ML Metadata Operator

Overview

This charm encompasses the Kubernetes Python operator for ML Metadata (see CharmHub).

The ML Metadata operator is a Python script that wraps the latest released version of ML Metadata, providing lifecycle management and handling events such as install, upgrade, integrate, and remove.

Install

To install ML Metadata, run:

juju deploy mlmd

For more information, see https://juju.is/docs

Upgrade

This action can be performed with:

juju refresh mlmd --channel <desired-channel>

Upgrading from mlmd<=1.14/stable

WARNING: to correctly perform this migration, you must backup your data first.

1. Remove the relation with requirer charms (e.g. envoy and kfp-metadata-writer)

juju remove-relation envoy mlmd
juju remove-relation kfp-metadata-writer mlmd

2. Remove the mlmd application.

WARNING: this will wipe out the storage attached to the mlmd charm, therefore, the database that this charm handles. It is important you perform a data backup before running this step.

juju remove-application mlmd --destroy-storage

3. Deploy mlmd from a newer channel

juju deploy mlmd --channel <channel-greater-than-1.14/stable> --trust

4. Restore your data.

5. Relate to the requirer charms

NOTE: mlmd>1.14/stable can only be related to envoy>2.0/stable and kfp-metadata-writer>2.0/stable

juju relate envoy mlmd
juju relate kfp-metadata-writer mlmd