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.

Documentation

Open source

Configuration

1-Local-Configuration-Example.yaml


# This is a complete configuration to deploy Loki backed by the filesystem.
# The index will be shipped to the storage via tsdb-shipper.

auth_enabled: false

server:
  http_listen_port: 3100

common:
  ring:
    instance_addr: 127.0.0.1
    kvstore:
      store: inmemory
  replication_factor: 1
  path_prefix: /tmp/loki

schema_config:
  configs:
  - from: 2020-05-15
    store: tsdb
    object_store: filesystem
    schema: v13
    index:
      prefix: index_
      period: 24h

storage_config:
  filesystem:
    directory: /tmp/loki/chunks

2-S3-Cluster-Example.yaml


# This is a complete configuration to deploy Loki backed by a s3-compatible API
# like MinIO for storage.
# Index files will be written locally at /loki/index and, eventually, will be shipped to the storage via tsdb-shipper.

auth_enabled: false

server:
  http_listen_port: 3100

common:
  ring:
    instance_addr: 127.0.0.1
    kvstore:
      store: inmemory
  replication_factor: 1
  path_prefix: /loki

schema_config:
  configs:
  - from: 2020-05-15
    store: tsdb
    object_store: s3
    schema: v13
    index:
      prefix: index_
      period: 24h

storage_config:
 tsdb_shipper:
   active_index_directory: /loki/index
   cache_location: /loki/index_cache
 aws:
   s3: s3://access_key:secret_access_key@custom_endpoint/bucket_name
   s3forcepathstyle: true

3-S3-Without-Credentials-Snippet.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.

storage_config:
  aws:
    s3: s3://region/bucket_name

4-GCS-Example.yaml


# This is a complete configuration to deploy Loki backed by a GCS.
# Index files will be written locally at /loki/index and, eventually, will be shipped to the storage via tsdb-shipper.

auth_enabled: false

server:
  http_listen_port: 3100

common:
  ring:
    instance_addr: 127.0.0.1
    kvstore:
      store: inmemory
  replication_factor: 1
  path_prefix: /loki

schema_config:
  configs:
  - from: 2020-05-15
    store: tsdb
    object_store: gcs
    schema: v13
    index:
      prefix: index_
      period: 24h

storage_config:
  tsdb_shipper:
    active_index_directory: /loki/index
    cache_location: /loki/index_cache
  gcs:
    bucket_name: replace_by_your_bucked_name

5-BOS-Example.yaml


# This is a partial configuration to deploy Loki backed by Baidu Object Storage (BOS).
# The index will be shipped to the storage via tsdb-shipper.
common:
  path_prefix: /tmp/loki

schema_config:
  configs:
    - from: 2020-05-15
      store: tsdb
      object_store: bos
      schema: v13
      index:
        prefix: index_
        period: 24h

storage_config:
  bos:
    bucket_name: bucket_name_1
    endpoint: bj.bcebos.com
    access_key_id: access_key_id
    secret_access_key: secret_access_key

6-Compactor-Snippet.yaml


# This partial configuration sets the compactor to use S3 and run the compaction every 5 minutes.
# Downloaded index files for compaction are stored in /loki/compactor.

compactor:
  working_directory: /tmp/loki/compactor
  compaction_interval: 5m

7-Schema-Migration-Snippet.yaml


common:
  path_prefix: /tmp/loki

schema_config:
  configs:
    # Starting from 2018-04-15 Loki should store indexes on BoltDB with the v11 schema
    # using daily periodic tables and chunks on filesystem.
    # The index tables will be prefixed with "index_".
  - from: "2018-04-15"
    store: boltdb-shipper
    object_store: filesystem
    schema: v11
    index:
        period: 24h
        prefix: index_

  # Starting from 2023-6-15 Loki should store indexes on TSDB with the v13 schema
  # using daily periodic tables and chunks on AWS S3.
  - from: "2023-06-15"
    store: tsdb
    object_store: s3
    schema: v13
    index:
        period: 24h
        prefix: index_

8-alibaba-cloud-storage-Snippet.yaml


# This partial configuration uses Alibaba for chunk storage.
common:
  path_prefix: /tmp/loki

schema_config:
  configs:
  - from: 2020-05-15
    store: tsdb
    object_store: alibabacloud
    schema: v13
    index:
      prefix: index_
      period: 24h

storage_config:
  tsdb_shipper:
    active_index_directory: /loki/index
    cache_location: /loki/index_cache
  alibabacloud:
    bucket: <bucket>
    endpoint: <endpoint>
    access_key_id: <access_key_id>
    secret_access_key: <secret_access_key>

