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Automation Configuration

Overview

The Automation uses an automation configuration to determine the desired state of a MongoDB deployment and to effect changes as needed. If you modify the deployment through the Ops Manager web interface, you never need manipulate this configuration.

If you are using the Automation without Ops Manager, you can construct and distribute the configuration manually.

Optional fields are marked as such.

A field that takes a <number> as its value can take integers and floating point numbers.

Configuration Version

This lists the version of the automation configuration.

"version" : "<integer>"
Name Type Necessity Description
version integer Required Revision of this automation configuration file.

Download Base

Ops Manager downloads automatic versions and runs starting scripts in the directory set in options.downloadBase.

"options" : {
  "downloadBase" : "<string>",
}
Name Type Necessity Description
options object Required Path for automatic downloads of new versions.
options.downloadBase string Required Directory on Linux and UNIX (including macOS) platforms for automatic version downloads and startup scripts.

MongoDB Versions Specifications

The mongoDbVersions[n] array defines specification objects for the MongoDB instances found in the processes array. Each MongoDB instance in the processes array must have a specification object in this array.

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"mongoDbVersions[n]" : [
  {
   "name" : "<string>",
    "builds" : [
      {
       "platform" : "<string>",
        "url" : "<string>",
        "gitVersion" : "<string>",
        "modules" : [ "<string>", ... ],
        "architecture" : "<string>",
        "bits" : "<integer>",
        "win2008plus" : "<Boolean>",
        "winVCRedistUrl" : "<string>",
        "winVCRedistOptions" : [ "<string>", ... ],
        "winVCRedistDll" : "<string>",
        "winVCRedistVersion" : "<string>"
      },
      ...
    ],
  },
  ...
]
Name Type Necessity Description
mongoDbVersions[n] array of objects Required Specification objects for the MongoDB instances found in the processes array. Each MongoDB instance in processes must have a specification object in mongoDbVersions[n].
mongoDbVersions[n].name string Required Name of the specification object. The specification object is attached to a MongoDB instance through the instance’s processes.version parameter in this configuration.
mongoDbVersions[n].builds[k] array of objects Required Builds available for this MongoDB instance.
mongoDbVersions[n].builds[k].platform string Required Platform for this MongoDB instance.
mongoDbVersions[n].builds[k].url string Required URL from which to download MongoDB for this instance.
mongoDbVersions[n].builds[k].gitVersion string Required Commit identifier that identifies the state of the code used to build the MongoDB process. The MongoDB buildInfo command returns the gitVersion identifier.
mongoDbVersions[n].builds[k].modules array Required List of modules for this version. Corresponds to the modules parameter that the buildInfo command returns.
mongoDbVersions[n].builds[k].architecture string Required Processor’s architecture. Ops Manager accepts amd64 or ppc64le.
mongoDbVersions[n].builds[k].bits integer Deprecated Processor’s bus width. Don’t remove or make modifications to this parameter.
mongoDbVersions[n].builds[k].win2008plus Boolean Optional Set to true if this is a Windows build that requires either Windows 7 later or Windows Server 2008 R2 or later.
mongoDbVersions[n].builds[k].winVCRedistUrl string Optional URL from which the required version of the Microsoft Visual C++ redistributable can be downloaded.
mongoDbVersions[n].builds[k].winVCRedistOptions array of strings Optional String values that list the command-line options to be specified when running the Microsoft Visual C++ redistributable installer. Each command-line option is a separate string in the array.
mongoDbVersions[n].builds[k].winVCRedistDll string Optional Name of the Microsoft Visual C++ runtime DLL file that the agent checks to determine if a new version of the Microsoft Visual C++ redistributable is needed.
mongoDbVersions[n].builds[k].winVCRedistVersion string Optional Minimum version of the Microsoft Visual C++ runtime DLL that must be present to skip over the installation of the Microsoft Visual C++ redistributable.

Automation

agentVersion specifies the version of the MongoDB Agent.

Note

While you can update the MongoDB Agent version through this configuration property, you should use the Update Agent Versions endpoint to ensure your versions are up to date.

"agentVersion" : {
  "name" : "<string>",
  "directoryUrl" : "<string>"
}
Name Type Necessity Description
agentVersion object Optional Version of the MongoDB Agent to run. If the running version does not match this setting, the MongoDB Agent downloads the specified version, shuts itself down, and starts the new version.
agentVersion.name string Optional Desired version of the MongoDB Agent.
agentVersion.directoryUrl string Optional URL from which to download the MongoDB Agent.

Monitoring

The monitoringVersions array specifies the version of the Monitoring Agent. Ops Manager has made this parameter obsolete. To update the monitoring log settings, use the Update Monitoring Configuration Settings endpoint.

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"monitoringVersions" : [
  {
    "name" : "<string>",
    "hostname" : "<string>",
    "urls" : {
      "<platform1>" : {
        "<build1>" : "<string>",
        ...,
        "default" : "<string>"
      },
      ...
    },
    "baseUrl" : "<string>",
    "logPath" : "<string>",
    "logRotate" : {
      "sizeThresholdMB" : <number>,
      "timeThresholdHrs" : <integer>,
      "numUncompressed": <integer>,
      "percentOfDiskspace" : <number>,
      "numTotal" : <integer>
    }
  },
  ...
]
Name Type Necessity Description
monitoringVersions array of objects Optional Objects that define version information for each Monitoring Agent.
monitoringVersions.name string Required

Version of the Monitoring Agent.

Important

This property is read-only. Any modifications made to this property are not reflected when updating the Monitoring Agent through the API.

