Externalized Grails 3 Spring Security Config - grails

Question

I am working on externalizing the .YML file in Grails 3.x. The code to make this work, is as follows:
In my Application.groovy, I am implementing the setEnviroment method form the EnvironmentAware interface.
#Override
void setEnvironment(Environment environment) {
try {
String configPath = System.properties["local.config.location"]
def ymlConfig = new File(configPath)
Resource resourceConfig = new FileSystemResource(ymlConfig)
YamlPropertiesFactoryBean ypfb = new YamlPropertiesFactoryBean()
ypfb.setResources(resourceConfig)
ypfb.afterPropertiesSet()
Properties properties = ypfb.getObject()
environment.propertySources.addFirst(new PropertiesPropertySource("local.config.location", properties))
} catch (Exception e) {
log.error("unable to load the external configuration file", e)
}
}
I have edited the bootRun task in the build to this:
bootRun {
jvmArgs = ['-Dlocal.config.location=external-config.yml']
}
When printing out the values in the setEnvironment method, the properties are indeed being read and added from the loaded object.
Now, for the fun part. When I add this code to my original application.yml file:
---
grails:
plugin:
springsecurity:
securityConfigType: 'InterceptUrlMap'
interceptUrlMap: [
{pattern: '/**', access: ['permitAll']}
]
providerNames: ['ldapAuthProvider', 'anonymousAuthenticationProvider']
ldap:
context:
managerDn: 'uid=admin,ou=system'
managerPassword: 'secret'
server: 'ldap://localhost:10389'
authorities:
groupSearchBase: 'ou=Groups,dc=aye,dc=com'
retreiveGroupRoles: true
retreiveDatabaseRoles: false
groupSearchFilter: 'member={0}'
search:
base: 'ou=Users,dc=aye,dc=com'
password:
algoritham: 'SHA-256'
---
Everything works just fine. When I cut and paste it out into the external yml file, I get this beautiful error in Firefox.
I can tell that the configuration is correct in the provided code, as I can add more roles and filters, and everything works just fine when in original application.yml file. It is only when reading from the external file does this fail. If I remove the security code from both .yml files, .ofc, my page looks strange but the firefox error disappears.
Has anyone got an idea as to why this can be the case?

Answer 1

One thing you can attempt to test if it will work, is rename your external-config.yml file to application.yml. I believe that the default name should be application, unless otherwise specified.
This article here shows a good example of its correct use
When you do that, try to read the properties in one of your classes, to make sure that the yml files are merging. You can read these properties using a command like this:
grailsApplication.config.getProperty("grails.plugin.springsecurity.securityConfigType")
Or, you can print out all of them, using the Holders utility
def config = Holders.config