问题描述
我无法将当天的消息显示在我的流浪汉框中，我想知道为什么。
我created a gist for a reproducible example here（其中包含Vagrantfile和playbook.yml个文件）。
这是我的Vagrantfile：
Vagrant.require_version ">= 2.2.3"
Vagrant.configure("2") do |config|
config.vm.provider "virtualBox" do |v|
v.memory = 2048
v.cpus = 2
end
config.vm.Box = "ubuntu/bionic64"
config.vm.hostname = "cli-tools"
config.vm.provision "ansible",type: "ansible" do |ansible|
ansible.playbook = "playbook.yml"
end
config.ssh.extra_args = ["-t","zsh; cd /home/vagrant"]
config.ssh.forward_x11 = true
end
我为我的盒子设置了ansible，在那里我还创建了/etc/update-motd.d/01-custom文件。
第一行是#!/bin/sh。
最后一行是exit 0。
运行sudo run-parts /etc/update-motd.d/ > /dev/null不会显示任何内容（按预期）。
与其他脚本一样设置权限：
vagrant:~/ $ ls -la /etc/update-motd.d/
total 64
drwxr-xr-x 2 root root 4096 Aug 20 09:14 .
drwxr-xr-x 97 root root 4096 Aug 20 08:16 ..
-rwxr-xr-x 1 root root 1220 Apr 9 2018 00-header
-rwxr-xr-x 1 root root 2387 Aug 20 09:14 01-custom
我的/etc/ssh/sshd_config包含以下设置：
...
UsePAM yes
#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
X11Forwarding yes
#X11displayOffset 10
#X11UseLocalhost yes
#PermitTTY yes
PrintMotd yes
...
/etc/pam.d/sshd中的小球配置：
...
# Print the message of the day upon successful login.
# This includes a dynamically generated part from /run/motd.dynamic
# and a static (admin-editable) part from /etc/motd.
session optional pam_motd.so motd=/run/motd.dynamic
session optional pam_motd.so noupdate
...
这里是playbook.yml
- hosts: all
tasks:
- name: Update apt cache
apt:
update_cache: yes
become: yes
- name: Install zsh
apt:
name: zsh
state: present
become: yes
- name: Check current shell
shell: if echo $0 = "zsh" ; then echo "true"; else echo "false"; fi
register: zsh
- name: Change default shell to zsh
shell: 'sudo chsh -s /bin/zsh vagrant'
when: zsh.stdout == "false"
- name: Check if Oh My Zsh is already installed
shell: '[ -d "/home/vagrant/.oh-my-zsh" ] && echo "true" || echo "false"'
register: ohmyzsh_present
- name: Install Oh My Zsh (it can take several minutes to complete)
shell: 'sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended'
when: ohmyzsh_present.stdout == "false"
- name: Check that the message of the day (motd) file.conf exists
stat:
path: /etc/update-motd.d/01-custom
register: motd_custom
- name: Create the message of the day (motd) file,if it doesnt exist already (/etc/update-motd.d/01-custom)
file:
path: /etc/update-motd.d/01-custom
state: touch
mode: 0755
owner: root
group: root
become: yes
become_user: root
when: not motd_custom.stat.exists
- name: Set message of the day (motd)
blockinfile:
path: /etc/update-motd.d/01-custom
marker: ''
block: |
#!/bin/sh
# System Overview
echo "\033[33;1m\nSystem Overview\n\033[0m"
/usr/bin/landscape-sysinfo
# System Updates
echo "\033[33;1m\nSystem Updates\n\033[0m"
/usr/lib/update-notifier/apt-check --human-readable
exit 0
become: yes
become_user: root
when: not motd_custom.stat.exists
- name: Remove blank lines blockinfile put in
lineinfile :
path: /etc/update-motd.d/01-custom
state: absent
regexp: '^$'
become: yes
become_user: root
- name: update ssh config file to add the motd
shell: 'sed -i "s/.*PrintMotd.*/PrintMotd yes/g" /etc/ssh/sshd_config && sudo service ssh restart'
become: yes
become_user: root
when: not motd_custom.stat.exists
我在包装盒内使用oh-my-zsh，可能是那里的问题吗？ 从全球范围来看，我从来没有流浪汉出现过任何“伤痕”。 我在这里想念什么？
解决方法
添加motd文件（或在其中进行任何更改）后，应运行service motd-news restart或使用Ansible服务模块重新启动motd-news。
FWIW您也可以使用Ansible User模块将用户的shell设置为zsh，而不必检查当前shell是什么。这将允许您删除外壳检查任务。