华为私有云HCS810中Ubuntu镜像分发ECS不能修改主机名问题

背景：HCS810   Ubuntu操作系统无法自定主机名，cloud-init和UVP-tools安装完成

#vim /etc/cloud/cloud.cfg

参数preserve_hostname: true 修改成true

然后把这两行注释"set_name"和"update_hostname"

# The top level settings are used as module
# and system configuration.
# A set of users which may be applied and/or used by various modules
# when a 'default' entry is found it will reference the 'default_user'
# from the distro configuration specified below
users:
   - default


# If this is set, 'root' will not be able to ssh in and they
# will get a message to login instead as the default $user
disable_root: true

# This will cause the set+update hostname module to not operate (if true)
preserve_hostname: true

# If you use datasource_list array, keep array items in a single line.
# If you use multi line array, ds-identify script won't read array items.
# Example datasource config
# datasource:
#    Ec2:
#      metadata_urls: [ 'blah.com' ]
#      timeout: 5 # (defaults to 50 seconds)
#      max_wait: 10 # (defaults to 120 seconds)



# The modules that run in the 'init' stage
cloud_init_modules:
 - migrator
 - seed_random
 - bootcmd
 - write-files
 - growpart
 - resizefs
 - disk_setup
 - mounts
 #- set_hostname
 #- update_hostname
 - update_etc_hosts
 - ca-certs
 - rsyslog
 - users-groups
 - ssh

# The modules that run in the 'config' stage
cloud_config_modules:
# Emit the cloud config ready event
# this can be used by upstart jobs for 'start on cloud-config'.
 - emit_upstart
 - snap
 - ssh-import-id
 - locale
 - set-passwords
 - grub-dpkg
 - apt-pipelining
 - apt-configure
 - ubuntu-advantage
 - ntp
 - timezone
 - disable-ec2-metadata
 - runcmd
 - byobu

# The modules that run in the 'final' stage
cloud_final_modules:
 - package-update-upgrade-install
 - fan
 - landscape
 - lxd
 - ubuntu-drivers
 - write-files-deferred
 - puppet
 - chef
 - mcollective
 - salt-minion
 - reset_rmc
 - refresh_rmc_and_interface
 - rightscale_userdata
 - scripts-vendor
 - scripts-per-once
 - scripts-per-boot
 - scripts-per-instance
 - scripts-user
 - ssh-authkey-fingerprints
 - keys-to-console
 - install-hotplug
 - phone-home
 - final-message
 - power-state-change

# System and/or distro specific settings
# (not accessible to handlers/transforms)
system_info:
   # This will affect which distro class gets used
   distro: ubuntu
   # Default user name + that default users groups (if added/used)
   default_user:
     name: ubuntu
     lock_passwd: True
     gecos: Ubuntu
     groups: [adm, audio, cdrom, dialout, dip, floppy, lxd, netdev, plugdev, sudo, video]
     sudo: ["ALL=(ALL) NOPASSWD:ALL"]
     shell: /bin/bash
   # Automatically discover the best ntp_client
   ntp_client: auto
   # Other config here will be given to the distro class and/or path classes
   paths:
      cloud_dir: /var/lib/cloud/
      templates_dir: /etc/cloud/templates/
      upstart_dir: /etc/init/
   package_mirrors:
     - arches: [i386, amd64]
       failsafe:
         primary: http://archive.ubuntu.com/ubuntu
         security: http://security.ubuntu.com/ubuntu
       search:
         primary:
           - http://%(ec2_region)s.ec2.archive.ubuntu.com/ubuntu/
           - http://%(availability_zone)s.clouds.archive.ubuntu.com/ubuntu/
           - http://%(region)s.clouds.archive.ubuntu.com/ubuntu/
         security: []
     - arches: [arm64, armel, armhf]
       failsafe:
         primary: http://ports.ubuntu.com/ubuntu-ports
         security: http://ports.ubuntu.com/ubuntu-ports
       search:
         primary:
           - http://%(ec2_region)s.ec2.ports.ubuntu.com/ubuntu-ports/
           - http://%(availability_zone)s.clouds.ports.ubuntu.com/ubuntu-ports/
           - http://%(region)s.clouds.ports.ubuntu.com/ubuntu-ports/
         security: []
     - arches: [default]
       failsafe:
         primary: http://ports.ubuntu.com/ubuntu-ports
         security: http://ports.ubuntu.com/ubuntu-ports
   ssh_svcname: ssh

 

然后执行

虚拟机内执行rm -rf /var/lib/cloud/*和rm -f /var/log/cloud-init* (高危操作 切勿在生产镜像虚拟机中直接执行，要先进行测试没问题后再进行生产环境的动作)

#rm -rf /var/lib/cloud/*
#rm -f /var/log/cloud-init*

不需要重装cloud-init，关机转成镜像后测试。

 

#vim /etc/cloud/cloud.cfg配置禁止cloud-init接管网络

在最后一行添加

network:

　 config: disabled

删除/etc/cloud/cloud.cfg.d/目录下除了log相关的配置文件外的所有文件

至此问题并没有解决；

然后重新搞了一台新的镜像虚拟机

调整配置：

1、rm -rf /var/lib/cloud/*

2、rm -f /var/log/cloud-init*

3、删除/etc/cloud/cloud.cfg.d/目录下除了log相关的配置文件外的所有文件

4、vim /etc/cloud/cloud.cfg配置禁止cloud-init接管网络（可选）

　#vim /etc/cloud/cloud.cfg配置禁止cloud-init接管网络

　　在最后一行添加

network:

　 config: disabled

然后制作镜像，成了 主机名能够自定义识别了。