To update the Monitoring Agent version, use this endpoint.

monitoringVersions.hostname string Required FQDN of the host that runs the Monitoring Agent. If the Monitoring Agent is not running on the host, Ops Manager installs the agent from the location specified in monitoringVersions.urls.
monitoringVersions.urls object Required Platform- and build-specific URLs from which to download the Monitoring Agent.
monitoringVersions.urls.<platform> object Required Label that identifies an operating system and its version. The field contains an object with key-value pairs, where each key is either the name of a build or default and each value is a URL for downloading the Monitoring Agent. The object must include the default key set to the default download URL for the platform.
monitoringVersions.baseUrl string Required Base URL used for the mmsBaseUrl setting.
monitoringVersions.logPath string Optional Directory where the agent stores its logs. The default is to store logs in /dev/null.
monitoringVersions.logRotate object Optional Enables log rotation for the MongoDB logs for a process.
monitoringVersions.logRotate.sizeThresholdMB number Required Maximum size in MB for an individual log file before rotation.
monitoringVersions.logRotate.timeThresholdHrs integer Required Maximum time in hours for an individual log file before rotation.
monitoringVersions.logRotate.numUncompressed integer Optional Maximum number of total log files to leave uncompressed, including the current log file. The default is 5. In earlier versions of Ops Manager, this field was named maxUncompressed. The earlier name is still recognized, though the new version is preferred.
monitoringVersions.logRotate.percentOfDiskspace number Optional Maximum percentage of total disk space all log files should take up before deletion. The default is .02.
monitoringVersions.logRotate.numTotal integer Optional Total number of log files. If a number is not specified, the total number of log files defaults to 0 and is determined by other monitoringVersions.logRotate settings.

Backup

The backupVersions array specifies the version of the Backup Agent. Ops Manager has made this parameter obsolete. To update the backup log settings, use the Update Backup Configuration Settings endpoint.

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"backupVersions[n]" : [
  {
   "name" : "<string>",
    "hostname" : "<string>",
    "urls" : {
     "<platform1>" : {
       "<build1>" : "<string>",
        ...,
        "default" : "<string>"
      },
      ...
    },
    "baseUrl" : "<string>",
    "logPath" : "<string>",
    "logRotate" : {
     "sizeThresholdMB" : "<number>",
      "timeThresholdHrs" : "<integer>",
      "numUncompressed": "<integer>",
      "percentOfDiskspace" : "<number>",
      "numTotal" : "<integer>"
    }
  },
  ...
]
Name Type Necessity Description
backupVersions[n] array of objects Optional Objects that define version information for each Backup Agent.
backupVersions[n].name string Required

Version of the Backup Agent.

Important

This property is read-only. Any modifications made to this property are not reflected when updating the Backup Agent through the API. To update the Backup Agent version, see this endpoint.

backupVersions[n].hostname string Required FQDN of the host that runs the Backup Agent. If the Backup Agent is not running on the host, Ops Manager installs the agent from the location specified in backupVersions[n].urls.
backupVersions[n].urls object Required Platform- and build-specific URLs from which to download the Backup Agent.
backupVersions[n].urls.<platform> object Required Label that identifies an operating system and its version. The field contains an object with key-value pairs, where each key is either the name of a build or default and each value is a URL for downloading the Backup Agent. The object must include the default key set to the default download URL for the platform.
backupVersions[n].baseUrl string Required Base URL used for the mothership and https settings in the Custom Settings. For example, for “baseUrl”=https://cloud.mongodb.com, the backup configuration fields would have these values: mothership=api-backup.mongodb.com and https”=true.
backupVersions[n].logPath string Optional Directory where the agent stores its logs. The default is to store logs in /dev/null.
backupVersions[n].logRotate object Optional Enables log rotation for the MongoDB logs for a process.
backupVersions[n].logRotate.sizeThresholdMB number Required Maximum size in MB for an individual log file before rotation.
backupVersions[n].logRotate.timeThresholdHrs integer Required Maximum time in hours for an individual log file before rotation.
backupVersions[n].logRotate.numUncompressed integer Optional Maximum number of total log files to leave uncompressed, including the current log file. The default is 5.
backupVersions[n].logRotate.percentOfDiskspace number Optional Maximum percentage of total disk space all log files should take up before deletion. The default is .02.
backupVersions[n].logRotate.numTotal integer Optional If a number is not specified, the total number of log files defaults to 0 and is determined by other backupVersion.logRotate settings.

MongoDB Instances

The processes array determines the configuration of your MongoDB instances. Using this array, you can:

  • Restore an instance.
  • Start an initial sync process on one or more MongoDB instances.
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"processes": [{
  "<args>": {},
  "alias": "<string>",
  "authSchemaVersion": "<integer>",
  "backupRestoreUrl": "<string>",
  "cluster": "<string>",
  "defaultRWConcern": {
    "defaultReadConcern": {
      "level": "<string>"
    },
    "defaultWriteConcern": {
      "j": "<boolean>",
      "w": "<string>",
      "wtimeout": "<integer>"
    }
  }
  "disabled": "<Boolean>",
  "featureCompatibilityVersion": "<string>",
  "hostname": "<string>",
  "lastCompact" : "<dateInIso8601Format>",
  "lastRestart" : "<dateInIso8601Format>",
  "lastResync" : "<dateInIso8601Format>",
  "lastKmipMasterKeyRotation" : "<dateInIso8601Format>",
  "logRotate": {
    "sizeThresholdMB": "<number>",
    "timeThresholdHrs": "<integer>",
    "numUncompressed": "<integer>",
    "percentOfDiskspace": "<number>",
    "numTotal": "<integer>"
  },
  "manualMode": "<Boolean>",
  "name": "<string>",
  "numCores": "<integer>",
  "processType": "<string>",
  "version": "<string>"
}]
Name Type Necessity Description
processes array Required Contains objects that define the mongos and mongod instances that Ops Manager monitors. Each object defines a different instance.
processes[n].args2_6 object Required

MongoDB configuration object for MongoDB versions 2.6 and later.

processes[n].alias string Optional Hostname alias (often a DNS CNAME) for the host on which the process runs. If an alias is specified, the MongoDB Agent prefers this alias over the hostname specified in processes.hostname when connecting to the host. You can also specify this alias in replicaSets.host and sharding.configServer.
processes[n].authSchemaVersion integer Required

Schema version of the user credentials for MongoDB database users. This should match all other elements of the processes array that belong to the same cluster.

