with each other. They do not need to learn any complex API's for connecting to the host platform.
Container-as-a-Service offers a smooth development process. The developers can rapidly create and deploy multiple versions of the application, which minimizes the number of platform-specific code. This enables faster application deployment and continuous integration services for improving the quality of the code. Container development simplifies the testing process, reduces the resources required for testing, and improves the QA process.
Container-as-a-Service also helps developers deploy and run their applications in a matter of minutes. They do not need to know the OS or the devices. All they need to know is how to run a container on a virtual machine. It also helps developers to make use of the various features of VMWare and Xen Virtualization for running the containers in a virtual environment. This reduces overall resource usage and accelerates the deployment process.
Container-as-a-Service also allows developers to create multiple images of the OS and use them in a virtualized environment. They can then make use of the features of VMW are and other available virtualization tools. The developers can create as many containers as they want and then associate them with the OS of their choice. They can install applications using environments or make use of an in-place virtual server.
The biggest advantage of using this technology is the portability provided by the container. As the applications are run in a virtual environment, the developer does not need to code specific OS or device drivers for each of the containers. They just has to specify the OS and device drivers and that's it. Thus, it provides an easy and fast way to develop highly functional and scalable solutions that are compatible to the overall business requirements.