this is my spring datasource config
spring: datasource: driver-class-name: org.mariadb.jdbc.Driver url: ex.com username: exId password: exPw
and we know we can use os environment variable for spring datasource config like this
# export SPRING_DARASOURCE_URL=ex.com
But we can not export SPRING_DARASOURCE_DRIVER-CLASS-NAME because of ‘-‘ like this
# export SPRING_DARASOURCE_DRIVER-CLASS-NAME=org.mariadb.jdbc.Driver
So if i wanna get spring.datasource.driver-class-name via os environment variable,
what i have to do?
In most cases, any punctuation like those hyphens can be converted to underscores for the system environment variable, e.g. SPRING_DATASOURCE_DRIVER_CLASS_NAME. In some earlier versions of Spring this wasn’t exactly standardized yet and some properties might drop the hyphens entirely, e.g. SPRING_DATASOURCE_DRIVERCLASSNAME.
Another approach: set the system env var, JAVA_TOOL_OPTIONS, with any desired Java/JVM options like:
JAVA_TOOL_OPTIONS=-server -Xmx1g -Dspring.datasource.driver-class-name=com.mysql.jdbc.Driver