OpenStack Summit Barcelona 2016 - openstack running on top of Kubernetes. Introduction of a new Mirantis Cloud Platform.

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www.mirantis.com
Evolve or Die: Enterprise
Ready OpenStack Upgrades
with Kubernetes
Jakub Pavlik

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Presentation Agenda
1. OpenStack Evolution
2. New Fuel Architecture
3. DEMO Scenarios
4. Q&A
Live Demos!

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OpenStack Evolution

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OpenStack Evolution steps
Day 1
Deploy
Day 2
Operate
Day 3
Upgrade
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
MonitoringandLogging
Bare Metal VMs Containers
LifecycleManagement
Today we’ll go over and demo the
new architecture of Fuel lifecycle
management tool that we are
building for Mirantis Cloud
Platform.

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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 model
2. Push gerrit review
3. 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 model
2. Push gerrit review
3. 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 model
2. Push gerrit review
3. 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