This repository hosts the demo code used during the Summer of Tech “Intro to Docker” bootcamp 2025.
This code will run a simple Node.js application. This application will host a single webpage which displays the. version number of the Postgres database being used.
After installing Docker for your respective system, try running these commands to explore:
| Command | Description |
|---|---|
docker run -it node:24 |
Starts a Node.js Docker container in an interactive mode. This will give a Node.js REPL. You may exit by typing .exit |
docker run -it node:24 /bin/bash |
Starts a Node.js Docker container in an interactive mode. This is an example of passing a custom startup “CMD”, in this case, a bash shell. Try some linux commands like ls and cd to explore the file system. You may exit by typing exit |
docker build . -t summer-of-tech |
Builds an Image from our custom Dockerfile. You can list Docker images with the command docker images |
docker compose up |
Starts the Docker containers defined in docker-compose.yml as a foreground process. Try visiting http://localhost:3000 in your browser. You may type ctrl + c to stop. |
docker compose up --detach |
Starts the Docker containers defined in docker-compose.yml as a background process. Try visiting http://localhost:3000 in your browser. You can check out running processes with docker ps, or stop the process with docker compose stop |