Configuration

Ansible supports a few ways of providing configuration variables, mainly through environment variables, command line switches and an ini file named ansible.cfg.

Starting at Ansible 2.4 the ansible-config utility allows users to see all the configuration settings available, their defaults, how to set them and where their current value comes from. See :doc:ansible-config for more information.

The configuration file

Changes can be made and used in a configuration file which will be searched for in the following order:

ANSIBLE_CONFIG (environment variable if set)
ansible.cfg (in the current directory)
~/.ansible.cfg (in the home directory)
/etc/ansible/ansible.cfg

Ansible will process the above list and use the first file found, all others are ignored.

Note

The configuration file is one variant of an INI format. Both the hash sign (#) and semicolon (;) are allowed as comment markers when the comment starts the line. However, if the comment is inline with regular values, only the semicolon is allowed to introduce the comment. For instance:

# some basic default values...
inventory = /etc/ansible/hosts  ; This points to the file that lists your hosts

Avoiding security risks with `ansible.cfg` in the current directory

If Ansible were to load :file:ansible.cfg from a world-writable current working directory, it would create a serious security risk. Another user could place their own config file there, designed to make Ansible run malicious code both locally and remotely, possibly with elevated privileges. For this reason, Ansible will not automatically load a config file from the current working directory if the directory is world-writable.

If you depend on using Ansible with a config file in the current working directory, the best way to avoid this problem is to restrict access to your Ansible directories to particular user(s) and/or group(s). If your Ansible directories live on a filesystem which has to emulate Unix permissions, like Vagrant or Windows Subsystem for Linux (WSL), you may, at first, not know how you can fix this as chmod, chown, and chgrp might not work there. In most of those cases, the correct fix is to modify the mount options of the filesystem so the files and directories are readable and writable by the users and groups running Ansible but closed to others. For more details on the correct settings, see:

for Vagrant, Jeremy Kendall’s blog post covers synced folder permissions.
for WSL, the WSL docs and this Microsoft blog post cover mount options.

If you absolutely depend on having the config live in a world-writable current working directory, you can explicitly specify the config file via the ANSIBLE_CONFIG environment variable. Please take appropriate steps to mitigate the security concerns above before doing so.

Common Options

ACCELERATE_CONNECT_TIMEOUT

Deprecated detail:
Description:	This setting controls the timeout for the socket connect call, and should be kept relatively low. The connection to the accelerate_port will be attempted 3 times before Ansible will fall back to ssh or paramiko (depending on your default connection setting) to try and start the accelerate daemon remotely. Note, this value can be set to less than one second, however it is probably not a good idea to do so unless you are on a very fast and reliable LAN. If you are connecting to systems over the internet, it may be necessary to increase this timeout.
Type:	float
Default:	1.0
Version Added:	1.4
Ini Section:	accelerate
Ini Key:	accelerate_connect_timeout
Environment:	`ACCELERATE_CONNECT_TIMEOUT`
Deprecated in:	2.5
	Removing accelerate as a connection method, settings not needed either.
Deprecated alternatives:
	ssh and paramiko

ACCELERATE_DAEMON_TIMEOUT

Deprecated detail:
Description:	This setting controls the timeout for the accelerated daemon, as measured in minutes. The default daemon timeout is 30 minutes. Prior to 1.6, the timeout was hard-coded from the time of the daemon’s launch. For version 1.6+, the timeout is now based on the last activity to the daemon and is configurable via this option.
Type:	integer
Default:	30
Version Added:	1.6
Ini Section:	accelerate
Ini Key:	accelerate_daemon_timeout
Environment:	`ACCELERATE_DAEMON_TIMEOUT`
Deprecated in:	2.5
	Removing accelerate as a connection method, settings not needed either.
Deprecated alternatives:
	ssh and paramiko

ACCELERATE_KEYS_DIR

Deprecated detail:
Default:	~/.fireball.keys
Ini Section:	accelerate
Ini Key:	accelerate_keys_dir
Environment:	`ACCELERATE_KEYS_DIR`
Deprecated in:	2.5
	Removing accelerate as a connection method, settings not needed either.
Deprecated alternatives:
	ssh and paramiko

ACCELERATE_KEYS_DIR_PERMS

Deprecated detail:
Default:	700
Ini Section:	accelerate
Ini Key:	accelerate_keys_dir_perms
Environment:	`ACCELERATE_KEYS_DIR_PERMS`
Deprecated in:	2.5
	Removing accelerate as a connection method, settings not needed either.
Deprecated alternatives:
	ssh and paramiko

ACCELERATE_KEYS_FILE_PERMS

Deprecated detail:
Default:	600
Ini Section:	accelerate
Ini Key:	accelerate_keys_file_perms
Environment:	`ACCELERATE_KEYS_FILE_PERMS`
Deprecated in:	2.5
	Removing accelerate as a connection method, settings not needed either.
Deprecated alternatives:
	ssh and paramiko

ACCELERATE_MULTI_KEY

Deprecated detail:
Type:	boolean
Default:	False
Ini Section:	accelerate
Ini Key:	accelerate_multi_key
Environment:	`ACCELERATE_MULTI_KEY`
Deprecated in:	2.5
	Removing accelerate as a connection method, settings not needed either.
Deprecated alternatives:
	ssh and paramiko

ACCELERATE_PORT

Deprecated detail:
Type:	integer
Default:	5099
Ini Section:	accelerate
Ini Key:	accelerate_port
Environment:	`ACCELERATE_PORT`
Deprecated in:	2.5
	Removing accelerate as a connection method, settings not needed either.
Deprecated alternatives:
	ssh and paramiko

ACCELERATE_TIMEOUT

Deprecated detail:
Type:	integer
Default:	30
Ini Section:	accelerate
Ini Key:	accelerate_timeout
Environment:	`ACCELERATE_TIMEOUT`
Deprecated in:	2.5
	Removing accelerate as a connection method, settings not needed either.
Deprecated alternatives:
	ssh and paramiko

ALLOW_WORLD_READABLE_TMPFILES

Description:	This makes the temporary files created on the machine to be world readable and will issue a warning instead of failing the task. It is useful when becoming an unprivileged user.
Type:	boolean
Default:	False
Version Added:	2.1
Ini Section:	defaults
Ini Key:	allow_world_readable_tmpfiles

ANSIBLE_COW_SELECTION

Description:	This allows you to chose a specific cowsay stencil for the banners or use ‘random’ to cycle through them.
Default:	default
Ini Section:	defaults
Ini Key:	cow_selection
Environment:	`ANSIBLE_COW_SELECTION`

ANSIBLE_COW_WHITELIST

Description:	White list of cowsay templates that are ‘safe’ to use, set to empty list if you want to enable all installed templates.
Type:	list
Default:	[‘bud-frogs’, ‘bunny’, ‘cheese’, ‘daemon’, ‘default’, ‘dragon’, ‘elephant-in-snake’, ‘elephant’, ‘eyes’, ‘hellokitty’, ‘kitty’, ‘luke-koala’, ‘meow’, ‘milk’, ‘moofasa’, ‘moose’, ‘ren’, ‘sheep’, ‘small’, ‘stegosaurus’, ‘stimpy’, ‘supermilker’, ‘three-eyes’, ‘turkey’, ‘turtle’, ‘tux’, ‘udder’, ‘vader-koala’, ‘vader’, ‘www’]
Ini Section:	defaults
Ini Key:	cow_whitelist
Environment:	`ANSIBLE_COW_WHITELIST`

