EC2에서 도커/쿠버네티스 설치하기 (k3s)

JSCODE 박재성

2025-12-06

✅ 설치 추천 사양

Requirements | K3s

K3s is very lightweight, but has some minimum requirements as outlined below.

https://docs.k3s.io/kr/installation/requirements

✅ EC2 인스턴스 생성하기

✅ Docker 설치하기

1. 설치하기

$ sudo apt-get update && \
	sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common && \
	curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - && \
	sudo apt-key fingerprint 0EBFCD88 && \
	sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" && \
	sudo apt-get update && \
	sudo apt-get install -y docker-ce && \
	sudo usermod -aG docker ubuntu && \
	newgrp docker && \
	sudo curl -L "https://github.com/docker/compose/releases/download/2.27.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose && \
	sudo chmod +x /usr/local/bin/docker-compose && \
	sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

 

2. 잘 설치됐는 지 확인하기

$ docker -v # Docker 버전 확인
$ docker compose version # Docker Compose 버전 확인

✅ k3s 설치하기

$ curl -sfL https://get.k3s.io | sh - # k3s 설치
$ sudo chmod 644 /etc/rancher/k3s/k3s.yaml # 권한 부여
$ sudo kubectl version # k3s 잘 설치됐는 지 확인