I'm on a devstack host with Octavia master. By running "openstack loadbalancer provider capability list amphora", I can see "compute_flavor" of type "flavor", so that I can specify a nova flavor in "--flavor-data" parameter when creating flavorprofile. A full command line example: https://dpaste.com/4CB8GE2RN --- Lingxian Kong Senior Software Engineer Catalyst Cloud www.catalystcloud.nz On Sun, Dec 6, 2020 at 8:23 AM Satish Patel <satish.txt@gmail.com> wrote:

Folks,

I am deployed Octavia and now trying to understand how does flavor play there role using this guide https://docs.openstack.org/octavia/latest/admin/flavors.html

In my octavia.conf i have statically defined nova flavor so when i spin up LB it always use m1.amphora (UUID: 8651951f-e478-4efb-b298-cf3150d38472) which has 1vCPU/2GB memory.

# grep amp_flavor_id /etc/octavia/octavia.conf amp_flavor_id = 8651951f-e478-4efb-b298-cf3150d38472

Question: how do I create or tell octavia to use multiple nova flavors for example, I want 3 flavors

m1.amphora - 1vCPU/2GB/20GB disk m2.amphora - 4vCPU/4GB/20GB disk m3.amphora - 8vCPU/8GB/40GB disk (with HugePage and CPUpinning support)

I want my users to have the option to select whatever flavor they like. how does that fit here? I didn't find any document explaining that feature to select your desired nova flavor. Did I miss something?

On 12/5/20 8:18 PM, Satish Patel wrote:

Folks,

I am deployed Octavia and now trying to understand how does flavor play there role using this guide https://docs.openstack.org/octavia/latest/admin/flavors.html

In my octavia.conf i have statically defined nova flavor so when i spin up LB it always use m1.amphora (UUID: 8651951f-e478-4efb-b298-cf3150d38472) which has 1vCPU/2GB memory.

# grep amp_flavor_id /etc/octavia/octavia.conf amp_flavor_id = 8651951f-e478-4efb-b298-cf3150d38472

Question: how do I create or tell octavia to use multiple nova flavors for example, I want 3 flavors

m1.amphora - 1vCPU/2GB/20GB disk m2.amphora - 4vCPU/4GB/20GB disk m3.amphora - 8vCPU/8GB/40GB disk (with HugePage and CPUpinning support)

I want my users to have the option to select whatever flavor they like. how does that fit here? I didn't find any document explaining that feature to select your desired nova flavor. Did I miss something?

Hi, I'm not sure how to do what you wrote above, but what I know, is that what Octavia recommends isn't enough. For very busy sites, I would recommend 4GB of RAM, and I would strongly recommend having logrotate to rotate the logs every hours, plus not keep too many logs. I've done that because otherwise, we saw failures in the Amphora (no remaining HDD space, etc.). Though, in such setup, 4GB of HDD space is enough (instead of 2GB, which is what was recommended). You're pushing the limit to 20GB, that's really too much. I hope this helps, Cheers, Thomas Goirand (zigo)