System workers

When deploying or upgrading an Arkindex instance, you must ensure that the system workers which provide key Arkindex features are up to date. The Docker images corresponding to the worker versions for each Arkindex feature are set in the arkindex/system_workers.yml file.

Warning

Without these system workers and feature worker versions, an Arkindex instance cannot fully function.

The recommended way to manage features is to use the arkindex update_system_workers command, which will in most cases be able to automatically create or update all of the necessary worker versions and assign features, using a set of Docker images that our team recommends for a specific Arkindex release.

This command should be run on each Arkindex instance upgrade, so that all updates to these workers are reflected in your database.

Feature worker version can also be manually configured through the administration interface.

The following system checks relate to system workers:

• The W014 warning signals that the worker version for the init_elements feature is missing or unavailable.
• The W015 warning signals that the worker version for the s3_ingest feature is missing or unavailable.
• The E012 error prevents releasing a new version of Arkindex if the recommended Docker images used by the update_system_workers command have not been manually checked and approved for this release.