Configuration MongoDB

MongoDB Configuration

Changing MongoDB Data Store Folder

• Make database folder /data/mongodb

sudo mkdir -p /data/mongodb
sudo chmod 777 /data/mongodb

• Change configuration path database mongo

sudo nano /etc/mongodb.conf
-------
# dbPath: /var/lib/mongodb
  dbPath: /data/mongodb

Changing MongoDB Port

• Default Port Connection

# network interfaces
net:
  port: 31399
  bindIp: 127.0.0.1

Changing MongoDB Authorization (Security)

• Enable authorization

sudo nano /etc/mongodb.conf
-------
security:
  authorization: "enabled"

• Default Configuration

mongo port : 31399

mongo auth:
    admin :
        user: "mongo_root"
        pass: "r00t_p4ssw0rd"
        role: root
    db_mongo :
        user: "mongo_user
        pass: "us3r_p4ssw0rd"
        role: read & write -> db_mongo db

• Setup Authentification User

mongo

use [db_name]
db.createUser({user: "[username]", pwd: "[password]", roles: [ { role: "[roles_name]", db: "[db_name]" } ]})
show collections
-------
use admin
db.createUser({user: "mongo_root", pwd: "r00t_p4ssw0rd", roles: [ { role: "root", db: "admin" } ]})
show collections

use db_mongo
db.createUser({user: "mongo_user", pwd: "us3r_p4ssw0rd", roles: [ { role: "readWrite", db: "db_mongo" } ]})
show collections

• Restart MongoDB Services (with new configuration)

ps aux | grep -i mongod | awk {'print $2'} | sudo xargs kill -9
sudo mongod --fork --config /etc/mongod.conf

Login With Authorization

mongo mongodb://127.0.0.1:[port] -u [username] -p --authenticationDatabase [db_name]
[ENTER PASSWORD]
-------
mongo mongodb://127.0.0.1:31399 -u mongo_root -p --authenticationDatabase admin
mongo mongodb://127.0.0.1:31399 -u mongo_user -p --authenticationDatabase db_mongo

Default /etc/mongodb.conf

# mongod.conf

# for documentation of all options, see:
#   http://docs.mongodb.org/manual/reference/configuration-options/

# Where and how to store data.
storage:
# dbPath: /var/lib/mongodb
  dbPath: /data/mongodb
  journal:
    enabled: true
#  engine:
#  mmapv1:
#  wiredTiger:

# where to write logging data.
systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongodb/mongod.log

# network interfaces
net:
  port: 31399
  bindIp: 127.0.0.1


# how the process runs
processManagement:
  timeZoneInfo: /usr/share/zoneinfo

security:
  authorization: "enabled"

#operationProfiling:

#replication:

#sharding:

## Enterprise-Only Options:

#auditLog:

#snmp:

Default Rails Connection

• Configuration MongoDB at config/mongoid.yml

#################################
#   MongoDB                     #
#################################
development:
# Configure available database sessions. (required)
  clients:
    default:
      uri: 'mongodb://mongo_user:us3r_p4ssw0rd@127.0.0.1:31399/db_mongo' 
      options: 
        consistency: :strong
        max_retries: 30
        retry_interval: 1
        timeout: 15

test:
  clients:
    default:
      database: db_mongo
      hosts:
        - localhost:31399
      options:
        read: primary
        # In the test environment we lower the retries and retry interval to
        # low amounts for fast failures.
        max_retries: 1
        retry_interval: 0

production:
  # Configure available database sessions. (required)
  clients:
    default:
      # The standard MongoDB connection URI allows for easy replica set 
      # connection setup. 
      # Use environment variables or a config file to keep your 
      # credentials safe.
      uri: 'mongodb://mongo_user:us3r_p4ssw0rd@127.0.0.1:31399/db_mongo' 
      options: 
        # The default consistency is :eventual, which reads from 
        # secondaries when possible. 
        # Strong forces reads to primary. 
        # We recommend using strong consistency.
        consistency: :strong

        # max_retries specifies the number of times to attempt an 
        # operation before giving up. Default 30 seconds
        max_retries: 30

        # retry_interval specifies the number of seconds to wait before 
        # retrying a single operation. Default 1 second.
        retry_interval: 1

        # The default timeout is 5, which is the time in seconds for an 
        # operation to time out.
        # We recommend 15 because it allows for plenty of time in most 
        # operating environments.
        # Mongoid doubles the configured value (known issue) so 15 
        # results in a timeout of 30s.
        # Note that if you have a long-running query (over 30 seconds), 
        # it will time out.
        # See our example for long-running queries in the blog post 
        # referenced above.
        timeout: 15

        # Set this to ensure that your writes are a round-trip operation
        # and are confirmed by the system. Default (false).
        safe: true

        # refresh_interval specifies the number of seconds to cache information
        # about a node. Default is 300 seconds (5 minutes).
        refresh_interval: 10

Notes

• References: Digital Ocean - MongoDB