Migrating Kubernetes CNI from Weave to Cilium

This section describes how to migrate your Kubernetes CNI from Weave to Cilium during a CSM upgrade.

Steps

  1. Run the migration script:

    /usr/share/doc/csm/scripts/cilium_migration.sh

    This script will:

    • Create and execute the migration workflow in the argo namespace.
    • Migrate the CNI from Weave to Cilium.
    • Continuously monitor the workflow status using kubectl.

  2. Monitor the migration workflow:

    The workflow status can also be tracked using the Argo CLI:

    argo watch <workflow-name> -n argo

    Replace <workflow-name> with the actual name of the workflow created by the cilium_migration.sh script.