81 lines
2.3 KiB
ReStructuredText
81 lines
2.3 KiB
ReStructuredText
Creating identifiers
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--------------------
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The following filters allow to create identifiers.
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Hashids
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^^^^^^^
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`Hashids <https://hashids.org/>`_ allow to convert sequences of integers to short unique string identifiers. This filter needs the `hashids Python library <https://pypi.org/project/hashids/>`_ installed on the controller.
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.. code-block:: yaml+jinja
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- name: "Create hashid"
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debug:
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msg: "{{ [1234, 5, 6] | community.general.hashids_encode }}"
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- name: "Decode hashid"
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debug:
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msg: "{{ 'jm2Cytn' | community.general.hashids_decode }}"
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This produces:
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.. code-block:: ansible-output
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TASK [Create hashid] **********************************************************************
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ok: [localhost] => {
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"msg": "jm2Cytn"
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}
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TASK [Decode hashid] **********************************************************************
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ok: [localhost] => {
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"msg": [
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1234,
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5,
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6
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]
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}
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The hashids filters accept keyword arguments to allow fine-tuning the hashids generated:
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:salt: String to use as salt when hashing.
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:alphabet: String of 16 or more unique characters to produce a hash.
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:min_length: Minimum length of hash produced.
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.. versionadded: 3.0.0
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Random MACs
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^^^^^^^^^^^
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You can use the ``random_mac`` filter to complete a partial `MAC address <https://en.wikipedia.org/wiki/MAC_address>`_ to a random 6-byte MAC address.
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.. code-block:: yaml+jinja
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- name: "Create a random MAC starting with ff:"
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debug:
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msg: "{{ 'FF' | community.general.random_mac }}"
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- name: "Create a random MAC starting with 00:11:22:"
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debug:
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msg: "{{ '00:11:22' | community.general.random_mac }}"
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This produces:
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.. code-block:: ansible-output
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TASK [Create a random MAC starting with ff:] **********************************************
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ok: [localhost] => {
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"msg": "ff:69:d3:78:7f:b4"
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}
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TASK [Create a random MAC starting with 00:11:22:] ****************************************
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ok: [localhost] => {
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"msg": "00:11:22:71:5d:3b"
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}
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You can also initialize the random number generator from a seed to create random-but-idempotent MAC addresses:
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.. code-block:: yaml+jinja
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"{{ '52:54:00' | community.general.random_mac(seed=inventory_hostname) }}"
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