community.mongodb.mongodb_stepdown module – Step down the MongoDB node from a PRIMARY state.

Note

This module is part of the community.mongodb collection (version 1.4.0).

You might already have this collection installed if you are using the ansible package. It is not included in ansible-core. To check whether it is installed, run ansible-galaxy collection list.

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

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

New in version 1.0.0: of community.mongodb

Synopsis

  • Step down the MongoDB node from the PRIMARY state if it has that status. Returns OK immediately if the member is already in the SECONDARY or ARBITER states. Will wait until a timeout for the member state to reach SECONDARY or PRIMARY, if the member state is currently STARTUP, RECOVERING, STARTUP2 or ROLLBACK, before taking any needed action.

Requirements

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

  • pymongo

Parameters

Parameter

Comments

auth_mechanism

string

Authentication type.

Choices:

  • SCRAM-SHA-256

  • SCRAM-SHA-1

  • MONGODB-X509

  • GSSAPI

  • PLAIN

connection_options

list / elements=raw

Additional connection options.

Supply as a list of dicts or strings containing key value pairs seperated with ‘=’.

force

boolean

Optional. A boolean that determines whether the primary steps down if no electable and up-to-date secondary exists within the wait period.

Choices:

  • no ← (default)

  • yes

interval

integer

The number of seconds to wait between poll executions.

Default: 30

login_database

string

The database where login credentials are stored.

Default: “admin”

login_host

string

The host running MongoDB instance to login to.

Default: “localhost”

login_password

string

The password used to authenticate with.

Required when login_user is specified.

login_port

integer

The MongoDB server port to login to.

Default: 27017

login_user

string

The MongoDB user to login with.

Required when login_password is specified.

poll

integer

The maximum number of times query for the member status.

Default: 1

secondary_catch_up

integer

The secondaryCatchUpPeriodSecs parameter for the stepDown command.

The number of seconds that mongod will wait for an electable secondary to catch up to the primary.

Default: 10

ssl

aliases: tls

boolean

Whether to use an SSL connection when connecting to the database.

Choices:

  • no ← (default)

  • yes

ssl_ca_certs

aliases: tlsCAFile

string

The ssl_ca_certs option takes a path to a CA file.

ssl_cert_reqs

aliases: tlsAllowInvalidCertificates

string

Specifies whether a certificate is required from the other side of the connection, and whether it will be validated if provided.

Choices:

  • CERT_NONE

  • CERT_OPTIONAL

  • CERT_REQUIRED ← (default)

ssl_certfile

aliases: tlsCertificateKeyFile

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

aliases: tlsCertificateKeyFilePassword

string

Passphrase to decrypt encrypted private keys.

stepdown_seconds

integer

The number of seconds to step down the primary, during which time the stepdown member is ineligible for becoming primary.

Default: 60

strict_compatibility

boolean

Enforce strict requirements for pymongo and MongoDB software versions

Choices:

  • no

  • yes ← (default)

Notes

Note

Examples

- name: Step down the current MongoDB member
  community.mongodb.mongodb_stepdown:
    login_user: admin
    login_password: secret

- name: Step down the current MongoDB member, poll a maximum of 5 times if member state is recovering
  community.mongodb.mongodb_stepdown:
    login_user: admin
    login_password: secret
    poll: 5
    interval: 10

Return Values

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

Key

Description

failed

boolean

If the module had failed or not.

Returned: always

iteration

integer

Number of times the module has queried the replicaset status.

Returned: always

msg

string

Status message.

Returned: always

Authors

  • Rhys Campbell (@rhysmeister)