Grafana Loki Helm Chart - Where to define the AWS S3 bucket name in the values.yaml file

I tried defining the bucket name under:

https://github.com/grafana/loki/blob/67c0b3ed2c1574db85673b796080aa87517b07d7/production/helm/loki/values.yaml#L219
but its throwing invalid bucket name

  storage:
    bucketNames:
      chunks: chunks
      ruler: ruler
      admin: admin
    type: s3
    s3:
      s3: null
      endpoint: null
      region: null
      secretAccessKey: null
      accessKeyId: null
      s3ForcePathStyle: false
      insecure: false
      http_config: {}

I have created an S3 bucket and using the service account to provide access to the bucket.

Can some one help me with how you have used the S3 bucket using the new helm chart

tldr: define in the bucketNames.chunks field

You can search for the usage of the keywords in the helm-chart repo. For example, the bucketNames is used to populate the s3 bucket. See here.

You can pass the bucket details as below. Either you can use the single bucket for chunk, ruler and admin or you can use different buckets.

loki:
  storage:
    bucketNames:
      chunks: aws-bucket-name
      ruler: aws-bucket-name
      admin: aws-bucket-name
    type: s3
    s3:
      region: aws-region
  auth_enabled: false