常见问题

# Unable to restart service sshd: Failed to restart sshd.service: Connection timed out\nSee system logs and 'systemctl status sshd.service' for details.
# Unable to restart service sshd: Failed to restart sshd.service: Method call timed out\nSee system logs and 'systemctl status sshd.service' for details.
# 要注意给 handlers 添加 become: true
handlers:
- name: restart ssh
  become: true
  service:
    name: sshd
    state: restarted

# sudo: must be setuid root
chown root:root /usr/bin/sudo
chmod 4755 /usr/bin/sudo

# 检查 IP 是否在某个组里面
# when: inventory_hostname in groups["<group name>"]
when: inventory_hostname in groups["appservers"]

# 磁盘单位
kibibyte (k or KiB) - 1024 bytes
kilobyte (K or KB) - 1000 bytes
mebibyte (m or MiB) - 1024 kibibytes
megabyte (M or MB) - 1000 kilobytes
gibibyte (g or GiB) - 1024 mebibytes
gigabyte (G or GB) - 1000 megabytes
tebibyte (t or TiB) - 1024 gibibytes
terabyte (T or TB) - 1000 gigabytes
pibibyte (p or PiB) - 1024 tebibytes
petabyte (P or PB) - 1000 gigabytes
exbibyte (e or EiB) - 1024 pibibytes
exabyte (E or EX) - 1000 petabytes

参考文献

• Ubuntu 22.04 - how to properly restart sshd?
• Ansible delegate_to task trying to ssh
• Is it possible to copy a local file to a remove server without using the Copy module?
• Error after sudo-ing "sudo: must be setuid root"
• New Line in an Ansible String
• How to set a task to run for a specific inventory group?
• Ansible - Manage LVM logical volumes using the lvol module
• Closed add optional backup_dir for the backup option
• Controlling where tasks run: delegation and local actions
• How to use Linux shell command exit codes
• ansible中文權威指南
• Configure your Chrony daemon with an Ansible playbook
• Using Ansible to manage RHEL 5 yesterday, today and tomorrow
• ansible user module always shows changed

作者: aisuhua