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Installation

Docker Compose

Updated: 新版 Docker Compose 已經整合進 Docker 核心程式

安裝方式

sudo apt-get install docker-compose-plugin

使用方式

docker compose version

The latest download: https://docs.docker.com/compose/install/

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

# If you can't run the command, creating a symblic link as follows.
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

docker-compose --version
ARM64 Linux
# Download: https://github.com/docker/compose/releases
sudo curl -L --fail https://github.com/docker/compose/releases/download/v2.2.3/docker-compose-linux-aarch64 -o /usr/local/bin/docker-compose
sudo chmod 0755 /usr/local/bin/docker-compose

Docker

Latest: https://docs.docker.com/engine/install/

Ubuntu 20.04/22.04
sudo apt-get update
sudo apt-get install \
    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=$(dpkg --print-architecture) 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-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin
Debian 9/10
sudo apt-get update

sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl gnupg \
    lsb-release
    

# Add Docker's GPG key
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/docker.gpg

# Set up the repository
echo \
  "deb [arch=$(dpkg --print-architecture)] https://download.docker.com/linux/debian \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# Install Docker Engine
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

# Verify that Docker is installed correctly.
sudo dokcer version
sudo docker run hello-world
RedHat 8

RHEL 8 只有 IBM Z(s390x) 架構才有支援 Docker，如果是 x86_64 可以使用 CentOS 版本來安裝。

預設不支援 docker-ce 安裝，必須手動加上套件庫位址

系統更新 (需有訂閱並完成註冊 RHN)

dnf update

手動新增 docker-ce 套件庫位址

編輯 /etc/yum.repos.d/docker-ce.repo

[docker-ce-stable]
name=Docker CE Stable - $basearch
baseurl=https://download.docker.com/linux/centos/$releasever/$basearch/stable
enabled=1
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

或直接執行

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

更新 docker-ce 相依性套件

dnf update

TIP: 如果遇到一些套件相依性的錯誤，執行下一步的移除衝突套件後，再執行一次 dnf update。

移除不用的衝突套件

dnf remove podman buildah

安裝 docker-ce

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

啟動與自動啟動

systemctl start docker.service
systemctl enable docker.service

檢查 docker 版本

[root@mydocker ~]# docker version
Client: Docker Engine - Community
 Version:           20.10.14
 API version:       1.41
 Go version:        go1.16.15
 Git commit:        a224086
 Built:             Thu Mar 24 01:47:44 2022
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          20.10.14
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.16.15
  Git commit:       87a90dc
  Built:            Thu Mar 24 01:46:10 2022
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.5.11
  GitCommit:        3df54a852345ae127d1fa3092b95168e4a88e2f8
 runc:
  Version:          1.0.3
  GitCommit:        v1.0.3-0-gf46b6ba
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

[Optional] non-root 用戶帳戶

usermod -aG docker $USER
Raspberry Pi OS
curl -fsSL https://get.docker.com -o get-docker.sh
sudo sh get-docker.sh
sudo usermod -aG docker Pi
docker version
docker info
docker run hello-world

Rootless Mode

Ubuntu 22.04

Stop system-wide Docker daemon

sudo systemctl disable --now docker.service docker.socket

Install

sudo apt-get install docker-ce-rootless-extras uidmap
dockerd-rootless-setuptool.sh install
docker info

Optional: Configure the systemd

systemctl --user start docker
systemctl --user enable docker
sudo loginctl enable-linger $(whoami)
  • The socket path is set to $XDG_RUNTIME_DIR/docker.sock by default. $XDG_RUNTIME_DIR is typically set to /run/user/$UID.
  • The data dir is set to ~/.local/share/docker by default. The data dir should not be on NFS.
  • The daemon config dir is set to ~/.config/docker by default. This directory is different from ~/.docker that is used by the client.

Optional: Client

# Optional #1: with socket path
export DOCKER_HOST=unix://$XDG_RUNTIME_DIR/docker.sock
docker run -d -p 8080:80 nginx
# Optional #2: with CLI context
docker context use rootless
docker run -d -p 8080:80 nginx

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