Weekly Kubernetes Community Hangout Notes - May 1 2015
Every week the Kubernetes contributing community meet virtually over Google Hangouts. We want anyone who's interested to know what's discussed in this forum.
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Simple rolling update - Brendan
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Rolling update = nice example of why RCs and Pods are good.
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...pause… (Brendan needs demo recovery tips from Kelsey)
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Rolling update has recovery: Cancel update and restart, update continues from where it stopped.
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New controller gets name of old controller, so appearance is pure update.
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Can also name versions in update (won't do rename at the end).
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Rocket demo - CoreOS folks
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2 major differences between rocket & docker: Rocket is daemonless & pod-centric.
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Rocket has AppContainer format as native, but also supports docker image format.
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Can run AppContainer and docker containers in same pod.
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Changes are close to merged.
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demo service accounts and secrets being added to pods - Jordan
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Problem: It's hard to get a token to talk to the API.
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New API object: "ServiceAccount"
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ServiceAccount is namespaced, controller makes sure that at least 1 default service account exists in a namespace.
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Typed secret "ServiceAccountToken", controller makes sure there is at least 1 default token.
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DEMO
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* Can create new service account with ServiceAccountToken. Controller will create token for it.
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Can create a pod with service account, pods will have service account secret mounted at /var/run/secrets/kubernetes.io/…
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Kubelet running in a container - Paul
- Kubelet successfully ran pod w/ mounted secret.