Grails 3 Setup application.yml production mongodb - mongodb

Question

How to set the use connectionstring which usess mongodb in production.
development:
grails:
mongodb:
connectionString: "mongodb://localhost:27017/fanfest"
production:
dataSource:
dbCreate: update
url: jdbc:h2:./prodDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE
properties:
jmxEnabled: true
initialSize: 5
maxActive: 50
minIdle: 5
maxIdle: 25
maxWait: 10000
maxAge: 600000
timeBetweenEvictionRunsMillis: 5000
minEvictableIdleTimeMillis: 60000
validationQuery: SELECT 1
validationQueryTimeout: 3
validationInterval: 15000
testOnBorrow: true
testWhileIdle: true
testOnReturn: false
jdbcInterceptors: ConnectionState
defaultTransactionIsolation: 2 # TRANSACTION_READ_COMMITTED
Working with Grails 3 version. Able to connect with mongodb in development environment. Kindly provide some suggestions to set the mongodb in production environment.

Answer 1

You currently have development pointing at a mongo instance. The production configuration is pointed at the in memory H2 database. If you would like to configure a mongo database for your production environment may I suggest you take a look at Getting Started guide for Mongo and GORM.
In the production section of your configuration file you can use the connection string parameter as follows:
production {
grails {
mongodb {
connectionString = "mongodb://localhost:27017/PROD_fanfest"
}
}
}
Please note I have used your development URL but changed the table name since I recommend you keep the development database and production database separate. Configuring production datasource to use Mongo is that easy. There are more configuration options described in the Getting Started documentation.
Relevant information on configuring options below:
options {
connectionsPerHost = 10 // The maximum number of connections allowed per host
threadsAllowedToBlockForConnectionMultiplier = 5
maxWaitTime = 120000 // Max wait time of a blocking thread for a connection.
connectTimeout = 0 // The connect timeout in milliseconds. 0 == infinite
socketTimeout = 0 // The socket timeout. 0 == infinite
socketKeepAlive = false // Whether or not to have socket keep alive turned on
writeConcern = new com.mongodb.WriteConcern(0, 0, false) // Specifies the number of servers to wait for on the write operation, and exception raising behavior
sslEnabled = false // Specifies if the driver should use an SSL connection to Mongo
socketFactory = … // Specifies the SocketFactory to use for creating connections
}