1. MongoDB 공개 GPG 키 가져오기 sudo apt-get install gnupg curlgnupg, curl 설치 curl -fsSL https://www.mongodb.org/static/pgp/server-7.0.asc | \ sudo gpg -o /usr/share/keyrings/mongodb-server-7.0.gpg \ --dearmor 2. Ubuntu 20.04(Focal)용 /etc/apt/sources.list.d/mongodb-org-7.0.list 파일 생성echo "deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-7.0.gpg ] https://repo.mongodb.org/apt/ubu..