If a hypervisor is compromised, the Nova Compute instance running on that node is also compromised. If the compute instance is compromised, then its access to the Message Queue has to be considered tainted as well. What degree of risk does this pose?
Category Archives: Software
Creating an additional host for a Tripleo overcloud
I’ve been successful following the steps to get a Tripleo deployment. I now need to add another server to host the Identity Management and Federation services. Here’s the steps:
Keystone on Port 80 For Tripleo
Many services assume that Keystone listens on ports 5000 and 35357. I’d prefer to have Keystone listen on the standard HTTP(s) ports of 80 and 443. We can’t remove the non-standard ports without a good deal of rewriting. But there is nothing preventing us from running Keystone on port 80 or 443 in addition to those ports.
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OpenStack Keystone Q and A with the Boston University Distributed Systems Class Part 1
Dr. Jonathan Appavoo was kind enough to invite me to be a guest lecturer in his distributed systems class at Boston University. The students proved a list of questions, and I only got a chance to address a handful of them during the class. So, I’ll try to address the rest here.
A Holla out to the Kolla devs
Devstack uses Pip to install packages, which conflict with the RPM versions on my Fedora system. Since I still need to get work done, and want to run tests on Keystone running against a live database, I’ve long wondered if I should go with container based approach. Last week, I took the plunge and started messing around with Docker. I got the MySQL Fedora container to run, then found Lars Keystone container using Sqlite, and was stumped. I poked around for a way to get the two containers talking to each other, and realized that we had a project dedicated to exactly that in OpenStack: Kolla. While it did not work for me right out of a git-clone, several of the Kolla devs worked with me to get it up and running. here are my notes, distilled.
Dealing with Duplicate SSL certs from FreeIPA
I reinstalled https://ipa.younglogic.net. My browser started complaining when I try to visit it; The serial number of the TLS certificate is a duplicate. If I am seeing this, anyone else that looked at the site in the past is going to see it, too, so I don’t want to just hack my browser setup to ignore it. Here’s how I fixed it:
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Keystone Implied roles with CURL
Keystone now has Implied Roles. What does this mean? Lets say we define the role Admin to imply the Member role. Now, if you assigned someone Admin on a project they are automatically assigned the Member role on that project implicitly.
Let’s test it out:
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Deploying Keycloak via Ansible
Keystone needs to work with multiple federation sources. Keycloak is a JBoss based project that provides, among other things, SAML and OpenID connect protocols. As part of my work in getting the two integrated, I needed to deploy Keycloak. The rest of my development setup is done via Ansible and I wanted to handle Keycloak the same way.
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Rippowam
Ossipee started off as OS-IPA. As it morphed into a tool for building development clusters,I realized it was more useful to split the building of the cluster from the Install and configuration of the application on that cluster. To install IPA and OpenStack, and integrate them together, we now use an ansible-playbook called Rippowam.
HA for Tripleo
Juan Antonio Osorio Robles was instrumental in me getting Tripelo up and running. He sent me the following response, which he’s graciously allowed me to share with you.
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