Description

OpenStack Compute, codenamed Nova, is a cloud computing fabric controller. In
addition to its "native" API (the OpenStack API), it also supports the Amazon
EC2 API.
.
This charm provides the Nova Compute hypervisor service and should be deployed
directly to physical servers.

Overview

This charm provides Nova Compute, the Openstack compute service. It's target
platform is Ubuntu (preferably LTS) + Openstack.

Usage

The following interfaces are provided:

  • cloud-compute - Used to relate (at least) with one or more of
    nova-cloud-controller, glance, ceph, cinder, mysql, ceilometer-agent,
    rabbitmq-server, neutron

  • nrpe-external-master - Used to generate Nagios checks.

Database

Nova compute only requires database access if using nova-network. If using
Neutron, no direct database access is required and the shared-db relation need
not be added.

Networking

This charm support nova-network (legacy) and Neutron networking.

Storage

This charm supports a number of different storage backends depending on
your hypervisor type and storage relations.

Deploying from source

The minimum openstack-origin-git config required to deploy from source is:

openstack-origin-git: include-file://nova-juno.yaml

nova-juno.yaml
    repositories:
    - {name: requirements,
       repository: 'git://github.com/openstack/requirements',
       branch: stable/juno}
    - {name: nova,
       repository: 'git://github.com/openstack/nova',
       branch: stable/juno}

Note that there are only two 'name' values the charm knows about: 'requirements'
and 'nova'. These repositories must correspond to these 'name' values.
Additionally, the requirements repository must be specified first and the
nova repository must be specified last. All other repostories are installed
in the order in which they are specified.

The following is a full list of current tip repos (may not be up-to-date):

openstack-origin-git: include-file://nova-master.yaml

nova-master.yaml
    repositories:
    - {name: requirements,
       repository: 'git://github.com/openstack/requirements',
       branch: master}
    - {name: oslo-concurrency,
       repository: 'git://github.com/openstack/oslo.concurrency',
       branch: master}
    - {name: oslo-config,
       repository: 'git://github.com/openstack/oslo.config',
       branch: master}
    - {name: oslo-context,
       repository: 'git://github.com/openstack/oslo.context',
       branch: master}
    - {name: oslo-db,
       repository: 'git://github.com/openstack/oslo.db',
       branch: master}
    - {name: oslo-i18n,
       repository: 'git://github.com/openstack/oslo.i18n',
       branch: master}
    - {name: oslo-log,
       repository: 'git://github.com/openstack/oslo.log',
       branch: master}
    - {name: oslo-messaging,
       repository: 'git://github.com/openstack/oslo.messaging',
       branch: master}
    - {name: oslo-middleware,
       repository': 'git://github.com/openstack/oslo.middleware',
       branch: master}
    - {name: oslo-rootwrap',
       repository: 'git://github.com/openstack/oslo.rootwrap',
       branch: master}
    - {name: oslo-serialization,
       repository: 'git://github.com/openstack/oslo.serialization',
       branch: master}
    - {name: oslo-utils,
       repository: 'git://github.com/openstack/oslo.utils',
       branch: master}
    - {name: pbr,
       repository: 'git://github.com/openstack-dev/pbr',
       branch: master}
    - {name: stevedore,
       repository: 'git://github.com/openstack/stevedore',
       branch: 'master'}
    - {name: sqlalchemy-migrate,
       repository: 'git://github.com/stackforge/sqlalchemy-migrate',
       branch: master}
    - {name: python-cinderclient,
       repository: 'git://github.com/openstack/python-cinderclient',
       branch: master}
    - {name: python-glanceclient,
       repository': 'git://github.com/openstack/python-glanceclient',
       branch: master}
    - {name: python-neutronlient,
       repository': 'git://github.com/openstack/python-neutronclient',
       branch: master}
    - {name: keystonemiddleware,
       repository: 'git://github.com/openstack/keystonemiddleware',
       branch: master}
    - {name: nova,
       repository: 'git://github.com/openstack/nova',
       branch: master}

