Real World Kubernetes Deployments @ KubeCon 2015

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Real World Kubernetes Deployments failure domains, upgrades, high-availability @coreoslinux @brandonphilips

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Brandon Philips CTO, CoreOS github.com/philips

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Demo Instructions github.com/philips/real-world-kubernetes

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What is CoreOS?

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What is CoreOS?

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What is CoreOS?

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Why build CoreOS?

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architecture in practice kubernetes

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worker kubelet worker kubelet worker kubelet scheduler & API worker kubelet w ku t worker kubelet

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worker kubelet worker kubelet scheduler & API

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worker & API works on 1 node too

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etcd operations primary datastore

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etcd

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/etc distributed

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worker kubelet worker kubelet scheduler & API

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basic etcdctl usage demo

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multi-machine etcd demo

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Available Leader Follower

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Available Leader Follower

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Available Leader Follower

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Unavailable Leader Follower

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Available Leader Follower

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Available Leader Follower

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Temporarily Unavailable Leader Follower

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Available Leader Follower

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Unavailable Leader Follower

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multi-machine discovery demo

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etcd with TLS demo

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etcd restore backup demo

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1 2 3 4 { Log

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1 2 3 4 Entries

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1 2 3 4 Indexes

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API server cluster operations

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etcd to API server secured demo

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scheduler & API

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etcd down for API server demo

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scheduler & API

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etcd restore for API server demo

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scheduler & API

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high availability in cloud kube-aws

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scheduler & API EBS { ASG

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get into the cluster machine config

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[Service] ExecStart=/usr/bin/kubelet -- api_servers=https://core-01 --register- node=true --hostname-override=core-02 --cluster_dns=10.3.0.10 -- cluster_domain=cluster.local --tls- cert-file=worker.pem --tls-private-key- file=worker-key.pem

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node partition from API demo

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worker kubelet worker kubelet scheduler & API

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node stops responding demo

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worker kubelet worker kubelet scheduler & API

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Easy CoreOS+Kubernetes Setup vagrant, aws, bare metal, etc coreos.com/kubernetes/docs/latest/