In this article, We are going to cover Creating ECR Repository in AWS, push Docker Image to AWS ECR, Install AWS CLI on Ubuntu

Prerequisites

• Ubuntu 16/18/20.04 LTS
• SSH access with sudo privileges
• Firewall Port: 3000

Install Node JS and NPM on Ubuntu

If you are using Ubuntu OS then Install Node JS and NPM on Ubuntu using below articles

How to Install Node.js and NPM on Ubuntu 20.04 LTS

How to Install Latest Node.js and NPM on Ubuntu 19.04,18.04/16.04 LTS

If you are using other OS then follow Node JS Official Site to Install if not installed

Step #1: Creating Node.js Application

Lets create the directory named nodejsdocker to add node js files to test.

sudo mkdir nodejsdocker

Navigate to nodejsdocker directory

cd nodejsdocker

Create the package.json file where you will specify all dependencies of your Node JS application

sudo nano package.json

paste the below lines into it

{
  "name": "Docker_NodeJS_App",
  "version": "0.1",
  "description": "Node.js Application with Docker",
  "main": "server.js",
  "scripts": {
    "start": "node server.js"
  },
  "dependencies": {
    "express": "^4.17.1"
  }
}

Next create the server.js page to test Node JS application with express framework

sudo nano server.js

Paste the below lines in it

'use strict';

const express = require('express');

// Constants
const PORT = 3000;
const HOST = '0.0.0.0';


const app = express();
app.get('/', (req, res) => {
res.send('Testing Node JS Application');
});

app.listen(PORT, HOST);
console.log(`Running on http://${HOST}:${PORT}`);

create a .dockerignore file and paste the below lines

sudo nano .dockerignore

node_modules
npm-debug.log

Step #2: Install Docker and Create Docker Image

Install below prerequisite packages

sudo apt-get install apt-transport-https ca-certificates curl gnupg-agent software-properties-common

Add below Docker’s official GPG key:

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

Add the Docker APT repository to your system

sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

Update the Docker Repository Information

sudo apt-get update

Install Docker on Ubuntu

sudo apt-get install docker-ce

Once installed verify Docker Service status

sudo systemctl status docker

Output:

docker.service - Docker Application Container Engine

Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)

Active: active (running) since Sun 2020-03-22 07:43:44 UTC; 32s ago

Docs: https://docs.docker.com

Main PID: 118265 (dockerd)

Tasks: 10

CGroup: /system.slice/docker.service

└─118265 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

Running Docker commands without sudo

By default, Docker requires administrator privileges, Docker group is created when during the installation of Docker packages.

Add your system user to docker group.

sudo usermod -aG docker $USER

Change the docker.sock permission

sudo chmod 666 /var/run/docker.sock

Next create the Dockerfile with below command in Project root directory

sudo nano Dockerfile

Paste the below Dockerfile instructions in it

FROM node:12

# To Create nodejsapp directory
WORKDIR /nodejsapp

# To Install All dependencies

COPY package*.json ./

RUN npm install

# To copy all application packages 
COPY . .

# Expose port 3000 and Run the server.js file to start node js application
EXPOSE 3000
CMD [ "node", "server.js" ]

Now build the Docker Image using below command

sudo docker build -t nodejsdocker .

Step #3: Install AWS CLI on Ubuntu

Download the aws cli bundle using below command

 sudo curl https://s3.amazonaws.com/aws-cli/awscli-bundle.zip -o awscli-bundle.zip 

Install the unzip and python on Ubuntu if not installed

 sudo apt install unzip python

Extract the aws cli bundle setup

 sudo unzip awscli-bundle.zip 

Configure the AWS CLI on Ubuntu

sudo ./awscli-bundle/install -i /usr/local/aws -b /usr/local/bin/aws

Verify the AWS CLI version

aws --version

Output:

aws-cli/1.18.97 Python/2.7.18rc1 Linux/5.4.0-1015-aws botocore/1.17.20

Configure AWS CLI with your Access Key ID,  Secret Access  key and region

aws configure

Step #4: Creating ECR Repository in AWS

Login to AWS console

Find the AWS Elastic Container Registry Service as shown below and Click on Elastic Container Registry

Click on Create repository

Enter the name of your ECR Name and click on Create repository.

once created, you will see below message and click on View push commands.

you will see below push commands

Step #5: push Docker Image to AWS ECR

Build node js docker Image using below command

docker build -t nodejsdocker .

