MongoDB
lookup runs the find() command on a given collection on a given MongoDB server.The below requirements are needed on the local master node that executes this lookup.
Parameter | Choices/Defaults | Configuration | Comments |
---|---|---|---|
collection - / required | Name of the collection which the query will be made | ||
connect_string - | Default: "mongodb://localhost/" | Can be any valid MongoDB connection string, supporting authentication, replicasets, etc. | |
database - / required | Name of the database which the query will be made | ||
filter dictionary | Default: "{}" | Criteria of the output | |
limit integer | How many results should be shown | ||
projection dictionary | Default: "{}" | Fields you want returned | |
skip integer | How many results should be skipped | ||
sort list | Default: "[]" | Sorting rules. Please notice the constats are replaced by strings. |
Note
- hosts: all gather_facts: false vars: mongodb_parameters: #mandatory parameters database: 'local' #optional collection: "startup_log" connection_string: "mongodb://localhost/" extra_connection_parameters: { "ssl" : True , "ssl_certfile": /etc/self_signed_certificate.pem" } #optional query parameters, we accept any parameter from the normal mongodb query. filter: { "hostname": "batman" } projection: { "pid": True , "_id" : False , "hostname" : True } skip: 0 limit: 1 sort: [ [ "startTime" , "ASCENDING" ] , [ "age", "DESCENDING" ] ] tasks: - debug: msg="Mongo has already started with the following PID [{{ item.pid }}]" with_mongodb: "{{mongodb_parameters}}"
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Hint
Configuration entries for each entry type have a low to high priority order. For example, a variable that is lower in the list will override a variable that is higher up.
© 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.9/plugins/lookup/mongodb.html