  • Ops Manager accepts 3 and 5 for this parameter.
  • MongoDB 3.x and 4.x clusters default to 5.
  • MongoDB 2.6 clusters default to 3.

See also

Upgrade to SCRAM-SHA-1 in the MongoDB 3.0 release notes.

processes[n].backupRestoreUrl string Optional

Delivery URL for the restore. Ops Manager sets this when creating a restore.

processes[n].cluster string Conditional

Name of the sharded cluster. Set this value to the same value in the sharding.name parameter in the sharding array for the mongos.

defaultRWConcern.defaultReadConcern.level string Optional

Consistency and isolation properties set for the data read from replica sets and replica set shards. MongoDB Atlas accepts the following values:

  • “available”
  • “local”
  • “majority”
defaultRWConcern.defaultWriteConcern.j boolean Optional Flag that indicates whether the write acknowledgement must be written to the on-disk journal.
defaultRWConcern.defaultWriteConcern.w string Optional

Desired number of mongod instances that must acknowledge a write operation in a replica sets and replica set shards. MongoDB Atlas accepts the following values:

  • Any number 0 or greater
  • “majority”
defaultRWConcern.defaultWriteConcern.wtimeout number Optional Desired time limit for the write concern expressed in milliseconds. Set this value when you set defaultRWConcern.defaultWriteConcern.w to a value greater than 1.
processes[n].disabled Boolean Optional Flag that indicates if this process should be shut down. Set to true to shut down the process.
processes[n].featureCompatibilityVersion string Required

Version of MongoDB with which this process has feature compatibility. Changing this value can enable or disable certain features that persist data incompatible with MongoDB versions earlier or later than the featureCompatibilityVersion you choose.

  • Ops Manager accepts 3.2, 3.6, 4.2 and 4.4 as parameter values. If you have an existing deployment, Ops Manager only accepts a featureCompatibilityVersion equal to or one release older than the MongoDB version you deployed. To learn which of these parameter values is supported for each MongoDB version, and which features each of these values enable or disable, see setFeatureCompatibilityVersion in the MongoDB Manual.
  • Ops Manager sets this parameter to match the MongoDB version for new deployments.
  • Ops Manager doesn’t automatically increment this parameter when you upgrade a host from one MongoDB version to the next.
processes[n].hostname string Required Name of the host that serves this process. This defaults to localhost.
processes[n].lastCompact string Optional

Timestamp in ISO 8601 date and time format in UTC when Ops Manager last reclaimed free space on a cluster’s disks. During certain operations, MongoDB might move or delete data but it doesn’t free the currently unused space. Ops Manager reclaims the disk space in a rolling fashion across members of the replica set or shards.

To reclaim this space:

  • Immediately, set this value to the current time as an ISO 8601 timestamp.
  • Later, set this value to a future ISO 8601 timestamp. Ops Manager reclaims the space after the current time passes the provided timestamp.

To remove any ambiguity as to when you intend to reclaim the space on the cluster’s disks, specify a time zone with your ISO 8601 timestamp. For example, to set processes.lastCompact to 28 January 2021 at 2:43:52 PM US Central Standard Time, use "processes.lastCompact" : "2021-01-28T14:43:52-06:00"

processes[n].lastRestart string Optional Timestamp in ISO 8601 date and time format in UTC when Ops Manager last restarted this process. If you set this parameter to the current timestamp, Ops Manager forces a restart of this process after you upload this configuration. If you set this parameter for multiple processes in the same cluster, the Ops Manager restarts the selected processes in a rolling fashion across members of the replica set or shards.
processes[n].lastResync string Optional

Timestamp in ISO 8601 date and time format in UTC of the last initial sync process that Ops Manager performed on the node.

To trigger the init sync process on the node immediately, set this value to the current time as an ISO 8601 timestamp.

Warning

Use this parameter with caution. During initial sync, Automation removes the entire contents of the node’s dbPath directory.

If you set this parameter:

  • On the secondary node, the MongoDB Agent checks whether the specified timestamp is later than the time of the last resync, and if confirmed, starts init sync on this node.

    Example

    To set processes.lastResync on the secondary node to 28 May 2021 at 2:43:52 PM US CentralStandard Time, use:

    "processes.lastResync" : "2021-05-28T14:43:52-06:00".

    If the MongoDB Agent confirms that this timestamp is later than the recorded time of the last resync, it starts init sync on the node.

  • On the primary node, the MongoDB Agent waits until you ask the primary node to become the secondary with the rs.stepDown() method, and then starts init sync on this node.

  • On all of the nodes in the same cluster, including the primary, the MongoDB Agent checks whether the specified timestamp is later than the time of the last resync, and if confirmed, starts init sync on the secondary nodes in a rolling fashion. The MongoDB Agent waits until you ask the primary node to become the secondary with the rs.stepDown() method, and then starts init sync on this node.

See also

Initial Sync

processes[n].lastKmipMasterKeyRotation string Optional Timestamp in ISO 8601 date and time format in UTC when Ops Manager last rotated the master KMIP key. If you set this parameter to the current timestamp, Ops Manager rotate the key after you upload this configuration.
processes[n].logRotate object Optional MongoDB configuration object for rotating the MongoDB logs of a process.
processes[n].logRotate. numTotal integer Optional Total number of log files that Ops Manager retains. If you don’t set this value, the total number of log files defaults to 0. Ops Manager bases rotation on your other processes.logRotate settings.
processes[n].logRotate. numUncompressed integer Optional Maximum number of total log files to leave uncompressed, including the current log file. The default is 5.
processes[n].logRotate. percentOfDiskspace number Optional

Maximum percentage of total disk space that Ops Manager can use to store the log files expressed as decimal. If this limit is exceeded, Ops Manager deletes compressed log files until it meets this limit. Ops Manager deletes the oldest log files first.

