upgrade docker to docker-ce

https://docs.docker.com/install/linux/docker-ce/centos/docs.docker.com

여기서 다 알려주지만 정리해보자

Devian Linux 깐게 아닌가? 왜 Centos 일까 잘모르겟다.

cat /etc/os-release
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"

호옹이!!! 아무튼.. 도커를 지워주자

yum info *docker* #아래 나오는 패키지들 다 삭제
yum erase [docker packages]

#뭔지 몰라 그냥 깔
yum install -y yum-utils
yum install -y device-mapper-persistent-data
yum install -y lvm2
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum install docker-ce docker-ce-cli containerd.io

systemctl start docker