Output:

Sending build context to Docker daemon   5.12kB
Step 1/7 : FROM node:12
12: Pulling from library/node
0400ac8f7460: Pull complete
fa8559aa5ebb: Pull complete
da32bfbbc3ba: Pull complete
e1dc6725529d: Pull complete
572866ab72a6: Pull complete
63ee7d0b743d: Pull complete
f324c5002e7c: Pull complete
31b678b0b485: Pull complete
6fde07dc44ee: Pull complete
Digest: sha256:b7aa57bb141b7adca179797a88f6dc350603124f9a88e4d78d9a67d0ad129350
Status: Downloaded newer image for node:12
 ---> 1f560ce4ce7e
Step 2/7 : WORKDIR /usr/src/app
 ---> Running in d3dac97c135e
Removing intermediate container d3dac97c135e
 ---> adf7d202e8db
Step 3/7 : COPY package*.json ./
 ---> 9c5d51a2a102
Step 4/7 : RUN npm install
 ---> Running in 85edb2881d24
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN [email protected] No repository field.
npm WARN [email protected] No license field.

added 50 packages from 37 contributors and audited 50 packages in 2.33s
found 0 vulnerabilities

Removing intermediate container 85edb2881d24
 ---> 6a7e04c7aa83
Step 5/7 : COPY . .
 ---> 60434160ee0f
Step 6/7 : EXPOSE 3000
 ---> Running in 7fc84e3e8930
Removing intermediate container 7fc84e3e8930
 ---> fc991e89496d
Step 7/7 : CMD [ "node", "server.js" ]
 ---> Running in aae14b412c5d
Removing intermediate container aae14b412c5d
 ---> d63e42554b69
Successfully built d63e42554b69
Successfully tagged nodejsdocker:latest

Error: “no basic auth credentials” message while pushing docker image to AWS ECR

OR

denied: Your authorization token has expired. Reauthenticate and try again.

Solution:

Login to AWS ECR using below command

$(aws ecr get-login --no-include-email --region ap-south-1)

Output:

WARNING! Using --password via the CLI is insecure. Use --password-stdin.
WARNING! Your password will be stored unencrypted in /home/ubuntu/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded

Tag the Docker Image using below command

docker tag nodejsdocker:latest 908198849120.dkr.ecr.ap-south-1.amazonaws.com/nodejsdocker:latest

push Docker Image to AWS ECR using below command

docker push 908198849120.dkr.ecr.ap-south-1.amazonaws.com/nodejsdocker:latest

Output:

The push refers to repository [908198849120.dkr.ecr.ap-south-1.amazonaws.com/nodejsdocker]
724e8b3bebbb: Pushed
9d59d5d1d8e1: Pushed
b3cdfc5ce000: Pushed
609e2d139445: Pushed
19571ff21ce3: Pushed
679834dd79ff: Pushed
0b6541f04a0d: Pushed
8211c12c1c23: Pushed
1d3ec06e3d4f: Pushed
9e5330403dba: Pushed
8bd20dc0b7e5: Pushed
94b70b410c2a: Pushed
3567db1eb737: Pushed
latest: digest: sha256:83f43c6da0803706086e95dc240d4f3cc86f9c4e714ce6ad358f87bf3b78d4e7 size: 3047

successfully pushed Docker Image to AWS ECR, login AWS ECR to check the Docker Image

We have covered, How to push Docker Image to AWS ECR

Conclusion

We have covered, Creating Node.js Application, Install Docker on Ubuntu using APT Repo, Install AWS CLI on Ubuntu, Creating ECR Repository in AWS, push Docker Image to AWS ECR.

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