The default is 0.02.

processes[n].logRotate. sizeThresholdMB number Required Maximum size in MB for an individual log file before Ops Manager rotates it. Ops Manager rotates the log file immediately if it meets the value given in either this sizeThresholdMB or the processes.logRotate.timeThresholdHrs limit.
processes[n].logRotate. timeThresholdHrs integer Required

Maximum duration in hours for an individual log file before the next rotation. The time is since the last rotation.

Ops Manager rotates the log file once the file meets either this timeThresholdHrs or the processes.logRotate.sizeThresholdMB limit.

processes[n].manualMode Boolean Optional

Flag that indicates if MongoDB Agent automates this process.

  • This defaults to false.
  • Set to true to disable Automation on this process. The MongoDB Agent takes no further actions on this process.
  • Set to false to enable Automation on this process. The MongoDB Agent automates actions on this process.
processes[n].name string Required Unique name to identify the instance.
processes[n].numCores integer Optional Number of cores that Ops Manager should bind to this process. The MongoDB Agent distributes processes across the cores as evenly as possible.
processes[n].processType string Required Type of MongoDB process being run. Ops Manager accepts mongod or mongos for this parameter.
processes[n].version string Required Name of the mongoDbVersions specification used with this instance.

Replica Sets

The replicaSets array defines each replica set’s configuration. This field is required for deployments with replica sets.

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"replicaSets":
[
  {
    "_id": "<string>",
    "protocolVersion": "<string>",
    "members":
    [
      {
        "_id": "<integer>",
        "host": "<string>",
        "arbiterOnly": "<boolean>",
        "buildIndexes": "<boolean>",
        "hidden": "<boolean>",
        "priority": "<number>",
        "tags": "<object>",
        "secondaryDelaySecs": "<integer>",
        "votes": "<number>"
      },{
        "_id": "<integer>",
        "host": "<string>",
        "arbiterOnly": "<boolean>",
        "buildIndexes": "<boolean>",
        "hidden": "<boolean>",
        "priority": "<number>",
        "tags": "<object>",
        "secondaryDelaySecs": "<integer>",
        "votes": "<number>"
      },{
        "_id": "<integer>",
        "host": "<string>",
        "arbiterOnly": "<boolean>",
        "buildIndexes": "<boolean>",
        "hidden": "<boolean>",
        "priority": "<number>",
        "tags": "<object>",
        "secondaryDelaySecs": "<integer>",
        "votes": "<number>"
      }
    ],
    "force":
    {
      "currentVersion": "<integer>"
    }
  }
]
Name Type Necessity Description
replicaSets array Optional

Configuration of each replica set. The MongoDB Agent uses the values in this array to create valid replica set configuration documents. The agent regularly checks that replica sets are configured correctly. If a problem occurs, the agent reconfigures the replica set according to its configuration document. The array can contain the following top-level fields from a replica set configuration document: _id; version; and members.

See also

replSetGetConfig

replicaSets[n]._id string Required The name of the replica set.
replicaSets[n].protocolVersion string Optional Protocol version of the replica set.
replicaSets[n].members array Optional

Objects that define each member of the replica set. The members.host field must specify the host’s name as listed in processes.name. The MongoDB Agent expands the host field to create a valid replica set configuration.

See also

replSetGetConfig.

replicaSets[n].members[m]._id integer Optional Any positive integer that indicates the member of the replica set.
replicaSets[n].members[m].host string Optional Hostname, and port number when applicable, that serves this replica set member.
replicaSets[n].members[m].arbiterOnly boolean Optional Flag that indicates whether this replica set member acts as an arbiter.
replicaSets[n].members[m].buildIndexes boolean Optional Flag that indicates whether the mongod process builds indexes on this replica set member.
replicaSets[n].members[m].hidden boolean Optional Flag that indicates whether the replica set allows this member to accept read operations.
replicaSets[n].members[m].priority number Optional Relative eligibility for Ops Manager to select this replica set member as a primary. Larger number increase eligibility. This value can be between 0 and 1000, inclusive for data-bearing nodes. Arbiters can have values of 0 or 1.
replicaSets[n].members[m].tags object Optional List of user-defined labels and their values applied to this replica set member.
replicaSets[n].members[m].secondaryDelaySecs integer Optional Amount of time in seconds that this replica set memberr should lag behind the primary.
replicaSets[n].members[m].votes number Optional Quantity of votes this replica set member can cast for a replica set election. All data bearing nodes can have 0 or 1 votes. Arbiters always have 1 vote.
replicaSets[n].force object Optional

Instructions to the MongoDB Agent to force a replica set to use the Configuration Version specified in replicaSets.force.CurrentVersion.

With this object, the MongoDB Agent can force a replica set to accept a new configuration to recover from a state in which a minority of its members are available.

replicaSets[n].force.currentVersion integer Optional

Configuration Version that the MongoDB Agent forces the replica set to use. Set to -1 to force a replica set to accept a new configuration.

Warning

Forcing a replica set reconfiguration might lead to a rollback of majority-committed writes.

Proceed with caution. Contact MongoDB Support if you have questions about the potential impacts of this operation.

Sharded Clusters

The sharding array defines the configuration of each sharded cluster. This parameter is required for deployments with sharded clusters.

