Hi folks, CC Hongbin Lu - PTL of Magnum and Zun. I am very interested in container-related projects in OpenStack ecosystems, especially Magnum and Kolla and I also have a plan to deploy Magnum in my lab for HPC researching purposes. But I have some questions regarding of deployment model of Magnum: 1. What is the pros/cons of deployment containers on VMs comparing with containers on bare metal? I have seen RackSpace providing their container service on bare metal and some other providers, but Amazon use container on VM instead. The only problem I saw with container on VM is only about management of quota and resources. Deploying containers on VM will lead us to think about whether we need to provide more containers on x VM for user or we need to provide x+1 VMs for user to scale based on their needs. There are 2 layers for operators to manage: 1st is VMs quota/resources and 2nd is containers. 2. Currently Magnum is on her way to implement the integration with Ironic but I can not see the clearer way to keep track about this feature (I have read the etherpad of Magnum team after summit). My team really want to contribute in this feature but we need something clearer to make a decision. Can you provide us some specs or related bp? Thanks, Hieu LE. -- -----BEGIN GEEK CODE BLOCK----- Version: 3.1 GCS/CM/IT/M/MU d-@? s+(++):+(++) !a C++++(++++)$ ULC++++(++)$ P L++(+++)$ E !W N* o+ K w O- M V- PS+ PE++ Y+ PGP+ t 5 X R tv+ b+(++)>+++ DI- D+ G e++(+++) h-- r(++)>+++ y- ------END GEEK CODE BLOCK------