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mongodb puppet module
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Version information

  • 0.7.0 (latest)
released May 26th 2014

Start using this module

  • r10k or Code Manager
  • Bolt
  • Manual installation
  • Direct download

Add this module to your Puppetfile:

mod 'rpignolet-mongodb', '0.7.0'
Learn more about managing modules with a Puppetfile

Add this module to your Bolt project:

bolt module add rpignolet-mongodb
Learn more about using this module with an existing project

Manually install this module globally with Puppet module tool:

puppet module install rpignolet-mongodb --version 0.7.0

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Tags: mongodb

Documentation

rpignolet/mongodb — version 0.7.0 May 26th 2014

mongodb puppet module

Build Status

####Table of Contents

  1. [Overview] (#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.] (#limitations)
  7. [Development - Guide for contributing to the module] (#development)

Overview

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

Deprecation Warning

This release is a major refactoring of the module which means that the API may have changed in backwards incompatible ways. If your project depends on the old API, please pin your dependencies to 0.3 version to ensure your environments don't break.

The current module design is undergoing review for potential 1.0 release. We welcome any feedback with regard to the APIs and patterns used in this release.

##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.

For the 0.5 release, the MongoDB module now supports database and user types.

For the 0.6 release, the MongoDB module now supports basic replicaset features (initiating a replicaset and adding members, but without specific options).

Setup

###What MongoDB affects

  • MongoDB package.
  • MongoDB configuration files.
  • MongoDB service.
  • MongoDB client.
  • 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:

puppet 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.

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::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

####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

####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.

#####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.

#####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.

#####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.

####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 enable or disable the service

#####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.

#####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.

#####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.

#####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

#####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

#####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.

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

#####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

#####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

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.

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

#####password_hash Hex encoded md5 hash of "$username:mongo:$password".

#####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.

Limitation

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
  • CentOS 5/6

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

Development

Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. We can’t access the huge number of platforms and myriad of hardware, software, and deployment configurations that Puppet is intended to serve.

We want to keep it as easy as possible to contribute changes so that our modules work in your environment. There are a few guidelines that we need contributors to follow so that we can have a chance of keeping on top of things.

You can read the complete module contribution guide on the Puppet Labs wiki.

Testing

There are two types of tests distributed with this module. Unit tests with rspec-puppet and system tests using rspec-system.

unit tests should be run under Bundler with the gem versions as specified in the Gemfile. To install the necessary gems:

bundle install --path=vendor

Test setup and teardown is handled with rake tasks, so the supported way of running tests is with

bundle exec rake spec

For system test you will also need to install vagrant > 1.3.x and virtualbox > 4.2.10. To run the system tests

bundle exec rake spec:system

To run the tests on different operating systems, see the sets available in .nodeset.xml and run the specific set with the following syntax:

RSPEC_SET=ubuntu-server-12042-x64 bundle exec rake spec:system

Authors

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 puppetlabs-mongodb module.