[etcd error log] tls: first record does not look like a TLS handshake

[huweihuang]

I create a new etcd cluster by etcdadm, but the three etcd nodes output the following error logs.
How to solve this problem？

etcd[402254]: {"level":"warn","ts":"2022-08-31T14:17:50.484+0800","caller":"embed/config_logging.go:169","msg":"rejected connection","remote-addr":"xxxxx:42176","server-name":"","error":"tls: first record does not look like a TLS handshake"}

[cheese]

A client from xxxxx:42176 try to access etcd via non-tls connection, for example the HTTP restful gRPC gateway, but etcd is configured to allow only tls access.

[huweihuang]

A client from xxxxx:42176 try to access etcd via non-tls connection, for example the HTTP restful gRPC gateway, but etcd is configured to allow only tls access.

how to fix it?

[k8s-triage-robot]

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/lifecycle stale

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/lifecycle rotten

[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

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• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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/close not-planned

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Reopen this issue with /reopen
• Mark this issue as fresh with /remove-lifecycle rotten
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/close not-planned

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