Hi Suresh, Unfortunately, I am not able to install Magnum as I am running into some networking issues on the host machine. More specifically, when we install Magnum (using OpenStack devstack), it tries to modify the existing network by creating bridges & routers, and this somehow breaks the incoming SSH connections and I get logged out. Worse, I am no longer able to SSH back into the machine & the instance becomes unreachable.
The good news is that I am able to install OpenStack using devstack – with essentials such as Heat, Ceilometer. Now I can try to add the Magnum as a plugin to this. Thanks and Regards, Gourav Shenoy From: Suresh Marru <[email protected]> Reply-To: "[email protected]" <[email protected]> Date: Friday, September 16, 2016 at 9:32 AM To: Airavata Dev <[email protected]> Subject: Re: Building a Mesos (+Marthon) cluster using OpenStack Magnum Hi Gourav, Just reading through the user guide and the docs, this looks really elegant. If it can bring up a Mesos cluster and Marathon within 90 seconds thats really promising. Did you happen to check what will be latency in adding few more slaves into an existing cluster (magnum cluster-update mycluster replace node_count=8)? Suresh On Sep 15, 2016, at 11:50 AM, Shenoy, Gourav Ganesh <[email protected]<mailto:[email protected]>> wrote: Hi dev, I was reading about OpenStack Magnum here: http://docs.openstack.org/developer/magnum/userguide.html#mesos. Magnum provides a good set of APIs for managing multiple Container Orchestration Engines (COE) like Mesos, Swarm, Kubernetes. They have a step-by-step guide to setup a Mesos COE cluster using Magnum – which internally uses Heat to orchestrate the VMs (which form the cluster), and installs Marathon, Docker. A simple way to install OpenStack with Magnum is via Devstack. Here is the guide: http://docs.openstack.org/developer/magnum/dev/quickstart.html#building-and-using-a-mesos-cluster I am trying to build a Mesos-Marathon cluster on EC2 using this approach, and also in parallel using Shameera’s Ansible playbook to spin up a similar cluster on EC2. Thanks and Regards, Gourav Shenoy