ANSIBLE_FORCE_COLOR

Description:	This options forces color mode even when running without a TTY or the “nocolor” setting is True.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	force_color
Environment:	`ANSIBLE_FORCE_COLOR`

ANSIBLE_NOCOLOR

Description:	This setting allows suppressing colorizing output, which is used to give a better indication of failure and status information.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	nocolor
Environment:	`ANSIBLE_NOCOLOR`

ANSIBLE_NOCOWS

Description:	If you have cowsay installed but want to avoid the ‘cows’ (why????), use this.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	nocows
Environment:	`ANSIBLE_NOCOWS`

ANSIBLE_PIPELINING

Description:	Pipelining, if supported by the connection plugin, reduces the number of network operations required to execute a module on the remote server, by executing many Ansible modules without actual file transfer. This can result in a very significant performance improvement when enabled. However this conflicts with privilege escalation (become). For example, when using ‘sudo:’ operations you must first disable ‘requiretty’ in /etc/sudoers on all managed hosts, which is why it is disabled by default.
Type:	boolean
Default:	False
Ini Section:	connection
Ini Key:	pipelining
Ini Section:	ssh_connection
Ini Key:	pipelining
Environment:	`ANSIBLE_PIPELINING`
Environment:	`ANSIBLE_SSH_PIPELINING`

ANSIBLE_SSH_ARGS

Description:	If set, this will override the Ansible default ssh arguments. In particular, users may wish to raise the ControlPersist time to encourage performance. A value of 30 minutes may be appropriate. Be aware that if `-o ControlPath` is set in ssh_args, the control path setting is not used.
Default:	-C -o ControlMaster=auto -o ControlPersist=60s
Ini Section:	ssh_connection
Ini Key:	ssh_args
Environment:	`ANSIBLE_SSH_ARGS`

ANSIBLE_SSH_CONTROL_PATH

Description:	This is the location to save ssh’s ControlPath sockets, it uses ssh’s variable substitution. Since 2.3, if null, ansible will generate a unique hash. Use `%(directory)s` to indicate where to use the control dir path setting. Before 2.3 it defaulted to `control_path=%(directory)s/ansible-ssh-%%h-%%p-%%r`. Be aware that this setting is ignored if `-o ControlPath` is set in ssh args.
Default:	None
Ini Section:	ssh_connection
Ini Key:	control_path
Environment:	`ANSIBLE_SSH_CONTROL_PATH`

ANSIBLE_SSH_CONTROL_PATH_DIR

Description:	This sets the directory to use for ssh control path if the control path setting is null. Also, provides the `%(directory)s` variable for the control path setting.
Default:	~/.ansible/cp
Ini Section:	ssh_connection
Ini Key:	control_path_dir
Environment:	`ANSIBLE_SSH_CONTROL_PATH_DIR`

ANSIBLE_SSH_EXECUTABLE

Description:	This defines the location of the ssh binary. It defaults to `ssh` which will use the first ssh binary available in $PATH. This option is usually not required, it might be useful when access to system ssh is restricted, or when using ssh wrappers to connect to remote hosts.
Default:	ssh
Version Added:	2.2
Ini Section:	ssh_connection
Ini Key:	ssh_executable
Environment:	`ANSIBLE_SSH_EXECUTABLE`

ANSIBLE_SSH_RETRIES

Description:	Number of attempts to establish a connection before we give up and report the host as ‘UNREACHABLE’
Type:	integer
Default:	0
Ini Section:	ssh_connection
Ini Key:	retries
Environment:	`ANSIBLE_SSH_RETRIES`

ANY_ERRORS_FATAL

Description:	Sets the default value for the any_errors_fatal keyword, if True, Task failures will be considered fatal errors.
Type:	boolean
Default:	False
Version Added:	2.4
Ini Section:	defaults
Ini Key:	any_errors_fatal
Environment:	`ANSIBLE_ANY_ERRORS_FATAL`

BECOME_ALLOW_SAME_USER

Description:	This setting controls if become is skipped when remote user and become user are the same. I.E root sudo to root.
Type:	boolean
Default:	False
Ini Section:	privilege_escalation
Ini Key:	become_allow_same_user
Environment:	`ANSIBLE_BECOME_ALLOW_SAME_USER`

CACHE_PLUGIN

Description:	Chooses which cache plugin to use, the default ‘memory’ is ephimeral.
Default:	memory
Ini Section:	defaults
Ini Key:	fact_caching
Environment:	`ANSIBLE_CACHE_PLUGIN`

CACHE_PLUGIN_CONNECTION

Description:	Defines connection or path information for the cache plugin
Default:	None
Ini Section:	defaults
Ini Key:	fact_caching_connection
Environment:	`ANSIBLE_CACHE_PLUGIN_CONNECTION`

CACHE_PLUGIN_PREFIX

Description:	Prefix to use for cache plugin files/tables
Default:	ansible_facts
Ini Section:	defaults
Ini Key:	fact_caching_prefix
Environment:	`ANSIBLE_CACHE_PLUGIN_PREFIX`

CACHE_PLUGIN_TIMEOUT

Description:	Expiration timeout for the cache plugin data
Type:	integer
Default:	86400
Ini Section:	defaults
Ini Key:	fact_caching_timeout
Environment:	`ANSIBLE_CACHE_PLUGIN_TIMEOUT`

COLOR_CHANGED

Description:	Defines the color to use on ‘Changed’ task status
Default:	yellow
Ini Section:	colors
Ini Key:	changed
Environment:	`ANSIBLE_COLOR_CHANGED`

COLOR_DEBUG

Description:	Defines the color to use when emitting debug messages
Default:	dark gray
Ini Section:	colors
Ini Key:	debug
Environment:	`ANSIBLE_COLOR_DEBUG`

COLOR_DEPRECATE

Description:	Defines the color to use when emitting deprecation messages
Default:	purple
Ini Section:	colors
Ini Key:	deprecate
Environment:	`ANSIBLE_COLOR_DEPRECATE`

COLOR_DIFF_ADD

Description:	Defines the color to use when showing added lines in diffs
Default:	green
Ini Section:	colors
Ini Key:	diff_add
Environment:	`ANSIBLE_COLOR_DIFF_ADD`

COLOR_DIFF_LINES

Description:	Defines the color to use when showing diffs
Default:	cyan
Ini Section:	colors
Ini Key:	diff_lines
Environment:	`ANSIBLE_COLOR_DIFF_LINES`

COLOR_DIFF_REMOVE

Description:	Defines the color to use when showing removed lines in diffs
Default:	red
Ini Section:	colors
Ini Key:	diff_remove
Environment:	`ANSIBLE_COLOR_DIFF_REMOVE`

COLOR_ERROR

Description:	Defines the color to use when emitting error messages
Default:	red
Ini Section:	colors
Ini Key:	error
Environment:	`ANSIBLE_COLOR_ERROR`

COLOR_HIGHLIGHT

Description:	Color used for highlights
Default:	white
Ini Section:	colors
Ini Key:	highlight
Environment:	`ANSIBLE_COLOR_HIGHLIGHT`

