vector k8s deployment from chart with error Configuration error. error=invalid type: sequence, expected a string

[psychonaut]

I am trying to deploy vector on k8s from vector chart and I am struggling with error:

Configuration error. error=invalid type: sequence, expected a string
in `sources.kafka-source`
 internal_log_rate_limit=false

so I copied configuration from container and I am running this config locally with the same error:

api:
  address: 0.0.0.0:8686
  enabled: true
schema:
  log_namespace: true
sinks:
  prometheus-exporter:
    address: 0.0.0.0:9090
    inputs:
    - internal-metrics
    type: prometheus_exporter
  stdout:
    type: console
    inputs: [kafka-source]
    encoding:
      codec: json

sources:
  internal-metrics:
    scrape_interval_secs: 30
    type: internal_metrics
  kafka-source:
    auto_offset_reset: smallest
    bootstrap_servers:
    - kafka01:9092
    - kafka02:9092
    - kafka03:9092
    decoding:
      codec: json
    group_id: vector-uscentral1
    librdkafka_options:
      queued.min.messages: 2000
    topics:
    - auditbeat
    type: kafka

this is result:

vector --verbose --config ./test.yaml
2026-01-21T13:54:15.303057Z DEBUG vector::app: Internal log rate limit configured. internal_log_rate_secs=10
2026-01-21T13:54:15.303086Z  INFO vector::app: Log level is enabled. level="debug"
2026-01-21T13:54:15.303132Z DEBUG vector::app: Building runtime. worker_threads=16
2026-01-21T13:54:15.304482Z  INFO vector::app: Loading configs. paths=["test.yaml"]
2026-01-21T13:54:15.305532Z DEBUG vector::config::loading::secret: No secret placeholder found, skipping secret resolution.
2026-01-21T13:54:15.305839Z ERROR vector::cli: Configuration error. error=invalid type: sequence, expected a string



in `sources.kafka-source`
 internal_log_rate_limit=false

Any hints? What's wrong with this config?

$ vector --version
vector 0.52.0 (x86_64-unknown-linux-gnu ca5bf26 2025-12-16 14:56:07.290167996)

[psychonaut]

ok, find out, bootstrap_servers should be string. I just focused on this internal_log_rate_limit=false thing and couldn't find initially what was wrong.

[psychonaut]

Maybe fix this misleading info?