EC2 guide for minimize cost

1. swap memory

sudo fallocate -l 2G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab

2. Install Docker & Docker Compose

sudo apt update && sudo apt install -y docker.io docker-compose-v2
sudo usermod -aG docker ubuntu

3. Install Git

sudo apt install -y git

4. check

free -h          # Swap이 2G로 잡혀있는지 확인
docker --version # Docker 설치 확인
git --version    # Git 설치 확인