On this page:
https://docs.couchbase.com/server/6.0/getting-started/do-a-quick-install.html
It gives this command to start up the sandbox docker image:
docker run -t --name db -p 8091-8094:8091-8094 -p 11210:11210 couchbase/server-sandbox:6.0.0
It looks like the version should actually be 5.5.1?
(This doesn’t feel like the right place to file an issue, so if anybody knows the right place, lemme know…)