Category: OpenShift
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Weekly Notes
In this update, I found a subnet cidr cheat sheet that helps greatly.
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Weekly Notes
There are so many interesting things to share: crane is a tool for interacting with remote images and registries. You can extract a binary my-util for a given architecture using: You can extract a binary from a manifest-listed image using: a. IBM/powervs-tang-server-automation: v1.0.4 b. IBM/powervm-tang-server-automation: v1.0.0
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Development Notes
Here are some things I found interesting this week: Day-0 Day-1 Day-2 Definitions day-0: customized installationday-1: customization performed only once after installing a cluster, day-2: tasks performed multiple times during the life of a cluster Thanks to a Red Hat colleague for this wonderful definition. sfdisk tips I used sfdisk in a PowerVM project. I…
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Weekly Tips and Notes
The tips and notes for the week are included, I hope they help you. TIP: Check the System Admins on OpenShift A quick one to find the cluster-admins… Ref: https://serverfault.com/questions/862728/how-to-list-users-with-role-cluster-admin-in-openshift Tip: Can I act as kube-admin? I needed to double check if I could act as kube:admin. Ref: https://docs.openshift.com/container-platform/4.12/cli_reference/openshift_cli/developer-cli-commands.html#oc-auth-can-i Blog Post: Advanced debugging techniques for OpenShift Container…
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Weekly Notes
For the week, I ran across a few things and wrote one blog for the IBM Power Developer Exchange. a. get the coreos container b. create the qemu vm As you define, build, and run your OpenShift Container Platform cluster, you should be aware of the rich security features available. Here is a curated list…
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Handy Dandy Tricks for the Week
As I work with Linux and the OpenShift Container Platform, I run into some handy tips, tricks and patterns that make my job easier, and I wanted to share with you all (and so I can find these details in the future): 1. Verifying etcd data is encrypted The etcd depends on the Kube-APIServer and…
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Things I learned this week
Things that I’ve learned for the week: Changing how you view your solutions can free you to modernise, evolve, and detect the challenges that lie ahead from a far better vantage point. On Monday, March 20th, traffic from the older k8s.gcr.io registry will be redirected to registry.k8s.io with the eventual goal of sunsetting k8s.gcr.io.
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Things for the Week
This week I learned a few things of interest: In close collaboration with Red Hat the IBM Power Ecosystem team has continued efforts to enable and advance products running on the Power platform. Click here to review the new releases in February: https://community.ibm.com/community/user/powerdeveloper/blogs/ashwini-sule/2023/03/02/red-hat-products-february-2023-releases IBM Power Developer Exchange I found the list helpful when using the Power…
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How to grab ignition files
I was helping a colleague grab the latest ignition files for his OpenShift Container Platform workers. worker can be replaced with master or any other MachineConfigPool The machine-config-server is hosted on each of the master nodes and the bootstrap node. Note, this makes it download ignition version 3.2.0. You can use this file for your work with worker ignition.…
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Interesting Things of the Week for February 17, 2023
Security Implementation with Red Hat OpenShift on IBM Power Systems …As with any production system, it is important to ensure the security of an OpenShift deployment. This includes secure deployment and configuration of the OpenShift components, as well as ongoing maintenance and monitoring to ensure the continued security of the environment. This Redpaper publication provides…