14. create image

02
This is the example node.js project they use, but YOU HAVE TO install express before trying
npm install express
Use
npm audit fix
if you have a problem with vulnerbilities
node src/server.js
02
Create an images by creating a file in your directory called
Dockerfile
this is a lightweight linux operating system that has node, npm, installed on your app
define the image with FROM
Get the base image from docker hub, https://hub.docker.com/_/node
FROM node:19-alpine
** 19-alpine is old but i'm gonna use it

03
Use the RUN
command to install express
since we are using it,
This is what allows us to install any dependendicies and anything after RUN
will run in the command line
FROM node:19-alpine RUN npm install express