Judge0-setup-on-AWS Step-by-Step guide

• Create AWS account with email etc and credit card details as root user

• Login into your account

• From top-right corner username drop-down click on Your AWS Console

• In AWS services click on EC2 which will redirect us to EC2 Management Dashboard

• On the side-navbar open drop-down list of Instances and open Instances option from there

• Enter a name for the instance

• In Application and OS Images (Amazon Machine Image) click on Quick Start tab and choose Ubuntu machine

• Choose an instance type (recommended is t2.medium)

• In key-pair (login) tab click on Create new key pair which will redirect to key-pair generation form

• Fill a key-pair name choose key-pair type as RSA and Private key file format can be chosen as .pem

• Clicking on Create key pair will download a .pem file

• In Network settings tick all square boxes namely Allow SSH traffic from (choose Anywhere from the dropdown), Allow HTTPs traffic from the internet, Allow HTTP traffic from the internet

• In Configuration Storage choose volume (recommended 32GiB) gp2 root volume

• Advanced details should be kept as it is

• Click on Launch instance

• After successful launch click on View All Instances and refresh the page to see you new instance

• Wait for some time for the Status check to show 2/2 checks passed or refresh after some time

• Click on instance id and then click on Connect which redirects to Connect to instance section

• Click on SSH client tab

• Open Ubuntu terminal and jump into the directory where private key file(.pem file) is present (by default in Downloads folder)

• Copy and run the command similar to chmod 400 <private key file name> from the SSH client tab section

• Copy the command similar to this ssh -i <private key filename> ubuntu@ec2-<some-ip-address>.compute-1.amazonaws.com

• Copy the command similar to this "ssh -i ubuntu@ec2-.compute-1.amazonaws.com". Add sudo before ssh to make it sudo ssh -i <private key filename> ubuntu@ec2-<some-ip-address>.compute-1.amazonaws.com to avoid any permissions issue

• Now you are connected to the machine whose Ip address would be visible on Ubuntu terminal

  Run the following commands to setup Docker

  • sudo apt update

  • sudo apt install apt-transport-https ca-certificates curl software-properties-common

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

  • sudo add-apt-repository "deb [arch=amd64]

  • https://download.docker.com/linux/ubuntu focal stable"

  • apt-cache policy docker-ce

  • sudo apt install docker-ce

  • sudo systemctl status docker

  • sudo usermod -aG docker ${USER}

  • sudo docker ps

  • sudo chmod 666 /var/run/docker.sock

  • docker ps

  • sudo systemctl status docker

  • mkdir -p ~/.docker/cli-plugins/

  • curl -SL https://github.com/docker/compose/releases/download/v2.2.3/docker-compose-linux-x86_64 -o ~/.docker/cli-plugins/docker-compose

  • chmod +x ~/.docker/cli-plugins/docker-compose

  • docker compose version

  • cd ~/.docker/cli-plugins

  Run the following commands to setup Judge0

  • wget https://github.com/judge0/judge0/releases/download/v1.13.0/judge0-v1.13.0-https.zip

  • sudo apt install unzip

  • unzip judge0-v1.13.0-https.zip

  • cd judge0-v1.13.0-https/

  • nano docker-compose.yml

  • Edit using arrow keys the virtual_host as the ip-address (shown in Views instances in aws under Public IP v4 address ), letsancrypt_host also with the same ip-address and an email id under letsencrypt-email

  • Enter Ctrl+O then ENTER then Ctrl+X

  • sudo apt install docker-compose

  • docker-compose up -d db redis

  • sleep 10s

  • docker-compose up -d

  • sleep 5s

Whoa!!! your setup is done

Use the ip-address instead of judge0 to get the desired results or check with some get request at the ip-address/system_info