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README.md

mongodb puppet module

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Table of Contents

  1. Overview
  2. Module Description - What does the module do?
  3. Setup - The basics of getting started with mongodb
  4. Usage - Configuration options and additional functionality
  5. Reference - An under-the-hood peek at what the module is doing and how
  6. Limitations - OS compatibility, etc.
  7. Development - Guide for contributing to the module

Overview

Installs MongoDB on RHEL/Ubuntu/Debian from OS repo, or alternatively from 10gen repository installation documentation.

Module Description

The MongoDB module manages mongod server installation and configuration of the mongod daemon. For the time being it supports only a single MongoDB server instance, without sharding functionality.

Setup

What MongoDB affects

  • MongoDB package.
  • MongoDB configuration files.
  • MongoDB service.
  • MongoDB client.
  • MongoDB sharding support (mongos)
  • 10gen/mongodb apt/yum repository.

Beginning with MongoDB

If you just want a server installation with the default options you can run include mongodb::server. If you need to customize configuration options you need to do the following:

class {'mongodb::server':
  port    => 27018,
  verbose => true,
}

For Red Hat family systems, the client can be installed in a similar fashion:

class {'mongodb::client':}

Note that for Debian/Ubuntu family systems the client is installed with the server. Using the client class will by default install the server.

If one plans to configure sharding for a Mongo deployment, the module offer the mongos installation. mongos can be installed the following way :

class {'mongodb::mongos' :
  configdb => ['configsvr1.example.com:27018'],
}

Although most distros come with a prepacked MongoDB server we recommend to use the 10gen/MongoDB software repository, because most of the current OS packages are outdated and not appropriate for a production environment. To install MongoDB from 10gen repository:

class {'mongodb::globals':
  manage_package_repo => true,
}
-> class {'mongodb::client': }
-> class {'mongodb::server': }

If you don't want to use the 10gen/MongoDB software repository or the OS packages, you can point the module to a custom one. To install MongoDB from a custom repository:

class {'mongodb::globals':
  manage_package_repo => true,
  repo_location => 'http://example.com/repo'
}
-> class {'mongodb::server': }
-> class {'mongodb::client': }

Having a local copy of MongoDB repository (that is managed by your private modules) you can still enjoy the charms of mongodb::params that manage packages. To disable managing of repository, but still enable managing packages:

class {'mongodb::globals':
  manage_package_repo => false,
  manage_package      => true,
}
-> class {'mongodb::server': }
-> class {'mongodb::client': }

Usage

Most of the interaction for the server is done via mongodb::server. For more options please have a look at mongodb::server. Also in this version we introduced mongodb::globals, which is meant more for future implementation, where you can configure the main settings for this module in a global way, to be used by other classes and defined resources. On its own it does nothing.

Create MongoDB database

To install MongoDB server, create database "testdb" and user "user1" with password "pass1".

class {'mongodb::server':
  auth => true,
}

mongodb::db { 'testdb':
  user          => 'user1',
  password_hash => 'a15fbfca5e3a758be80ceaf42458bcd8',
}

Parameter 'password_hash' is hex encoded md5 hash of "user1:mongo:pass1". Unsafe plain text password could be used with 'password' parameter instead of 'password_hash'.

Reference

Classes

Public classes

  • mongodb::server: Installs and configure MongoDB
  • mongodb::client: Installs the MongoDB client shell (for Red Hat family systems)
  • mongodb::globals: Configure main settings in a global way
  • mongodb::mongos: Installs and configure Mongos server (for sharding support)

Private classes

  • mongodb::repo: Manage 10gen/MongoDB software repository
  • mongodb::repo::apt: Manage Debian/Ubuntu apt 10gen/MongoDB repository
  • mongodb::repo::yum: Manage Redhat/CentOS apt 10gen/MongoDB repository
  • mongodb::server::config: Configures MongoDB configuration files
  • mongodb::server::install: Install MongoDB software packages
  • mongodb::server::service: Manages service
  • mongodb::client::install: Installs the MongoDB client software package
  • mongodb::mongos::config: Configures Mongos configuration files
  • mongodb::mongos::install: Install Mongos software packages
  • mongodb::mongos::service: Manages Mongos service

Class: mongodb::globals

Note: most server specific defaults should be overridden in the mongodb::server class. This class should only be used if you are using a non-standard OS or if you are changing elements such as version or manage_package_repo that can only be changed here.

