How to handle multiple schemas in a single migrate with flyway - flyway

Question

I'm totally new to Flyway but I'm trying to migrate a number of identical test databases using the docker-compose flyway+mysql arrangement described in https://github.com/flyway/flyway-docker
As far as I can tell, the migrate command can take multiple schemas in its -schemas argument but it only seems to apply the actual SQL migration to the first schema in the list.
For example, when I run the migrate with schemas=test_1,test_2,test_3, flyway creates all three databases but only creates the tables specified in the migration file on the first test_1 database.
Is there a way to apply the SQL migration file to all the schemas in the list?

Answer 1

I'm going to leave this question up in case someone can still answer how multiple schemas is useful if the migration file isn't applied to all databases in the list. But, I was able to handle multiple databases in a docker-compose by overriding the flyway entrypoint and command.
So now my docker-compose service looks like:
services:
flyway:
image: flyway/flyway:6.1.4
volumes:
- ./migrations:/flyway/sql
depends_on:
- db
entrypoint: ["bash"]
command: > -c "/flyway/flyway -url=jdbc:mysql://db -schemas=test1 migrate;
/flyway/flyway -url=jdbc:mysql://db -schemas=test2 migrate"

Answer 2

For me what worked was breaking up my migrations into separate executions in my docker-compose file along with docker-postgresql-multiple-databases as follows:
version: '3.8'
services:
postgres-db:
image: 'postgres:13.3'
environment:
POSTGRES_MULTIPLE_DATABASES: 'customers,addresses'
POSTGRES_USER: 'pocketlaundry'
POSTGRES_PASSWORD: 'iceprism'
volumes:
- ./docker-postgresql-multiple-databases:/docker-entrypoint-initdb.d
expose:
- '5432' # Publishes 5432 to other containers (addresses-flyway, customers-flyway) but NOT to host machine
ports:
- '5432:5432'
addresses-flyway:
image: flyway/flyway:7.12.0
command: -url=jdbc:postgresql://postgres-db:5432/addresses -schemas=public -user=pocketlaundry -password=iceprism -connectRetries=60 migrate
volumes:
- ./sports-ball-project/src/test/resources/db/addresses/migrations:/flyway/sql
depends_on:
- postgres-db
links:
- postgres-db
customers-flyway:
image: flyway/flyway:7.12.0
command: -url=jdbc:postgresql://postgres-db:5432/customers -schemas=public -user=pocketlaundry -password=iceprism -connectRetries=60 migrate
volumes:
- ./sports-ball-project/src/test/resources/db/customers/migrations:/flyway/sql
depends_on:
- postgres-db
links:
- postgres-db