nova compute

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.


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.

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
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.conf
/etc/nova/nova.conf
virt-type
(string) Virtualization flavor. Supported: kvm, xen, uml, lxc. qemu
kvm
use-syslog
(boolean) By default, all services will log into their corresponding log files. Setting this to True will force all services to log to the syslog.
bridge-netmask
(string) Netmask to be assigned to bridge interface
255.255.255.0
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 and lvm. If no backend is specified, the Nova default is used (probably qcow2).
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 and 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.
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 Cloud Archive release pocket. Supported Cloud Archive sources include: cloud:precise-folsom, cloud:precise-folsom/updates, cloud:precise-folsom/staging, cloud:precise-folsom/proposed. Note that updating this setting to a source that is known to provide a later version of OpenStack will trigger a software upgrade.
distro
multi-host
(string) Whether to run nova-api and nova-network on the compute nodes.
yes
config-flags
(string) Comma separated list of key=value config flags to be set in nova.conf.
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) Instance path to use - empty means default of /var/lib/nova/instances
database
(string) Database name
nova
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
rbd-pool
(string) RBD pool to use with Nova RBD image backend. Required when libvirt_image_backend is rbd.
nova
rabbit-vhost
(string) Rabbitmq vhost
openstack
database-user
(string) Username for database access
nova