Two sites both running solr (different versions) collide

[seanr]

I have a few sites with a solr 8 service and another with a solr 7 service all running at the same time. They're completely different codebases, lando files, etc. When I go to Search API in the one running solr 7, it's picking up the version from one of the ones running solr 8 - somehow the service is bleeding outside the container. How is this even possible? Shouldn't the proxy stuff prevent that like it does with appserver?

I had to shut everything down except the solr 7 site to get it to work.