community.general.lmdb_kv – fetch data from LMDB

• Synopsis
• Requirements
• Parameters
• Examples
• Return Values

Synopsis

• This lookup returns a list of results from an LMDB DB corresponding to a list of items given to it

Requirements

The below requirements are needed on the local controller node that executes this lookup.

• lmdb (python library https://lmdb.readthedocs.io/en/release/)

Parameters

Parameter	Choices/Defaults	Configuration	Comments
_terms string			list of keys to query
db string	Default: "ansible.mdb"		path to LMDB database

Examples

- name: query LMDB for a list of country codes
  ansible.builtin.debug:
    msg: "{{ query('community.general.lmdb_kv', 'nl', 'be', 'lu', db='jp.mdb') }}"

- name: use list of values in a loop by key wildcard
  ansible.builtin.debug:
    msg: "Hello from {{ item.0 }} a.k.a. {{ item.1 }}"
  vars:
    - lmdb_kv_db: jp.mdb
  with_community.general.lmdb_kv:
     - "n*"

- name: get an item by key
  ansible.builtin.assert:
    that:
      - item == 'Belgium'
    vars:
      - lmdb_kv_db: jp.mdb
    with_community.general.lmdb_kv:
      - be

Return Values

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

Key	Returned	Description
_raw list / elements=any	success	value(s) stored in LMDB

Authors

• Jan-Piet Mens (@jpmens)