Copyright © 2016 Mirantis, Inc. All rights reserved

www.mirantis.com

Evolve or Die: Enterprise Ready OpenStack Upgrades with Kubernetes

Jakub Pavlik

Copyright © 2016 Mirantis, Inc. All rights reserved

Presentation Agenda

1. OpenStack Evolution2. New Fuel Architecture3. DEMO Scenarios4. Q&A

Live Demos!

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OpenStack Evolution

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OpenStack Evolution steps

Day 1Deploy

Day 2Operate

Day 3Upgrade

Deploying OpenStack is the easy part

Operation, Scaling and Upgrade is the difficult part

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OpenStack Complexity

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Requirements for DevOps

● Treat OpenStack as a set of Applications● Composable, Modular, Immutable● Split applications from infrastructure● Monolithic VMs (Fragile and Vertical)● Containers and Microservices

OpenStack is just another application workload

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Clearing Naming Confusion

● MCP = Mirantis Cloud Platform: next release of Mirantis distribution, designed to make operations simple. Not just OpenStack, but also includes Kubernetes, Calico and other components...hence MCP

● Fuel: Lifecycle management tool for MCP. We’ll be talking about new Fuel here today.

● Fuel in MCP != Fuel in MOS 9.0: significant architecture refactoring to support Day 2 and Day 3 operations.

MOS? TCP Cloud?

MCP? FUEL?

Etc.

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Mirantis Cloud Platform Operations-Centric Fabric for BM, VM and Containers

Host Host Host Host Host Host Host Host

Kubernetes

Host Host Host

K8s master K8s minionsBMaaS pool

Ironic

OpenStack Control Plane

OpenStack Computes

K8s workloads

Mon

itorin

g an

d Lo

ggin

g

Bare Metal VMs Containers

Life

cycl

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anag

emen

t

Today we’ll go over and demo the new architecture of Fuel lifecycle management tool that we are building for Mirantis Cloud Platform.

Copyright © 2016 Mirantis, Inc. All rights reserved

Fuel Architecture in MCP

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Fuel (Designed as a DevOps Center)

● Artifactory Provides artifact repository for CICD Pipeline

● Web Portal Simple UI for Artifactory, Jenkins, Gerrit

● Gerrit Git repositories with code review

● Jenkins CI/CD Engine● SaltStack To provide

orchestration capability for CICD Pipeline

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Deploy and Manage various clusters

● Builds MCP Components● Deploys MCP Components● Local or Remote MCP

Clusters● Manages MCP clusters with

different setups and components

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OpenStack Small Site Deployment

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Kube Node as OpenStack Controller

● OpenStack components in k8s PODs

● OpenContrail roles in PODs

● Calico as Plugin for k8s

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Kube Node as OpenStack Compute

● Libvirt & nova-compute in k8s POD

● OpenContrail in host OS

● Calico as network plugin for k8s

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Reclass metadata model - “Single source of truth”

● Where clusters/sites are defined● Reclass YAML as primary

method of defining sites● Metadata model allows:

● Hierarchical definition of sites

● Changes at any level of granularity

■ Global■ Site-Type■ Site■ Node

● Single location for all operations

● All changes as code commits● Audit trail

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Lifecycle Workflow - upgrade OpenStack Nova

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DEMO Scenarios

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#1 Deploy OpenStack on Kubernetes

● Deploy OpenStack on preinstalled Kubernetes cluster● 4 HW nodes

● 3 Nodes - Kubernetes Master/Nodes with OpenStack/OpenContrail control services

● 1 Compute● Launch Jenkins Deploy OpenStack pipeline

“ As an infrastructure administrator, I need to provision small site OpenStack deployment.”

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#2 Scale up OpenStack Component

1. Change Metadata model2. Push gerrit review3. Launch Jenkins Deploy OpenStack pipeline

“ As an infrastructure operator, I need to scale up my small deployment to at least 3 replicas.”

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#3 Configuration Change in OpenStack Nova

1. Change Metadata model2. Push gerrit review3. Launch Jenkins Deploy OpenStack pipeline

● Manually run Salt update and k8s rolling update to show what is behind

“ As an infrastructure operator, I need to add or modify the scheduler filters in nova.conf on my site.”

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#4 Upgrade OpenStack Cinder from Mitaka to Newton

“ As an infrastructure administrator, I need to upgrade Cinder component because of new storage features.”

1. Change Metadata model2. Push gerrit review3. Launch Jenkins Deploy OpenStack pipeline

● Manually run Salt update and k8s rolling update to show what is behind

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Q&A

Thank you for your time