ansible-role-mongodb/README.md

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Ansible role for MongoDB [![Build Status](https://travis-ci.org/UnderGreen/ansible-role-mongodb.svg?branch=master)](https://travis-ci.org/UnderGreen/ansible-role-mongodb)
============
Ansible role which manages [MongoDB](http://www.mongodb.org/).
* Install and configure the MongoDB;
* Configure mongodb users
* Configure replication
* Provide handlers for restart and reload;
* Setup MMS authomation agent;
MongoDB support matrix:
| Distribution | < MongoDB 3.0 | MongoDB 3.2 | MongoDB 3.4 | MongoDB 3.6 |
| ------------ |:-------------:|:-----------:|:-----------:|:-----------:|
| Ubuntu 14.04 | :no_entry: | :white_check_mark:| :white_check_mark:| :white_check_mark:|
| Ubuntu 16.04 | :no_entry: | :white_check_mark:| :white_check_mark:| :white_check_mark:|
| Ubuntu 18.04 | :no_entry: | :x:| :x:| :white_check_mark:|
| Debian 8.x | :no_entry: | :white_check_mark:| :white_check_mark:| :white_check_mark:|
| Debian 9.x | :no_entry: | :white_check_mark:| :x:| :white_check_mark:|
| RHEL 6.x | :no_entry: | :white_check_mark: | :white_check_mark: | :white_check_mark:|
| RHEL 7.x | :no_entry: | :white_check_mark: | :white_check_mark: | :white_check_mark:|
- :white_check_mark: - fully tested, should works fine
- :interrobang: - maybe works, not tested
- :x: - don't have official support
- :no_entry: - MongoDB has reached EOL
#### Variables
```yaml
# You can use this variable to control installation source of MongoDB
# 'mongodb' will be installed from Debian/Ubuntu repos
# 'mongodb-org' will be installed from MongoDB official repos
mongodb_package: mongodb-org
# You can control installed version via this param.
# Should be '3.2', '3.4', '3.6'. This role doesn't support MongoDB < 3.2.
# I will recommend you to use latest version of MongoDB.
mongodb_version: "3.6"
mongodb_pymongo_from_pip: true # Install latest PyMongo via PIP or package manager
mongodb_pymongo_pip_version: 3.6.1 # Choose PyMong version to install from pip. If not set use latest
mongodb_user_update_password: "on_create" # MongoDB user password update default policy
mongodb_manage_service: true
# Disable transparent hugepages on systemd debian based installations
mongodb_disable_transparent_hugepages: false
mongodb_user: "{{ 'mongod' if ('RedHat' == ansible_os_family) else 'mongodb' }}"
mongodb_uid:
mongodb_gid:
mongodb_daemon_name: "{{ 'mongod' if ('mongodb-org' in mongodb_package) else 'mongodb' }}"
## net Options
mongodb_net_bindip: 127.0.0.1 # Comma separated list of ip addresses to listen on
mongodb_net_http_enabled: false # Enable http interface
mongodb_net_ipv6: false # Enable IPv6 support (disabled by default)
mongodb_net_maxconns: 65536 # Max number of simultaneous connections
mongodb_net_port: 27017 # Specify port number
## processManagement Options
mongodb_processmanagement_fork: false # Fork server process
## security Options
# Disable or enable security. Possible values: 'disabled', 'enabled'
mongodb_security_authorization: "disabled"
mongodb_security_keyfile: /etc/mongodb-keyfile # Specify path to keyfile with password for inter-process authentication
## storage Options
mongodb_storage_dbpath: /data/db # Directory for datafiles
mongodb_storage_dirperdb: false # Use one directory per DB
# The storage engine for the mongod database. Available values:
# 'mmapv1', 'wiredTiger'
mongodb_storage_engine: "{{ 'mmapv1' if mongodb_version[0:3] == '3.0' else 'wiredTiger' }}"
# mmapv1 specific options
mongodb_storage_quota_enforced: false # Limits each database to a certain number of files
