PostgreSQL (dagster_postgres)¶

class dagster_postgres.PostgresEventLogStorage(postgres_url, inst_data=None)[source]¶

Postgres-backed event log storage.

Users should not directly instantiate this class; it is instantiated by internal machinery when dagit and dagster-graphql load, based on the values in the dagster.yaml file in $DAGSTER_HOME. Configuration of this class should be done by setting values in that file.

To use Postgres for event log storage, you can add a block such as the following to your dagster.yaml:

dagster.yaml¶

event_log_storage:
  module: dagster_postgres.event_log
  class: PostgresEventLogStorage
  config:
    postgres_db:
      username: { username }
      password: { password }
      hostname: { hostname }
      db_name: { db_name }
      port: { port }

Note that the fields in this config are StringSource and IntSource and can be configured from environment variables.

class dagster_postgres.PostgresRunStorage(postgres_url, inst_data=None)[source]¶

Postgres-backed run storage.

Users should not directly instantiate this class; it is instantiated by internal machinery when dagit and dagster-graphql load, based on the values in the dagster.yaml file in $DAGSTER_HOME. Configuration of this class should be done by setting values in that file.

To use Postgres for run storage, you can add a block such as the following to your dagster.yaml:

dagster.yaml¶

run_storage:
  module: dagster_postgres.run_storage
  class: PostgresRunStorage
  config:
    postgres_db:
      username: { username }
      password: { password }
      hostname: { hostname }
      db_name: { database }
      port: { port }

Note that the fields in this config are StringSource and IntSource and can be configured from environment variables.

class dagster_postgres.PostgresScheduleStorage(postgres_url, inst_data=None)[source]¶

Postgres-backed run storage.

Users should not directly instantiate this class; it is instantiated by internal machinery when dagit and dagster-graphql load, based on the values in the dagster.yaml file in $DAGSTER_HOME. Configuration of this class should be done by setting values in that file.

To use Postgres for schedule storage, you can add a block such as the following to your dagster.yaml:

dagster.yaml¶

schedule_storage:
  module: dagster_postgres.schedule_storage
  class: PostgresScheduleStorage
  config:
    postgres_db:
      username: { username }
      password: { password }
      hostname: { hostname }
      db_name: { db_name }
      port: { port }

Note that the fields in this config are StringSource and IntSource and can be configured from environment variables.