ubuntu-server一键配置cloud-init文件参考案例

发表于 2025-10-21 更新于 2025-10- 21

作者 Aurme

8~10 分钟 阅读

ubuntu-server一键配置cloud-init文件参考案例

查看IP

#查看IP
ip addr show
#简略版
ip -br a

Ubuntu Cloud Images - the official Ubuntu images for public clouds, Openstack, KVM and LXD

Ubuntu 24.04 LTS (Noble Numbat) release [20240423]

配置cloud-init文件

#meta-data文件内容：
instance-id: iid-local01
local-hostname: ubuntu-vm

#user-data文件内容：
#-------------------------（↓开始复制）

#cloud-config
users:
  - name: ubuntu
    sudo: ['ALL=(ALL) NOPASSWD:ALL']
    groups: sudo
    shell: /bin/bash
    plain_text_passwd: 'ubuntu'
    lock_passwd: false
    ssh_pwauth: True

chpasswd:
  expire: False

write_files:
  - path: /etc/ssh/sshd_config.d/60-cloud-init.conf
    content: |
      PasswordAuthentication yes
      PermitRootLogin no
      ChallengeResponseAuthentication no
      UsePAM yes
      AcceptEnv LANG LC_*

  - path: /etc/sudoers.d/99-cloud-init-nodns
    content: |
      Defaults !fqdn
    permissions: '0440'

runcmd:
  - systemctl restart ssh

mkisofs工具，制作ISO

mkisofs.exe -o cloud-init.iso -V cidata -r -J user-data meta-data

mkisofs.zip

qemu-img工具，转换img文件

#vmdk
qemu-img convert -f qcow2 -O vmdk input.img output.vmdk
#vhdx
qemu-img convert -f raw -O vhdx input.img output.vhdx

#vhd
qemu-img convert -f vpc -O vhdx input.vhd output.vhdx

qemu-img-win-x64-2_3_0.zip

SSH允许账号密码登录

#编辑SSH设置
sudo nano /etc/ssh/sshd_config
#修改这两项
PasswordAuthentication yes
PermitRootLogin no #开启root权限需要改成yes
#特别注意！！！在/etc/ssh/sshd_config.d/  中有一个文件（如 60-cloudimg-settings.conf）
#PasswordAuthentication no 改为 yes
cd /etc/ssh/sshd_config.d/
sudo nano /etc/ssh/sshd_config.d/60-cloudimg-settings.conf
#保存后执行
sudo systemctl restart ssh

配置代理

export http_proxy=http://127.0.0.1:7890
export https_proxy=http://127.0.0.1:7890
export all_proxy=socks5://127.0.0.1:7891

技术

AWS

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