Zed Series Release Notes¶

18.0.0.0b1-226¶

Introduces 3 new variables cinder_default_availability_zone, octavia_cinder_volume_size and octavia_cinder_volume_type. using these variables, enables Octavia to use different Cinder configurations.

Octavia requires SSL certificates for communication with the amphora. This adds the automatic creation of self signed certificates for this purpose. It uses different certificate authorities for amphora and control plane thus insuring maximum security.

Octavia is creating vms, securitygroups, and other things in its project. In most cases the default quotas are not big enough. This will adjust them to (configurable) reasonable values.

Now you can set up octavia_management_net_subnet_gateway variable to create the management subnet with default gateway set. By default the subnet created without gateway.

The service setup in keystone for octavia will now be executed through delegation to the octavia_service_setup_host which, by default, is localhost (the deploy host). Deployers can opt to rather change this to the utility container by implementing the following override in user_variables.yml.
```
octavia_service_setup_host: "{{ groups['utility_all'][0] }}"
```

With adding zookeeper as coordination backend Octavia will be configured to use amphorav2 as default provider driver. This will result in creating a new database and jobboard configuration. You can control database name with variable octavia_galera_persistence_database and existing octavia db user will be granted ALL permissions to that database.

A new parameter octavia_provider_network_mtu is added to set the MTU to 1500 by default. This is important for deployments which allow jumbo frames while setting the management to the standard Ethernet MTU. The MTU can be still changed at any point during the initial octavia deployment or with the openstack network set –mtu command line.

The role now supports using the distribution packages for the OpenStack services instead of the pip ones. This feature is disabled by default and can be enabled by simply setting the octavia_install_method variable to distro.

Support separate oslo.messaging services for RPC and Notifications to enable operation of separate and different messaging backend servers in octavia.

The octaiva_db_pool_size variable was previously deprecated and is now removed. A replacement variable was introduced in the Xena release.

A new parameter octavia_provider_network_mtu is added to set the MTU to 1500 by default. This is important for deployments which allow jumbo frames while setting the management to the standard Ethernet MTU. The MTU can be still changed at any point during the initial octavia deployment or with the openstack network set –mtu command line.

For consistency reasons, octavia_db_pool_size was deprecated in favor of octavia_db_max_pool_size which is in a standardized format used in other repositories. octavia_db_pool_size support it will be removed in Yoga release.

The variable octavia_requires_pip_packages is no longer required and has therefore been removed.

The variable octavia_image_downloader has been removed. The image download now uses the same host designated by the octavia_service_setup_host for the image download.

The variable octavia_ansible_endpoint_type has been removed. The endpoint used for ansible tasks has been hard set to the ‘admin’ endpoint as is commonly used across all OSA roles.

The rabbitmq server parameters have been replaced by corresponding oslo.messaging RPC and Notify parameters in order to abstract the messaging service from the actual backend server deployment. - octavia_oslomsg_rpc_servers replaces octavia_rabbitmq_servers - octavia_oslomsg_rpc_port replaces octavia_rabbitmq_port - octavia_oslomsg_rpc_use_ssl replaces octavia_rabbitmq_use_ssl - octavia_oslomsg_rpc_userid replaces octavia_rabbitmq_userid - octavia_oslomsg_rpc_vhost replaces octavia_rabbitmq_vhost - octavia_oslomsg_notify_servers replaces octavia_rabbitmq_telemetry_servers - octavia_oslomsg_notify_port replaces octavia_rabbitmq_telemetry_port - octavia_oslomsg_notify_use_ssl replaces octavia_rabbitmq_telemetry_use_ssl - octavia_oslomsg_notify_userid replaces octavia_rabbitmq_telemetry_userid - octavia_oslomsg_notify_vhost replaces octavia_rabbitmq_telemetry_vhost - octavia_oslomsg_notify_password replaces octavia_rabbitmq_telemetry_password

Remove octavia_amp_image_id option as the corresponding configuration option in Octavia amp_image_id is deprected and image tags should be used instead.

It is recommended that the certificate generation is always reviewed by security professionals since algorithms and key-lengths considered secure change all the time.

Avoid setting the quotas too high for your cloud since this can impact the performance of other servcies and lead to a potential Denial-of-Service attack if Loadbalancer quotas are not set properly or RBAC is not properly set up.

The quota for security group rules was erroneously set to 100 with the aim to have 100 security group rules per security group instead of to 100*#security group rules. This patch fixes this discrepancy.