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  1. OpenShift Logging
  2. LOG-2157

Vector: Getting error 'error=unknown field `username`' when forwarding logs to Loki using HTTPS

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    • Logging (Core) - Sprint 213

    Description

      When forwarding logs to Loki using HTTPS and Vector as collector, getting the following error in Collector pod logs. 

      Jan 24 04:59:41.215 ERROR vector::cli: Configuration error. error=unknown field `username`, expected `user` or `password` for key `sinks.loki_server` at line 71 column 1
      
      oc get pods
      NAME                                            READY   STATUS             RESTARTS      AGE
      cluster-logging-operator-784b7ff8d8-n78ls       1/1     Running            0             51m
      collector-84cql                                 1/2     CrashLoopBackOff   3 (19s ago)   63s
      collector-8vmc5                                 1/2     CrashLoopBackOff   3 (16s ago)   61s
      collector-brvpw                                 1/2     CrashLoopBackOff   3 (15s ago)   62s
      collector-pl5n9                                 1/2     CrashLoopBackOff   3 (23s ago)   62s
      collector-sw44q                                 1/2     Error              3 (41s ago)   63s
      collector-trq8r                                 1/2     Error              3 (40s ago)   62s
      elasticsearch-cdm-f7klylu7-1-587fbd4df5-msw59   2/2     Running            0             10m
      kibana-6ffcbd945d-l7bln                         2/2     Running            0             10m 

      Steps to reproduce the isue:

      1 Deploy Cluster Logging with Vector as Collector.

      2 Create a secret for Loki HTTPS.

      oc create secret generic loki-client -n openshift-logging --from-literal=user="USERNAME" --from-literal=password="API KEY" 

      3 Create a ClusterLogForwarder instance to forward logs to Loki.

      apiVersion: logging.openshift.io/v1
      kind: ClusterLogForwarder
      metadata:
        name: instance
        namespace: openshift-logging
      spec:
        outputs:
        - name: loki-server
          type: loki
          url: https://logs-prod3.grafana.net
          secret:
             name: loki-client
        pipelines:
          - name: to-loki
            inputRefs:
            - application
            outputRefs:
            - loki-server 

      4 Check the Collector pod are failing with error:

      oc logs collector-pl5n9 -c collector 
      Jan 24 05:04:47.486  INFO vector::app: Log level is enabled. level="debug"
      Jan 24 05:04:47.486  INFO vector::sources::host_metrics: PROCFS_ROOT is unset. Using default '/proc' for procfs root.
      Jan 24 05:04:47.486  INFO vector::sources::host_metrics: SYSFS_ROOT is unset. Using default '/sys' for sysfs root.
      Jan 24 05:04:47.487  INFO vector::app: Loading configs. path=[("/etc/vector/vector.toml", Some(Toml))]
      Jan 24 05:04:47.490 ERROR vector::cli: Configuration error. error=unknown field `username`, expected `user` or `password` for key `sinks.loki_server` at line 71 column 1
       

      If we try to use the field user in the secret the CLF status is invalid, if we use the username the CLF is valid but the collector pods throws the above configuration error. 

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            vimalkum@redhat.com Vimal Kumar
            rhn-support-ikanse Ishwar Kanse
            Ishwar Kanse Ishwar Kanse
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