COLOR_OK

Description:	Defines the color to use when showing ‘OK’ task status
Default:	green
Ini Section:	colors
Ini Key:	ok
Environment:	`ANSIBLE_COLOR_OK`

COLOR_SKIP

Description:	Defines the color to use when showing ‘Skipped’ task status
Default:	cyan
Ini Section:	colors
Ini Key:	skip
Environment:	`ANSIBLE_COLOR_SKIP`

COLOR_UNREACHABLE

Description:	Defines the color to use on ‘Unreachable’ status
Default:	bright red
Ini Section:	colors
Ini Key:	unreachable
Environment:	`ANSIBLE_COLOR_UNREACHABLE`

COLOR_VERBOSE

Description:	Defines the color to use when emitting verbose messages. i.e those that show with ‘-v’s.
Default:	blue
Ini Section:	colors
Ini Key:	verbose
Environment:	`ANSIBLE_COLOR_VERBOSE`

COLOR_WARN

Description:	Defines the color to use when emitting warning messages
Default:	bright purple
Ini Section:	colors
Ini Key:	warn
Environment:	`ANSIBLE_COLOR_WARN`

COMMAND_WARNINGS

Description:	By default Ansible will issue a warning when the shell or command module is used and the command appears to be similar to an existing Ansible module. These warnings can be silenced by adjusting this setting to False. You can also control this at the task level with the module optoin `warn`.
Type:	boolean
Default:	True
Version Added:	1.8
Ini Section:	defaults
Ini Key:	command_warnings
Environment:	`ANSIBLE_COMMAND_WARNINGS`

DEFAULT_ACTION_PLUGIN_PATH

Description:	Colon separated paths in which Ansible will search for Action Plugins.
Type:	pathspec
Default:	~/.ansible/plugins/action:/usr/share/ansible/plugins/action
Ini Section:	defaults
Ini Key:	action_plugins
Environment:	`ANSIBLE_ACTION_PLUGINS`

DEFAULT_ALLOW_UNSAFE_LOOKUPS

Description:	When enabled, this option allows lookup plugins (whether used in variables as `{{lookup('foo')}}` or as a loop as with_foo) to return data that is not marked ‘unsafe’. By default, such data is marked as unsafe to prevent the templating engine from evaluating any jinja2 templating language, as this could represent a security risk. This option is provided to allow for backwards-compatibility, however users should first consider adding allow_unsafe=True to any lookups which may be expected to contain data which may be run through the templating engine late
Type:	boolean
Default:	False
Version Added:	2.2.3
Ini Section:	defaults
Ini Key:	allow_unsafe_lookups

DEFAULT_ASK_PASS

Description:	This controls whether an Ansible playbook should prompt for a login password. If using SSH keys for authentication, you probably do not needed to change this setting.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	ask_pass
Environment:	`ANSIBLE_ASK_PASS`

DEFAULT_ASK_SU_PASS

Deprecated detail:
Description:	This controls whether an Ansible playbook should prompt for a su password.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	ask_su_pass
Environment:	`ANSIBLE_ASK_SU_PASS`
Deprecated in:	2.8
	In favor of become which is a generic framework
Deprecated alternatives:
	become

DEFAULT_ASK_SUDO_PASS

Deprecated detail:
Description:	This controls whether an Ansible playbook should prompt for a sudo password.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	ask_sudo_pass
Environment:	`ANSIBLE_ASK_SUDO_PASS`
Deprecated in:	2.8
	In favor of become which is a generic framework
Deprecated alternatives:
	become

DEFAULT_ASK_VAULT_PASS

Description:	This controls whether an Ansible playbook should prompt for a vault password.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	ask_vault_pass
Environment:	`ANSIBLE_ASK_VAULT_PASS`

DEFAULT_BECOME

Description:	Toggles the use of privilege escalation, allowing you to ‘become’ another user after login.
Type:	boolean
Default:	False
Ini Section:	privilege_escalation
Ini Key:	become
Environment:	`ANSIBLE_BECOME`

DEFAULT_BECOME_ASK_PASS

Description:	Toggle to prompt for privilege escalation password.
Type:	boolean
Default:	False
Ini Section:	privilege_escalation
Ini Key:	become_ask_pass
Environment:	`ANSIBLE_BECOME_ASK_PASS`

DEFAULT_BECOME_EXE

Description:	executable to use for privilege escalation, otherwise Ansible will depend on PATH
Default:	None
Ini Section:	privilege_escalation
Ini Key:	become_exe
Environment:	`ANSIBLE_BECOME_EXE`

DEFAULT_BECOME_FLAGS

Description:	Flags to pass to the privilege escalation executable.
Default:
Ini Section:	privilege_escalation
Ini Key:	become_flags
Environment:	`ANSIBLE_BECOME_FLAGS`

DEFAULT_BECOME_METHOD

Description:	Privilege escalation method to use when `become` is enabled.
Default:	sudo
Ini Section:	privilege_escalation
Ini Key:	become_method
Environment:	`ANSIBLE_BECOME_METHOD`

DEFAULT_BECOME_USER

Description:	The user your login/remote user ‘becomes’ when using privilege escalation, most systems will use ‘root’ when no user is specified.
Default:	root
Ini Section:	privilege_escalation
Ini Key:	become_user
Environment:	`ANSIBLE_BECOME_USER`

DEFAULT_CACHE_PLUGIN_PATH

Description:	Colon separated paths in which Ansible will search for Cache Plugins.
Type:	pathspec
Default:	~/.ansible/plugins/cache:/usr/share/ansible/plugins/cache
Ini Section:	defaults
Ini Key:	cache_plugins
Environment:	`ANSIBLE_CACHE_PLUGINS`

DEFAULT_CALLABLE_WHITELIST

Description:	Whitelist of callable methods to be made available to template evaluation
Type:	list
Default:	[]
Ini Section:	defaults
Ini Key:	callable_whitelist
Environment:	`ANSIBLE_CALLABLE_WHITELIST`

DEFAULT_CALLBACK_PLUGIN_PATH

Description:	Colon separated paths in which Ansible will search for Callback Plugins.
Type:	pathspec
Default:	~/.ansible/plugins/callback:/usr/share/ansible/plugins/callback
Ini Section:	defaults
Ini Key:	callback_plugins
Environment:	`ANSIBLE_CALLBACK_PLUGINS`

DEFAULT_CALLBACK_WHITELIST

Description:	List of whitelisted callbacks, not all callbacks need whitelisting, but many of those shipped with Ansible do as we don’t want them activated by default.
Type:	list
Default:	[]
Ini Section:	defaults
Ini Key:	callback_whitelist
Environment:	`ANSIBLE_CALLBACK_WHITELIST`

DEFAULT_CONNECTION_PLUGIN_PATH

Description:	Colon separated paths in which Ansible will search for Connection Plugins.
Type:	pathspec
Default:	~/.ansible/plugins/connection:/usr/share/ansible/plugins/connection
Ini Section:	defaults
Ini Key:	connection_plugins
Environment:	`ANSIBLE_CONNECTION_PLUGINS`

DEFAULT_DEBUG

Description:	Toggles debug output in Ansible, VERY verbose and can hinder multiprocessing.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	debug
Environment:	`ANSIBLE_DEBUG`

