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Build a 3-node mongodb cluster using puppet (for use with High Availability Graylog in this case)
One of the core components to a Graylog installation in MongoDB. Quite possibly the worst database ever to grace the planet :) Hopefully, from a Graylog prospective, MongoDB will disappear from the solution soon. Anyway, from an architecture prospective, we want to use a highly available Graylog deployment aka Graylog HA. Of which, there is […]
Tags: Graylog, HA, linux, MongoDB, Puppet
Posted in Puppet | No Comments »
OpenStack cloud-init cannot contact or ping 169.254.169.254 to establish meta-data connection – fix
Using OpenStack Open vSwitch with VLAN’s removes a lot of the trickery involved with using public and private IP’s. That way each VM gets it’s own real IP address assigned to it. In this case, our network layout looks as such: That being said, the VM’s still need a way to get back to 169.254.169.254 […]
Tags: 169.254.169.254, Cloud-Init, linux, OpenStack
Posted in Cloud, Cloud-Init, Linux, Networking, Neutron, Open Stack | 2 Comments »
Configuring OpenStack Havana Cinder, Nova and Glance to run on GlusterFS
Configuring Glace, Cinder and Nova for OpenStack Havana to run on GlusterFS is actually quite simple; assuming that you’ve already got GlusterFS up and running. So lets first look at my Gluster configuration. As you can see below, I have a Gluster volume defined for Cinder, Glance and Nova. [root@g1 ~(keystone_admin)]# gluster volume info Volume […]
Tags: Gluster, GlusterFS, Havana, linux, OpenStack, RDO
Posted in Cloud, Linux, Open Compute, Open Stack, OpenCompute, Storage | 5 Comments »
OpenCompute Winterfell RHEL/CentOS PXE boot over serial console
The main issue with installing OS’s on these Winterfell servers is the complete lack of video card :) Your only option is serial console using the USB > Serial header adapter. So the task is to install RedHat or CentOS (or other RHEL style OS’s) via PXE, with serial console only access. To do this, […]
Tags: linux, OCP, opencompute, pxe, Winterfell
Posted in KVM, Linux, Open Stack, OpenCompute, Virtualization | 1 Comment »