mongodb_storage_quota_maxfiles: 8 # Number of quota files per DB
mongodb_storage_smallfiles: false # Very useful for non-data nodes
mongodb_storage_journal_enabled: true # Enable journaling
mongodb_storage_prealloc: true # Disable data file preallocation
# WiredTiger Options
mongodb_wiredtiger_cache_size: 1 # Cache size for wiredTiger in GB
## systemLog Options
## The destination to which MongoDB sends all log output. Specify either 'file' or 'syslog'.
## If you specify 'file', you must also specify mongodb_systemlog_path.
mongodb_systemlog_destination: "file"
mongodb_systemlog_logappend: true # Append to logpath instead of over-writing
mongodb_systemlog_path: /var/log/mongodb/{{ mongodb_daemon_name }}.log # Log file to send write to instead of stdout
## replication Options
mongodb_replication_replset: # Enable replication <setname>[/<optionalseedhostlist>]
mongodb_replication_replindexprefetch: "all" # specify index prefetching behavior (if secondary) [none|_id_only|all]
mongodb_replication_oplogsize: 1024 # specifies a maximum size in megabytes for the replication operation log
## setParameter options
# Configure setParameter option.
# Example :
mongodb_set_parameters: { "enableLocalhostAuthBypass": "true", "authenticationMechanisms": "SCRAM-SHA-1,MONGODB-CR" }
# MMS Agent
mongodb_mms_agent_pkg: https://cloud.mongodb.com/download/agent/monitoring/mongodb-mms-monitoring-agent_7.2.0.488-1_amd64.ubuntu1604.deb
mongodb_mms_group_id: ""
mongodb_mms_api_key: ""
mongodb_mms_base_url: https://mms.mongodb.com
# Log rotation
mongodb_logrotate: true # Rotate mongodb logs.
mongodb_logrotate_options:
- compress
- copytruncate
- daily
- dateext
- rotate 7
- size 10M
# password for inter-process authentication
# please regenerate this file on production environment with command 'openssl rand -base64 741'
mongodb_keyfile_content: |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# names and passwords for administrative users
mongodb_user_admin_name: siteUserAdmin
mongodb_user_admin_password: passw0rd
mongodb_root_admin_name: siteRootAdmin
mongodb_root_admin_password: passw0rd
```
#### Usage
Add `undergreen.mongodb` to your roles and set vars in your playbook file.
Example vars for authorization:
```yaml
mongodb_security_authorization: "enabled"
mongodb_users:
- {
name: testUser,
password: passw0rd,
roles: readWrite,
database: app_development
}
```
Example vars for oplog user:
```yaml
mongodb_oplog_users:
- {
user: oplog,
password: passw0rd
}
```
Required vars to change on production:
```yaml
mongodb_user_admin_password
mongodb_root_admin_password
mongodb_root_backup_name
# if you use replication and authorization
mongodb_security_keyfile
```
Example vars for replication:
```yaml
# It's a 'master' node
mongodb_login_host: 192.168.56.2
# mongodb_replication_params should be configured on each replica set node
mongodb_replication_params:
- { host_name: 192.168.56.2, host_port: "{{ mongodb_net_port }}", host_type: replica }
# host_type can be replica(default) and arbiter
```
And inventory file for replica set:
```ini
[mongo_master]
192.158.56.2 mongodb_master=True # it is't a really master of MongoDB replica set,
# use this variable for replica set init only
# or when master is moved from initial master node
[mongo_replicas]
192.168.56.3
192.168.56.4
[mongo:children]
mongo_master
mongo_replicas
```
Licensed under the GPLv2 License. See the [LICENSE.md](LICENSE.md) file for details.
#### Feedback, bug-reports, requests, ...
Are [welcome](https://github.com/UnderGreen/ansible-role-mongodb/issues)!