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"sharding" : [
  {
    "managedSharding" : <boolean>,
    "name" : "<string>",
    "configServerReplica" : "<string>",
    "collections" : [
      {
        "_id" : "<string>",
        "key" : [
          [ "shard key" ],
          [ "shard key" ],
          ...
        ],
        "unique" : <boolean>
      },
      ...
    ],
    "shards" : [
      {
        "_id" : "<string>",
        "rs" : "<string>",
        "tags" : [ "<string>", ... ]
      },
      ...
    ],
    "tags" : [
      {
        "ns" : "<string>",
        "min" : [
          {
            "parameter" : "<string>",
            "parameterType" : "<string>",
            "value" : "<string>"
          }
        ],
        "max" : [
          {
            "parameter" : "<string>",
            "parameterType" : "<string>",
            "value" : "<string>"
          }
        ],
        "tag" : "<string>"
      },
      ...
    ]
  },
  ...
]
Name Type Necessity Description
sharding array of objects Optional Objects that define the configuration of each sharded cluster. Each object in the array contains the specifications for one cluster. The MongoDB Agent regularly checks each cluster’s state against the specifications. If the specification and cluster don’t match, the agent will change the configuration of the cluster, which might cause the balancer to migrate chunks.
sharding.managedSharding boolean Conditional Flag that indicates whether Ops Manager Automation manages all sharded collections and tags in the deployment
sharding.name string Conditional Name of the cluster. This must correspond with the value in processes.cluster for a mongos.
sharding.configServerReplica string Conditional

Name of the config server replica set.

You can add this array parameter if your config server runs as a replica set.

If you run legacy mirrored config servers that don’t run as a replica set, use sharding.configServer.

sharding.configServer array of strings Conditional

Names of the config server hosts. The host names match the names used in each host’s processes.name parameter.

If your sharded cluster runs MongoDB 3.4 or later, use sharding.configServerReplica.

Important

MongoDB 3.4 removes support for mirrored config servers.

sharding.collections array of objects Conditional Objects that define the sharded collections and their shard keys.
sharding.collections._id string Conditional namespace of the sharded collection. The namespace is the combination of the database name and the name of the collection. For example, testdb.testcoll.
sharding.collections.key array of arrays Conditional

Collection’s shard keys. It contains:

  • One array if your cluster uses one shard key.
  • Multiple arrays if your cluster uses a compound shard key.
sharding.collections.unique boolean Conditional Flag that indicates whether MongoDB enforces uniqueness for the shard key.
sharding.shards array of objects Conditional Cluster’s shards.
sharding.shards._id string Conditional Name of the shard.
sharding.shards.rs string Conditional Name of the shard’s replica set. This is specified in the replicaSets._id parameter.
sharding.shards.tags array of strings Conditional

Zones assigned to this shard.

You can add this array parameter if you use zoned sharding.

sharding.tags array of objects Conditional Definition of zones for zoned sharding. Each object in this array defines a zone and configures the shard key range for that zone.
sharding.tags.ns string Conditional

Namespace of the collection that uses zoned sharding. The namespace combines the database name and the name of the collection.

Example

testdb.testcoll

sharding.tags.min array Conditional

Minimum value of the shard key range.

Specify the field name, field type, and value in a document of the following form.

{
  "field" : <string>,
  "fieldType" : <string>,
  "value" : <string>
}

fieldType must be one of the following:

  • string
  • integer
  • long
  • double
  • decimal
  • date
  • timestamp
  • oid
  • minKey
  • maxKey

value must be passed in as a string value.

To use a compound shard key, specify each field in a separate document, as shown in the example after this table. For more information on shard keys, see Shard Keys in the MongoDB manual.

sharding.tags.max array Conditional

Maximum value of the shard key range.

Specify the field name, field type, and value in a document of the following form.

{
  "field" : <string>,
  "fieldType" : <string>,
  "value" : <string>
}

fieldType must be one of the following:

  • string
  • integer
  • long
  • double
  • decimal
  • date
  • timestamp
  • oid
  • minKey
  • maxKey

value must be passed in as a string value.

To use a compound shard key, specify each field in a separate document, as shown in the example after this table. For more information on shard keys, see Shard Keys in the MongoDB manual.

sharding.tags.tag string Conditional Name of the zone associated with the shard key range specified by sharding.tags.min and sharding.tags.max.

Example

The sharding.tags Array with Compound Shard Key

The following example configuration defines a compound shard key range with a min value of { a : 1, b : ab } and a max value of { a : 100, b : fg }. The example defines the range on the testdb.test1 collection and assigns it to zone zone1.

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"tags" : [
  {
    "ns" : "testdb.test1",
    "min" : [
      {
        "parameter" : "a",
        "parameterType" : "integer",
        "value" : "1"
      },
      {
        "parameter" : "b",
        "parameterType" : "string",
        "value" : "ab"
      }
    ],
    "max" : [
      {
        "parameter" : "a",
        "parameterType" : "integer",
        "value" : "100"
      },
      {
        "parameter" : "b",
        "parameterType" : "string",
        "value" : "fg"
      }
    ],
    "tag" : "zone1"
  }
]

Cluster Balancer

The balancer object is optional and defines balancer settings for each cluster.

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"balancer": {
  "<clusterName1>": {},
  "<clusterName2>": {},
  ...
}
Name Type Necessity Description
balancer object Optional Parameters named according to clusters, each parameter containing an object with the desired balancer settings for the cluster. The object uses the stopped and activeWindow parameters, as described in the procedure to schedule the balancing window in this tutorial in the MongoDB manual.

Authentication

Ops Manager doesn’t require the auth object. This object defines authentication-related settings.

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{
  "auth": {
    "authoritativeSet": "<boolean>",
    "autoUser": "<string>",
    "autoPwd": "<string>",
    "disabled": "<boolean>",
    "deploymentAuthMechanisms": ["<string>", "<string>"],
    "autoAuthMechanisms": ["<string>"],
    "key": "<string>",
    "keyfile": "<string>",
    "newAutoPwd": "<string>",
    "newKey": "<string>",
    "usersDeleted": [{
      "user": "<string>",
      "dbs": ["<string>", "<string>"]
    }],
    "usersWanted": [{
      "authenticationRestrictions": [{
        "clientSource": ["(IP | CIDR range)", "(IP | CIDR range)"],
        "serverAddress": ["(IP | CIDR range)", "(IP | CIDR range)"]
      }],
      "db": "<string>",
      "initPwd": "<string>",
      "otherDBRoles": {
        "<string>": ["<string>", "<string>"]
      },
      "roles": ["<string>", "<string>"],
      "pwd": "<string>",
      "user": "<string>"
    }]
  }
}
Name Type Necessity Description
auth object Optional

Defines authentication-related settings.