This class allows you to configure the main settings for this module in a global way, to be used by the other classes and defined resources. On its own it does nothing.

server_package_name

This setting can be used to override the default MongoDB server package name. If not specified, the module will use whatever package name is the default for your OS distro.

service_name

This setting can be used to override the default MongoDB service name. If not specified, the module will use whatever service name is the default for your OS distro.

service_provider

This setting can be used to override the default MongoDB service provider. If not specified, the module will use whatever service provider is the default for your OS distro.

service_status

This setting can be used to override the default status check command for your MongoDB service. If not specified, the module will use whatever service name is the default for your OS distro.

mongod_service_manage

This setting can be used to override the default management of the mongod service. By default the module will manage the mongod process.

mongos_service_manage

This setting can be used to override the default management of the mongos service. By default the module will manage the mongos process.

user

This setting can be used to override the default MongoDB user and owner of the service and related files in the file system. If not specified, the module will use the default for your OS distro.

group

This setting can be used to override the default MongoDB user group to be used for related files in the file system. If not specified, the module will use the default for your OS distro.

ipv6

This setting is used to configure MongoDB to turn on ipv6 support. If not specified and ipv6 address is passed to MongoDB bind_ip it will just fail.

bind_ip

This setting can be used to configure MonogDB process to bind to and listen for connections from applications on this address. If not specified, the module will use the default for your OS distro. Note: This value should be passed as an array.

use_enterprise_repo

When manage_package_repo is set to true, this setting indicates if it will use the Community Edition (false, the default) or the Enterprise one (true).

version

The version of MonogDB to install/manage. This is a simple way of providing a specific version such as '2.2' or '2.4' for example. If not specified, the module will use the default for your OS distro.

repo_location

This setting can be used to override the default MongoDB repository location. If not specified, the module will use the default repository for your OS distro.

repo_proxy

This will allow you to set a proxy for your repository in case you are behind a corporate firewall. Currently this is only supported with yum repositories

proxy_username

This sets the username for the proxyserver, should authentication be required

proxy_password

This sets the password for the proxyserver, should authentication be required

Class: mongodb::server

Most of the parameters manipulate the mongod.conf file.

For more details about configuration parameters consult the MongoDB Configuration File Options.

ensure

Used to ensure that the package is installed and the service is running, or that the package is absent/purged and the service is stopped. Valid values are true/false/present/absent/purged.

config

Path of the config file. If not specified, the module will use the default for your OS distro.

dbpath

Set this value to designate a directory for the mongod instance to store it's data. If not specified, the module will use the default for your OS distro.

dbpath_fix

Set this value to true if you want puppet to recursively manage the permissions of the files in the dbpath directory. If you are using the default dbpath, this should probably be false. Set this to true if you are using a custom dbpath. The default is false.

pidfilepath

Specify a file location to hold the PID or process ID of the mongod process. If not specified, the module will use the default for your OS distro.

manage_pidfile

Should puppet create the pidfile. Mondod 6.2.10 will not start if pidfile exists

logpath

Specify the path to a file name for the log file that will hold all diagnostic logging information. Unless specified, mongod will output all log information to the standard output.

ipv6

This setting has to be true to configure MongoDB to turn on ipv6 support. If not specified and ipv6 address is passed to MongoDB bind_ip it will just fail.

bind_ip

Set this option to configure the mongod or mongos process to bind to and listen for connections from applications on this address. If not specified, the module will use the default for your OS distro. Example: bind_ip=['127.0.0.1', '192.168.0.3'] Note: bind_ip accepts an array as a value.

