Extend the akka-simple-cluster to work with Istio mesh on k8s #2
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* Update to latest version of akka-management * Include workarounds to make cluster bootstrap work with istio as documented in akka/akka-management#209 (comment)
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This has been tested to work with |
| apiVersion: v1 | ||
| fieldPath: status.podIP | ||
| - name: "DYN_JAVA_OPTS" | ||
| value: "-Dakka.remote.netty.tcp.hostname=${HOSTNAME//./-}.default.pod.cluster.local -Dakka.management.http.hostname=${HOSTNAME//./-}.default.pod.cluster.local" |
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Is the replace necessary? Is it even possible to have dot in the pod hostname? I think if you try to create a pod with dot within the name you get the error: a DNS-1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character
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@gkocur - Yes, replacement is necessary. It is actually the IP address which has dots, which is being replaced by hyphens (so 127.0.0.1 would become 127-0-0-1..). HOSTNAME env variable is infact set in the previous line just above this one. This way of translation of pod IP to pod's dns is defined by kubernetes.
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@gkocur - Could you pls let me know if this needs more work or if i wasn't clear explaining the need to replace? |
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this PR introduces dynamically setting (by
eval-ing the env var) JAVA_OPTS (similar to lightbend's reactive-app) and istio mesh setup as described in workaround at akka/akka-management#209 (comment)