Hi all, Designate has a requirement that appears to be a first for TripleO. It needs to deploy miniDNS instances on the internal network but each are accessible from the public network so external bind instances can sync with them. This is done by mapping port numbers on the VIP to each miniDNS instances [1] e.g. 10.0.0.5:16000 --> 172.16.2.184:5354 10.0.0.5:16001 --> 172.16.2.185:5354 10.0.0.5:16002 --> 172.16.2.186:5354 . . . <for each controller> The haproxy configuration is relatively straightforward [2]. There would be no problem if it the haproxy puppet managed the firewall rules, but for typical deployments we appear to disable this [3] and rely on the tripleo.firewall ansible module instead. The complicating factors are: a. the ports range depends on the number of miniDNS instances. b. the miniDNS deployment needs to set firewall rules wherever haproxy happens to live as they are not guaranteed to be on the same host. AFAICT, our ansible based firewall rule mechanism doesn't allow for setting firewall rules on hosts in addition to the ones that the service is being deployed on. Possible solutions I've been considering: a. Have haproxy puppet create firewall rules on the public API network and use tripleo.firewall for everything else. I think we generally don't distinguish which networks firewall rules are applicable to so this would be an "interesting", pervasive change. This is in PID 1's wheelhouse and I'd be interested in how they feel about this. b. Somehow create a jinja-ed firewall rule for haproxy that gets processed at deploy time so details could be filled in using cloud information. This seems like it would be kind of fragile, may not even be possible and depends on details of the framework I'm not familiar with. c. Extend tripleo.firewall or tripleo.iptables to process jinja'd rules - but that's problematic because it needs to be set on the haproxy host, and miniDNS is elsewhere. d. Create some ansible that gets run in the haproxy hosts that generates the firewall rules based on cloud info. I feel this is a bit ugly. Does anyone have any suggestions on other solutions or thoughts on the above? Cheers, Brent 1. https://bugzilla.redhat.com/show_bug.cgi?id=1897319 The TripleO HAProxy instance needs to be configured for BIND->miniDNS AXFR 2. https://review.opendev.org/c/openstack/puppet-tripleo/+/828169 Designate: create proxy ports on external VIP to access miniDNS workers. 3. https://bugs.launchpad.net/tripleo/+bug/1961799 haproxy template tasks to apply IPTables rules are no ops. -- Brent Eagles Principal Software Engineer Red Hat Inc.