DEFAULT_EXECUTABLE

Description:	This indicates the command to use to spawn a shell under for Ansible’s execution needs on a target. Users may need to change this in rare instances when shell usage is constrained, but in most cases it may be left as is.
Default:	/bin/sh
Ini Section:	defaults
Ini Key:	executable
Environment:	`ANSIBLE_EXECUTABLE`

DEFAULT_FACT_PATH

Description:	This option allows you to globally configure a custom path for ‘local_facts’ for the implied M(setup) task when using fact gathering. If not set, it will fallback to the default from the M(setup) module: `/etc/ansible/facts.d`. This does not affect user defined tasks that use the M(setup) module.
Type:	path
Default:	None
Ini Section:	defaults
Ini Key:	fact_path
Environment:	`ANSIBLE_FACT_PATH`

DEFAULT_FILTER_PLUGIN_PATH

Description:	Colon separated paths in which Ansible will search for Jinja2 Filter Plugins.
Type:	pathspec
Default:	~/.ansible/plugins/filter:/usr/share/ansible/plugins/filter
Ini Section:	defaults
Ini Key:	filter_plugins
Environment:	`ANSIBLE_FILTER_PLUGINS`

DEFAULT_FORCE_HANDLERS

Description:	This option controls if notified handlers run on a host even if a failure occurs on that host. When false, the handlers will not run if a failure has occurred on a host. This can also be set per play or on the command line. See Handlers and Failure for more details.
Type:	boolean
Default:	False
Version Added:	1.9.1
Ini Section:	defaults
Ini Key:	force_handlers
Environment:	`ANSIBLE_FORCE_HANDLERS`

DEFAULT_FORKS

Description:	Maximum number of forks Ansible will use to execute tasks on target hosts.
Type:	integer
Default:	5
Ini Section:	defaults
Ini Key:	forks
Environment:	`ANSIBLE_FORKS`

DEFAULT_GATHER_SUBSET

Description:	Set the `gather_subset` option for the M(setup) task in the implicit fact gathering. See the module documentation for specifics. It does not apply to user defined M(setup) tasks.
Default:	all
Version Added:	2.1
Ini Section:	defaults
Ini Key:	gather_subset
Environment:	`ANSIBLE_GATHER_SUBSET`

DEFAULT_GATHER_TIMEOUT

Description:	Set the timeout in seconds for the implicit fact gathering. It does not apply to user defined M(setup) tasks.
Type:	integer
Default:	10
Ini Section:	defaults
Ini Key:	gather_timeout
Environment:	`ANSIBLE_GATHER_TIMEOUT`

DEFAULT_GATHERING

Description:	This setting controls the default policy of fact gathering (facts discovered about remote systems). When ‘implicit’ (the default), the cache plugin will be ignored and facts will be gathered per play unless ‘gather_facts: False’ is set. When ‘explicit’ the inverse is true, facts will not be gathered unless directly requested in the play. The ‘smart’ value means each new host that has no facts discovered will be scanned, but if the same host is addressed in multiple plays it will not be contacted again in the playbook run. This option can be useful for those wishing to save fact gathering time. Both ‘smart’ and ‘explicit’ will use the cache plugin.
Default:	implicit
Version Added:	1.6
Ini Section:	defaults
Ini Key:	gathering
Environment:	`ANSIBLE_GATHERING`

DEFAULT_HANDLER_INCLUDES_STATIC

Deprecated detail:
Description:	Since 2.0 M(include) can be ‘dynamic’, this setting (if True) forces that if the include appears in a `handlers` section to be ‘static’.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	handler_includes_static
Environment:	`ANSIBLE_HANDLER_INCLUDES_STATIC`
Deprecated in:	2.8
	include itself is deprecated and this setting will not matter in the future
Deprecated alternatives:
	none as its already built into the decision between include_tasks and import_tasks

DEFAULT_HASH_BEHAVIOUR

Description:	This setting controls how variables merge in Ansible. By default Ansible will override variables in specific precedence orders, as described in Variables. When a variable of higher precedence wins, it will replace the other value. Some users prefer that variables that are hashes (aka ‘dictionaries’ in Python terms) are merged. This setting is called ‘merge’. This is not the default behavior and it does not affect variables whose values are scalars (integers, strings) or arrays. We generally recommend not using this setting unless you think you have an absolute need for it, and playbooks in the official examples repos do not use this setting In version 2.0 a `combine` filter was added to allow doing this for a particular variable (described in Filters).
Type:	string
Default:	replace
Ini Section:	defaults
Ini Key:	hash_behaviour
Environment:	`ANSIBLE_HASH_BEHAVIOUR`

DEFAULT_HOST_LIST

Description:	Colon separated list of Ansible inventory sources
Type:	pathlist
Default:	/etc/ansible/hosts
Ini Section:	defaults
Ini Key:	inventory
Ini Section:	defaults
Ini Key:	hostfile
Environment:	`ANSIBLE_INVENTORY`
Environment:	`ANSIBLE_HOSTS`

DEFAULT_INTERNAL_POLL_INTERVAL

Description:	This sets the interval (in seconds) of Ansible internal processes polling each other. Lower values improve performance with large playbooks at the expense of extra CPU load. Higher values are more suitable for Ansible usage in automation scenarios, when UI responsiveness is not required but CPU usage might be a concern. The default corresponds to the value hardcoded in Ansible <= 2.1
Type:	float
Default:	0.001
Version Added:	2.2
Ini Section:	defaults
Ini Key:	internal_poll_interval

DEFAULT_INVENTORY_PLUGIN_PATH

Description:	Colon separated paths in which Ansible will search for Inventory Plugins.
Type:	pathspec
Default:	~/.ansible/plugins/inventory:/usr/share/ansible/plugins/inventory
Ini Section:	defaults
Ini Key:	inventory_plugins
Environment:	`ANSIBLE_INVENTORY_PLUGINS`

DEFAULT_JINJA2_EXTENSIONS

Description:	This is a developer-specific feature that allows enabling additional Jinja2 extensions. See the Jinja2 documentation for details. If you do not know what these do, you probably don’t need to change this setting :)
Default:	[]
Ini Section:	defaults
Ini Key:	jinja2_extensions
Environment:	`ANSIBLE_JINJA2_EXTENSIONS`

DEFAULT_KEEP_REMOTE_FILES

Description:	Enables/disables the cleaning up of the temporary files Ansible used to execute the tasks on the remote.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	keep_remote_files
Environment:	`ANSIBLE_KEEP_REMOTE_FILES`

DEFAULT_LIBVIRT_LXC_NOSECLABEL

Description:	This setting causes libvirt to connect to lxc containers by passing –noseclabel to virsh. This is necessary when running on systems which do not have SELinux.
Type:	boolean
Default:	False
Version Added:	2.1
Ini Section:	selinux
Ini Key:	libvirt_lxc_noseclabel
Environment:	`LIBVIRT_LXC_NOSECLABEL`

DEFAULT_LOAD_CALLBACK_PLUGINS

Description:	Controls whether callback plugins are loaded when running /usr/bin/ansible. This may be used to log activity from the command line, send notifications, and so on. Callback plugins are always loaded for `ansible-playbook`.
Type:	boolean
Default:	False
Version Added:	1.8
Ini Section:	defaults
Ini Key:	bin_ansible_callbacks
Environment:	`ANSIBLE_LOAD_CALLBACK_PLUGINS`

