dopic opened a new issue, #12091: URL: https://github.com/apache/apisix/issues/12091
### Current Behavior When installing apisix through the [Helm chart](https://github.com/apache/apisix-helm-chart) in a Kubernetes cluster on EKS with IPV6, it causes a communication failure between APISix and ETCD. The error in the APISix (Gateway) Pod: **http_init(): failed to load the configuration: http://apisix-etcd.apisix-system.svc.cluster.local:2379: No address associated with hostname** **Note:** I managed to make it work by updating the APISix configmap, and pointing the host directly to the IPV6 of the etcd Service, in the format **http://[::]:2379**, but I think this is not the best solution. ### Expected Behavior The expected behavior is that the connection will be successful. ### Error Logs /usr/local/openresty//luajit/bin/luajit ./apisix/cli/apisix.lua init /usr/local/openresty//luajit/bin/luajit ./apisix/cli/apisix.lua init_etcd 2025/03/25 16:47:31 [warn] 1#1: [lua] health_check.lua:114: report_failure(): update endpoint: http://apisix-etcd.apisix-system.svc.cluster.local:2379 to unhealthy nginx: [warn] [lua] health_check.lua:114: report_failure(): update endpoint: http://apisix-etcd.apisix-system.svc.cluster.local:2379 to unhealthy 2025/03/25 16:47:31 [error] 1#1: [lua] init.lua:98: http_init(): failed to load the configuration: http://apisix-etcd.apisix-system.svc.cluster.local:2379: No address associated with hostname nginx: [error] [lua] init.lua:98: http_init(): failed to load the configuration: http://apisix-etcd.apisix-system.svc.cluster.local:2379: No address associated with hostname 2025/03/25 16:47:31 [warn] 51#51: *2 [lua] plugin.lua:205: load(): new plugins: {"ext-plugin-pre-req":true,"fault-injection":true,"mocking":true,"serverless-pre-function":true,"cors":true,"ip-restriction":true,"ua-restriction":true,"referer-restriction":true,"csrf":true,"uri-blocker":true,"request-validation":true,"chaitin-waf":true,"multi-auth":true,"openid-connect":true,"authz-casbin":true,"authz-casdoor":true,"wolf-rbac":true,"ldap-auth":true,"hmac-auth":true,"basic-auth":true,"jwt-auth":true,"jwe-decrypt":true,"key-auth":true,"consumer-restriction":true,"attach-consumer-label":true,"forward-auth":true,"opa":true,"authz-keycloak":true,"proxy-cache":true,"body-transformer":true,"ai-prompt-template":true,"ai-prompt-decorator":true,"proxy-mirror":true,"proxy-rewrite":true,"workflow":true,"api-breaker":true,"ai-proxy":true,"limit-conn":true,"limit-count":true,"limit-req":true,"gzip":true,"server-info":true,"traffic-split":true,"cas-auth":true,"degraphql":true,"kafka-proxy":true,"gr pc-transcode":true,"real-ip":true,"ai":true,"client-control":true,"proxy-control":true,"request-id":true,"zipkin":true,"elasticsearch-logger":true,"echo":true,"loggly":true,"http-logger":true,"splunk-hec-logging":true,"skywalking-logger":true,"google-cloud-logging":true,"sls-logger":true,"tcp-logger":true,"kafka-logger":true,"rocketmq-logger":true,"syslog":true,"udp-logger":true,"file-logger":true,"clickhouse-logger":true,"tencent-cloud-cls":true,"inspect":true,"example-plugin":true,"aws-lambda":true,"azure-functions":true,"openwhisk":true,"openfunction":true,"serverless-post-function":true,"ext-plugin-post-req":true,"ext-plugin-post-resp":true,"redirect":true,"response-rewrite":true,"grpc-web":true,"http-dubbo":true,"public-api":true,"prometheus":true,"datadog":true,"loki-logger":true}, context: init_worker_by_lua* ### Steps to Reproduce 1) Create an EKS Cluster with [IPV6 support](https://docs.aws.amazon.com/eks/latest/best-practices/ipv6.html) 2) Install apisix through the [Helm chart](https://github.com/apache/apisix-helm-chart) ## Values.yml (for testing purposes) ```yaml autoscaling: enabled: true minReplicas: 1 maxReplicas: 10 targetCPUUtilizationPercentage: 80 targetMemoryUtilizationPercentage: 80 service: type: LoadBalancer externalTrafficPolicy: Cluster annotations: service.beta.kubernetes.io/aws-load-balancer-type: nlb metrics: serviceMonitor: enabled: false apisix: enableIPv6: true ssl: enabled: false admin: allow: ipList: - "0.0.0.0/0" etcd: enabled: true nodeSelector: purpose: "infra" dashboard: enabled: false ingress-controller: enabled: true podAnnotations: nodeSelector: purpose: "infra" config: apisix: adminAPIVersion: v3 serviceNamespace: apisix-system ``` ### Environment - APISIX version (run `apisix version`): 3.11.0 (Helm chart: 2.10.0) - Operating system (run `uname -a`): bottlerocket - OpenResty / Nginx version (run `openresty -V` or `nginx -V`): None - etcd version, if relevant (run `curl http://127.0.0.1:9090/v1/server_info`): 3.5.10 (Helm Chart: 9.7.3) - APISIX Dashboard version, if relevant: None - Plugin runner version, for issues related to plugin runners: None - LuaRocks version, for installation issues (run `luarocks --version`): None -- This is an automated message from the Apache Git Service. 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