高仲廷 Chung-Ting Kaochungting.k@inwinstack.com

Combinations of OpenStack and Kubernetes

Who am I?

1

Work Experience− Am Senior Technical Manager in

− Was a Section Manager in

− Graduated from

高仲廷

Chung-Ting Kao

2

• Kubernetes on OpenStack on Kubernetes -The Infrastructure Club Sandwich.

− OpenStack Summit | Boston 2017

• 48 sessions on Kubernetes in Boston Summit

• It’s better to have Kubernetes and OpenStack both instead of having only one.

Motivation

After this session, you will learn

• What combinations of Kubernetes and OpenStack.

• Why you use a sandwich architecture.

• How to deploy the solution.

3

4

• Introduction− OpenStack

− Kubernetes

− Kubernetes on OpenStack

− OpenStack on Kubernetes

• Proposed Architecture− How to deploy?

• How to select a solution for you?

Outline

5

OpenStack can provide virtual machines, networks, and storages for multiple tenants.

What is

ref: https://www.openstack.org/software/

6

OpenStack can provide virtual machines, networks, and storages for multiple tenants.

What is

ref: https://www.openstack.org/software/

Infrastructure As Code

7

• OpenStack can deploy the same image in development, testing and operation environment.

• OpenStack help people to automate the process.

OpenStack and DevOps

8

Kubernetes is an open-source system for automating deployment, scaling, and management of containerized

applications.

What is

ref: https://kubernetes.io

Kubernetes

9

• Pros− Automatic binpacking

− Self-healing

− Horizontal Scaling

− Service discovery and load balancing

− Automated rollouts and rollbacks

− Storage orchestration

• Cons− Lack of multitenancy

10

• Deploy Kubernetes clusters in VMs on OpenStack.

• Can deploy multiple Kubernetes clusters

for multiple tenants.

Kubernetes on OpenStack

Physical Server

Linux / KVM

ku

be-

ap

ise

rve

r

etc

d

co

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olle

r-m

an

ag

er

Physical Server

Linux / KVM

Physical Server

Linux / KVM

kub

ele

t

do

cke

r

keys

ton

e

gla

nce

no

va

ku

be-

sch

ed

ule

r

ku

be-

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xy

no

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VMs VMs

Con

tain

er

Con

tain

er

ref: http://blog.kubernetes.io/2016/10/kubernetes-and-openstack-at-yahoo-japan.html

cin

de

r

ne

utr

on Linux / KVM Linux / KVM

11

• Deployment

• Update/upgrade

• High-Availability

OpenStack Challenges

12

• Run OpenStack service daemons as containers which are managed by Kubernetes.

• Solve the OpenStack Operation problems.

OpenStack on Kubernetes

Physical Server

Linux / KVM

ku

be

-a

pis

erv

er

etc

d

con

tro

ller-

man

ag

er

Physical Server

Linux / KVM

kub

ele

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r

Physical Server

Linux / KVM

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-sch

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ule

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-p

roxy

ku

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VM

ke

ysto

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on

13

Proposed Architecture

Physical Server

OS

Physical Server

OS

Physical Server

OS

VM

ku

be-

ap

ise

rve

r

etc

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olle

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ku

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let

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e-

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no

va

Con

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ke

ysto

ne

gla

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cin

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on

• Use a stable Container Management Platform as the base platform.

• All IaaS daemons are containers.

ContainerMgt.Platform

14

Magnum uses Heat to orchestrate an OS image which contains Docker and Kubernetes and runs that image in either virtual

machines or bare metal in a cluster configuration

Alternative Architectures

Physical Server

Linux / KVM

Physical Server

Linux / KVM

Physical Server

ke

ysto

ne

gla

nce

no

va

VMs cin

de

r

ne

utr

onLinux / KVM

Linux / KVM

Magnum

iro

nic

Open Source Projects

15

Kubernetes Deploy Tools− Kargo, Kubespray

− Helm

OpenStack Deploy Tools− Enterprise Solutions

− TripleO

− OpenStack-Ansible

Kubernetes on OpenStack− OpenStack Magnum (Heat)

− OpenStack Kuryr

OpenStack on Kuberentes− Kolla

− Kolla-ansible

− Kolla-Kuberentes

− OpenStack Helm

16

How to select a solution for you?

What does user want? How many tenants? When will be done?

VM

K8S

PaaS

OpenStack

Kubernetes

Kuberneteson

OpenStack

OpenStackon

Kubernetes

one

Multi-tenants

one

Multi-tenants

now

future

now

future

17

How to select a solution for you?

What does user want? How many tenants? When will be done?

VM

K8S

PaaS

OpenStack

Kubernetes

Kuberneteson

OpenStack

OpenStackon

Kubernetes

one

Multi-tenants

one

Multi-tenants

now

future

now

future

Consulting inwinSTACKcan’t go wrong.

18

Q & A送好禮！

蒞臨inwinSTACK攤位(S05)參加抽獎活動，亦有機會獲得好禮！

抽獎時段：(A) 13:20(B) 15:20(C) 16:20

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