DEFAULT_LOCAL_TMP

Description:	Temporary directory for Ansible to use on the controller.
Type:	tmppath
Default:	~/.ansible/tmp
Ini Section:	defaults
Ini Key:	local_tmp
Environment:	`ANSIBLE_LOCAL_TEMP`

DEFAULT_LOG_PATH

Description:	File to which Ansible will log on the controller. When empty logging is disabled.
Type:	path
Default:
Ini Section:	defaults
Ini Key:	log_path
Environment:	`ANSIBLE_LOG_PATH`

DEFAULT_LOOKUP_PLUGIN_PATH

Description:	Colon separated paths in which Ansible will search for Lookup Plugins.
Type:	pathspec
Default:	~/.ansible/plugins/lookup:/usr/share/ansible/plugins/lookup
Ini Section:	defaults
Ini Key:	lookup_plugins
Environment:	`ANSIBLE_LOOKUP_PLUGINS`

DEFAULT_MANAGED_STR

Description:	Sets the macro for the ‘ansible_managed’ variable available for M(template) tasks.
Default:	Ansible managed
Ini Section:	defaults
Ini Key:	ansible_managed

DEFAULT_MODULE_ARGS

Description:	This sets the default arguments to pass to the `ansible` adhoc binary if no `-a` is specified.
Default:
Ini Section:	defaults
Ini Key:	module_args
Environment:	`ANSIBLE_MODULE_ARGS`

DEFAULT_MODULE_COMPRESSION

Description:	Compression scheme to use when transfering Python modules to the target.
Default:	ZIP_DEFLATED
Ini Section:	defaults
Ini Key:	module_compression

DEFAULT_MODULE_LANG

Description:	Language locale setting to use for modules when they execute on the target, if empty it defaults to ‘en_US.UTF-8’
Default:	{{CONTROLER_LANG}}
Ini Section:	defaults
Ini Key:	module_lang
Environment:	`ANSIBLE_MODULE_LANG`

DEFAULT_MODULE_NAME

Description:	Module to use with the `ansible` AdHoc command, if none is specified via `-m`.
Default:	command
Ini Section:	defaults
Ini Key:	module_name

DEFAULT_MODULE_PATH

Description:	Colon separated paths in which Ansible will search for Modules.
Type:	pathspec
Default:	~/.ansible/plugins/modules:/usr/share/ansible/plugins/modules
Ini Section:	defaults
Ini Key:	library
Environment:	`ANSIBLE_LIBRARY`

DEFAULT_MODULE_SET_LOCALE

Description:	Controls if we set locale for modules when executing on the target.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	module_set_locale
Environment:	`ANSIBLE_MODULE_SET_LOCALE`

DEFAULT_MODULE_UTILS_PATH

Description:	Colon separated paths in which Ansible will search for Module utils files, which are shared by modules.
Type:	pathspec
Default:	~/.ansible/plugins/module_utils:/usr/share/ansible/plugins/module_utils
Ini Section:	defaults
Ini Key:	module_utils
Environment:	`ANSIBLE_MODULE_UTILS`

DEFAULT_NO_LOG

Description:	Toggle Ansible’s display and logging of task details, mainly used to avoid security disclosures.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	no_log
Environment:	`ANSIBLE_NO_LOG`

DEFAULT_NO_TARGET_SYSLOG

Description:	Toggle Ansbile logging to syslog on the target when it executes tasks.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	no_target_syslog
Environment:	`ANSIBLE_NO_TARGET_SYSLOG`

DEFAULT_NULL_REPRESENTATION

Description:	What templating should return as a ‘null’ value. When not set it will let Jinja2 decide.
Type:	none
Default:	None
Ini Section:	defaults
Ini Key:	null_representation
Environment:	`ANSIBLE_NULL_REPRESENTATION`

DEFAULT_POLL_INTERVAL

Description:	For asynchronous tasks in Ansible (covered in Asynchronous Actions and Polling), this is how often to check back on the status of those tasks when an explicit poll interval is not supplied. The default is a reasonably moderate 15 seconds which is a tradeoff between checking in frequently and providing a quick turnaround when something may have completed.
Type:	integer
Default:	15
Ini Section:	defaults
Ini Key:	poll_interval
Environment:	`ANSIBLE_POLL_INTERVAL`

DEFAULT_PRIVATE_KEY_FILE

Description:	Option for connections using a certificate or key file to authenticate, rather than an agent or passwords, you can set the default value here to avoid re-specifying –private-key with every invocation.
Type:	path
Default:	None
Ini Section:	defaults
Ini Key:	private_key_file
Environment:	`ANSIBLE_PRIVATE_KEY_FILE`

DEFAULT_PRIVATE_ROLE_VARS

Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	private_role_vars
Environment:	`ANSIBLE_PRIVATE_ROLE_VARS`

DEFAULT_REMOTE_PORT

Description:	Port to use in remote connections, when blank it will use the connection plugin default.
Type:	integer
Default:	None
Ini Section:	defaults
Ini Key:	remote_port
Environment:	`ANSIBLE_REMOTE_PORT`

DEFAULT_REMOTE_TMP

Description:	Temporary directory to use on targets when executing tasks. In some cases Ansible may still choose to use a system temporary dir to avoid permission issues.
Default:	~/.ansible/tmp
Ini Section:	defaults
Ini Key:	remote_tmp
Environment:	`ANSIBLE_REMOTE_TEMP`

DEFAULT_REMOTE_USER

Description:	Sets the login user for the target machines When blank it uses the connection plugin’s default, normally the user currently executing Ansible.
Default:	None
Ini Section:	defaults
Ini Key:	remote_user
Environment:	`ANSIBLE_REMOTE_USER`

DEFAULT_ROLES_PATH

Description:	Colon separated paths in which Ansible will search for Roles.
Type:	pathspec
Default:	~/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles
Ini Section:	defaults
Ini Key:	roles_path
Environment:	`ANSIBLE_ROLES_PATH`

DEFAULT_SCP_IF_SSH

Description:	Prefered method to use when transfering files over ssh When set to smart, Ansible will try them until one succeeds or they all fail If set to True, it will force ‘scp’, if False it will use ‘sftp’
Default:	smart
Ini Section:	ssh_connection
Ini Key:	scp_if_ssh
Environment:	`ANSIBLE_SCP_IF_SSH`

DEFAULT_SELINUX_SPECIAL_FS

Description:	Some filesystems do not support safe operations and/or return inconsistent errors, this setting makes Ansible ‘tolerate’ those in the list w/o causing fatal errors. Data corruption may occur and writes are not always verified when a filesystem is in the list.
Type:	list
Default:	fuse, nfs, vboxsf, ramfs, 9p
Ini Section:	selinux
Ini Key:	special_context_filesystems

DEFAULT_SFTP_BATCH_MODE

Type:	boolean
Default:	True
Ini Section:	ssh_connection
Ini Key:	sftp_batch_mode
Environment:	`ANSIBLE_SFTP_BATCH_MODE`