logappend

Set to true to add new entries to the end of the logfile rather than overwriting the content of the log when the process restarts. Default: True

system_logrotate

Set to reopen for mongo to close a log file then reopen it so that logrotations handled outside of mongo perform as expected. Default: undef

fork

Set to true to fork server process at launch time. The default setting depends on the operating system.

port

Specifies a TCP port for the server instance to listen for client connections. Default: 27017

journal

Set to true to enable operation journaling to ensure write durability and data consistency. Default: on 64-bit systems true and on 32-bit systems false

nojournal

Set nojournal = true to disable durability journaling. By default, mongod enables journaling in 64-bit versions after v2.0. Default: on 64-bit systems false and on 32-bit systems true

Note: You must use journal to enable journaling on 32-bit systems.

smallfiles

Set to true to modify MongoDB to use a smaller default data file size. Specifically, smallfiles reduces the initial size for data files and limits them to 512 megabytes. Default: false

cpu

Set to true to force mongod to report every four seconds CPU utilization and the amount of time that the processor waits for I/O operations to complete (i.e. I/O wait.) Default: false

auth

Set to true to enable database authentication for users connecting from remote hosts. If no users exist, the localhost interface will continue to have access to the database until you create the first user. Default: false

noauth

Disable authentication. Currently the default. Exists for future compatibility and clarity.

verbose

Increases the amount of internal reporting returned on standard output or in the log file generated by logpath. Default: false

verbositylevel

MongoDB has the following levels of verbosity: v, vv, vvv, vvvv and vvvvv. Default: None

objcheck

Forces the mongod to validate all requests from clients upon receipt to ensure that clients never insert invalid documents into the database. Default: on v2.4 default to true and on earlier version to false

quota

Set to true to enable a maximum limit for the number of data files each database can have. The default quota is 8 data files, when quota is true. Default: false

quotafiles

Modify limit on the number of data files per database. This option requires the quota setting. Default: 8

diaglog

Creates a very verbose diagnostic log for troubleshooting and recording various errors. Valid values: 0, 1, 2, 3 and 7. For more information please refer to MongoDB Configuration File Options.

directoryperdb

Set to true to modify the storage pattern of the data directory to store each database’s files in a distinct folder. Default: false

profile

Modify this value to changes the level of database profiling, which inserts information about operation performance into output of mongod or the log file if specified by logpath.

maxconns

Specifies a value to set the maximum number of simultaneous connections that MongoDB will accept. Default: depends on system (i.e. ulimit and file descriptor) limits. Unless set, MongoDB will not limit its own connections.

oplog_size

Specifies a maximum size in megabytes for the replication operation log (e.g. oplog.) mongod creates an oplog based on the maximum amount of space available. For 64-bit systems, the oplog is typically 5% of available disk space.

nohints

Ignore query hints. Default: None

nohttpinterface

Set to true to disable the HTTP interface. This command will override the rest and disable the HTTP interface if you specify both. Default: false

noscripting

Set noscripting = true to disable the scripting engine. Default: false

notablescan

Set notablescan = true to forbid operations that require a table scan. Default: false

noprealloc

Set noprealloc = true to disable the preallocation of data files. This will shorten the start up time in some cases, but can cause significant performance penalties during normal operations. Default: false

nssize

Use this setting to control the default size for all newly created namespace files (i.e .ns). Default: 16

mms_token

MMS token for mms monitoring. Default: None

mms_name

MMS identifier for mms monitoring. Default: None

mms_interval

MMS interval for mms monitoring. Default: None

configsvr

Use this setting to enable config server mode for mongod.

shardsvr

Use this setting to enable shard server mode for mongod.

replset

Use this setting to configure replication with replica sets. Specify a replica set name as an argument to this set. All hosts must have the same set name.

replset_members

An array of member hosts for the replica set. Mutually exclusive with replset_config param.

replset_config

A hash that is used to configure the replica set. Mutually exclusive with replset_members param.

