Linux Docker 설치

계정 셋팅

useradd docker

passwd docker

vi /etc/sudoers

# 'docker ALL=(ALL) ALL' 추가

su docker

docker 설치

https://niceman.tistory.com/36

[Docker] CentOS 7 - Docker 설치 및 실행 방법

yum -y update

yum -y install docker docker-registry

systemctl enable docker.service

systemctl start docker.service

systemctl status docker.service

docker-compose 설치

https://docs.docker.com/compose/install/

Install Docker Compose

sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/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
docker-compose --version

unknown flag: --iidfile

docker-compose build 수행시 에러 발생

# 다운그레이드 필요 : root로 실행해야 함(sudo로는 permission 에러 발생) -> 이 방법으로 하면 다른 문제 생김

rm -f /usr/local/bin/docker-compose
curl -L "https://github.com/docker/compose/releases/download/1.26.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose && chmod +x /usr/local/bin/docker-compose
docker-compose --version

# 근본적으로 docker 버전이 낮아서 생긴 문제 : docker -> docker-ce로 변경 필요

docker -v

Docker version 1.13.1, build 7d71120/1.13.1

https://ikcoo.tistory.com/69

09. Docker Version Update

docker stop 컨테이너명 : 나중에 'docker start 컨테이너명'이 작동하지 않아서 'docker rm 컨테이너명'으로 삭제함

yum remove -y docker-common

yum install -y yum-utils device-mapper-persistent-data lvm2

yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

yum list docker-ce --showduplicates | sort -r

yum install -y docker-ce

systemctl start docker

systemctl start enable docker.service

docker -v

Docker version 20.10.12, build e91ed57

docker swarm 셋팅

docker swarm init

# worker 등록을 위한 정보 확인

docker swarm join-tocken worker

# worker 등록

docker swarm join --tocken 토큰 manager서버IP:포트

# manager서버 포트가 안 열려 있으면 아래 에러 발생

Error response from daemon: rpc error: code = 14 desc = grpc: the connection is unavailable

manager서버에서 방화벽 오픈 필요