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Cloud-config-auto 安装（后期命令随机主机名 + 网络配置）

tag-icon • tag-icon cloud-init
Cloud-config-auto 安装（后期命令随机主机名 + 网络配置）

我正在尝试配置该网络，它能正常工作，但当我登录操作系统时却不行。第二，我如何配置随机主机名？

感谢 ：）

#cloud-config
autoinstall:
  version: 1
  apt:
    disable_components: []
    geoip: true
    preserve_sources_list: false
    primary:
    - arches:
      - amd64
      - i386
      uri: http://archive.ubuntu.com/ubuntu
    - arches:
      - default
      uri: http://ports.ubuntu.com/ubuntu-ports
  identity:
    hostname: ${hostname}
    password: $6$tN8UBrsU5N4Tcqcz$ewAe9SRZlS2q6yxYtvyJ0u.Lu4l6pgSf5uiHpMFKjlOVTjBfuBb4QIQekfaToA1DtKAUCjoiiAEyc5VYj26uS1
    realname: scadmin
    username: scadmin
  kernel:
    package: linux-generic
  keyboard:
    layout: us
    toggle: null
    variant: ''
  locale: en_US.UTF-8
  network:
    version: 2
    renderer: networkd
    ethernets:
      ens160:
        dhcp4: true
        dhcp-identifier: mac
  ssh:
    allow-pw: true
    authorized-keys: []
    install-server: true
  storage:
    config:
    - ptable: gpt
      path: /dev/sda
      wipe: superblock-recursive
      preserve: false
      name: ''
      grub_device: true
      type: disk
      id: disk-sda
    - device: disk-sda
      size: 1048576
      flag: bios_grub
      number: 1
      preserve: false
      grub_device: false
      type: partition
      id: partition-0
    - device: disk-sda
      size: 30064771072
      wipe: superblock
      flag: ''
      number: 2
      preserve: false
      grub_device: false
      type: partition
      id: partition-1
    - name: vg0
      devices:
      - partition-1
      preserve: false
      type: lvm_volgroup
      id: lvm_volgroup-0
    - device: disk-sda
      size: 2144337920
      wipe: superblock
      flag: ''
      number: 3
      preserve: false
      grub_device: false
      type: partition
      id: partition-3
    - fstype: ext4
      volume: partition-3
      preserve: false
      type: format
      id: format-0
    - name: lv-swap
      volgroup: lvm_volgroup-0
      size: 4294967296B
      wipe: superblock
      preserve: false
      type: lvm_partition
      id: lvm_partition-0
    - name: lv-root
      volgroup: lvm_volgroup-0
      size: 25765609472B
      wipe: superblock
      preserve: false
      type: lvm_partition
      id: lvm_partition-1
    - fstype: ext4
      volume: lvm_partition-1
      preserve: false
      type: format
      id: format-3
    - path: /
      device: format-3
      type: mount
      id: mount-3
    - fstype: swap
      volume: lvm_partition-0
      preserve: false
      type: format
      id: format-4
    - path: ''
      device: format-4
      type: mount
      id: mount-4
    - path: /boot
      device: format-0
      type: mount
      id: mount-0
  updates: security
  packages:
    - open-vm-tools
  late-commands:
    - HOSTNAMEC="$(date +%N | md5sum | cut -f 1 -d " " | head -c 6 )" hostnamectl set-hostname "$HOSTNAMEC"

答案1

我正在尝试配置这个网络，它可以正常工作，但是当我登录到操作系统时却不行。

这些信息还不够。

如何配置随机主机名？

可以通过多种方式实现。以下是一些部分user-data配置，演示了一些解决方案。

这是一个early-commands解决方案，它将更新安装程序本身使用的配置。好处是主机将使用随机名称安装，并且稍后不需要由其他进程更改。

#cloud-config
autoinstall:
  identity:
    hostname: REPLACEHOSTNAME
    password: REDACTED
    realname: myuser
    username: myuser
  early-commands:
    - sed -i -e "s/REPLACEHOSTNAME/$(openssl rand -hex 3)/" /autoinstall.yaml

这是一个cloud-init配置设置主机名的解决方案cloud-init。好处是cloud-init还可以执行诸如设置 fqdn 和更新文件之类的操作/etc/hosts。

#cloud-config
autoinstall:
  identity:
    hostname: my-hostname
    password: REDACTED
    realname: myuser
    username: myuser
  late-commands:
    - |
      cat <<EOF > /target/etc/cloud/cloud.cfg.d/80_my.cfg
      hostname: $(openssl rand -hex 3)
      manage_etc_hosts: true
      preserve_hostname: false
      EOF

/etc/hostname这是在已安装的系统上进行更改的简单解决方案。

#cloud-config
autoinstall:
  identity:
    hostname: my-hostname
    password: REDACTED
    realname: myuser
    username: myuser
  late-commands:
    - echo $(openssl rand -hex 3) > /target/etc/hostname

笔记

我使用 Ubuntu 22.04 进行了测试（subiquity 22.04.2）

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