docker-compose use extra_hosts with container id -


i have dockerized app needs talk external (not dockerized) oracle database.

the app works on local machine if append result of hostname command localhost entry in /etc/hosts file. otherwise error oracledb driver:

caused by: oracle.net.ns.netexception: listener refused connection following error: ora-12514, tns:listener not know of service requested in connect descriptor

i log in container , edit /etc/hosts manually, avoid manual step after rebuilding. how keep file date?

furthermore seems hostname set docker container id.

is there way reference container id inside docker-compose.yml file?

maybe way set specific hostname container?

set hostname: foo in docker-compose file , use hostname foo instead hosname based on docker id.


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