Note

If you omit this parameter, skip the rest of this section.

auth.authoritativeSet boolean Conditional

Sets whether or not Ops Manager enforces a consistent set of managed MongoDB users and roles in all managed deployments in the project.

auth.authoritativeSet defaults to false.

Required if “auth” : true.

auth.autoUser string Conditional

Username that the Automation uses when connecting to an instance.

Required if “auth” : true.

auth.autoPwd string Conditional

Password that the Automation uses when connecting to an instance.

Required if “auth” : true.

auth.disabled boolean Optional Flag indicating if auth is disabled. If not specified, disabled defaults to false.
auth.deploymentAuthMechanisms array of strings Conditional

Lists the supported authentication mechanisms for the processes in the deployment.

Required if “auth” : true.

Specify:

Value Authentication Mechanism
MONGODB-CR SCRAM-SHA-1
SCRAM-SHA-256 SCRAM-SHA-256
MONGODB-X509 x.509 Client Certificate
PLAIN LDAP
GSSAPI Kerberos
auth.autoAuthMechanisms array of strings Conditional

Sets the authentication mechanism used by the Automation. If not specified, disabled defaults to false.

Required if “auth” : true.

Note

This parameter contains more than one element only when it’s configured for both SCRAM-SHA-1 and SCRAM-SHA-256.

Specify:

Value Authentication Mechanism
MONGODB-CR SCRAM-SHA-1
SCRAM-SHA-256 SCRAM-SHA-256
MONGODB-X509 x.509 Client Certificate
PLAIN LDAP
GSSAPI Kerberos
auth.key string Conditional

Contents of the key file that Ops Manager uses to authenticate to the MongoDB processes.

Required if “auth” : true and “auth.disabled” : false.

Note

If you change the auth.key value, you must change the auth.keyfile value.

auth.keyfile string Conditional

Path and name of the key file that Ops Manager uses to authenticate to the MongoDB processes.

Required if “auth” : true and “auth.disabled” : false.

Note

If you change the auth.keyfile value, you must change the auth.key value.

auth
.newAutoPwd
string Optional

New password that the Automation uses when connecting to an instance. To rotate passwords without losing the connection:

  1. Set auth.newAutoPwd and leave auth.autoPwd with its current password.
  2. Wait for the goal state.
  3. auth.newAutoPwd copies over the auth.autoPwd password automatically.

Note

You can set this option only when you include SCRAM-SHA-1 or SCRAM-SHA-256 as one of the authentication mechanisms for the Automation in auth.autoAuthMechanisms.

auth.newKey string Optional

Contents of a new key file that you want Ops Manager to use to authenticate to the MongoDB processes.

When you set this option, Ops Manager rotates the key that the application uses to authenticate to the MongoDB processes in your deployment. When all MongoDB Agents use the new key, Ops Manager replaces the value of auth.key with the new key that you provided in auth.newKey and removes auth.newKey from the automation configuration.

auth.usersDeleted array of objects Optional Objects that define the authenticated users to be deleted from specified databases or from all databases. This array must contain auth.usersDeleted.user and auth.usersDeleted.dbs.
auth.usersDeleted[n].user string Optional Username of user that Ops Manager should delete.
auth.usersDeleted[n].dbs array of strings Optional List the names of the databases from which Ops Manager should delete the authenticated user.
auth.usersWanted array of objects Optional Contains objects that define authenticated users to add to specified databases. Each object must have the auth.usersWanted[n].db, auth.usersWanted[n].user, and auth.usersWanted[n].roles parameters, and then have exactly one of the following parameters: auth.usersWanted[n].pwd, auth.usersWanted[n].initPwd, or auth.usersWanted[n].userSource.
auth.usersWanted[n].db string Conditional Database to which to add the user.
auth.usersWanted[n].user string Conditional Name of the user that Ops Manager should add.
auth.usersWanted[n].roles array Conditional List of the roles to be assigned to the user from the user’s database, which is specified in auth.usersWanted[n].db.
auth.usersWanted[n].pwd string Conditional

32-character hex SCRAM-SHA-1 hash of the password currently assigned to the user.

Ops Manager doesn’t use this parameter to set or change a password.

Required if:

  • “auth” : true,
  • “auth.deploymentAuthMechanisms” : “MONGODB-CR”, and
  • “auth.usersWanted[n].initPwd” is unset.
auth.usersWanted[n].initPwd string Conditional

Cleartext password that you want to assign to the user.

Required if:

  • “auth” : true,
  • “auth.deploymentAuthMechanisms” : “MONGODB-CR”, and
  • “auth.usersWanted[n].pwd” is unset.
auth.usersWanted[n].userSource string Deprecated No longer supported.
auth.usersWanted[n].otherDBRoles object Optional If you assign the user’s database “auth.usersWanted[n].db” : “admin”, then you can use this object to assign the user roles from other databases as well. The object contains key-value pairs where the key is the name of the database and the value is an array of string values that list the roles be assigned from that database.
auth.usersWanted[n].authenticationRestrictions array of documents Optional

Authentication restrictions that the host enforces on the user.

Warning

If a user inherits multiple roles with incompatible authentications restrictions, that user becomes unusable. For example, if a user inherits one role in which the clientSource field is [198.51.100.0] and another role in which the clientSource field is [203.0.113.0], the server is unable to authenticate the user.

