安装Docker

使用 APT 安装：

什么是APT：在Linux系统中，apt（Advanced Packaging Tool）是一个软件包管理器，它能够从仓库（如Ubuntu、Debian、Fedora等）上下载并安装软件包。
添加使用 HTTPS 传输的软件包以及 CA 证书
```
$ sudo apt-get update
```

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

为了确认所下载软件包的合法性，需要添加软件源的 GPG 密钥

$ curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

官方源

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

然后，我们需要向 sources.list 中添加 Docker 软件源

$ echo \ "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://mirrors.aliyun.com/docker-ce/linux/ubuntu \ $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

官方源

$ 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


### 安装：

$ curl -fsSL get.docker.com -o get-docker.sh $ sudo sh get-docker.sh


### 测试安装是否成功：
若输出以下信息，则安装成功

$ docker run --rm hello-world

Unable to find image 'hello-world:latest' locally latest: Pulling from library/hello-world b8dfde127a29: Pull complete Digest: sha256:308866a43596e83578c7dfa15e27a73011bdd402185a84c5cd7f32a88b501a24 Status: Downloaded newer image for hello-world:latest

Hello from Docker! This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:

The Docker client contacted the Docker daemon.
The Docker daemon pulled the "hello-world" image from the Docker Hub. (amd64)
The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading.
The Docker daemon streamed that output to the Docker client, which sent it to your terminal.

To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID: https://hub.docker.com/

For more examples and ideas, visit: https://docs.docker.com/get-started/


## 安装docker-compose

// 安装 $ sudo curl -L https://github.com/docker/compose/releases/download/v2.17.0/docker-compose-`uname -s-uname -m` > /usr/local/bin/docker-compose

// 授权 $ sudo chmod +x /usr/local/bin/docker-compose

* Tips：
  - [docker-compose版本源](https://github.com/docker/compose/releases)
  - 注意下载安装指令有坑点：`uname -s`-`uname -m` 输出的是当前的系统和内核版本，当前用的为 Linux & x86_64，即输出`Linux-x86_64`，这个拼接出来的与版本源的下载地址（linux-x86_64）大小写不对，因此会安装失败。因此显式的指定下载源来解决问题。

sudo curl -L "https://github.com/docker/compose/releases/download/v2.17.0/docker-compose-linux-x86_64" -o /usr/local/bin/docker-compose


### 测试安装是否成功：

docker-compose version

caroundsky / QA

亚马逊aws EC2 配置 #14

在MobaXterm使用root用户登录

安装Docker

使用 APT 安装：

官方源

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

官方源