17.11

Summary

The 17.11 OpenStack Charm release includes updates for the following charms:

  • aodh
  • barbican
  • ceilometer
  • ceilometer-agent
  • ceph
  • ceph-fs
  • ceph-mon
  • ceph-osd
  • ceph-radosgw
  • cinder
  • cinder-backup
  • cinder-ceph
  • designate
  • designate-bind
  • glance
  • gnocchi
  • hacluster
  • heat
  • keystone
  • keystone-ldap
  • lxd
  • manila
  • manila-generic
  • neutron-api
  • neutron-api-odl
  • neutron-openvswitch
  • neutron-gateway
  • nova-cloud-controller
  • nova-compute
  • odl-controller
  • openstack-dashboard
  • openvswitch-odl
  • percona-cluster
  • rabbitmq-server
  • swift-proxy
  • swift-storage

New Charm Features

QoS Feature

The Neutron QoS extension driver can now be enabled by setting the ‘enable-qos’ configuration option in the neutron-api charm. Once this is set neutron rate limiting qos policies can be created and applied to both ports and networks.

Gnocchi Support

The OpenStack charms now support deployment of Gnocchi for storage of resources, metrics and associated measures generated by Ceilometer from an OpenStack Cloud.

This is the first GA/stable release of the Gnocchi charm, following the preview release at 17.08. The charm provides support for use with Ceph for measure storage, with MySQL providing the supporting database infrastructure.

The gnocchi charm has been officially released and can be deployed via the official charm namespace in the charm store:

juju deploy cs:gnocchi
juju deploy cs:memcached
juju add-relation gnocchi ceph-mon
juju add-relation gnocchi ceilometer
juju add-relation gnocchi mysql
juju add-relation gnocchi keystone
juju add-relation gnocchi memcached

Note

The Ceilometer API will be automatically disabled as soon as Ceilometer is configured to store cloud telemetry data in Gnocchi.

Note

The Gnocchi charm only supports deployment of Gnocchi with OpenStack Ocata or later.

Designate Memcache Backend (Required)

The designate charm now supports and requires a memcached back-end. If upgrading the charms on a previous deployment, the designate unit(s) will go into a blocked state until the coordinator-memcached requirement is fulfilled.

The existing applications will continue to function, but until memcached is deployed and related to designate, the Juju model state will be blocked.

juju deploy memcached
juju add-relation designate memcached

https://bugs.launchpad.net/charm-designate/+bug/1733641

Python 3-Only Run-Time

There is a continued effort to bring the charms into a Py3-only run-time. This effort is intended to be completed for the next stable charms release (18.02). No user or config changes are necessary for charm upgrades or new deployments.

Reactive charms which are now py3-only:

  • barbican
  • barbican-softhsm
  • manila
  • manila-generic
  • designate
  • designate-bind
  • keystone-ldap
  • openvswitch-odl
  • tempest

Classic charms which are now py3-only:

  • ceph-mon
  • ceph-osd
  • heat
  • neutron-api
  • neutron-gateway
  • neutron-openvswitch
  • nova-compute

Classic charms which are still using py2 at run-time:

  • swift-proxy
  • keystone
  • ceilometer
  • glance
  • cinder
  • nova-cloud-controller

Libraries with py2/py3 support:

  • charm-helpers
  • charms.ceph

Libraries with py3 only support:

  • charms.openstack

Upgrading charms

Please ensure that the keystone charm is upgraded first.

To upgrade an existing deployment to the latest charm version simply use the ‘upgrade-charm’ command:

juju upgrade-charm keystone

New Bundle Features

Ceph Base Bundles

A development ceph-base bundle was published as preview at 17.08. It is now validated with x86_64 (amd64), aarch64 (arm64), and ppc64el (Power8), and a stable ceph-base bundle is published to the charm store with the 17.11 release.

The bundle provides an example for deploying a stand-alone Ceph Luminous cluster on Ubuntu 16.04 LTS.

Deprecation Notices

The legacy “ceph” charm is deprecated and will not receive updates past February 2018 (18.02). At this time, all deployments should be using the ceph-osd + ceph-mon deployment method.

Queens is the final supported OpenStack release for this charm.

Artful is the final supported Ubuntu release for this charm.

Xenial is the final supported Ubuntu LTS release for this charm.

There will not be a Bionic series legacy ceph charm developed or released.

Existing users of the legacy ceph charm should refer to Appendix A of the Charm Deployment Guide for details of how to migration existing deployments to the preferred ceph-mon and ceph-osd charms.

https://docs.openstack.org/project-deploy-guide/charm-deployment-guide/latest/

ZeroMQ messaging support across the charms will be removed during the Queens development cycle.

PostgreSQL database support across the charms will be removed during the Queens developement cycle.

Deploy from Source (DFS) support is under review for sustainability and may be removed during the Queens development cycle.

Known Issues

hacluster scale-out

By default, the hacluster charm will assume a cluster size of three units; in order to scale a three unit clustered application out, you must increase the cluster-count configuration option to the target size prior to adding the additional units to the clustered application.

https://bugs.launchpad.net/charm-hacluster/+bug/1424048

volume attachment on aarch64

There is an outstanding issue which causes volume scsi hot plug to not work as expected on arm64. If the guest instance is restarted after the cinder volume is attached, the volume attachment succeeds.

https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1664737

Bugs Fixed

For the full list of bugs resolved for the 17.11 release please refer to https://launchpad.net/openstack-charms/+milestone/17.11