For more information about authentication in MongoDB, see Authentication.

auth.usersWanted[n].authenticationRestrictions[k].clientSource array of strings Conditional If present when authenticating a user, the host verifies that the given list contains the client’s IP address CIDR range. If the client’s IP address is not present, the host does not authenticate the user.
auth.usersWanted[n].authenticationRestrictions[k].serverAddress array of strings Conditional Comma-separated array of IP addresses to which the client can connect. If present, the host verifies that Ops Manager accepted the client’s connection from an IP address in the given array. If the connection was accepted from an unrecognized IP address, the host doesn’t authenticate the user.

LDAP

The ldap object enables LDAP authorization. This object is optional. To learn more, see Enable LDAP Authentication for your Ops Manager Project.

 "ldap": {
   "servers": "<host>:<port>, <host>:<port>",
   "timeoutMS": "<time>",
   "bindMethod": "<sasl/simple>",
   "bindSaslMechanisms": "<sasl-mechanism>, <sasl-mechanism>",
   "bindQueryUser": <ldap-dn>",
   "bindQueryPassword": "<password>",
   "userCacheInvalidationPeriod": "<interval>",
   "authzQueryTemplate": "<rfc-4516-url>",
   "userToDNMapping": [
             {
                     "match": "<ECMAScript-regex>",
                     "<substition/ldapQuery>": "<DN-string/RFC4516-encoded-LDAP-query>"
             }
   ]
}
Name Type Necessity Description
ldap object Optional Object that contains the settings to enable and configure LDAP authorization.
ldap.servers string Conditional Comma-separated string that contains one or more LDAP servers in <host>:<port> format to execute queries against. You can use setParameter to configure this setting on a running system. For LDAP authorization, you must specify this setting.
ldap.timeoutMS long Optional Amount of time in milliseconds that MongoDB waits for an LDAP server to respond to a request before timing out. You can use setParameter to configure this setting on a running system. By default, MongoDB times out after ten seconds.
ldap.bindMethod string Optional Human-readable string that indicates whether to use simple authentication or an SASL protocol to authenticate itself. You can specify simple or sasl. By default, MongoDB uses simple authentication.
ldap.bindSaslMechanisms string Optional String that contains a comma-separated list of SASL mechanisms for MongoDB to attempt authentication against the LDAP server while binding. By default, MongoDB uses DIGEST-MD5 to bind.
ldap.bindQueryUser string Conditional LDAP entity domain name that MongoDB binds as when it connects to an LDAP server. You can use setParameter to configure this setting on a running system. For MongoDB to bind with authentication credentials, you must specify this setting.
ldap.bindQueryPassword string Conditional Password that MongoDB binds with when it connects to an LDAP server. You can use setParameter to configure this setting on a running system. For MongoDB to bind with a password, you must specify this setting.
ldap.userCacheInvalidationPeriod integer Optional Interval that MongoDB waits between user cache flushes. When the external user cache is flushed, the next operation that an LDAP authorized user makes requires a reaquisition of roles. If you specify a high value, you might decrease the load on your LDAP servers and increase the amount of time needed to synchronize MongoDB roles with LDAP group membership. By default, MongoDB waits 30 seconds between cache flushes.
ldap.authzQueryTemplate string Conditional RFC 4516 formatted URL of the LDAP query to execute to obtain LDAP groups relative to the ldap.server setting. In this URL, the placeholder token string {USER} is replaced with the acquired user domain name. You can use setParameter to configure this setting on a running system. For LDAP authorization, you must specify this setting.
ldap.userToDNMapping array Optional JSON-formatted array that contains the ordered transformations that MongoDB applies to authenticate MongoDB user names to match their domain names. You can specify this setting if you use an alternate authentication method, or if the user name passed to MongoDB for authentication doesn’t match the LDAP domain name. You can use setParameter to configure this setting on a running system. By default, MongoDB uses user names as the domain names for automatic LDAP authorization.

SSL

The ssl object enables TLS for encrypting connections. This object is optional.

"ssl" : {
  "CAFilePath" : "<string>"
}
Name Type Necessity Description
ssl object Optional

Enables TLS for encrypting connections. To use TLS, choose a package that supports TLS.

All platforms that support MongoDB Enterprise also support TLS.

ssl.clientCertificateMode string Conditional Indicates whether connections to Ops Manager require a TLS certificate. The values are OPTIONAL and REQUIRE.
ssl.CAFilePath string Conditional

Absolute file path to the certificate used to authenticate through TLS on a Linux or UNIX (including macOS) host.

Ops Manager requires either ssl.CAFilePath or ssa.CAFilePathWindows if:

  • You’re using TLS or X.509 authentication, and
  • The CA file is not in your operating system’s root certificates.
ssl.CAFilePathWindows string Conditional

Absolute file path to the certificate used to authenticate through TLS on a Windows host.

Ops Manager requires either ssl.CAFilePath or ssa.CAFilePathWindows if:

  • You’re using TLS or X.509 authentication, and
  • The CA file is not in your operating system’s root certificates.
ssl.autoPEMKeyFilePath string Conditional

Absolute file path to the client private key (PEM) file that authenticates the TLS connection on a Linux or UNIX (including macOS) host.

Ops Manager requires either ssl.autoPEMKeyFilePath or ssa.autoPEMKeyFilePathWindows if you’re using TLS or X.509 authentication.

ssl.autoPEMKeyFilePathWindows string Conditional

Absolute file path to the client private key (PEM) file that authenticates the TLS connection on a Windows host.

Ops Manager requires either ssl.autoPEMKeyFilePath or ssa.autoPEMKeyFilePathWindows if you’re using TLS or X.509 authentication.

ssl.autoPEMKeyFilePwd string Conditional Password for the private key (PEM) file specified in ssl.autoPEMKeyFilePath or ssa.autoPEMKeyFilePathWindows. Ops Manager requires this password if the PEM file is encrypted.

MongoDB Roles

The roles array is optional and describes user-defined roles.

