Proper way to mount configs in Splunk Docker Container

Hello, currently working on Spinning up Splunk Containers using the splunk latest image. Works great when using all defaults but when I try and bind mount some of my existing configs that I wish to use, it seems the files are either getting locked or not being used. For example, for the splunk db connect app my connection information appears but states it's invalid? and when copied manually over to the container, it works. i've pinned it down to the identities.conf file that is causing the issue, perhaps there is a better way to bring config files over when spinning up the container. Another example is just copying MIBS files seems has no effect but works when copied manually... Thanks!