Update the apt package index and install packages to allow apt to use repositories over https

sudo apt-get update  
sudo apt-get install ca-certificates curl gnupg

Add Docker’s official gpg key

$ sudo install -m 0755 -d /etc/apt/keyrings
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
$ sudo chmod a+r /etc/apt/keyrings/docker.gpg

Use the below command to setup repository

$ echo \
  "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Install Docker Engine

Update the apt index

$ sudo apt-get update

Install Docker Engine, Containerd and Docker Compose

$ sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Verify the Docker Engine installation by running

$ sudo docker run hello-world

Get basic fastapi repo

$ https://github.com/ChaitanyaVardhan/fastapi-demo.git

Setup NGINX

$ sudo apt-get install nginx

$ sudo vi /etc/nginx/sites-enabled/fastapi-demo

Paste the below code and replace PUBLIC_IP with the ec2 public ip:

server {
    listen 80;
    server_name <PUBLIC_IP>;
    location / {
        proxy_pass http://127.0.0.1:8000;
    }
}

Restart NGINX and check its status:

$ sudo service nginx restart
$ sudo service nginx status

Start Docker container

start the docker container in detached mode after cd into repo

$ sudo docker compose up -d