DOCKER ENGINE Dependencies are the software or libraries that are required to install or run another software. For example, to install Jenkins, you need to install Java first. To install Ansible, you need to install Python first. Sometimes, different software may require different versions of the same dependency. For example, some software may need Python 2, while others may need Python 3. However, you cannot have two versions of Python on the same operating system. Docker is a software that solves this problem by creating isolated environments called containers. Each container can have its own dependencies and software without affecting the others. Docker uses the base kernel of the operating system to create containers. Therefore, you can only run applications that are compatible with the base kernel. For example, if you have a Windows-based operating system, you can only run Windows applications in Docker containers. If you have a Linu