Quick and Easy Docker Learning with Play‑with‑Docker (PWD) – A Browser‑Based Docker Playground

This is the ninth article in the d4d series, presenting the fastest and most efficient way to learn Docker without setting up a local environment—just a web browser is needed to start using common Docker commands and even launch a five‑node Docker Swarm cluster.

The featured site, Play‑with‑Docker (PWD) at http://play-with-docker.cn , is a Chinese‑localized version of the original Play‑with‑Docker.com, hosted on Microsoft Azure in Beijing to ensure fast access for Chinese developers.

PWD offers several key features: (1) instant creation of server nodes using Docker‑in‑Docker technology, (2) a built‑in browser SSH client that eliminates the need for separate SSH tools, (3) automatic port exposure that converts container ports to public URLs without firewall changes, and (4) one‑click deployment of a Swarm cluster by selecting the desired number of nodes.

Users are encouraged to log in to the site, explore Docker hands‑on, and, if interested in the underlying implementation, visit the project's GitHub repository at https://github.com/lean-soft/play-with-docker to contribute or study the source code.

Additional related Docker articles and tutorials are listed for further reading.