community.mongodb.mongodb_oplog – Resizes the MongoDB oplog.

Note

This plugin is part of the community.mongodb collection (version 1.2.0).

To install it use: ansible-galaxy collection install community.mongodb.

To use it in a playbook, specify: community.mongodb.mongodb_oplog.

New in version 1.0.0: of community.mongodb

Synopsis

• Resizes the MongoDB oplog.

• This module should only be used with MongoDB 3.6 and above.

• Old MongoDB versions should use an alternative method.

• Consult https://docs.mongodb.com/manual/tutorial/change-oplog-size for further info.

Requirements

The below requirements are needed on the host that executes this module.

• pymongo

Parameters

Parameter	Choices/Defaults	Comments
auth_mechanism string	Choices: SCRAM-SHA-256 SCRAM-SHA-1 MONGODB-X509 GSSAPI PLAIN	Authentication type.
compact boolean	Choices: no ← yes	Runs compact against the oplog.rs collection in the local database to reclaim disk space. Performs no actions against PRIMARY members. The MongoDB user must have the compact role on the local database for this feature to work.
connection_options list / elements=raw		Additional connection options. Supply as a list of dicts or strings containing key value pairs seperated with '='.
login_database string	Default: "admin"	The database where login credentials are stored.
login_host string	Default: "localhost"	The host running MongoDB instance to login to.
login_password string		The password used to authenticate with. Required when login_user is specified.
login_port integer	Default: 27017	The MongoDB server port to login to.
login_user string		The MongoDB user to login with. Required when login_password is specified.
oplog_size_mb integer / required		New size of the oplog in MB.
ssl boolean	Choices: no ← yes	Whether to use an SSL connection when connecting to the database.
ssl_ca_certs string		The ssl_ca_certs option takes a path to a CA file.
ssl_cert_reqs string	Choices: CERT_NONE CERT_OPTIONAL CERT_REQUIRED ←	Specifies whether a certificate is required from the other side of the connection, and whether it will be validated if provided.
ssl_certfile string		Present a client certificate using the ssl_certfile option.
ssl_crlfile string		The ssl_crlfile option takes a path to a CRL file.
ssl_keyfile string		Private key for the client certificate.
ssl_pem_passphrase string		Passphrase to decrypt encrypted private keys.
ver string	Default: "3.6"	Version of MongoDB this module is supported from. You probably don't want to modifiy this. Included here for internal testing.

Notes

Note

• Requires the pymongo Python package on the remote host, version 2.4.2+. This can be installed using pip or the OS package manager. @see http://api.mongodb.org/python/current/installation.html

Examples

- name: Resize oplog to 16 gigabytes, or 16000 megabytes
  community.mongodb.mongodb_oplog:
    oplog_size_mb: 16000

- name: Resize oplog to 8 gigabytes and compact secondaries to reclaim space
  community.mongodb.mongodb_oplog:
    oplog_size_mb: 8000
    compact: true

Return Values

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

Key	Returned	Description
changed boolean	success	Whether the member oplog was modified.
compacted boolean	success	Whether the member oplog was compacted.
failed boolean	failed	If something went wrong
msg string	success	A short description of what happened.

Authors

• Rhys Campbell (@rhysmeister)