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community.general.read_csv – Read a CSV file

Note

This plugin is part of the community.general collection (version 3.8.1).

You might already have this collection installed if you are using the ansible package. It is not included in ansible-core. To check whether it is installed, run ansible-galaxy collection list.

To install it, use: ansible-galaxy collection install community.general.

To use it in a playbook, specify: community.general.read_csv.

Synopsis
Parameters
Notes
Examples
Return Values

Synopsis

Read a CSV file and return a list or a dictionary, containing one dictionary per row.

Parameters

Parameter	Choices/Defaults	Comments
delimiter string		A one-character string used to separate fields. When using this parameter, you change the default value used by `dialect`. The default value depends on the dialect used.
dialect string	Default: "excel"	The CSV dialect to use when parsing the CSV file. Possible values include `excel`, `excel-tab` or `unix`.
fieldnames list / elements=string		A list of field names for every column. This is needed if the CSV does not have a header.
key string		The column name used as a key for the resulting dictionary. If `key` is unset, the module returns a list of dictionaries, where each dictionary is a row in the CSV file.
path path / required		The CSV filename to read data from. aliases: filename
skipinitialspace boolean	Choices: no yes	Whether to ignore any whitespaces immediately following the delimiter. When using this parameter, you change the default value used by `dialect`. The default value depends on the dialect used.
strict boolean	Choices: no yes	Whether to raise an exception on bad CSV input. When using this parameter, you change the default value used by `dialect`. The default value depends on the dialect used.
unique boolean	Choices: no yes ←	Whether the `key` used is expected to be unique.

Notes

Note

Ansible also ships with the csvfile lookup plugin, which can be used to do selective lookups in CSV files from Jinja.

Examples

# Example CSV file with header
#
#   name,uid,gid
#   dag,500,500
#   jeroen,501,500

# Read a CSV file and access user 'dag'
- name: Read users from CSV file and return a dictionary
  community.general.read_csv:
    path: users.csv
    key: name
  register: users
  delegate_to: localhost

- ansible.builtin.debug:
    msg: 'User {{ users.dict.dag.name }} has UID {{ users.dict.dag.uid }} and GID {{ users.dict.dag.gid }}'

# Read a CSV file and access the first item
- name: Read users from CSV file and return a list
  community.general.read_csv:
    path: users.csv
  register: users
  delegate_to: localhost

- ansible.builtin.debug:
    msg: 'User {{ users.list.1.name }} has UID {{ users.list.1.uid }} and GID {{ users.list.1.gid }}'

# Example CSV file without header and semi-colon delimiter
#
#   dag;500;500
#   jeroen;501;500

# Read a CSV file without headers
- name: Read users from CSV file and return a list
  community.general.read_csv:
    path: users.csv
    fieldnames: name,uid,gid
    delimiter: ';'
  register: users
  delegate_to: localhost

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key	Returned	Description
dict dictionary	success	The CSV content as a dictionary. Sample: {'dag': {'gid': 500, 'name': 'dag', 'uid': 500}, 'jeroen': {'gid': 500, 'name': 'jeroen', 'uid': 501}}
list list / elements=string	success	The CSV content as a list. Sample: [{'gid': 500, 'name': 'dag', 'uid': 500}, {'gid': 500, 'name': 'jeroen', 'uid': 501}]

Authors

Dag Wieers (@dagwieers)

© 2012–2018 Michael DeHaan
© 2018–2021 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/latest/collections/community/general/read_csv_module.html