DEFAULT_SQUASH_ACTIONS

Description:	Ansible can optimise actions that call modules that support list parameters when using `with_` looping. Instead of calling the module once for each item, the module is called once with the full list. The default value for this setting is only for certain package managers, but it can be used for any module Currently, this is only supported for modules that have a name or pkg parameter, and only when the item is the only thing being passed to the parameter.
Type:	list
Default:	apk, apt, dnf, homebrew, openbsd_pkg, pacman, pkgng, yum, zypper
Version Added:	2.0
Ini Section:	defaults
Ini Key:	squash_actions
Environment:	`ANSIBLE_SQUASH_ACTIONS`

DEFAULT_SSH_TRANSFER_METHOD

Description:	unused?
Default:	None
Ini Section:	ssh_connection
Ini Key:	transfer_method
Environment:	`ANSIBLE_SSH_TRANSFER_METHOD`

DEFAULT_STDOUT_CALLBACK

Description:	Set the main callback used to display Ansible output, you can only have one at a time. You can have many other callbacks, but just one can be in charge of stdout.
Default:	default
Ini Section:	defaults
Ini Key:	stdout_callback
Environment:	`ANSIBLE_STDOUT_CALLBACK`

DEFAULT_STRATEGY

Description:	Set the default strategy used for plays.
Default:	linear
Version Added:	2.3
Ini Section:	defaults
Ini Key:	strategy
Environment:	`ANSIBLE_STRATEGY`

DEFAULT_STRATEGY_PLUGIN_PATH

Description:	Colon separated paths in which Ansible will search for Strategy Plugins.
Type:	pathspec
Default:	~/.ansible/plugins/strategy:/usr/share/ansible/plugins/strategy
Ini Section:	defaults
Ini Key:	strategy_plugins
Environment:	`ANSIBLE_STRATEGY_PLUGINS`

DEFAULT_SU

Description:	Toggle the use of “su” for tasks.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	su
Environment:	`ANSIBLE_SU`

DEFAULT_SU_EXE

Deprecated detail:
Description:	specify an “su” executable, otherwise it relies on PATH.
Default:	su
Ini Section:	defaults
Ini Key:	su_exe
Environment:	`ANSIBLE_SU_EXE`
Deprecated in:	2.8
	In favor of become which is a generic framework
Deprecated alternatives:
	become

DEFAULT_SU_FLAGS

Deprecated detail:
Description:	Flags to pass to su
Default:
Ini Section:	defaults
Ini Key:	su_flags
Environment:	`ANSIBLE_SU_FLAGS`
Deprecated in:	2.8
	In favor of become which is a generic framework
Deprecated alternatives:
	become

DEFAULT_SU_USER

Deprecated detail:
Description:	User you become when using “su”, leaving it blank will use the default configured on the target (normally root)
Default:	None
Ini Section:	defaults
Ini Key:	su_user
Environment:	`ANSIBLE_SU_USER`
Deprecated in:	2.8
	In favor of become which is a generic framework
Deprecated alternatives:
	become

DEFAULT_SUDO

Deprecated detail:
Description:	Toggle the use of “sudo” for tasks.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	sudo
Environment:	`ANSIBLE_SUDO`
Deprecated in:	2.8
	In favor of become which is a generic framework
Deprecated alternatives:
	become

DEFAULT_SUDO_EXE

Deprecated detail:
Description:	specify an “sudo” executable, otherwise it relies on PATH.
Default:	sudo
Ini Section:	defaults
Ini Key:	sudo_exe
Environment:	`ANSIBLE_SUDO_EXE`
Deprecated in:	2.8
	In favor of become which is a generic framework
Deprecated alternatives:
	become

DEFAULT_SUDO_FLAGS

Deprecated detail:
Description:	Flags to pass to “sudo”
Default:	-H -S -n
Ini Section:	defaults
Ini Key:	sudo_flags
Environment:	`ANSIBLE_SUDO_FLAGS`
Deprecated in:	2.8
	In favor of become which is a generic framework
Deprecated alternatives:
	become

DEFAULT_SUDO_USER

Deprecated detail:
Description:	User you become when using “sudo”, leaving it blank will use the default configured on the target (normally root)
Default:	None
Ini Section:	defaults
Ini Key:	sudo_user
Environment:	`ANSIBLE_SUDO_USER`
Deprecated in:	2.8
	In favor of become which is a generic framework
Deprecated alternatives:
	become

DEFAULT_SYSLOG_FACILITY

Description:	Syslog facility to use when Ansible logs to the remote target
Default:	LOG_USER
Ini Section:	defaults
Ini Key:	syslog_facility
Environment:	`ANSIBLE_SYSLOG_FACILITY`

DEFAULT_TASK_INCLUDES_STATIC

Deprecated detail:
Description:	The `include` tasks can be static or dynamic, this toggles the default expected behaviour if autodetection fails and it is not explicitly set in task.
Type:	boolean
Default:	False
Version Added:	2.1
Ini Section:	defaults
Ini Key:	task_includes_static
Environment:	`ANSIBLE_TASK_INCLUDES_STATIC`
Deprecated in:	2.8
	include itself is deprecated and this setting will not matter in the future
Deprecated alternatives:
	None, as its already built into the decision between include_tasks and import_tasks

DEFAULT_TEST_PLUGIN_PATH

Description:	Colon separated paths in which Ansible will search for Jinja2 Test Plugins.
Type:	pathspec
Default:	~/.ansible/plugins/test:/usr/share/ansible/plugins/test
Ini Section:	defaults
Ini Key:	test_plugins
Environment:	`ANSIBLE_TEST_PLUGINS`

DEFAULT_TIMEOUT

Description:	This is the default timeout for connection plugins to use.
Type:	integer
Default:	10
Ini Section:	defaults
Ini Key:	timeout
Environment:	`ANSIBLE_TIMEOUT`

DEFAULT_TRANSPORT

Description:	Default connection plugin to use, the ‘smart’ option will toggle between ‘ssh’ and ‘paramiko’ depending on controller OS and ssh versions
Default:	smart
Ini Section:	defaults
Ini Key:	transport
Environment:	`ANSIBLE_TRANSPORT`

DEFAULT_UNDEFINED_VAR_BEHAVIOR

Description:	When True, this causes ansible templating to fail steps that reference variable names that are likely typoed. Otherwise, any ‘{{ template_expression }}’ that contains undefined variables will be rendered in a template or ansible action line exactly as written.
Type:	boolean
Default:	True
Version Added:	1.3
Ini Section:	defaults
Ini Key:	error_on_undefined_vars
Environment:	`ANSIBLE_ERROR_ON_UNDEFINED_VARS`

DEFAULT_VARS_PLUGIN_PATH

Description:	Colon separated paths in which Ansible will search for Vars Plugins.
Type:	pathspec
Default:	~/.ansible/plugins/vars:/usr/share/ansible/plugins/vars
Ini Section:	defaults
Ini Key:	vars_plugins
Environment:	`ANSIBLE_VARS_PLUGINS`

DEFAULT_VAULT_ID_MATCH

Description:	If true, decrypting vaults with a vault id will only try the password from the matching vault-id
Default:	False
Ini Section:	defaults
Ini Key:	vault_id_match
Environment:	`ANSIBLE_VAULT_ID_MATCH`

