Can't resolve hostnames between docker containers
问题 I have two containers created in separate compose files (done for application isolation -- each application may have multiple containers defined in the compose file such as a backing database). These containers are linked via an external network named "common". An example compose file would be: version: '2' services: rabbitmq: image: "rabbitmq:3-management" hostname: "rabbitmq" container_name: "rabbitmq" environment: RABBITMQ_ERLANG_COOKIE: "SWQOKODSQALRPCLNMEQG" RABBITMQ_DEFAULT_USER: