Document how to share services with Docker Compose

Closes gh-37886

spring-boot-project/spring-boot-docs/src/docs/asciidoc/howto/docker-compose.adoc

@@ -26,3 +26,13 @@ services:
 ----
 
 With this Docker Compose file in place, the JDBC URL used is `jdbc:postgresql://127.0.0.1:5432/mydb?ssl=true&sslmode=require`.
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+
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+[[howto.docker-compose.sharing-services]]
+=== Sharing services between multiple applications
+
+If you want to share services between multiple applications, create the `compose.yaml` file in one of the applications and then use the configuration property configprop:spring.docker.compose.file[] in the other applications to reference the `compose.yaml` file.
+You should also set configprop:spring.docker.compose.lifecycle-management[] to `start-only`, as it defaults to `start-and-stop` and stopping one application would shut down the shared services for the other still running applications, too.
+Setting it to `start-only` won't stop the shared services on application stop, but a caveat is that if you shut down all applications, the services stay running.
+You can stop the services manually by running `docker compose stop` on the commandline in the directory which contains the `compose.yaml` file.