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"roles" : [
  {
    "role" : "<string>",
    "db" : "<string>",
    "privileges" : [
      {
        "resource" : { ... },
        "actions" : [ "<string>", ... ]
      },
      ...
    ],
    "roles" : [
      {
        "role" : "<string>",
        "db" : "<string>"
      }
    ]
    "authenticationRestrictions" : [
     {
      "clientSource": [("<IP>" | "<CIDR range>"), ...],
      "serverAddress": [("<IP>" | "<CIDR range>"), ...]
    }, ...
  ]
  },
  ...
]
Name Type Necessity Description
roles array of objects Optional Roles and privileges that MongoDB has assigned to a cluster’s user-defined roles. Each object describes a different user-defined role. Objects in this array contain the same fields as documents in the system roles collection, except for the _id field.
roles[n].role string Conditional Name of the user-defined role.
roles[n].db string Conditional Database to which the user-defined role belongs.
roles[n].privileges array of documents Conditional Privileges this role can perform.
roles[n].privileges[k].resource string Conditional Specifies the resources upon which the privilege actions apply.
roles[n].privileges[k].actions string Conditional

Actions permitted on the resource.

roles[n].roles array of documents Conditional Roles from which this role inherits privileges.
roles[n].authenticationRestrictions array of documents Optional

Authentication restrictions that the MongoDB server enforces on this role.

Warning

If a user inherits multiple roles with incompatible authentications restrictions, that user becomes unusable. For example, if a user inherits one role in which the clientSource field is [198.51.100.0] and another role in which the clientSource field is [203.0.113.0], the server is unable to authenticate the user.

For more information about authentication in MongoDB, see Authentication.

roles[n].authenticationRestrictions[k].clientSource array of strings Conditional If present, when authenticating a user, the MongoDB server verifies that the client’s IP address is either in the given list or belongs to a CIDR range in the list. If the client’s IP address is not present, the MongoDB server does not authenticate the user.
roles[n].authenticationRestrictions[k].serverAddress array of strings Conditional Comma-separated array of IP addresses to which the client can connect. If present, the MongoDB server verifies that it accepted the client’s connection from an IP address in the given array. If the MongoDB server accepts a connection from an unrecognized IP address, the MongoDB server does not authenticate the user.

Kerberos

The kerberos object is optional and defines a kerberos service name used in authentication.

"kerberos": {
  "serviceName": "<string>"
}
Name Type Necessity Description
kerberos object Optional Key-value pair that defines the kerberos service name agents use to authenticate via kerberos.
kerberos.serviceName string Required

Label that sets:

Indexes

The indexConfigs array is optional and defines indexes to be built for specific replica sets.

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"indexConfigs": [{
  "key": [
    ["<string>", "<value>"]
  ],
  "rsName": "<string>",
  "dbName": "<string>",
  "collectionName": "<string>",
  "collation": {
    "locale": "<string>",
    "caseLevel": <boolean>,
    "caseFirst": "<string>",
    "strength": <number>,
    "numericOrdering": <boolean>,
    "alternate": "<string>",
    "maxVariable": "<string>",
    "normalization": <boolean>,
    "backwards": <boolean>
  },
  "options": {
    "<key>": "<value>"
  }
}]
Name Type Necessity Description
indexConfigs array of objects Optional Specific indexes to be built for specific replica sets.
indexConfigs.key array of arrays Required Keys in the index. This “array of arrays” contains a single array if the index has just one key.
indexConfigs.rsName string Required Replica set on which MongoDB builds the index.
indexConfigs.dbName string Required Database that MongoDB indexes.
indexConfigs.collectionName string Required Collection that MongoDB indexes.
indexConfigs.collation object Optional

Language-specific rules to use when sorting and matching strings if the index uses collation.

If you include the indexConfigs.collation object, you must include the indexConfigs.collation.locale parameter. All other parameters are optional.

If you don’t include the indexConfigs.collation object, the index can’t include collation.

indexConfigs.collation.locale string Required

Locale that the ICU defines.

The MongoDB Server Manual lists the supported locales in its Collation Locales and Default Parameters section.

To specify simple binary comparison, set this value to simple.

indexConfigs.collation.caseLevel boolean Optional

Flag that indicates how the index uses case comparison.

If you set this parameter to true, the index uses case comparison.

This parameter applies only if you set indexConfigs.collation.strength to 1 or 2.

See also

Collation

indexConfigs.collation.caseFirst string Optional

Sort order of case differences during tertiary level comparisons.

The MongoDB Server Manual lists the possible values in its Collation section.

indexConfigs.collation.strength number Optional

Level of comparison to perform. Corresponds to ICU Comparison Levels.

The MongoDB Server Manual lists the possible values in its Collation section.

indexConfigs.collation.numericOrdering boolean Optional

Flag that indicates how to compare numeric strings.

Value Collation Method Example
true numeric strings compared as numbers 10 > 2.
false numeric strings compared as strings 10 < 2.

The default is false.

See also

Collation

indexConfigs.collation.alternate string Optional

Setting that determines how collation should consider whitespace and punctuation as base characters during comparisons.

The MongoDB Server Manual lists the possible values in its Collation section.

indexConfigs.collation.maxVariable string Optional

Characters the index can ignore. This parameter applies only if indexConfigs.collation.alternate is set to shifted.

The MongoDB Server Manual lists the possible values in its Collation section.

indexConfigs.collation.normalization boolean Optional

Flag that indicates if the text should be normalized.

If you set this parameter to true, collation:

  • Checks if text requires normalization.
  • Performs normalization to compare text.

The default is false.

See also

Collation

indexConfigs.collation.backwards boolean Optional

Flag that indicates how the index should handle diacritic strings.

If you set this parameter to true, strings with diacritics sort from the back to the front of the string.

The default is false.

See also

Collation

indexConfigs.options document Required Index options that the MongoDB Go Driver supports.