https://bz.apache.org/bugzilla/show_bug.cgi?id=62371
--- Comment #12 from Robert Rettig <robert@rettig.bayern> --- (In reply to Mark Thomas from comment #11) > 'data-service.tenant1-apps.svc' is a valid domain name so that should be OK. > > I don't know enough about docker to know if using 'tasks.service-name' in > that way is a valid usage or not. I think you are right. The docker feature for resolving tasks with dns should just be used in special cases like discovery https://github.com/docker/docker.github.io/pull/6420/files But even in that case is there are possibility to disable the new host domain validation in tomcat (environment, java runtime system property)? Here are some additional observations within docker swarm from a debian container with 'getent' from libc-bin package and 'host' binary from bind9-host package. :::RESOLVE (A) ::libc-bin:: root@a9348509c12f:/# /usr/bin/getent hosts data-service 10.0.0.21 data-service root@a9348509c12f:/# /usr/bin/getent hosts tasks.data-service 10.0.0.13 tasks.data-service ::bind9-host:: root@a9348509c12f:/# /usr/bin/host data-service data-service has address 10.0.0.21 Host data-service not found: 3(NXDOMAIN) root@a9348509c12f:/# /usr/bin/host tasks.data-service tasks.data-service has address 10.0.0.13 Host tasks.data-service not found: 3(NXDOMAIN) :::REVERSE (PTR) ::libc-bin:: root@a9348509c12f:/# /usr/bin/getent hosts 10.0.0.21 root@a9348509c12f:/# /usr/bin/getent hosts 10.0.0.13 10.0.0.13 data-test_data-service.1.j37493y41n0t9eehio3dze3vl.data-test_backend ::bind9-host:: root@a9348509c12f:/# /usr/bin/host -t PTR 10.0.0.21 Host 21.0.0.10.in-addr.arpa. not found: 3(NXDOMAIN) root@a9348509c12f:/# /usr/bin/host -t PTR 10.0.0.13 13.0.0.10.in-addr.arpa domain name pointer data-test_data-service.1.j37493y41n0t9eehio3dze3vl.data-test_backend. :::RESOLVE (A) the name from reverse ::libc-bin:: root@a9348509c12f:/# /usr/bin/getent hosts data-test_data-service.1.j37493y41n0t9eehio3dze3vl.data-test_backend 10.0.0.13 data-test_data-service.1.j37493y41n0t9eehio3dze3vl.data-test_backend ::bind9-host:: root@a9348509c12f:/# /usr/bin/host data-test_data-service.1.j37493y41n0t9eehio3dze3vl.data-test_backend data-test_data-service.1.j37493y41n0t9eehio3dze3vl.data-test_backend has address 10.0.0.13 Host data-test_data-service.1.j37493y41n0t9eehio3dze3vl.data-test_backend not found: 3(NXDOMAIN) -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org