Configuration

sysctl
(string) YAML formatted associative array of sysctl values, e.g.: '{ kernel.pid_max : 4194303 }'
os-data-network
(string) The IP address and netmask of the OpenStack Data network (e.g., 192.168.0.0/24) This network will be used for tenant network traffic in overlay networks.
bridge-interface
(string) Bridge interface to be configured
br100
cpu-mode
(string) Set to 'host-model' to clone the host CPU feature flags; to 'host-passthrough' to use the host CPU model exactly; to 'custom' to use a named CPU model; to 'none' to not set any CPU model. If virt_type='kvm|qemu', it will default to 'host-model', otherwise it will default to 'none'.
authorized-keys-path
(string) Only used when migration-auth-type is set to ssh. . Full path to authorized_keys file, can be useful for systems with non-default AuthorizedKeysFile location. It will be formatted using the following variables: . homedir - user's home directory username - username .
{homedir}/.ssh/authorized_keys
flat-interface
(string) Network interface on which to build bridge
eth1
nova-config
(string) Full path to Nova configuration file.
/etc/nova/nova.conf
virt-type
(string) Virtualization flavor. Supported flavors are: kvm, xen, uml, lxc, qemu, lxd.
kvm
openstack-origin-git
(string) Specifies a YAML-formatted dictionary listing the git repositories and branches from which to install OpenStack and its dependencies. . Note that the installed config files will be determined based on the OpenStack release of the openstack-origin option. . For more details see README.md.
use-syslog
(boolean) Setting this to True will allow supporting services to log to syslog.
bridge-netmask
(string) Netmask to be assigned to bridge interface
255.255.255.0
verbose
(boolean) Enable verbose logging.
neutron-database
(string) Database name for Neutron (if enabled).
neutron
libvirt-image-backend
(string) Tell Nova which libvirt image backend to use. Supported backends are rbd, lvm and qcow2. If no backend is specified, the Nova default (qcow2) is used. Note that rbd imagebackend is only supported with >= Juno.
disable-neutron-security-groups
(boolean) Disable neutron based security groups - setting this configuration option will override any settings configured via the nova-cloud-controller charm. . BE CAREFUL - this option allows you to disable all port level security within an OpenStack cloud.
rabbit-user
(string) Username used to access rabbitmq queue.
nova
bridge-ip
(string) IP to be assigned to bridge interface
11.0.0.1
disk-cachemodes
(string) Specific cachemodes to use for different disk types e.g: file=directsync,block=none
prefer-ipv6
(boolean) If True enables IPv6 support. The charm will expect network interfaces to be configured with an IPv6 address. If set to False (default) IPv4 is expected. NOTE: these charms do not currently support IPv6 privacy extension. In order for this charm to function correctly, the privacy extension must be disabled and a non-temporary address must be configured/available on your network interface.
nagios_servicegroups
(string) A comma-separated list of nagios servicegroups. If left empty, the nagios_context will be used as the servicegroup.
enable-resize
(boolean) Enable instance resizing, which requires that passwordless SSH access be setup between compute hosts.
enable-live-migration
(boolean) Configure libvirt for live migration.
action-managed-upgrade
(boolean) If True enables openstack upgrades for this charm via juju actions. You will still need to set openstack-origin to the new repository but instead of an upgrade running automatically across all units, it will wait for you to execute the openstack-upgrade action for this charm on each unit. If False it will revert to existing behavior of upgrading all units on config change.
openstack-origin
(string) Repository from which to install. May be one of the following: distro (default), ppa:somecustom/ppa, a deb url sources entry or a supported Ubuntu Cloud Archive (UCA) release pocket. . Supported UCA sources include: . cloud:<series>-<openstack-release> cloud:<series>-<openstack-release>/updates cloud:<series>-<openstack-release>/staging cloud:<series>-<openstack-release>/proposed . For series=Precise we support UCA for openstack-release= * icehouse . For series=Trusty we support UCA for openstack-release= * juno * kilo * ... . NOTE: updating this setting to a source that is known to provide a later version of OpenStack will trigger a software upgrade. . NOTE: when openstack-origin-git is specified, openstack specific packages will be installed from source rather than from the openstack-origin repository.
distro
multi-host
(string) Whether to run nova-api and nova-network on the compute nodes.
yes
manage-neutron-plugin-legacy-mode
(boolean) If True nova-compute will install neutron packages for the plugin stipulated by nova-cloud-controller. The option is only available for backward compatibility for deployments which do not use the neutron-api charm. Please do not enable this on new deployments.
True
migration-auth-type
(string) TCP authentication scheme for libvirt live migration. Available options include ssh.
ceph-osd-replication-count
(int) This value dictates the number of replicas ceph must make of any object it stores withing the nova rbd pool. Of course, this only applies if using Ceph as a backend store. Note that once the nova rbd pool has been created, changing this value will not have any effect (although it can be changed in ceph by manually configuring your ceph cluster).
3
neutron-database-user
(string) Username for Neutron database access (if enabled).
neutron
instances-path
(string) Path used for storing Nova instances data - empty means default of /var/lib/nova/instances.
database
(string) Nova database name.
nova
config-flags
(string) Comma-separated list of key=value config flags. These values will be placed in the nova.conf [DEFAULT] section.
rbd-client-cache
(string) Enable/disable rbd client cache. Leaving this value unset will result in default Ceph rbd client settings being used (rbd cache is enabled by default for Ceph >= Giant). Supported values here are "enabled" or "disabled".
nagios_context
(string) Used by the nrpe-external-master subordinate charm. A string that will be prepended to instance name to set the host name in nagios. So for instance the hostname would be something like: . juju-myservice-0 . If you're running multiple environments with the same services in them this allows you to differentiate between them.
juju
hugepages
(string) The pecentage of system memory to use for hugepages eg '10%' or the total number of 2M hugepages - eg "1024".
rbd-pool
(string) RBD pool to use with Nova libvirt RBDImageBackend. Only required when you have libvirt-image-backend set to 'rbd'.
nova
network-device-mtu
(int) The MTU size for the interfaces managed by neutron. If unset or set to 0, no mtu will be applied.
rabbit-vhost
(string) Rabbitmq vhost.
openstack
cpu-model
(string) Set to a named libvirt CPU model (see names listed in /usr/share/libvirt/cpu_map.xml). Only has effect if cpu_mode='custom' and virt_type='kvm|qemu'.
debug
(boolean) Enable debug logging.
database-user
(string) Username for database access.
nova