I have two identical Docker Swarm Cluster.
In the first cluster I can access a certain container of a service with scaling:
# ping -c service_http.1
PING service_http.1 (10.0.4.125): 56 data bytes
64 bytes from 10.0.4.125: seq=0 ttl=64 time=0.150 ms
But in cluster 2 the name resolutions fails:
# ping service_http.1
ping: bad address 'service_http.1'
The two cluster are with: Docker: 20.10.8; Docker API: 1.41; Debian 11.
What can be wrong?
Thanks a lot for the help.