grails war tomcat with external config file

问题

I want to add external config data. So I added in the main Config.groovy file the following line.

I exported the environment variable

DASH_CONFIG=<path_to_external_configfile>/extConfig.properties

extConfig.properties

simpleBSMDash.default.serverName = "test.it.com"
simpleBSMDash.default.refreshInterval = "5"

Config.groovy

if(System.getenv('DASH_CONFIG')) {
    println( "Including configuration file: " + System.getenv('DASH_CONFIG'));
    grails.config.locations = [ 
        "classpath:exthConfig.properties",
        "file:./extConfig.properties",
        "file:${System.getenv('DASH_CONFIG')}"]
} else {
    println "No external configuration file defined."
}

Bootstrap.groovy

I'm initialisation some config parameter in Boostrap.groovy. for example

import org.codehaus.groovy.grails.commons.ConfigurationHolder


new AdminSettings(
    refreshInterval:"${ConfigurationHolder.config.simpleBSMDash.default.refreshInterval}", serverName:"${ConfigurationHolder.config.simpleBSMDash.default.serverName}").save(failOnError:true)

When running locally the app through: grails -Denv=DEV run-app. Everything works fine, the intance AdminSettings is created and initialised with the expected values.

When I deployed the war file on my tomcat server, the intance AdminSettings is not intantiated. Yet I did export environment variable

DASH_CONFIG=<path_to_external_configfile>/extConfig.properties.

I event put the extConfig.properties file in $TOMCAT_HOME/lib folder, it did not work as well.

I rename it to extConfig.groovy, it did not help either.

I search through stackflow but did not find out a correct answer.

Does anyone have an idea?

回答1:

Here's what works for us:

In conf/Config.groovy:

grails.config.locations = [ 
  "classpath:${appName}.properties", 
  "file:${userHome}/.grails/${appName}-config.properties"
  ]

It works in Windows, though the places Groovy/Windows thinks is home (~) can be a bit surprising. Your attempt to access an environment variable from Config.groovy looks a bit risky...

来源：https://stackoverflow.com/questions/28437929/grails-war-tomcat-with-external-config-file

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