Docker docker.io is an open platform for developing, shipping, and running applications. Docker combines a lightweight container virtualization platform with workflows and tooling that help manage and deploy applications. The most obvious difference between Virtual Machines (VMs) and Docker containers are that VMs usually are dozens of gigabytes in size and require gigabytes of memory, whereas containers are megabytes in disk and memory size requirements. Furthermore, the Docker platform abstracts away host operating system (OS) level configuration settings, so every piece of configuration that is needed to successfully run an application is encoded within the human-readable Dockerfile format, as demonstrated here:
Dockerfile
FROM duluca/minimal-node-web-server:8.11.1
WORKDIR /usr/src/app
COPY dist public
The preceding file describes a new container...