commands

Or use .yaml file directly

create docker

network docker network create mongo-network

start mongodb

docker run -d
-p 27017:27017 \ -e MONGO_INITDB_ROOT_USERNAME=admin
-e MONGO_INITDB_ROOT_PASSWORD=password \ --net mongo-network
--name mongodb
mongo

start mongo-express

docker run -d
-p 8081:8081
-e ME_CONFIG_MONGODB_ADMINUSERNAME=admin
-e ME_CONFIG_MONGODB_ADMINPASSWORD=password
-e ME_CONFIG_MONGODB_SERVER=mongodb
--net mongo-network
--name mongo-express
mongo-express

Create image of your APP

Before creating image check that your image has right database link, for more info check server.js

To build a docker image from the application

sudo docker build -t docker-first:1.0 .       

The dot "." at the end of the command denotes location of the Dockerfile.

YAML File

first we have to write file manually and check weather the info of docker first in .yaml is imported from image created not from the aws docker repository

docker-first:
    image: docker-first:1.0
    ports:
    - 3000:3000

run command

sudo docker-compose -f docker-compose.yaml up -d

sudo docker-compose -f docker-compose.yaml down

Mongo

mongo express is up on:

http://localhost:8080/

Push Image to DockerHub Repository

First create a DockerHub repository and use it's link to to push your image to the repository
Also check docker login

sudo docker login

After creating repository create a tag and commit for the push

sudo docker tag docker-first:1.0 sandhu0sahil/sandhu:1.0

Now push the image to the repository

sudo docker push sandhu0sahil/sandhu:tagname

Now instead of creating your own image you can pull the image directly and run it without having the code of the whole program

sudo docker pull sandhu0sahil/sandhu:1.0

Also change this in .yaml file

docker-first:
    image: sandhu0sahil/sandhu:1.0
    ports:
    - 3000:3000

after this you only need .yaml file to run the app not the whole source code