ansible cheat sheet

ansible_cheats.yml

# check if a string contains any substrings from a list
our_string: 'alexander graham cracker'
our_list: ['alex', 'barry', 'chris']
check_result_bool: '{{ our_list | select("in", our_string) | list | count > 0 }}'


# using a dictionary with version keys and selecting the highest appropriate key / options
our_version = '6.2.5'
version_options_dict:
  '6.5': [ 'an option for 6.5', 'something else' ]

  '6.0': [ 'something else', 'and another' ]

  '5.9': ['somthing else entirely' ]

{% set our_options_max_version =  version_options_dict.keys() | select('version_compare', our_version, '<=') | max %}
{% set our_options = version_options_dict[our_options_max_version] %}
Options {{ our_options | join(",") }}


# get ansible to slurp a (few) file(s) into a variable, with globs!
slurp: '{{ lookup("pipe","cat {{ role_path }}/files/*.extension") }}'

# object / dictionary lookup filters
nosuid_mounted_usr_filesystems: '{{ ansible_mounts | selectattr("mount", "equalto", "/usr") | selectattr("options", "search", "nosuid") | list }}'

# delete a substring from a string / remove an item from a list
modified_string: '{{ item.options.split(",") | difference(["nosuid"]) | join(",") }}'