Grails and multi tenancy - Multi tenancy setup with grails

I was playing with multi tenancy setup with grails.

While there were some examples I found most them were old and werent updated for recent grails versions.

Ran into a bunch of errors when I tried to use multitenancy plugin with spring security.

Had to try out a few things before i was able to correct all the errors and get this working.

I try here to give a step by step guide to setting up multitenancy for grails based apps.

Create a simple domain class

grails create-domain-class com.helloworld.Message

install spring security plugin

>grails install-plugin spring-security-core

Create the user and roles

grails s2-quickstart org.racetrack User Role

Install multitenant plugin

grails install-plugin multi-tenant

install Multi-Tenant Spring Security Integration

grails install-plugin multi-tenant-spring-security

Add to config.groovy

tenant {

mode = "multiTenant" // "singleTenant" OR "multiTenant"

datasourceResolver.type = "db"

resolver {

type = "request"

resolver.request.dns.type = "db"

request.dns.type = "db"

}

}

Annotate domain classes that are to be shared after importing Multitenat annotation

import com.infusion.tenant.groovy.compiler.MultiTenant;

@MultiTenant

Add to the User Class

/** for multi-tenant-acegi plugin **/

Integer userTenantId

Add the following constraints 

// Existing constraints

userTenantId(min: 0)

Create a dns map table

grails create-dns-map

Now with all the setup in place you should be able to run your app with multitenancy setup.