class mongodb::server {
  replset        => 'rsmain',
  replset_config => { 'rsmain' => { ensure  => present, members => ['host1:27017', 'host2:27017', 'host3:27017']  }  }

}
config_data

A hash to allow for additional configuration options to be set in user-provided template.

rest

Set to true to enable a simple REST interface. Default: false

quiet

Runs the mongod or mongos instance in a quiet mode that attempts to limit the amount of output. This option suppresses : "output from database commands, including drop, dropIndexes, diagLogging, validate, and clean", "replication activity", "connection accepted events" and "connection closed events". Default: false

For production systems this option is not recommended as it may make tracking problems during particular connections much more difficult.

slowms

Sets the threshold for mongod to consider a query “slow” for the database profiler. Default: 100 ms

keyfile

Specify the path to a key file to store authentication information. This option is only useful for the connection between replica set members. Default: None

key

Specify the key contained within the keyfile. This option is only useful for the connection between replica set members. Default: None

master

Set to true to configure the current instance to act as master instance in a replication configuration. Default: False Note: deprecated – use replica sets

set_parameter

Specify extra configuration file parameters (i.e. textSearchEnabled=true). Default: None

syslog

Sends all logging output to the host’s syslog system rather than to standard output or a log file. Default: None Important: You cannot use syslog with logpath.

slave

Set to true to configure the current instance to act as slave instance in a replication configuration. Default: false Note: deprecated – use replica sets

only

Used with the slave option, only specifies only a single database to replicate. Default: <> Note: deprecated – use replica sets

source

Used with the slave setting to specify the master instance from which this slave instance will replicate. Default: <> Note: deprecated – use replica sets

ssl

Set to true to enable ssl. Default: <> Important: You need to have ssl_key set as well, and the file needs to pre-exist on node. If you wish to use certificate validation, ssl_ca must also be set.

ssl_key

Default: <>

ssl_ca

Default: <>

ssl_weak_cert

Set to true to disable mandatory SSL client authentication Default: False

ssl_invalid_hostnames

Set to true to disable fqdn SSL cert check Default: False

ssl_mode

Ssl authorization mode. Valid options are: requireSSL, preferSSL, allowSSL. Default: requireSSL

service_manage

Whether or not the MongoDB service resource should be part of the catalog. Default: true

storage_engine

Only needed for MongoDB 3.x versions, where it's possible to select the 'wiredTiger' engine in addition to the default 'mmapv1' engine. If not set, the config is left out and mongo will default to 'mmapv1'. You should not set this for MongoDB versions < 3.x

restart

Specifies whether the service should be restarted on config changes. Default: 'true'

create_admin

Allows to create admin user for admin database. Redefine these parameters if needed:

admin_username

Administrator user name

admin_password

Administrator user password

admin_roles

Administrator user roles

store_creds

Store admin credentials in mongorc.js file. Uses with create_admin parameter

handle_creds

Set this to false to avoid having puppet handle .mongorc.js in case you wish to deliver it by other means. This is needed for facts to work if you have auth set to true. Default is true.

Class: mongodb::mongos

class. This class should only be used if you want to implement sharding within your mongodb deployment.

This class allows you to configure the mongos daemon (responsible for routing) on your platform.

ensure

Used to ensure that the package is installed and the service is running, or that the package is absent/purged and the service is stopped. Valid values are true/false/present/absent/purged.

config

Path of the config file. If not specified, the module will use the default for your OS distro.

config_content

Config content if the default doesn't match one needs.

config_template

Path to the config template if the default doesn't match one needs.

config_data

Hash containing key-value pairs to allow for additional configuration options to be set in user-provided template.

configdb

Array of the config servers IP addresses the mongos should connect to.

service_manage

Whether or not the MongoDB sharding service resource should be part of the catalog. Default: true

service_name

This setting can be used to override the default Mongos service name. If not specified, the module will use whatever service name is the default for your OS distro.

service_provider

This setting can be used to override the default Mongos service provider. If not specified, the module will use whatever service provider is the default for your OS distro.

