Trying to troubleshoot the issues from Yesterday’s SELinux errors.
Continue reading
SE Linux for CentOS Continued
Reply
Category Archives: Kubernetes
Deploying Kubevirt on Origin Master
Now that I have a functional OpenShift Origin built from source, I need to deploy KubeVirt on top of it.
Here are my notes. This is rough, and not production quality yet, but should get you started.
Running OpenShift Origin built from source
Kubernetes is moving from Third Party Resources to the Aggregated API Server. In order to work with this and continue to deploy on OpenShift Origin, we need to move from working with the shipped and stable version that is in Fedora 26 to the development version in git. Here are my notes to get it up and running.
Customizing the KubeVirt Manifests
My cloud may not look like your cloud. The contract between the application deployment and the Kubernetes installation is a set of manifest files that guide Kubernetes in selecting, naming, and exposing resources. In order to make the generation of the Manifests sane in KubeVirt, we’ve provided a little bit of build system support.
What is minishift ssh anyway?
The documentation says that to access a minishift-deployed VM you can use `minishift ssh` to log in, but what if you want to use other tooling (like Ansible) to get in there? How can you use standard ssh commands to connect?
Adding External IPs for Minishift
In the interest of simplifying the development and deployment of Kubevirt, we decided to make sure it was possible to run with minishift. After downloading and running the minishift binary, I had a working minishift cluster. However, in order to deploy the api-server to the cluster, I needed an external IP; otherwise I’d get the error:
Error:
service "" is invalid spec.externalIPs: Forbidden: externalIPs have been disabled
Here is how I got around this error.
Redeploying just virt-controller for Kubevirt development
Bottom line up front:
cluster/vagrant/sync_build.sh cluster/kubectl.sh delete -f manifests/virt-controller.yaml cluster/kubectl.sh create -f manifests/virt-controller.yaml |
Running Kubevirt functional tests in Gogland
When tests fail, as they often will, the debugger can greatly shorten the time it takes to figure out why. The Kubevirt functional tests run essentially as a remote client. Getting a debuggable setup is not that different from my earlier post on running virt-launcher in the debugger.
Running virt-controller locally
While developing Kubevirt, I often want to step through my code. My most recent tasks have involved the virt-controller process. Here’s how I debug them.
Continue reading
Manually Deploying Kubevirt on OpenShift Origin
It has been enjoyable to learn the Kubevirt code base and coding in Go. However, unless the code gets deployed to servers, no one will use it in production. I’ve been learning OpenShift as an integration point for Kubevirt. Here are my notes for getting it up and running. This is not quite production grade, but should help write a proper deployment mechanism.
Please note, as of KubeVirt v0.17 installing KubeVirt directly via manifests is deprecated. KubeVirt is now deployed using the operator pattern.
https://kubevirt.io/user-guide/docs/latest/administration/intro.html
The rest of this document is maintained for historical value only.