Basics of Kubernetes on BOSH: Run Production-grade ... · What is Kubernetes (K8s) • Kubernetes,...
Transcript of Basics of Kubernetes on BOSH: Run Production-grade ... · What is Kubernetes (K8s) • Kubernetes,...
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Colin Humphreys, CTO, Cloud, PivotalNathan Ness, Technical Product Manager, CNABU
CNA3429BU
#VMworld #CNA3429BU
Basics of Kubernetes on BOSH: Run Production-grade Kubernetes on the SDDC
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• This presentation may contain product features that are currently under development.
• This overview of new technology represents no commitment from VMware to deliver these features in any generally available product.
• Features are subject to change, and must not be included in contracts, purchase orders, or sales agreements of any kind.
• Technical feasibility and market demand will affect final delivery.
• Pricing and packaging for any new technologies or features discussed or presented have not been determined.
Disclaimer
CONFIDENTIAL 2
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Agenda
Introductions
What and Why of SDDC
What and Why Bosh
What and Why Kubernetes
What and Why Kubo
What and Why of PKS
What and Why of Google
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Introductions
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What and Why of SDDC
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What is the SDDC
6
Abstraction of Hardware
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7
Compute VirtualizationSDDC
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OpsTeams
Network StorageCompute
WW
A A
R
Web
2 VMs, 2CPU, 2GB mem, 10GB disk, RHEL
LoadBalancer
Open 80,443
App
2 VMs 4CPU, 4GB mem, 30GB disk
Open 22 internal only, 8443 from Web
Request Infrastructure
web_instance: webxyz
flavor: m1.small
image: RHEL-x86_64-chef
network: web-net
security: web-sec
quantity: 2
-------<snip>----------
Web-net: web-net
Subnet: 10.10.0.0
Mask: 255.255.255.0
Web-sec: name: web-sec
in: allow: tcp: 22
out: allow: tcp: 80, 443
Describe Infrastructure
Days & Variability Fast &
Predictable
flavor: m1.small
Cpu: 2
Mem: 2
Disk: 10
Cloud APIs
Infrastructure
“Consumer”
Wait
https://youtu.be/Nk8JCAgmDmg
Long LivedShort Lived
IaaS
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What and Why of Bosh
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VS
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Release
Software
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BOSH
Director
VM
Release
Software
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BOSH
Director
VM
Release
Software
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BOSH
Director
VM
Release
Software
Stemcell
OS
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BOSH
Director
VM
Release
Software
Stemcell
OS
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BOSH
Director
VM
Manifest
Definition
Release
Software
Stemcell
OS
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BOSH
Director
VM
Manifest
Definition
Release
Software
Stemcell
OS
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BOSH
Director
VM
Manifest
Definition
Release
Software
Stemcell
OS
Cloud
IaaS
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BOSH
Director
VM
Manifest
Definition
Release
Software
Stemcell
OS
Cloud
IaaS
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bution
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Day Two
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Day TwoOps problem now
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Day TwoOps problem now
• Declarative and self-healing
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Day TwoOps problem now
• Declarative and self-healing• Updates - canaries + MIF
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Day TwoOps problem now
• Declarative and self-healing• Updates - canaries + MIF• Scaling - director holds all
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What and Why Kubernetes
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I have 1000’s of containers!!
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What is Kubernetes (K8s)
• Kubernetes, is an open-source platform for managing, automating deployment, scaling, and operating containerized applications across a cluster of worker nodes.
39
Capabilities:
• Deploy your applications quickly and
predictably
• Scale your applications on the fly
• Seamlessly roll out new features
• Optimize use of your hardware by using only
the resources you need
Role:
• K8s sits in the Container as a Service (CaaS)
or Container orchestration layer
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Deployment_X.yaml
ContainerImage1
Replicas: 3
ContainerImage2
Replicas: 2
10,000 Foot View
• Container Cluster = “Desired State Management”
– Kubernetes Cluster Services (w/API)
• Worker = (Container Host) have agent called “Kubelet”
• Deployment = Configuration File of desired state
• Container Image = Runs in a Pod
• Replicas = QTY of Pods that must be running
40
Worker
(Container Host)
P1R1
Worker
(Container Host)
P1R2 P2R1 P1R1
P2R1
Worker
(Container Host)
P1R3 P2R2 P2R2
Kubernetes
Cluster
ServicesAPI
K
K
KDeployment_Y.yaml
ContainerImage1
Replicas: 1
ContainerImage2
Replicas: 2
P1R1
P1R2
P2R1
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What and Why of Kubo
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What problem does Kubo solve?
