Kubernetes Anywhere

Kubernetes Anywhere is a coherent, platform-agnostic way to provision Kubernetes clusters. Presented at the Berlin Kubernetes Meetup, 6 April 2016. https://github.com/weaveworks/kubernetes-anywhere

Transcript

1. weaveworks- Kubernetes Anywhere Coherent, platform-agnostic provisioning
2. weaveworks- @mfdii
3. weaveworks- @mfdii
4. weaveworks- kube-apiserver
5. weaveworks- kube-apiserver etcd
6. weaveworks- kube-controller-manager kube-apiserver etcd
7. weaveworks- kube-controller-manager kube-scheduler kube-apiserver etcd
8. weaveworks- kube-controller-manager kube-scheduler kube-apiserver kube-proxy kubelet etcd
9. weaveworks- kube-controller-manager kube-scheduler kube-apiserver kube-proxy kubelet etcd
10. weaveworks- kube-controller-manager kube-scheduler kube-apiserver kube-proxy kubelet etcd
11. weaveworks- kubelet kube-proxy kube-controller-manager kube-scheduler kube-apiserver kube-proxy kubelet etcd
12. weaveworks- kubelet kube-proxy kube-controller-manager kube-scheduler kube-apiserver kube-proxy kubelet etcd
13. weaveworks- etcd etcd kubelet kube-proxy kube-controller-manager kube-scheduler kube-apiserver kube-proxy kubelet etcd
14. weaveworks- etcd etcd kubelet kube-proxy kube-controller-manager kube-scheduler kube-apiserver kube-proxy kubelet etcd etcdN.cluster.internal k0.cluster.internal kN.cluster.internal
15. weaveworks- Deployment choices • Bare metal? • Cloud provider — DigitalOcean, Linode? • Cloud platform — AWS, GCE, Azure? • Fully hosted — GKE, Deis?
16. weaveworks- Deployment choices • Container OS — CoreOS, Atomic, Snappy? • Automation tools — Puppet, Chef, Salt, Ansible?
17. weaveworks- Deployment choices • Network — base, overlay, IPVLAN? L2, L3? • Storage — platform-provided, NFS, Ceph, Flocker, Quobyte? • Monitoring — host-only, exception tracking, instrumenting?
18. weaveworks- Deployment choices • Databases — hosted, containerized, separate deployment? • Cluster management — live upgrades, rebuild? • Access control?
19. weaveworks- Deployment choices • Artifact repository — fileserver, internal registry, hosted registry? • Integration testing — none, Jenkins, Circle? • Deployment — ad-hoc, version-tracked, CD pipeline?
20. weaveworks- @mfdii
21. weaveworks- Kubernetes interacts with it all • Some is lightweight e.g. monitoring (cAdvisor, Prometheus) • Some is deeply coupled e.g. networking (Flannel, Weave, Calico) • Some sits in between e.g. container runtime (Docker, rkt)
22. weaveworks- All choices are valid • Choices are driven by • Legacy systems • Institutional experience and knowledge • Individual opinions
23. weaveworks- Wouldn't it be nice • Solve the problems • Make as few choices as possible • No opaque magic to hide a bunch of complexity
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26. weaveworks- Weave Net • Start with the network and everything falls into place • Weave as bootstrap/management network (& network for pods) • Fully self-contained, no external requirements e.g. etcd • Comes with DNS • ‛ Each Kubernetes component gets its own DNS name
27. weaveworks- Kubernetes Anywhere • 100% containerized Kubernetes (including TLS!! if you want it) • Zero config scale-out & in-place upgrades • Almost no opinions baked in • Weave Net + bare metal = ✓ • Weave Net + Terraform + EC2 = ✓ • Weave Net + docker-machine + DigitalOcean = ✓
28. weaveworks- Kubernetes Anywhere
29. weaveworks- Kubernetes Anywhere
30. weaveworks- Kubernetes Anywhere
31. weaveworks- Kubernetes Anywhere
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35. weaveworks- Kubernetes Anywhere
36. weaveworks- Kubernetes Anywhere
37. weaveworks- kubectl Kubernetes Anywhere
38. weaveworks- Demo
39. weaveworks- ABCDEs of cloud-native apps • Write the App, to your own requirements • Build and test it • Provision a Cluster to run the app • Deploy to the cluster • Execute the app e.g. move traffic to it
40. weaveworks- Thanks! github.com/weaveworks/kubernetes-anywhere