Docker

Docker components • The Docker client and server, also called the Docker Engine. • Docker Images • Registries • Docker Containers Docker client and server Docker is a client-server application. The Docker client talks to the Docker server or daemon, which, in turn, does all the work. You’ll also sometimes see the Docker daemon called the Docker Engine. Docker ships with a command line client binary, docker, as well as a full RESTful API to interact with the daemon: dockerd. You can run the Docker daemon and client on the same host or connect your local Docker client to a remote daemon running on another host.  Docker images  Images are the building blocks of the Docker world. You launch your containers from images. Images are the ”build” part of Docker’s life cycle. They are a layered format, using Union file systems, that are built step-by-step using a series of instructions. For example: • Add a file. • Run a command. • Open a port. You can consider images t...