DEFAULT_VAULT_IDENTITY

Description:	The label to use for the default vault id label in cases where a vault id label is not provided
Default:	default
Ini Section:	defaults
Ini Key:	vault_identity
Environment:	`ANSIBLE_VAULT_IDENTITY`

DEFAULT_VAULT_IDENTITY_LIST

Description:	A list of vault-ids to use by default. Equivalent to multiple –vault-id args. Vault-ids are tried in order.
Type:	list
Default:	[]
Ini Section:	defaults
Ini Key:	vault_identity_list
Environment:	`ANSIBLE_VAULT_IDENTITY_LIST`

DEFAULT_VAULT_PASSWORD_FILE

Description:	The vault password file to use. Equivalent to –vault-password-file or –vault-id
Type:	path
Default:	None
Ini Section:	defaults
Ini Key:	vault_password_file
Environment:	`ANSIBLE_VAULT_PASSWORD_FILE`

DEFAULT_VERBOSITY

Description:	Sets the default verbosity, equivalent to the number of `-v` passed in the command line.
Type:	integer
Default:	0
Ini Section:	defaults
Ini Key:	verbosity
Environment:	`ANSIBLE_VERBOSITY`

DEPRECATION_WARNINGS

Description:	Toggle to control the showing of deprecation warnings
Type:	boolean
Default:	True
Ini Section:	defaults
Ini Key:	deprecation_warnings
Environment:	`ANSIBLE_DEPRECATION_WARNINGS`

DIFF_ALWAYS

Description:	Configuration toggle to tell modules to show differences when in ‘changed’ status, equivalent to `--diff`.
Type:	bool
Default:	False
Ini Section:	diff
Ini Key:	always
Environment:	`ANSIBLE_DIFF_ALWAYS`

DIFF_CONTEXT

Description:	How many lines of context to show when displaying the differences between files.
Type:	integer
Default:	3
Ini Section:	diff
Ini Key:	context
Environment:	`ANSIBLE_DIFF_CONTEXT`

DISPLAY_ARGS_TO_STDOUT

Description:	Normally `ansible-playbook` will print a header for each task that is run. These headers will contain the name: field from the task if you specified one. If you didn’t then `ansible-playbook` uses the task’s action to help you tell which task is presently running. Sometimes you run many of the same action and so you want more information about the task to differentiate it from others of the same action. If you set this variable to True in the config then `ansible-playbook` will also include the task’s arguments in the header. This setting defaults to False because there is a chance that you have sensitive values in your parameters and you do not want those to be printed. If you set this to True you should be sure that you have secured your environment’s stdout (no one can shoulder surf your screen and you aren’t saving stdout to an insecure file) or made sure that all of your playbooks explicitly added the `no_log: True` parameter to tasks which have sensistive values See How do I keep secret data in my playbook? for more information.
Type:	boolean
Default:	False
Version Added:	2.1
Ini Section:	defaults
Ini Key:	display_args_to_stdout
Environment:	`ANSIBLE_DISPLAY_ARGS_TO_STDOUT`

DISPLAY_SKIPPED_HOSTS

Description:	Toggle to control displaying skipped task/host entries in a task in the default callback
Type:	boolean
Default:	True
Ini Section:	defaults
Ini Key:	display_skipped_hosts
Environment:	`DISPLAY_SKIPPED_HOSTS`

ERROR_ON_MISSING_HANDLER

Description:	Toggle to allow missing handlers to become a warning instead of an error when notifying.
Type:	boolean
Default:	True
Ini Section:	defaults
Ini Key:	error_on_missing_handler
Environment:	`ANSIBLE_ERROR_ON_MISSING_HANDLER`

GALAXY_IGNORE_CERTS

Description:	If set to yes, ansible-galaxy will not validate TLS certificates. This can be useful for testing against a server with a self-signed certificate.
Type:	boolean
Default:	False
Ini Section:	galaxy
Ini Key:	ignore_certs
Environment:	`ANSIBLE_GALAXY_IGNORE`

GALAXY_ROLE_SKELETON

Description:	Role skeleton directory to use as a template for the `init` action in `ansible-galaxy`, same as `--role-skeleton`.
Type:	path
Default:	None
Ini Section:	galaxy
Ini Key:	role_skeleton
Environment:	`ANSIBLE_GALAXY_ROLE_SKELETON`

GALAXY_ROLE_SKELETON_IGNORE

Description:	patterns of files to ignore inside a galaxy role skeleton directory
Type:	list
Default:	[‘^.git$’, ‘^.*/.git_keep$’]
Ini Section:	galaxy
Ini Key:	role_skeleton_ignore
Environment:	`ANSIBLE_GALAXY_ROLE_SKELETON_IGNORE`

GALAXY_SERVER

Description:	URL to prepend when roles don’t specify the full URI, assume they are referencing this server as the source.
Default:	https://galaxy.ansible.com
Ini Section:	galaxy
Ini Key:	server
Environment:	`ANSIBLE_GALAXY_SERVER`

HOST_KEY_CHECKING

Description:	Set this to “False” if you want to avoid host key checking by the underlying tools Ansible uses to connect to the host
Type:	boolean
Default:	True
Ini Section:	defaults
Ini Key:	host_key_checking
Environment:	`ANSIBLE_HOST_KEY_CHECKING`

INVENTORY_ENABLED

Description:	List of enabled inventory plugins, it also determines the order in which they are used.
Type:	list
Default:	[‘host_list’, ‘script’, ‘yaml’, ‘ini’]
Ini Section:	inventory
Ini Key:	enable_plugins
Environment:	`ANSIBLE_INVENTORY_ENABLED`

INVENTORY_IGNORE_EXTS

Description:	List of extensions to ignore when using a directory as an inventory source
Type:	list
Default:	{{(BLACKLIST_EXTS + ( ‘~’, ‘.orig’, ‘.ini’, ‘.cfg’, ‘.retry’))}}
Ini Section:	inventory
Ini Key:	ignore_extensions
Ini Section:	defaults
Ini Key:	inventory_ignore_extensions
Environment:	`ANSIBLE_INVENTORY_IGNORE`

INVENTORY_IGNORE_PATTERNS

Description:	List of patterns to ignore when using a directory as an inventory source
Type:	list
Default:	[]
Ini Section:	inventory
Ini Key:	ignore_patterns
Ini Section:	defaults
Ini Key:	inventory_ignore_patterns
Environment:	`ANSIBLE_INVENTORY_IGNORE_REGEX`

INVENTORY_UNPARSED_IS_FAILED

Description:	If ‘true’ unparsed inventory sources become fatal errors, they are warnings otherwise.
Type:	bool
Default:	False
Ini Section:	inventory
Ini Key:	unparsed_is_failed
Environment:	`ANSIBLE_INVENTORY_UNPARSED_FAILED`

MAX_FILE_SIZE_FOR_DIFF

Description:	Maximum size of files to be considered for diff display
Type:	int
Default:	104448
Ini Section:	defaults
Ini Key:	max_diff_size
Environment:	`ANSIBLE_MAX_DIFF_SIZE`

