How to force Testcontainers to use specific docker image?

Question

I usually run my spring-boot-test junit sql tests on a Testcontainers setup like this:

spring.datasource.url=jdbc:tc:mariadb:10.5.8:///test
spring.datasource.username=test
spring.datasource.password=test

Question: when I omit the docker image value, like spring.datasource.url=jdbc:tc:mariadb:///test, how can I force to always use a fixed docker image version?

My goal is to provide a test-commons.jar that every project should include. So projects should all use the same default mariadb image defined in the commons jar, and not set the image explicit themselves.

Is that possible?

I have only heard about testcontainers, but spring.datasource.url is just a spring property and there are many ways to configure that; but I might be missing something here — Eugene
– Eugene, Commented Feb 9, 2021 at 18:20

bsideup · Accepted Answer · 2021-02-10 07:35:25Z

1

You can copy MariaDBContainerProvider, use "mymariadb" or "custommariadb" as the database type and set the desired version in newInstance().

answered Feb 10, 2021 at 7:35

bsideup

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