Opensearch-dashboard pod not assining ipv6 address inside the pod in kubernates

[ganilmca]

Hi Team,

We were unable to do port-forward in opensearch-dashboard pod in kubernates cluster by using ipv6 address like below command.

kubectl port-forward opensearch-dashboards-57b46c69ff-q25pw 5601:5601 --address [2a00:fbc:3110:1502:b520:22:1:0] -n ns

And also unable to run curl command like below.

curl -gkv -u admin:admin http://[2a00:fbc:3110:1502:c01e:b55:c9f1:5101]:5601

• About to connect() to 2a00:fbc:3110:1502:c01e:b55:c9f1:5101 port 5601 (#0)
• Trying 2a00:fbc:3110:1502:c01e:b55:c9f1:5101...
• Connection refused
• Failed connect to 2a00:fbc:3110:1502:c01e:b55:c9f1:5101:5601; Connection refused
• Closing connection 0 curl: (7) Failed connect to 2a00:fbc:3110:1502:c01e:b55:c9f1:5101:5601; Connection refused

We were getting "Connection refused" here.

When i see inside pod it showing empty in server host [opensearch-dashboards@kibana-opensearch-dashboards-676b8d69c4-tbn55 ~]$ env | grep SERVER SERVER_HOST=

We are using in our values.yaml file like below. serverHost: "eth0:ipv6" serverHost: "global:ipv6" serverHost: "[::0]"

service: type: ClusterIP ipFamilies:

• IPv6

Still we were unable to deploy the opensearch-dashboard pod.

Please tell us how to overcome this issue.

Thanks, Anil

[prudhvigodithi]

[Untriage] Hey @ganilmca happy to help but this looks to me more like an error from kubernetes end and not with OpenSearch helm chart? Did you setup work with regular ipv4? Also did you set use server.host to set the ipv6?

Adding @kavilla @AMoo-miki is there a limitation setting server.host with an ipv6 from OpenSearch Dashboards?

@bbarani @peterzhuamazon @premkirank @TrungBui59