9-S3-With-SSE-KMS-Snippet.yaml


# This partial configuration uses S3 for chunk storage and a KMS CMK for encryption.

storage_config:
  aws:
    s3: s3://access_key:secret_access_key@region/bucket_name
    sse:
      type: SSE-KMS
      kms_key_id: 1234abcd-12ab-34cd-56ef-1234567890ab

10-Expanded-S3-Snippet.yaml


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

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
    http_config:
      idle_conn_timeout: 90s
      response_header_timeout: 0s
      insecure_skip_verify: false
    s3forcepathstyle: true

11-COS-HMAC-Example.yaml


# This partial configuration uses IBM Cloud Object Storage (COS) for chunk storage. HMAC will be used for authenticating with COS.
common:
  path_prefix: /tmp/loki

schema_config:
  configs:
    - from: 2020-10-01
      store: tsdb
      object_store: cos
      schema: v13
      index:
        period: 24h
        prefix: index_

storage_config:
  cos:
    bucketnames: <bucket1, bucket2>
    endpoint: <endpoint>
    region: <region>
    access_key_id: <access_key_id>
    secret_access_key: <secret_access_key>

12-COS-APIKey-Example.yaml


# This partial configuration uses IBM Cloud Object Storage (COS) for chunk storage. APIKey will be used for authenticating with COS.
common:
  path_prefix: /tmp/loki

schema_config:
  configs:
    - from: 2020-10-01
      store: tsdb
      object_store: cos
      schema: v13
      index:
        period: 24h
        prefix: index_

storage_config:
  cos:
    bucketnames: <bucket1, bucket2>
    endpoint: <endpoint>
    region: <region>
    api_key: <api_key_to_authenticate_with_cos>
    service_instance_id: <cos_service_instance_id>
    auth_endpoint: <iam_endpoint_for_authentication>

13-COS-Trusted-Profile-Example.yaml


# This partial configuration uses IBM Cloud Object Storage (COS) for chunk storage. 
# A trusted profile will be used for authenticating with COS. We can either pass
# the trusted profile name or trusted profile ID along with the compute resource token file.
# If we pass both trusted profile name and trusted profile ID it should be of 
# the same trusted profile.
# In order to use trusted profile authentication we need to follow an additional step to create a trusted profile.
# For more details about creating a trusted profile, see https://cloud.ibm.com/docs/account?topic=account-create-trusted-profile&interface=ui.
common:
  path_prefix: /tmp/loki

schema_config:
  configs:
    - from: 2020-10-01
      store: tsdb
      object_store: cos
      schema: v13
      index:
        period: 24h
        prefix: index_

storage_config:
  cos:
    bucketnames: <bucket1, bucket2>
    endpoint: <endpoint>
    region: <region>
    auth_endpoint: <iam_endpoint_for_authentication>
    cr_token_file_path: <path_to_compute_resource_token>
    trusted_profile_name: <name_of_the_trusted_profile> # You can also use trusted_profile_id instead of trusted_profile_name

15-Memberlist-Ring-Snippet.yaml


# This partial configuration uses memberlist for the ring.

common:
  ring:
    kvstore:
      store: memberlist
  replication_factor: 1
  path_prefix: /loki

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

16-Azure-Account-Name-Example.yaml


# This partial configuration uses Azure for chunk storage
storage_config:
  azure:
    # For the account-key, see docs: https://docs.microsoft.com/en-us/azure/storage/common/storage-account-keys-manage?tabs=azure-portal
    account_key: <azure_blob_access_key>
    account_name: <azure_account_name>
    container_name: <azure_storage_bucket_name>
    use_managed_identity: false
    # Providing a user assigned ID will override use_managed_identity
    #user_assigned_id: <user-assigned-identity-id>
    request_timeout: 0
    # Configure `endpoint_suffix` if you are using private azure cloud like azure stack hub and will use this endpoint suffix to compose container and blob storage URL. Ex: https://account_name.endpoint_suffix/container_name/blob_name
    #endpoint_suffix: <endpoint-suffix>
    # If `connection_string` is set, the `account_name` and `endpoint_suffix` values will not be used. Use this method over `account_key` if you need to authenticate via an SAS token. Or if you use the Azurite emulator.
    #connection_string: <connection-string>

17-Azure-Service-Principal-Example.yaml


# This partial configuration uses Azure for chunk storage and a service principal for authentication
storage_config:
  azure:
    use_service_principal: true
    # Azure tenant ID used to authenticate through Azure OAuth
    tenant_id: <tenant-id>
    # Azure Service Principal ID
    client_id: <client-id>
    # Azure Service Principal secret key
    client_secret: <client-secret>
    # See https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blobs-introduction#containers
    container_name: <azure_storage_bucket_name>
    request_timeout: 0