120 lines
3.1 KiB
ReStructuredText
120 lines
3.1 KiB
ReStructuredText
Dictionaries
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^^^^^^^^^^^^
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You can use the ``dict_kv`` filter to create a single-entry dictionary with ``value | community.general.dict_kv(key)``:
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.. code-block:: yaml+jinja
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- name: Create a single-entry dictionary
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debug:
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msg: "{{ myvar | community.general.dict_kv('thatsmyvar') }}"
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vars:
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myvar: myvalue
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- name: Create a list of dictionaries where the 'server' field is taken from a list
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debug:
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msg: >-
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{{ myservers | map('community.general.dict_kv', 'server')
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| map('combine', common_config) }}
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vars:
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common_config:
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type: host
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database: all
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myservers:
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- server1
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- server2
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This produces:
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.. code-block:: ansible-output
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TASK [Create a single-entry dictionary] **************************************************
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ok: [localhost] => {
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"msg": {
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"thatsmyvar": "myvalue"
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}
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}
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TASK [Create a list of dictionaries where the 'server' field is taken from a list] *******
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ok: [localhost] => {
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"msg": [
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{
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"database": "all",
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"server": "server1",
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"type": "host"
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},
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{
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"database": "all",
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"server": "server2",
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"type": "host"
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}
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]
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}
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.. versionadded:: 2.0.0
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If you need to convert a list of key-value pairs to a dictionary, you can use the ``dict`` function. Unfortunately, this function cannot be used with ``map``. For this, the ``community.general.dict`` filter can be used:
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.. code-block:: yaml+jinja
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- name: Create a dictionary with the dict function
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debug:
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msg: "{{ dict([[1, 2], ['a', 'b']]) }}"
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- name: Create a dictionary with the community.general.dict filter
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debug:
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msg: "{{ [[1, 2], ['a', 'b']] | community.general.dict }}"
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- name: Create a list of dictionaries with map and the community.general.dict filter
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debug:
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msg: >-
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{{ values | map('zip', ['k1', 'k2', 'k3'])
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| map('map', 'reverse')
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| map('community.general.dict') }}
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vars:
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values:
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- - foo
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- 23
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- a
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- - bar
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- 42
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- b
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This produces:
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.. code-block:: ansible-output
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TASK [Create a dictionary with the dict function] ****************************************
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ok: [localhost] => {
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"msg": {
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"1": 2,
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"a": "b"
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}
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}
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TASK [Create a dictionary with the community.general.dict filter] ************************
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ok: [localhost] => {
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"msg": {
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"1": 2,
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"a": "b"
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}
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}
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TASK [Create a list of dictionaries with map and the community.general.dict filter] ******
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ok: [localhost] => {
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"msg": [
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{
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"k1": "foo",
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"k2": 23,
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"k3": "a"
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},
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{
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"k1": "bar",
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"k2": 42,
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"k3": "b"
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}
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]
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}
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.. versionadded:: 3.0.0
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