alertmanager pod start failed

[weilinqwe]

Alertmanager version: v0.15.2

[root@cloudhost1 prometheus]# kubectl get pod   -n monitoring                                                  
NAME                                                     READY     STATUS             RESTARTS   AGE
grafana-796ffb9558-4d4fw                                 1/1       Running            0          17m
monitor-prometheus-alertmanager-67dd877d66-xxdlj         1/2       CrashLoopBackOff   1          18s
monitor-prometheus-kube-state-metrics-78b6c5f4d9-fk2k7   1/1       Running            0          18m
monitor-prometheus-node-exporter-brk52                   1/1       Running            0          18m
monitor-prometheus-node-exporter-h8dgb                   1/1       Running            0          18m
monitor-prometheus-node-exporter-mlx88                   1/1       Running            0          18m
monitor-prometheus-node-exporter-xgznb                   1/1       Running            0          18m
monitor-prometheus-node-exporter-zc2hq                   1/1       Running            0          18m
monitor-prometheus-server-8f44b6c7d-hdtl4                2/2       Running            0          18m

[root@cloudhost1 prometheus]# kubectl logs  monitor-prometheus-alertmanager-67dd877d66-xxdlj -c prometheus-alertmanager-configmap-reload -n monitoring
2019/03/14 12:18:18 Watching directory: "/etc/config"
[root@cloudhost1 prometheus]# kubectl logs  monitor-prometheus-alertmanager-67dd877d66-xxdlj -c prometheus-alertmanager -n monitoring
level=info ts=2019-03-14T12:19:58.378674034Z caller=main.go:174 msg="Starting Alertmanager" version="(version=0.15.2, branch=HEAD, revision=d19fae3bae451940b8470abb680cfdd59bfa7cfa)"
level=info ts=2019-03-14T12:19:58.378827621Z caller=main.go:175 build_context="(go=go1.10.3, user=root@3101e5b68a55, date=20180814-10:53:39)"
level=warn ts=2019-03-14T12:19:58.394107651Z caller=cluster.go:148 component=cluster err="couldn't deduce an advertise address: no private IP found, explicit advertise addr not provided"
level=error ts=2019-03-14T12:19:58.421706704Z caller=main.go:199 msg="unable to initialize gossip mesh" err="create memberlist: Failed to get final advertise address: No private IP address found, and explicit IP not provided"

Anyone can give a clue?

[simonpasquier]

The pod has an IP address from a public Internet subnet and the memberlist library won't start unless you explicitly provide the address via the --cluster.advertise-address parameter. Assuming that the pod isn't effectively exposed directly to the Internet, you should be able to use the Downward API to pass the value to the container.

I'm closing it for now. If you have further questions, please use our user mailing list, which you can also search.