Uniform way to instantiate, deploy, and manage highly available Kubernetes clusters. On any cloud.
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What and Why of PKS
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BOSH
Director
VM
Manifest
Definition
Release
Software
Stemcell
OS
Cloud
IaaS
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Manifests
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Manifests“Normal” CF is ~6000 lines of
YAMLVMworld 2017 Content: N
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Manifests“Normal” CF is ~6000 lines of
YAMLVMworld 2017 Content: N
ot for publicatio
n or distribution
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Manifests“Normal” CF is ~6000 lines of
YAML
---
instance_groups:
- azs:
- z1
instances: 3
jobs:
- name: etcd
properties:
etcd:
peer_require_ssl: false
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Tenancy
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TenancyEverybody wants their own
KubernetesVMworld 2017 Content: N
ot for publicatio
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TenancyEverybody wants their own
Kubernetes
• Privileged containers
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TenancyEverybody wants their own
Kubernetes
• Privileged containers• Security
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TenancyEverybody wants their own
Kubernetes
• Privileged containers• Security• Network performance isolation
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TenancyEverybody wants their own
Kubernetes
• Privileged containers• Security• Network performance isolation• Storage performance isolation
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TenancyEverybody wants their own
Kubernetes
• Privileged containers• Security• Network performance isolation• Storage performance isolation• API Versioning
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BOSH-managed Kubernetes environmentsprovisioned through a service broker.
BOSH
ServiceBroker
VSphere
So, what is PKS?
pks cli
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K8s cluster
BOSH-managed Kubernetes environmentsprovisioned through a service broker.
BOSH
ServiceBroker
VSphere
So, what is PKS?
pks cli
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K8s cluster
BOSH-managed Kubernetes environmentsprovisioned through a service broker.
BOSH
ServiceBroker
VSphere
kubectl
So, what is PKS?
pks cli
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K8s clusterK8s clusterK8s cluster
BOSH-managed Kubernetes environmentsprovisioned through a service broker.
BOSH
ServiceBroker
VSphere
kubectl
So, what is PKS?
pks cli
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K8s clusterK8s clusterK8s clusterK8s cluster
BOSH-managed Kubernetes environmentsprovisioned through a service broker.
BOSH
ServiceBroker
VSphere
K8s clusterK8s clusterkubectl
So, what is PKS?
pks cli
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Sample v1.0 PKS CLI Experience
Deploy a K8s cluster instance$pks create-service kubo-odb small myk8s
Get access credentials to Kubernetes API$pks create-service-key myk8s myk8s-key
Use existing Kubernetes toolchain$kubectl get pods --namespace=kube-system
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What and Why of Google
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Apps are cross-compatible between PKS and Google Container Engine (GKE)
Google Container
Engine (GKE)Pivotal Container
Service (PKS)
Private and
Public Cloud
Public Cloud
(on GCP)
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“But I’m Not Google!”How any enterprise can use hyper-scale Google cloud services
[PBO3475BU]
Wednesday, Aug 30, 11:00 a.m. - 12:00 p.m. | Mandalay Bay Ballroom L, Level 2
Google Container
Engine (GKE)Pivotal Container
Service (PKS)
Private and
Public Cloud
Public Cloud
(on GCP)
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The Future of PKS
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FutureColin’s crystal ball
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FutureColin’s crystal ball
• Automated cred rotation
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FutureColin’s crystal ball
• Automated cred rotation• Integrations everywhere!
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FutureColin’s crystal ball
• Automated cred rotation• Integrations everywhere!• Workflow automation
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FutureColin’s crystal ball
• Automated cred rotation• Integrations everywhere!• Workflow automation• Closer ERT integration
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FutureColin’s crystal ball
• Automated cred rotation• Integrations everywhere!• Workflow automation• Closer ERT integration• The best way to deploy K8s
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Q&A
82
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