Unfortunately that won't work, as the maas host is the same, regardless of the environment name juju uses or the maas user that allocated the machine. So using e.g. "node-3-juju-machine-1-lxc-1.maas" won't change much. Unlike other providers and resources that we tag using the environment UUID in similar cases (to disambiguate and "namespace" the resources), this is not very useful for container hostnames (who would want to see e.g. "juju-my-maas-env-deadbeef-0bad-f00d-12345678798-machine-1-lxc-1.maas" as a hostname?)
Unfortunately that won't work, as the maas host is the same, regardless of the environment name juju uses or the maas user that allocated the machine. So using e.g. "node-3- juju-machine- 1-lxc-1. maas" won't change much. Unlike other providers and resources that we tag using the environment UUID in similar cases (to disambiguate and "namespace" the resources), this is not very useful for container hostnames (who would want to see e.g. "juju-my- maas-env- deadbeef- 0bad-f00d- 12345678798- machine- 1-lxc-1. maas" as a hostname?)