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ansible/lib/ansible/plugins/doc_fragments/template_common.py

124 lines
4.7 KiB
Python

# -*- coding: utf-8 -*-
# Copyright (c) 2019 Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
class ModuleDocFragment(object):
# Standard template documentation fragment, use by template and win_template.
DOCUMENTATION = r'''
description:
- Templates are processed by the L(Jinja2 templating language,http://jinja.pocoo.org/docs/).
- Documentation on the template formatting can be found in the
L(Template Designer Documentation,http://jinja.pocoo.org/docs/templates/).
- Additional variables listed below can be used in templates.
- C(ansible_managed) (configurable via the C(defaults) section of C(ansible.cfg)) contains a string which can be used to
describe the template name, host, modification time of the template file and the owner uid.
- C(template_host) contains the node name of the template's machine.
- C(template_uid) is the numeric user id of the owner.
- C(template_path) is the path of the template.
- C(template_fullpath) is the absolute path of the template.
- C(template_destpath) is the path of the template on the remote system (added in 2.8).
- C(template_run_date) is the date that the template was rendered.
options:
src:
description:
- Path of a Jinja2 formatted template on the Ansible controller.
- This can be a relative or an absolute path.
- The file must be encoded with C(utf-8) but I(output_encoding) can be used to control the encoding of the output
template.
type: path
required: yes
dest:
description:
- Location to render the template to on the remote machine.
type: path
required: yes
newline_sequence:
description:
- Specify the newline sequence to use for templating files.
type: str
choices: [ '\n', '\r', '\r\n' ]
default: '\n'
version_added: '2.4'
block_start_string:
description:
- The string marking the beginning of a block.
type: str
default: '{%'
version_added: '2.4'
block_end_string:
description:
- The string marking the end of a block.
type: str
default: '%}'
version_added: '2.4'
variable_start_string:
description:
- The string marking the beginning of a print statement.
type: str
default: '{{'
version_added: '2.4'
variable_end_string:
description:
- The string marking the end of a print statement.
type: str
default: '}}'
version_added: '2.4'
comment_start_string:
description:
- The string marking the beginning of a comment statement.
type: str
version_added: '2.12'
comment_end_string:
description:
- The string marking the end of a comment statement.
type: str
version_added: '2.12'
trim_blocks:
description:
- Determine when newlines should be removed from blocks.
- When set to C(yes) the first newline after a block is removed (block, not variable tag!).
type: bool
default: yes
version_added: '2.4'
lstrip_blocks:
description:
- Determine when leading spaces and tabs should be stripped.
- When set to C(yes) leading spaces and tabs are stripped from the start of a line to a block.
type: bool
default: no
version_added: '2.6'
force:
description:
- Determine when the file is being transferred if the destination already exists.
- When set to C(yes), replace the remote file when contents are different than the source.
- When set to C(no), the file will only be transferred if the destination does not exist.
type: bool
default: yes
output_encoding:
description:
- Overrides the encoding used to write the template file defined by C(dest).
- It defaults to C(utf-8), but any encoding supported by python can be used.
- The source template file must always be encoded using C(utf-8), for homogeneity.
type: str
default: utf-8
version_added: '2.7'
notes:
- Including a string that uses a date in the template will result in the template being marked 'changed' each time.
- Since Ansible 0.9, templates are loaded with C(trim_blocks=True).
- >
Also, you can override jinja2 settings by adding a special header to template file.
i.e. C(#jinja2:variable_start_string:'[%', variable_end_string:'%]', trim_blocks: False)
which changes the variable interpolation markers to C([% var %]) instead of C({{ var }}).
This is the best way to prevent evaluation of things that look like, but should not be Jinja2.
- Using raw/endraw in Jinja2 will not work as you expect because templates in Ansible are recursively
evaluated.
- To find Byte Order Marks in files, use C(Format-Hex <file> -Count 16) on Windows, and use C(od -a -t x1 -N 16 <file>)
on Linux.
'''