run conditional migration sh script via docker compose yml - docker-compose

Question

Been googling around for this but I can't get the exact answer.
I am building a mobile app and I want to run additional migration scripts when the environment is "local".
I have a docker-compose-local.yml which builds the db
database:
build:
context: ./src/Database/
dockerfile: Dockerfile
container_name: database
ports:
- 1401:1433
environment:
ACCEPT_EULA: 'Y'
SA_PASSWORD: 'password'
ENVIRONMENT: 'local'
networks:
- my-network
and then a Dockerfile with an entrypoint
ENTRYPOINT ["/usr/src/app/entry-point.sh"]
And then a script that runs migrations.
#!/bin/bash
# wait for MSSQL server to start
export STATUS=1
i=0
MIGRATIONS=$(ls migrations/*.sql | sort -V)
SEEDS=$(ls seed/*.sql)
while [[ $STATUS -ne 0 ]] && [[ $i -lt 30 ]]; do
i=$i+1
/opt/mssql-tools/bin/sqlcmd -t 1 -U sa -P $SA_PASSWORD -Q "select 1" >> /dev/null
STATUS=$?
done
if [ $STATUS -ne 0 ]; then
echo "Error: MSSQL SERVER took more than thirty seconds to start up."
exit 1
fi
echo "======= MSSQL SERVER STARTED ========" | tee -a ./config.log
# Run the setup script to create the DB and the schema in the DB
/opt/mssql-tools/bin/sqlcmd -S localhost -U sa -P $SA_PASSWORD -d master -i create-database.sql
/opt/mssql-tools/bin/sqlcmd -S localhost -U sa -P $SA_PASSWORD -d master -i create-database-user.sql
for f in $MIGRATIONS
do
echo "Processing migration $f"
/opt/mssql-tools/bin/sqlcmd -S localhost -U sa -P $SA_PASSWORD -d master -i $f
done
# RUN THIS ONLY FOR ENVIRONMENT = local
for s in $SEEDS
do
echo "Seeding $s"
/opt/mssql-tools/bin/sqlcmd -S localhost -U sa -P $SA_PASSWORD -d master -i $s
done
Currently everything works perfectly fine, except the seeds are added for all environments.
I only want to run the seed scripts if environment = local.
How can this condition be written into this script?
Alternative is there a cleaner way to do this?
Thanks

Answer 1

There are multiple ways to achieve your goal. Three that come to mind quickly are:
Insert and check the environment variable in the script (What you are trying to do now)
Have two versions of the script in the Container and change the entrypoint in the docker-compose file (either with environment variables or by using multiple compose files)
Build two different versions of the docker image for local and production environment
With your current setup the first alternative is the easiest:
# RUN THIS ONLY FOR ENVIRONMENT = local
if [[ "$ENVIRONMENT" == "local" ]]; then
for s in $SEEDS
do
echo "Seeding $s"
/opt/mssql-tools/bin/sqlcmd -S localhost -U sa -P $SA_PASSWORD -d master -i $s
done
fi