Multipass

管理多ubuntu实例，进行模拟分布式、网络编程实验

Install https://canonical.com/multipass/install Document : https://documentation.ubuntu.com/multipass/latest/

Launch an instance (by default you get the current Ubuntu LTS):
bash
```
multipass launch --name foo
```
Run commands in that instance, try running bash (logout or ctrl-d to quit):
bash
```
multipass exec foo -- lsb_release -a
```
See your instances:
bash
```
multipass list
```

Stop and start instances:

bash

multipass stop foo bar

bash

multipass start foo

Clean up what you don't need:
bash
```
multipass delete bar
```
bash
```
multipass purge
```
Find alternate images to launch:
bash
```
multipass find
```
Pass a cloud-init metadata file to an instance on launch. (See Using cloud-init with Multipass for more details):
bash
```
multipass launch -n bar --cloud-init cloud-config.yaml
```
Get help:
bash
```
multipass help
```
bash
```
multipass help <command>
```

示例

bash

multipass networks  //查看物理网卡

$ Name   Type   Description
$ WLAN   wifi   Intel(R) Wi-Fi 6 AX201 160MHz

bash

multipass launch 25.04 --name u25-node1 --network WLAN
multipass launch 25.04 --name u25-node1 --cpus 1 --memory 2G --disk 10G --network WLAN
//指定镜像版本号，实例名称，网卡

SSH 连接 Multipass Ubuntu实例

默认无初始化账密登录，使用公钥登录

查询已有公钥

bash

multipass exec u25-node2 -- cat /home/ubuntu/.ssh/authorized_keys

写入本机公钥

bash

//查询本机公钥
type %USERPROFILE%\.ssh\id_ed25519.pub 
//写入公钥
multipass exec u25-node2 -- bash -c "echo '<具体公钥>' >> /home/ubuntu/.ssh/authorized_keys" 

//更新权限
multipass exec u25-node2 -- sudo chown ubuntu:ubuntu /home/ubuntu/.ssh/authorized_keys

multipass exec u25-node2 -- sudo chmod 600 /home/ubuntu/.ssh/authorized_keys

Visual Studio Code ssh 配置

json

Host u25-node2
  HostName 192.168.1.6
  User ubuntu

Multipass ​

示例 ​

SSH 连接 Multipass Ubuntu实例 ​

Multipass

示例

SSH 连接 Multipass Ubuntu实例