리피아드의 잡동사니

1. yum

- yum utils설치 안 되어 있을 수 있으니, 설치

sudo yum install -y yum-utils

- 혹시 모르니 selinux, swap off

#selinux off
sudo setenforce 0
sudo sed -i 's/^SELINUX=.*/SELINUX=permissive/g' /etc/selinux/config

#swap off
sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
sudo swapoff -a

- repo 등록

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

- 설치

sudo yum -y install docker-ce docker-ce-cli containerd.io

- 실행

sudo systemctl start docker
sudo systemctl enable docker

- 설정

sudo vi /etc/docker/daemon.json

---
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m",
    "max-file": "1"
  },
  "storage-driver": "overlay2"
}
---

sudo systemctl restart docker

- docker compose plugin 설치

sudo yum -y install docker-compose-plugin

2. dnf

- repo 등록을 위한 dnf-plugins-core 설치

sudo dnf -y install dnf-plugins-core

- repo 등록

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

- 혹시 모르니 selinux, swap off

#selinux off
sudo setenforce 0
sudo sed -i 's/^SELINUX=.*/SELINUX=permissive/g' /etc/selinux/config

#swap off
sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
sudo swapoff -a

- 설치

sudo dnf install -y docker-ce docker-ce-cli containerd.io

- 실행

sudo systemctl start docker
sudo systemctl enable docker

- 설정

sudo vi /etc/docker/daemon.json

---
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m",
    "max-file": "1"
  },
  "storage-driver": "overlay2"
}
---

sudo systemctl restart docker

- docker compose plugin 설치

sudo dnf -y install docker-compose-plugin

• Linux Signal Num

$ sudo apt-get install -y  apt-transport-https ca-certificates curl gnupg lsb-release
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
$ echo "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
$ sudo apt update
$ sudo apt -y install docker-ce
$ sudo systemctl start docker | sudo systemctl enable docker

$ sudo vi /etc/docker/daemon.json
---
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m",
    "max-file": "1"
  },
  "storage-driver": "overlay2"
}
---
$ sudo systemctl daemon-reload
$ sudo systemctl restart docker

18.06.2ce에서는 로그 크기 이슈가 없었으나.. 19.03ce에서는 발생해서 쓰고 있는 옵션입니다.

cgroupdriver의 경우 기본값인 cgroupfs를 사용하게 되면 램누수가 발생할 수 있다고 하네요.

(저는 겪어본적 없습니다.)

필요시 sudo usermod -aG docker $USER

출처 : https://kubernetes.io/ko/docs/setup/production-environment/container-runtimes/