Tomcat 8 + Docker : add custom directory in classpath (Method #1 : modify conf/catalina.properties)

Dockerfile

FROM tomcat:8.5-jre8

# $CATALINA_HOME is defined in tomcat image
ADD target/my-webapp*.war $CATALINA_HOME/webapps/my-webapp.war

# Application config
RUN mkdir $CATALINA_HOME/app_conf/
ADD src/main/config/test.properties $CATALINA_HOME/app_conf/

# Modify property 'shared.loader' in catalina.properties
RUN sed -i -e 's/^shared.loader=$/shared.loader="${catalina.base}\/app_conf"/' $CATALINA_HOME/conf/catalina.properties

# Check : docker exec my-webapp cat /usr/local/tomcat/conf/catalina.properties

Thanks for the gist. It's working perfectly.

Thanks !

Thank you for this. Saved me a lot of time!!