Im using docker-compose, and Im using env file with my local variables. I need to pass array variable. I have tried:
TAGS="12345","67890"
or
TAGS=["12345","67890"]
or
TAGS=("12345" "67890")
Im getting always error:
List(WrongType(STRING,Set(LIST, OBJECT),Some(ConfigValueLocation(file:/src/target/scala-2.12/classes/application.conf,86))
Any idea how to achieve this ?
As Confidence mentioned above, write a comma separated string:
TAGS=12345,67890
Then in your application (Python for instance):
os.getenv('TAGS').split(',')
Using Spring Boot Framework, this can be achieved with the SPRING_APPLICATION_JSON property:
services:
my-app:
image: my-app:latest
environment:
- SPRING_APPLICATION_JSON={
"TAGS":[12345,67890]
}
ports:
- "8080:8080"
If you finally use your ENV variable in a bash script you may try Command Substitution principal
.env file:
ARRAY_BODY_EXPR="cat dog mouse frog"
In Dockerfile:
SHELL ["/bin/bash", "-c"]
RUN myArray=( $(echo ${ARRAY_BODY_EXPR}) );\
for str in ${myArray[@]}; do \
# do something with str
done
docker-compose.yml, you might want to add it as a comma-separated-string, and explode it to different elements as a comma (using a bash script).