How to Install Docker in Ubuntu

2024年8月18日#Docker85

AI 生成的摘要

在Ubuntu上安裝Docker的步驟如下： 1. 移除舊版本的Docker，以避免衝突： ```bash sudo apt-get remove docker docker-engine docker.io containerd runc sudo rm -rf /var/lib/docker sudo rm -rf /var/lib/containerd ``` 2. 使用apt-get安裝Docker： - 設定repository，添加Docker的官方GPG密鑰： ```bash sudo apt-get update sudo apt-get install ca-certificates curl gnupg sudo install -m 0755 -d /etc/apt/keyrings curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg sudo chmod a+r /etc/apt/keyrings/docker.gpg ``` - 將repository添加到Apt來源： ```bash echo "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null ``` 3. 安裝Docker Engine： ```bash sudo apt-get update sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin ``` 4. 確認安裝成功： ```bash sudo docker run hello-world ```

如何在 Ubuntu 安裝 Docker，使用官方推薦方式#

移除舊版本的 Docker#

避免與原先的版本衝突，建議把原本舊安裝過的 docker 移除掉

sudo apt-get remove docker docker-engine docker.io containerd runc

手動去檢查是否完全刪除原本舊有的 docker

sudo rm -rf /var/lib/docker
sudo rm -rf /var/lib/containerd

使用 apt-get 安裝#

設定 repository#

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl gnupg
sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg

# Add the repository to Apt sources:
echo \
  "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

安裝 Docker Engine#

透過 apt-get 安裝

sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

確認是否安裝成功

sudo docker run hello-world