Change file's owner when copying resources with testcontainers

[g4s8]

Hi, I'm trying to copy and mount files into a container with user and group permissions. I explained the problem in details in SO question but didn't get answers there: https://stackoverflow.com/q/67869196/1723695

First, I need to mount some static resource into a container using withClassPathResourceMapping:

container.withClassPathResourceMapping(
  "/path/to/res",
  "/etc/app/config.name",
  BindMode.READ_ONLY
)

And second, copy data to container file with copyFileToContainer:

container.copyFileToContainer(
 Transferable.of(bin /* byte[] */),
 "/var/app/resource.name"
)

Both files are used by the application in container on start, but the application is running with app:app user. How can I copy and mount resources with correct ownership?

[rkwon-retool]

i imagine this never got resolved, sadly.