How to pass environment variables to the gradle wrapper build using only command line?

Question

I am trying to pass env variables locally with strictly a command line command. At deploy, these variables get passed into the docker container, but when running locally, they are not present and need to be set locally.

They need to be removed before committing though because they are access keys so i dont want them exposed in the repo. That is why running tests locally (without an IDE) would require a command that passes these variables.

I have already tried this:

./gradlew clean build -Dspring.profiles.active=local -DMY_ENV_VAR1=xxxxxx -DMY_ENV_VAR2=xxxxxx

and it doesnt seem to be working. i cant find the docs for the build command's options, but i thought this was how you pass them. what am i doing wrong here? or is it not possible?

Answer 1

For passing env variables

MY_ENV_VAR1=xxxxxx MY_ENV_VAR2=xxxxxx ./gradlew bootRun

For arguments/overriding properties values

./gradlew bootRun --args='--spring.profiles.active=local --db.url=something --anotherprop=fafdf'

For both passing env variable and overriding properties values.

MY_ENV_VAR1=xxxxxx MY_ENV_VAR2=xxxxxx ./gradlew bootRun --args='--spring.profiles.active=local --db.url=something --anotherprop=fafdf'

Answer 2

Another reason for environment variables not working is the gradle daemon.

Run this to kill any old daemons:

./gradlew --stop

Then try again. Lost far too much time on that.

Answer 3

This related post worked for me: https://stackoverflow.com/a/57890208/1441210

The solution was to use the --args option of gradlew to get the environment variable to be passed to the spring boot app:

./gradlew bootRun --args='--spring.profiles.active=local'

Answer 4

I just put the env variable setting before calling command as the way a regular Unix shell does. Work with my Zsh.

MY_ENV_VAR1=xxxxxx MY_ENV_VAR2=xxxxxx gradlew clean test