Learning Docker

Dockerfile

A blueprint for creating a docker image

Image

A template for running docker containers

Container

A running process

Steps

1. First Command

   docker ps

2. Create Dockerfile

3. Add .dockerignore for files to ignore (node_modules)

4. Build image

   docker build -t <image-name> .

   Example:

    docker build -t hardvan/demoapp:1.0 .

5. Run image

    docker run -p 5000:8080 hardvan/demoapp:1.0

   local:5000 -> container:8080

6. Create docker-compose.yml

7. Run docker-compose

    docker-compose up

For more details, watch this video