Logging stack failing with PKey error

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Environment

Rancher-logging is installed and configured with Kafka as an output

Situation

A Clusterflow and an Outpuut or ClusterOutput for rancher-logging are configured to send logs to a Kafka server, fluentd is failing with the following error:

[error]: fluent/log.rb:372:error: unexpected error error_class=OpenSSL::PKey::PKeyError error="Could not parse PKey: no start line"

Resolution

If you don't have client authentication enabled, the root CA is sufficient to connect to Kafka brokers. Removing invalid values and missing keys should resolve the issue

    ssl_ca_cert:
      mountFrom:
        secretKeyRef:
          key: tls.crt
          name: root-ca

Cause

Invalid client certificate/key is configured on the Output or ClusterOutput for Kafka, while the client certificate secret name is kept blank

    ssl_ca_cert:
      mountFrom:
        secretKeyRef:
          key: tls.crt
          name: root-ca
    ssl_client_cert:
      mountFrom:
        secretKeyRef:
          key: tls.crt
          name: certs
    ssl_client_cert_chain:
      mountFrom:
        secretKeyRef:
          key: ''
    ssl_client_cert_key:
      mountFrom:
        secretKeyRef:
          key: tls.key
          name: certs

Status

Top Issue

Additional Information

Logging outputs
Kafka plugin configuration

Disclaimer

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