service_status

This setting can be used to override the default status check command for your Mongos service. If not specified, the module will use whatever service name is the default for your OS distro.

service_enable

This setting can be used to specify if the service should be enable at boot

service_ensure

This setting can be used to specify if the service should be running

package_ensure

This setting can be used to specify if puppet should install the package or not

package_name

This setting can be used to specify the name of the package that should be installed. If not specified, the module will use whatever service name is the default for your OS distro.

restart

Specifies whether the service should be restarted on config changes. Default: 'true'

Definitions

Definition: mongodb:db

Creates database with user. Resource title used as database name.

user

Name of the user for database

password_hash

Hex encoded md5 hash of "$username:mongo:$password". For more information please refer to MongoDB Authentication Process.

password

Plain-text user password (will be hashed)

roles

Array with user roles. Default: ['dbAdmin']

Providers

Provider: mongodb_database

'mongodb_database' can be used to create and manage databases within MongoDB.

mongodb_database { testdb:
  ensure   => present,
  tries    => 10,
  require  => Class['mongodb::server'],
}
tries

The maximum amount of two second tries to wait MongoDB startup. Default: 10

Provider: mongodb_user

'mongodb_user' can be used to create and manage users within MongoDB database.

Note: if replica set is enabled, replica initialization has to come before any user operations.

mongodb_user { testuser:
  name          => 'testuser',
  ensure        => present,
  password_hash => mongodb_password('testuser', 'p@ssw0rd'),
  database      => testdb,
  roles         => ['readWrite', 'dbAdmin'],
  tries         => 10,
  require       => Class['mongodb::server'],
}
username

Name of the mongodb user.

password_hash

Hex encoded md5 hash of "$username:mongo:$password". Only available on MongoDB 3.0 and later.

password

Plaintext password of the user.

database

Name of database. It will be created, if not exists.

roles

Array with user roles. Default: ['dbAdmin']

tries

The maximum amount of two second tries to wait MongoDB startup. Default: 10

Provider: mongodb_replset

'mongodb_replset' can be used to create and manage MongoDB replicasets.

mongodb_replset { rsmain:
  ensure  => present,
  members => ['host1:27017', 'host2:27017', 'host3:27017']
}

Ideally the mongodb_replset resource will be declared on the initial desired primary node (arbitrarily the first of the list) and this node will be processed once the secondary nodes are up. This will ensure all the nodes are in the first configuration of the replicaset, else it will require running puppet again to add them.

members

Array of 'host:port' of the replicaset members.

It currently only adds members without options.

Provider: mongodb_shard

'mongodb_shard' can be used to create and manage MongoDB shards. Note: Removing a shard is not yet supported. Shard can only be added.

mongodb_shard { 'rsmain':
  member => 'rsmain/host1:27017',
  keys   => [{'rsmain.foo' => {'name' => 1}}],
}
member

Member of the shard in the form;

keys

Sharding keys for a specific database. This variable should be an array of sharding keys.

Limitations

This module has been tested on:

  • Debian 7.* (Wheezy)
  • Debian 6.* (squeeze)
  • Ubuntu 12.04.2 (precise)
  • Ubuntu 10.04.4 LTS (lucid)
  • RHEL 5/6/7
  • CentOS 5/6/7

For a full list of tested operating systems please have a look at the .nodeset.xml definition.

This module should support service_ensure separate from the ensure value on Class[mongodb::server] but it does not yet.

Apt module support

While this module supports both 1.x and 2.x versions of the puppetlabs-apt module, it does not support puppetlabs-apt 2.0.0 or 2.0.1.

Development

This module is maintained by Vox Pupuli. Voxpupuli welcomes new contributions to this module, especially those that include documentation and rspec tests. We are happy to provide guidance if necessary.

Please see CONTRIBUTING for more details.

Authors

  • Puppetlabs Module Team
  • Voxpupuli Team

We would like to thank everyone who has contributed issues and pull requests to this module. A complete list of contributors can be found on the GitHub Contributor Graph for the puppet-mongodb module.