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Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.

Open source

Loki Configuration Examples

almost-zero-dependency.yaml

yaml
# This is a configuration to deploy Loki depending only on a storage solution 
# for example, an S3-compatible API like MinIO. 
# The ring configuration is based on the gossip memberlist and the index is shipped to storage 
# via Single Store (boltdb-shipper)

auth_enabled: false

server:
  http_listen_port: 3100

distributor:
  ring:
    kvstore:
      store: memberlist

ingester:
  lifecycler:
    ring:
      kvstore:
        store: memberlist
      replication_factor: 1
    final_sleep: 0s
  chunk_idle_period: 5m
  chunk_retain_period: 30s

memberlist:
  abort_if_cluster_join_fails: false

  # Expose this port on all distributor, ingester
  # and querier replicas.
  bind_port: 7946

  # You can use a headless k8s service for all distributor,
  # ingester and querier components.
  join_members:
  - loki-gossip-ring.loki.svc.cluster.local:7946

  max_join_backoff: 1m
  max_join_retries: 10
  min_join_backoff: 1s

schema_config:
  configs:
  - from: 2020-05-15
    store: boltdb-shipper
    object_store: s3
    schema: v11
    index:
      prefix: index_
      period: 24h

storage_config:
 boltdb_shipper:
   active_index_directory: /loki/index
   cache_location: /loki/index_cache
   shared_store: s3

 aws:
   s3: s3://access_key:secret_access_key@custom_endpoint/bucket_name
   s3forcepathstyle: true

limits_config:
  enforce_metric_name: false
  reject_old_samples: true
  reject_old_samples_max_age: 168h

compactor:
  working_directory: /data/compactor
  shared_store: s3
  compaction_interval: 5m

aws-basic-config-no-creds.yaml

yaml
# If you don't wish to hard-code S3 credentials you can also configure an EC2
# instance role by changing the `storage_config` section

schema_config:
  configs:
  - from: 2020-05-15
    store: aws
    object_store: s3
    schema: v11
    index:
      prefix: loki_
storage_config:
  aws:
    s3: s3://region/bucket_name
    dynamodb:
      dynamodb_url: dynamodb://region
      

aws-basic-config.yaml

yaml
# This partial configuration uses S3 for chunk storage and uses DynamoDB for index storage

schema_config:
  configs:
  - from: 2020-05-15
    store: aws
    object_store: s3
    schema: v11
    index:
      prefix: loki_
storage_config:
  aws:
    s3: s3://access_key:secret_access_key@region/bucket_name
    dynamodb:
      dynamodb_url: dynamodb://access_key:secret_access_key@region
      

cassandra-index.yaml

yaml
# This is a partial config that uses the local filesystem for chunk storage and Cassandra for index storage

schema_config:
  configs:
  - from: 2020-05-15
    store: cassandra
    object_store: filesystem
    schema: v11
    index:
      prefix: cassandra_table
      period: 168h

storage_config:
  cassandra:
    username: cassandra
    password: cassandra
    addresses: 127.0.0.1
    auth: true
    keyspace: lokiindex

  filesystem:
    directory: /tmp/loki/chunks
    

complete-local-config.yaml

yaml
auth_enabled: false

server:
  http_listen_port: 3100

ingester:
  lifecycler:
    address: 127.0.0.1
    ring:
      kvstore:
        store: inmemory
      replication_factor: 1
    final_sleep: 0s
  chunk_idle_period: 5m
  chunk_retain_period: 30s

schema_config:
  configs:
  - from: 2020-05-15
    store: boltdb
    object_store: filesystem
    schema: v11
    index:
      prefix: index_
      period: 168h

storage_config:
  boltdb:
    directory: /tmp/loki/index

  filesystem:
    directory: /tmp/loki/chunks

limits_config:
  enforce_metric_name: false
  reject_old_samples: true
  reject_old_samples_max_age: 168h

example-schema-config.yaml

yaml
# Additional example schema configuration for Cassandra

schema_config:
  configs:
    # Starting from 2018-04-15 Loki should store indexes on Cassandra
    # using weekly periodic tables and chunks on filesystem.
    # The index tables will be prefixed with "index_".
  - from: "2018-04-15"
    store: cassandra
    object_store: filesystem
    schema: v11
    index:
        period: 168h
        prefix: index_

  # Starting from 2020-6-15 we moved from filesystem to AWS S3 for storing the chunks.
  - from: "2020-06-15"
    store: cassandra
    object_store: s3
    schema: v11
    index:
        period: 168h
        prefix: index_
        

google-cloud-storage-config.yaml

yaml
# This partial configuration uses GCS for chunk storage and uses BigTable for index storage

schema_config:
  configs:
  - from: 2020-05-15
    store: bigtable
    object_store: gcs
    schema: v11
    index:
      prefix: loki_index_
      period: 168h

storage_config:
  bigtable:
    instance: BIGTABLE_INSTANCE
    project: BIGTABLE_PROJECT
  gcs:
    bucket_name: GCS_BUCKET_NAME
    

s3-compatible-apis.yaml

yaml
# S3-compatible APIs such as Ceph Object Storage with an S3-compatible API, can be used.
# If the API supports path-style URLs rather than virtual hosted bucket addressing,
# configure the URL in `storage_config` with the custom endpoint

schema_config:
  configs:
  - from: 2020-05-15
    store: aws
    object_store: s3
    schema: v11
    index:
      prefix: loki_
storage_config:
  aws:
    s3: s3://access_key:secret_access_key@region/bucket_name
    dynamodb:
      dynamodb_url: dynamodb://access_key:secret_access_key@region
      

s3-expanded-config.yaml

yaml
# S3 configuration supports an expanded configuration. 
# Either an `s3` endpoint URL can be used, or an expanded configuration can be used.

schema_config:
  configs:
  - from: 2020-05-15
    store: aws
    object_store: s3
    schema: v11
    index:
      prefix: loki_
storage_config:
  aws:
    bucketnames: bucket_name1, bucket_name2
    endpoint: s3.endpoint.com
    region: s3_region
    access_key_id: s3_access_key_id
    secret_access_key: s3_secret_access_key
    insecure: false
    sse_encryption: false
    http_config:
      idle_conn_timeout: 90s
      response_header_timeout: 0s
      insecure_skip_verify: false
    s3forcepathstyle: true