How to run docker

step 1: Create a directory for our tutorial

mkdir docker-mysql-nodejs

step 2: Build the image with Dockerfile.

 docker build -t mysql_nodejs .

step 3: Run the newly created docker image as container

docker run  -p 8080:8080 --name mysql_nodejs -e MYSQL_ROOT_PASSWORD=secret mysql_nodejs

step 4: Execute the container

docker exec -it mysql_nodejs bash