RebeccaBakels · March 3, 2021 21:16
diff --git a/Docker b/Docker
 Allows us to deploy apps in a "container" to run elsewhere
 If it can run in Docker it will run anywhere
 Container-package an app with dependancies into a standard unit.
 Same Envinorment, sanbox projects, it just works
 Image-templates for creating an evinorment or a "Snapshot"

 Dockerfile-text file that contains a list of steps to deploy
 Dockerfile to Image to Container
 Blueprint to Snapshot to Instance

 Kubernetes used to manage Docker instances

 mkdir 'name'
 cd into 'name'
 npm init -y
 npm i express
 code .
 create src
 //////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 create index.js with basic API point in src

 const express = require('express')

 const app = express()

 app.get('/', (res, req) => {
    res.json({message: 'Docker is awesome'})
 })

 const port = process.env.PORT || 8080

 app.listen(port, () => console.log('app listenint on http://localhost:'+port))

 ///////////////////////////////////////////////////////////////////////////////////
 add to "scripts"  add "start": "node ./src"
 create .dockerignore and .gitignore and add node_modules to both

 then create Dockfile in root directory
 /////////////////////////////////////////////////////////////////
 FROM node:12-alpine3.10

 WORKDIR /src/

 COPY . .    //copies files to the root of the docker image

 RUN npm install

 ENV PORT=8080

 EXPOSE 8080

 CMD ["npm", "start"]
 ////////////////////////////////////////////////////////////////////
 on command line:
 docker.ps  //make sure no images are running
 docker build -t 'name':1.0 . //make sure your period is there so it knows to build HERE
 docker run -p 5050:8080 'image name'

 docker ps
 docker kill 'image name'
 docker run -p 5050:8080 -v C:\Users\asus\Documents\Projects\docker101\:\src\ 'name of image'
	Allows us to deploy apps in a "container" to run elsewhere
	If it can run in Docker it will run anywhere
	Container-package an app with dependancies into a standard unit.
	Same Envinorment, sanbox projects, it just works
	Image-templates for creating an evinorment or a "Snapshot"

	Dockerfile-text file that contains a list of steps to deploy
	Dockerfile to Image to Container
	Blueprint to Snapshot to Instance

	Kubernetes used to manage Docker instances

	mkdir 'name'
	cd into 'name'
	npm init -y
	npm i express
	code .
	create src
	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
	create index.js with basic API point in src

	const express = require('express')

	const app = express()

	app.get('/', (res, req) => {
	res.json({message: 'Docker is awesome'})
	})

	const port = process.env.PORT \|\| 8080

	app.listen(port, () => console.log('app listenint on http://localhost:'+port))

	///////////////////////////////////////////////////////////////////////////////////
	add to "scripts" add "start": "node ./src"
	create .dockerignore and .gitignore and add node_modules to both

	then create Dockfile in root directory
	/////////////////////////////////////////////////////////////////
	FROM node:12-alpine3.10

	WORKDIR /src/

	COPY . . //copies files to the root of the docker image

	RUN npm install

	ENV PORT=8080

	EXPOSE 8080

	CMD ["npm", "start"]
	////////////////////////////////////////////////////////////////////
	on command line:
	docker.ps //make sure no images are running
	docker build -t 'name':1.0 . //make sure your period is there so it knows to build HERE
	docker run -p 5050:8080 'image name'

	docker ps
	docker kill 'image name'
	docker run -p 5050:8080 -v C:\Users\asus\Documents\Projects\docker101\:\src\ 'name of image'