Red Hat CoreOS and OpenShift v4
summary
Claim: Red Hat CoreOS merges Container Linux, Atomic Host and RHEL to deliver automated OS management for OpenShift v4. It uses Ignition for early-boot, embeds OS updates as oscontainers (ostree-in-container) inside the release payload, and runs a Machine Config Operator that rolls updates with maxUnavailable=1, drains nodes, applies ostree transactions, reboots the node into the new tree and supports rollback. Demo shows cluster-driven upgrades and a node booting into the updated OS.
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chapters (15)
- 0:00Intro
- 1:47Attack on Open Source Software
- 2:31Proprietary Software
- 3:09OpenShift
- 4:51Red Enterprise Linux
- 8:09Tectonic
- 12:43Ignition
- 18:00Containers
- 19:48Life cycle binding
- 22:23OpenShift Installer
- 25:08Machine Config Operator
- 29:01SSH Key
- 29:31Demo
- 34:11Machine API Operator
- 36:05OS Updates
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