FangXing

my ansible notes

19 Mar 2022

Useful ad-hoc commands

# oracle_cloud is a group of servers
ansible oracle_cloud --list-host
    # -a means --arg
    # -m means --module

# simple commands
ansible oracle_cloud -m setup # list infomation
ansible oracle_cloud -a "free -h"

# use module ping check server availability
ansible all -m ping

# run script
ansible ubuntu_utm -m script -a "fix_ripgrep_apt_error.sh"

# use module
ansible oracle_cloud -b -m yum -a "name=chrony state=present"
ansible multi -b -m service -a "name=chronyd state=started enabled=yes"

Role

# new role
ansible-galaxy role init roles/media_server

# import/include role
- name: import a role
    import_role: some_role
    when: should_import

Debug


# show variables or message
- debug: var=ansible_user
- debug: msg={{ansible_user}}


# show ansible execution details
ansible-playbook provision.yml -vvvv


# inspect config
ansible-config view
ansible-config dump

others

  • Ask sudo password
# pass sudo password
ansible-playbook -i inventory my.yml --extra-vars 'ansible_become_pass=YOUR-PASSWORD-HERE' 

# or use -k ask for password# -K ask for become password
ansible-playbook -i inventory my.yml -kK
  • make ansible faster by enable ssh pipeline
# ~/.ansible.cfg
[ssh_connection]
# may comment defaults requiretty option in /etc/sudoer
pipeling = True

references:

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