Hi, Alertmanager pod is stuck with CrashLoopBackOff in Openshift kubernetes dualstack environment when the alertmanager service uses the same port(9094) for TCP and UDP. Same build works fine on Openshift kubernetes non-dualstack environment.
*Environment:* Openshift cluster with both IPv4 and IPv6 interface. Aspenmesh-1.11.8-am4 alertmanager - v0.24.0 *Observation:* For alertmanager service, when tried with different ports for TCP(9094) and UDP(9095) the deployment is successful. *Query:* 1. Is there a need to use different ports for UDP and TCP protocols for alertmanager service when deployed in a dualstack k8s environment? 2. If yes, how does the configured UDP port affect the traffic flow to the alertmanager service? This issue is happening on a fresh installation(not upgrade/rollback) In side-car logs of alertmanager pod, 2022-10-18T20:37:45.436549Z warning envoy config gRPC config for type.googleapis.com/envoy.config.listener.v3.Listener rejected: Error adding/updating listener(s) virtualInbound: error adding listener '0.0.0.0:15006': filter chain '0.0.0.0_9094' has the same matching rules defined as '0.0.0.0_9094' virtualInbound6: error adding listener '[::]:15006': filter chain '::_9094' has the same matching rules defined as '::_9094' In istiod logs 2022-10-18T21:39:42.878435Z info ads ADS: new connection for node:naperilg27vzwcchf-yz-nk-sm-111-sm-cpro-alertmanager-0.naperilg27vzwcchf-yz-nk-sm-111-1039 2022-10-18T21:39:42.887110Z info ads CDS: PUSH request for node:naperilg27vzwcchf-yz-nk-sm-111-sm-cpro-alertmanager-0.naperilg27vzwcchf-yz-nk-sm-111 resources:336 size:365.9kB 2022-10-18T21:39:43.126716Z info ads EDS: PUSH request for node:naperilg27vzwcchf-yz-nk-sm-111-sm-cpro-alertmanager-0.naperilg27vzwcchf-yz-nk-sm-111 resources:140 size:62.8kB empty:0 cached:140/140 2022-10-18T21:39:43.149105Z info ads LDS: PUSH request for node:naperilg27vzwcchf-yz-nk-sm-111-sm-cpro-alertmanager-0.naperilg27vzwcchf-yz-nk-sm-111 resources:263 size:648.6kB 2022-10-18T21:39:43.466633Z info ads RDS: PUSH request for node:naperilg27vzwcchf-yz-nk-sm-111-sm-cpro-alertmanager-0.naperilg27vzwcchf-yz-nk-sm-111 resources:23 size:43.8kB 2022-10-18T21:39:43.466671Z warn ads ADS:LDS: ACK ERROR naperilg27vzwcchf-yz-nk-sm-111-sm-cpro-alertmanager-0.naperilg27vzwcchf-yz-nk-sm-111-1039 Internal:Error adding/updating listener(s) virtualInbound: error adding listener '0.0.0.0:15006': filter chain '0.0.0.0_9094' has the same matching rules defined as '0.0.0.0_9094' 2022-10-18T21:40:48.181115Z info ads ADS: "10.129.12.58:53080" naperilg27vzwcchf-yz-nk-sm-111-sm-cpro-alertmanager-0.naperilg27vzwcchf-yz-nk-sm-111-1039 terminated rpc error: code = Canceled desc = context canceled -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/CAAB105SGR7YmsZgUZTbYjvF0KDT7KbfVsBOcs_6VjN-8ke0bHA%40mail.gmail.com.
