magnum/doc/source/user/rolling-upgrade.rst

Rolling upgrade is one of most important features user want to see for a managed Kubernetes service. And in Magnum, we're thinking more deeper to provide better user experience.

#!/bin/bash -x

IP="192.168.122.1"
CLUSTER="797b39e1-fac2-48d3-8377-d6e6cc443d39"
CT="e32c8cf7-394b-45e6-a17e-4fe6a30ad64b"

# Upgrade curl
req_body=$(cat << EOF
{
    "max_batch_size": 1,
    "nodegroup": "master",
    "cluster_template": "${CT}"
}
EOF
)
USER_TOKEN=$(openstack token issue -c id -f value)
curl -g -i -X PATCH https://${IP}:9511/v1/clusters/${CLUSTER}/actions/upgrade \
-H "OpenStack-API-Version: container-infra latest" \
-H "X-Auth-Token: $USER_TOKEN" \
-H "Content-Type: application/json" \
-H "Accept: application/json" \
-H "User-Agent: None" \
-d "$req_body"