Support Cluster-level Logging with FEK for Magnum

Enable k8s logging with Fluentd, Elasticsearch and Kibana https://kubernetes.io/docs/concepts/cluster-administration/logging/ https://github.com/kubernetes/kubernetes/tree/master/cluster/addons/fluentd-elasticsearch

Support Keystone authentication for k8s for Magnum

K8s already supports Keystone authenication [1]. Magnum should have an option to configure the k8s bay for using Keystone. As an initial step, I would suggest to add support for this option via labels. For example, '--labels k8s-authentication=keystone'. Later, if swarm and mesos supports Keystone as well, we might ...

Support claim and delete messages for Zaqar-ui

As a user, I'd like to claim and delete messages on queues panel.

Quota Support for zaqar

Add basic support for per-tenant quotas on number of queues and number of messages per queue. Need to make enforcement very fast. Default values should be very reasonable (100,000 queues, 10 million messages/queue?) https://trello.com/c/w1msvGcd

Support update subscription for Zaqar-ui

As a user, I would like to be able to update a subscription.