Discussion about OpenShift.  OpenShift has been fully open-sourced, available on GitHub for local deployment, or directly usable as a hosted solution. Rule #1: IaaS != PaaS Virtual machines : Application is not necessarily 1:1 Rule #2: PaaS is not a silver bullet Great for Self-service deployment of applications, varied volatile workloads (development, testing, scale-up/out), with tightly … Continue reading Build a PaaS using Open Source Software

Great co-hosted Red Hat & Splunk discussion about CloudForms-Splunk integration! Goal: Measure CloudForms utilization by date/time, by user, by cloud povider, and totals. Simple rsyslog config to send the right data over into Splunk, then just add the "Splunk for Red Hat CloudForms" app -- the metrics stated in the above goal are there, right … Continue reading Campground: CloudForms + Splunk

Red Hat has several options for storage needs -- GFS2, CIFS, (p)NFS, Gluster.  It's all about right tool for the job. http://www.redhat.com/summit/sessions/index.html#103 RHEL Resilient Storage - GFS2 Shared storage, scales up to 100TB per instance, supports 2-16 nodes in the cluster, x86_64 only. Performance is directly related to server and storage class, and to access … Continue reading Distributed File System Choices: Red Hat Storage, GFS2, & pNFS

SELinux provides *very* strong sandboxing capabilities.  In very simplistic terms --- access control can now be applied not just at the filesystem, but also across network access, X access, enforced and automatic chroots that are cleaned-up when the process ends, all with fine-grained audit logging. But -- this ain't your grandma's chmod.  There is some … Continue reading SELinux for Immortals