I recently created a new Centos VM. When it booted, I noticed it did not have a working ethernet connection. So, I started playing with things, and got it working. Here are my notes:
Enabling an Ethernet connection on Centos7
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Category Archives: Sysadmin
OpenShift Origin Default Auth
Once I got the Ansible playbook to run, I was able to poke at the openshift setup.
The install creates a default configuration in the Ansible users home directory on the master node.
Installing OpenShift Origin via Ansible on Fedora 25
While many people referred me to run one of the virtualized setups of OpenShift, I wanted something on baremetal in order to eventually test out KubeVirt. Just running
oc cluster up
As some people suggested did not work, as it assumes prerequisites are properly set up; the docker registry was one that I tripped over. So, I decided to give openshift-ansible a test run. Here are my notes.
Installing and Running Ansible on Fedora 25
I have two machines beyond the Laptop on which I am currently typing this article. I want to manage them from my workstation using Ansible. All three machines are running Fedora 25 Workstation.
Barely Functional Keystone Deployment with Docker
My eventual goal is to deploy Keystone using Kubernetes. However, I want to understand things from the lowest level on up. Since Kubernetes will be driving Docker for my deployment, I wanted to get things working for a single node Docker deployment before I move on to Kubernetes. As such, you’ll notice I took a few short cuts. Mostly, these involve configuration changes. Since I will need to use Kubernetes for deployment and configuration, I’ll postpone doing it right until I get to that layer. With that caveat, let’s begin.
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Importing a Public SSH Key
Rex was setting up a server and wanted some help. His hosting provider had set him up with a username and password for authentication. He wanted me to log in to the machine under his account to help out. I didn’t want him to have to give me his password. Rex is a smart guy, but he is not a Linux user. He is certainly not a system administrator. The system was CentOS. The process was far more difficult to walk
ControllerExtraConfig and Tripleo Quickstart
Once I have the undercloud deployed, I want to be able to quickly deploy and redeploy overclouds. However, my last attempt to affect change on the overcloud did not modify the Keystone config file the way I intended. Once again, Steve Hardy helped me to understand what I was doing wrong.
Bypassing Version Discovery in Keystoneauth1
I’ve been a happy Dreamhost customer for many years. So I was thrilled when I heard that they had upgrade Dreamcompute to Mitaka. So, like the good Keystoner that I am, I went to test it out. Of course, I tried to use the V3 API.  And it failed.
What? Dreamhost wouldn’t let me down, would they?
No. V3 works fine, it is discovery that is misconfigured.
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Reproducing an Open vSwitch Bridge Configuration
In the previous post, I described the setup for installing FreeIPA on a VM parallel to the undercloud VM setup by Tripleo Quickstart. The network on the undercloud VM has been setup up by Ironic and Neutron to listen on a network defined for the overcloud. I want to reproduce this on a second machine that is not enrolled in the undercloud. How can I reproduce the steps?
Continue readingInstalling FreeIPA on a Tripleo undercloud
I’ve been talking about using FreeIPA to secure OpenStack since the Havana summit in Portland. I’m now working with Tripleo to install OpenStack. To get the IPA server installed along with Tripleo Quickstart requires a VM accessible from the Ansible playbook.