Changing the default load balancer flavor

By default, a load balancer is created by using the private amphora flavor that cannot be managed via vinfra. You can, however, change it by using the OpenStack command-line tool.

Prerequisites

• To authorize further OpenStack commands, the OpenStack command-line client must be configured, as outlined in Connecting to OpenStack command-line interface.

To change the default load balancer flavor

1. Check if the default amphora flavor exists:

   # openstack --insecure flavor list --all
   +---------+---------+-------+------+-----------+-------+-----------+
   | ID      | Name    |   RAM | Disk | Ephemeral | VCPUs | Is Public |
   +---------+---------+-------+------+-----------+-------+-----------+
   | 100     | tiny    |   512 |    0 |         0 |     1 | True      |
   | 101     | small   |  2048 |    0 |         0 |     1 | True      |
   | 102     | medium  |  4096 |    0 |         0 |     2 | True      |
   | 103     | large   |  8192 |    0 |         0 |     4 | True      |
   | 104     | xlarge  | 16384 |    0 |         0 |     8 | True      |
   | amphora | amphora |  4096 |   30 |         0 |     2 | False     |
   +---------+---------+-------+------+-----------+-------+-----------+
   

2. Delete this flavor:

   # openstack --insecure flavor delete amphora
   

3. Create a new amphora flavor with custom parameters. For example:

   # openstack --insecure flavor create amphora --id amphora --ram 8192 \
   --vcpus 4 --disk 60 --private
   +----------------------------+---------+
   | Field                      | Value   |
   +----------------------------+---------+
   | OS-FLV-DISABLED:disabled   | False   |
   | OS-FLV-EXT-DATA:ephemeral  | 0       |
   | disk                       | 60      |
   | id                         | amphora |
   | name                       | amphora |
   | os-flavor-access:is_public | False   |
   | properties                 |         |
   | ram                        | 8192    |
   | rxtx_factor                | 1.0     |
   | swap                       |         |
   | vcpus                      | 4       |
   +----------------------------+---------+
   

4. Change the load balancer flavor by performing its failover. For example:

   # openstack --insecure loadbalancer failover mylbaas
   

The load balancer mylbaas will be recreated with 4 vCPUs, 8 GB of RAM, and 30 GB of disk space.