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Configuration Reference

Table of contents

  1. Reference
  2. Using Environment Variables
  3. Example: Local Development
  4. Example: AWS Deployment
  5. Example: Google Storage

Configuring lakeFS is done using a yaml configuration file. This reference uses . to denote the nesting of values.

Reference

  • logging.format (one of ["json", "text"] : "text") - Format to output log message in
  • logging.level (one of ["DEBUG", "INFO", "WARN", "ERROR", "NONE"] : "DEBUG") - Logging level to output
  • logging.output (string : "-") - Path name to write logs to. "-" means Standard Output
  • database.connection_string (string : "postgres://localhost:5432/postgres?sslmode=disable") - PostgreSQL connection string to use
  • database.max_open_connections (int : 25) - Maximum number of open connections to the database
  • database.max_idle_connections (int : 25) - Sets the maximum number of connections in the idle connection pool
  • database.connection_max_lifetime (duration : 5m) - Sets the maximum amount of time a connection may be reused
  • database.disable_auto_migrate (bool : false) - Disable the database migrate to latest on connect
  • listen_address (string : "0.0.0.0:8000") - A <host>:<port> structured string representing the address to listen on
  • auth.cache.enabled (bool : true) - Whether to cache access credentials and user policies in-memory. Can greatly improve throughput when enabled.
  • auth.cache.size (int : 1024) - How many items to store in the auth cache. Systems with a very high user count should use a larger value at the expense of ~1kb of memory per cached user.
  • auth.cache.ttl (time duration : "20s") - How long to store an item in the auth cache. Using a higher value reduces load on the database, but will cause changes longer to take effect for cached users.
  • auth.cache.jitter (time duration : "3s") - A random amount of time between 0 and this value is added to each item’s TTL. This is done to avoid a large bulk of keys expiring at once and overwhelming the database.

  • auth.encrypt.secret_key (string : required) - A random (cryptographically safe) generated string that is used for encryption and HMAC signing

    Note: It is best to keep this somewhere safe such as KMS or Hashicorp Vault, and provide it to the system at run time

  • blockstore.type (one of ["local", "s3", "gs", "mem"]: "mem") - Block adapter to use. This controls where the underlying data will be stored
  • blockstore.local.path (string: "~/lakefs/data") - When using the local Block Adapter, which directory to store files in
  • blockstore.gs.credentials_file (string : ) - If specified will be used as a file path of the JSON file that contains your Google service account key
  • blockstore.gs.credentials_json (string : ) - If specified will be used as JSON string that contains your Google service account key (when credentials_file is not set)
  • blockstore.s3.region (string : "us-east-1") - When using the S3 block adapter, AWS region to use
  • blockstore.s3.profile (string : ) - If specified, will be used as a named credentials profile
  • blockstore.s3.credentials_file (string : ) - If specified, will be used as a credentials file
  • blockstore.s3.credentials.access_key_id (string : ) - If specified, will be used as a static set of credential
  • blockstore.s3.credentials.access_secret_key (string : ) - If specified, will be used as a static set of credential
  • blockstore.s3.credentials.session_token (string : ) - If specified, will be used as a static session token
  • blockstore.s3.streaming_chunk_size (int : 1048576) - Object chunk size to buffer before streaming to S3 (use a lower value for less reliable networks). Minimum is 8192.
  • blockstore.s3.retention.role_arn - ARN of IAM role to use to perform AWS S3 Batch tagging operations. This role must be configured according to Granting permissions for Amazon S3 Batch Operations for “PUT object tagging”, with these permissions:
    • ListBucket on all buckets used for storing repositories.
    • PutObjectTagging and PutObjectVersionTagging on all buckets and prefixes used for storing repositories.
    • GetObject under blockstore.s3.retention.manifest_base_url,
    • PutObject under blockstore.s3.retention.report_s3_prefix_url.
  • blockstore.s3.retention.manifest_base_url - Base S3 URL to use for uploading batch tagging manifest files. Must be readable by blockstore.s3.retention.role_arn and writable by the configured AWS role running lakefs.
  • blockstore.s3.retention.report_s3_prefix_url - Base S3 URL to use for writing batch tagging completion reports. Must be writable by blockstore.s3.retention.role_arn.
  • gateways.s3.domain_name (string : "s3.local.lakefs.io") - a FQDN representing the S3 endpoint used by S3 clients to call this server (*.s3.local.lakefs.io always resolves to 127.0.0.1, useful for local development
  • gateways.s3.region (string : "us-east-1") - AWS region we’re pretending to be. Should match the region configuration used in AWS SDK clients
  • stats.enabled (boolean : true) - Whether or not to periodically collect anonymous usage statistics

Using Environment Variables

All configuration variables can be set or overridden using environment variables. To set an environment variable, prepend LAKEFS_ to its name, convert it to upper case, and replace . with _:

For example, logging.format becomes LAKEFS_LOGGING_FORMAT, blockstore.s3.region becomes LAKEFS_BLOCKSTORE_S3_REGION, etc.

Example: Local Development 

---
listen_address: "0.0.0.0:8000"

database:
  connection_string: "postgres://localhost:5432/postgres?sslmode=disable"

logging:
  format: text
  level: DEBUG
  output: "-"

auth:
  encrypt:
    secret_key: "10a718b3f285d89c36e9864494cdd1507f3bc85b342df24736ea81f9a1134bcc09e90b6641"

blockstore:
  type: local
  local:
    path: "~/lakefs/dev/data"

gateways:
  s3:
    domain_name: s3.local.lakefs.io
    region: us-east-1

Example: AWS Deployment 

---
logging:
  format: json
  level: WARN
  output: "-"

database:
  connection_string: "postgres://user:pass@lakefs.rds.amazonaws.com:5432/postgres"

auth:
  encrypt:
    secret_key: "10a718b3f285d89c36e9864494cdd1507f3bc85b342df24736ea81f9a1134bcc"

blockstore:
  type: s3
  s3:
    region: us-east-1
    credentials_file: /secrets/aws/credentials
    profile: default

gateways:
  s3:
    domain_name: s3.my-company.com
    region: us-east-1

Example: Google Storage 

---
logging:
  format: json
  level: WARN
  output: "-"

database:
  connection_string: "postgres://user:pass@lakefs.rds.amazonaws.com:5432/postgres"

auth:
  encrypt:
    secret_key: "10a718b3f285d89c36e9864494cdd1507f3bc85b342df24736ea81f9a1134bcc"

blockstore:
  type: gs
  gs:
    credentials_file: /secrets/lakefs-service-account.json

gateways:
  s3:
    domain_name: s3.my-company.com
    region: us-east-1