MERGE_MULTIPLE_CLI_TAGS

Description:	This allows changing how multiple –tags and –skip-tags arguments are handled on the command line. In Ansible up to and including 2.3, specifying –tags more than once will only take the last value of –tags. Setting this config value to True will mean that all of the –tags options will be merged together. The same holds true for –skip-tags.
Type:	bool
Default:	True
Version Added:	2.3
Ini Section:	defaults
Ini Key:	merge_multiple_cli_tags
Environment:	`ANSIBLE_MERGE_MULTIPLE_CLI_TAGS`

NETWORK_GROUP_MODULES

Type:	list
Default:	[‘eos’, ‘nxos’, ‘ios’, ‘iosxr’, ‘junos’, ‘ce’, ‘vyos’, ‘sros’, ‘dellos9’, ‘dellos10’, ‘dellos6’, ‘asa’, ‘aruba’, ‘aireos’]
Ini Section:	defaults
Ini Key:	network_group_modules
Environment:	`NETWORK_GROUP_MODULES`

PARAMIKO_HOST_KEY_AUTO_ADD

Type:	boolean
Default:	False
Ini Section:	paramiko_connection
Ini Key:	host_key_auto_add
Environment:	`ANSIBLE_PARAMIKO_HOST_KEY_AUTO_ADD`

PARAMIKO_LOOK_FOR_KEYS

Type:	boolean
Default:	True
Ini Section:	paramiko_connection
Ini Key:	look_for_keys
Environment:	`ANSIBLE_PARAMIKO_LOOK_FOR_KEYS`

PARAMIKO_PROXY_COMMAND

Default:	None
Ini Section:	paramiko_connection
Ini Key:	proxy_command
Environment:	`ANSIBLE_PARAMIKO_PROXY_COMMAND`

PARAMIKO_PTY

Type:	boolean
Default:	True
Ini Section:	paramiko_connection
Ini Key:	pty
Environment:	`ANSIBLE_PARAMIKO_PTY`

PARAMIKO_RECORD_HOST_KEYS

Type:	boolean
Default:	True
Ini Section:	paramiko_connection
Ini Key:	record_host_keys
Environment:	`ANSIBLE_PARAMIKO_RECORD_HOST_KEYS`

PERSISTENT_COMMAND_TIMEOUT

Description:	This controls the amount of time to wait for response from remote device before timing out presistent connection.
Type:	int
Default:	10
Ini Section:	persistent_connection
Ini Key:	command_timeout
Environment:	`ANSIBLE_PERSISTENT_COMMAND_TIMEOUT`

PERSISTENT_CONNECT_RETRY_TIMEOUT

Description:	This contorls the retry timeout for presistent connection to connect to the local domain socket.
Type:	integer
Default:	15
Ini Section:	persistent_connection
Ini Key:	connect_retry_timeout
Environment:	`ANSIBLE_PERSISTENT_CONNECT_RETRY_TIMEOUT`

PERSISTENT_CONNECT_TIMEOUT

Description:	This controls how long the persistent connection will remain idle before it is destroyed.
Type:	integer
Default:	30
Ini Section:	persistent_connection
Ini Key:	connect_timeout
Environment:	`ANSIBLE_PERSISTENT_CONNECT_TIMEOUT`

PERSISTENT_CONTROL_PATH_DIR

Description:	Path to socket to be used by the connection persistence system.
Type:	path
Default:	~/.ansible/pc
Ini Section:	persistent_connection
Ini Key:	control_path_dir
Environment:	`ANSIBLE_PERSISTENT_CONTROL_PATH_DIR`

PLAYBOOK_VARS_ROOT

Description:	This sets which playbook dirs will be used as a root to process vars plugins, which includes finding host_vars/group_vars The `top` option follows the traditional behaviour of using the top playbook in the chain to find the root directory. The `bottom` option follows the 2.4.0 behaviour of using the current playbook to find the root directory. The `all` option examines from the first parent to the current playbook.
Default:	top
Version Added:	2.4.1
Ini Section:	defaults
Ini Key:	playbook_vars_root
Environment:	`ANSIBLE_PLAYBOOK_VARS_ROOT`

RETRY_FILES_ENABLED

Description:	This controls whether a failed Ansible playbook should create a .retry file.
Type:	bool
Default:	True
Ini Section:	defaults
Ini Key:	retry_files_enabled
Environment:	`ANSIBLE_RETRY_FILES_ENABLED`

RETRY_FILES_SAVE_PATH

Description:	This sets the path in which Ansible will save .retry files when a playbook fails and retry files are enabled.
Type:	path
Default:	None
Ini Section:	defaults
Ini Key:	retry_files_save_path
Environment:	`ANSIBLE_RETRY_FILES_SAVE_PATH`

SHOW_CUSTOM_STATS

Description:	This adds the custom stats set via the set_stats plugin to the default output
Type:	bool
Default:	False
Ini Section:	defaults
Ini Key:	show_custom_stats
Environment:	`ANSIBLE_SHOW_CUSTOM_STATS`

STRING_TYPE_FILTERS

Description:	This list of filters avoids ‘type conversion’ when templating variables Useful when you want to avoid conversion into lists or dictionaries for JSON strings, for example.
Type:	list
Default:	[‘string’, ‘to_json’, ‘to_nice_json’, ‘to_yaml’, ‘ppretty’, ‘json’]
Ini Section:	jinja2
Ini Key:	dont_type_filters
Environment:	`ANSIBLE_STRING_TYPE_FILTERS`

SYSTEM_WARNINGS

Description:	Allows disabling of warnings related to potential issues on the system running ansible itself (not on the managed hosts) These may include warnings about 3rd party packages or other conditions that should be resolved if possible.
Type:	boolean
Default:	True
Ini Section:	defaults
Ini Key:	system_warnings
Environment:	`ANSIBLE_SYSTEM_WARNINGS`

USE_PERSISTENT_CONNECTIONS

Description:	Toggles the use of persistence for connections.
Type:	boolean
Default:	False
Ini Section:	defaults
Ini Key:	use_persistent_connections
Environment:	`ANSIBLE_USE_PERSISTENT_CONNECTIONS`

VARIABLE_PRECEDENCE

Description:	Allows to change the group variable precedence merge order.
Type:	list
Default:	[‘all_inventory’, ‘groups_inventory’, ‘all_plugins_inventory’, ‘all_plugins_play’, ‘groups_plugins_inventory’, ‘groups_plugins_play’]
Version Added:	2.4
Ini Section:	defaults
Ini Key:	precedence
Environment:	`ANSIBLE_PRECEDENCE`

YAML_FILENAME_EXTENSIONS

Description:	Check all of these extensions when looking for ‘variable’ files which should be YAML or JSON or vaulted versions of these. This affects vars_files, include_vars, inventory and vars plugins among others.
Type:	list
Default:	[‘.yml’, ‘.yaml’, ‘.json’]
Ini Section:	defaults
Ini Key:	yaml_valid_extensions
Environment:	`ANSIBLE_YAML_FILENAME_EXT`

Environment Variables

ANSIBLE_CONFIG: Override the default ansible config file

ANSIBLE_MERGE_MULTIPLE_CLI_TAGS

This allows changing how multiple –tags and –skip-tags arguments are handled on the command line. In Ansible up to and including 2.3, specifying –tags more than once will only take the last value of –tags.Setting this config value to True will mean that all of the –tags options will be merged together. The same holds true for –skip-tags.