grafana/cortex-jsonnet

Question about alert manager peers address and $_config.cluster

anarcher opened this issue · 2 comments

anarcher commented

Hello,
I have a question that $._config.cluster is suitable or not to use for alertmanager's peer address. In k8s world, the address works with ...%s.cluster.local:%s (this means that $._config.cluster = 'cluster' ?) What is the meaning of $._config.cluster? :-)

https://github.com/grafana/cortex-jsonnet/blob/main/cortex/alertmanager.libsonnet#L14

 local peers = if isHA then
    [
      'alertmanager-%d.alertmanager.%s.svc.%s.local:%s' % [i, $._config.namespace, $._config.cluster, $._config.alertmanager.gossip_port]
      for i in std.range(0, $._config.alertmanager.replicas - 1)
    ]
  else [],
pracucci commented

In k8s world, the address works with ...%s.cluster.local:%s (this means that $._config.cluster = 'cluster' ?) What is the meaning of $._config.cluster? :-)

The $._config.cluster is used to customise the cluster name in the local DNS. We have clusters named differently but if in your case it's cluster then you can just set it to cluster.

  • 👍1
anarcher commented

Thanks for the kind reply. :-)