Craig Peters, Director of Product Management at Mirantis gave a great talk on Application Management in OpenStack with the use of their Murano App Catalog at the latest OpenStack Israel Meetup.

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www.mirantis.com
Application Management in
OpenStack
OpenStack Israel - 5 Aug 2015
Craig Peters, Director of Product Management, Mirantis
@peterscraig

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Even Simple Systems Exhibit Complex Behaviors
Even a simple logistic
system results in
complex outcomes
Xn+1
= rXn
(1-Xn
)
Reference: Wiki: Logistic Maps https://en.wikipedia.org/wiki/Logistic_map

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Large Distributed Systems are Complex

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Large Distributed Systems are Complex

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Large Distributed Systems are Complex

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Large Distributed Systems are Complex

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Large Distributed Systems are Complex

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How to Handle Complexity?

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OpenStack exposes
infrastructure resources
so they can be controlled
programmatically
→Compute
→Network
→Persistent Storage
→Ephemeral Caching
→Auth/Access
→Monitor/Logs/Audit
→OS-Image/Virtualization
→User Credentials
Each app “can” specify its own infrastructure...

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Every
programmable
resource has a
potentially
independent
revision
cycle.
Application’s
internal
configuration
… but each app also becomes a snowflake*
APPLICATION
/WORKLOAD
/SERVICE
Network
switch and
routing
Persistent
Storage
Operating
System
Image
East/West
authentication
access/control
Ephemeral
(cache)
Storage
Monitoring
Logging
User
credentials
*snowflake -- unique configuration,
difficult to manage consistently

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Puppet
Chef
Salt
Heat
...
Declarative Approaches to Simplify
Enable operators to control
the end state of the cloud

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Declarative Approaches to Simplify
Local cloud dependencies
● Networks
● Security groups
● Availability zones
● Roles
● Storage
● Backup software...
Result: versions of
templates for every
deployment environment

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How can the developer
define?
● Deploy
● Upgrade
● Scale
● Backup/restore
For every deployment
environment?
The developer shouldn’t care
at all about the deployed
environment.
Declarative Approaches to Simplify

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OperatorDeveloper
Imperative Approach to Simplify
Service
User
Infrastructure Requirements
Deployment config & app mgt.
Publish to Catalog

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Keep complexity in the box improves out-of-box
OpenStack Catalog
Developers and Operators
1. Define
- Raw Application
- Murano Packaging
and Logic
- Heat, etc. (Orches-
tration Assets &
Templates)
- VMs/OS-Images
2. Operate
OpenStack Catalog
Users
1. Click 2. Launch
White Box Black Box

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Murano High-Level Workflow
Define
App/Service
Lifecycle
Actions
Push Murano
Package to Git
Pull Murano
Package from
Git
Modify for Local
Cloud and
Merge
Publish to
Catalog
Browse Catalog
Manage
Environ-
ments
App/Service
Actions
ConsumerOperatorDeveloper

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Developer Defines Generic Lifecycle
Define the basic steps for each lifecycle events using a
simple workflow language
Object oriented to define events with inputs
● deploy, upgrade, scale, backup, restore, etc…
Documentation https://murano.readthedocs.org/en/stable-kilo/articles/app_pkg.html

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Developer Defines Generic Lifecycle
https://murano.readthedocs.org/en/stable-kilo/murano_pl/murano_pl_index.html

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Wordpress Example

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Wordpress Example
https://github.com/openstack/murano-apps/tree/master/WordPress/package

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Wordpress Example

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Continuous signaling from dev to ops
OperatorDeveloper
Application
Repository
Infrastructure
Ops Config
Repository
Murano Package:
• Manifest
• Classes
• User input requirements
• Image dependencies
• Supporting Files
Murano
Service
Murano service
codifies Dev-Ops
contract

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Cloud Operator Adapts to Local Clouds
Application | Chef | Puppet (extensible)
https://github.com/openstack/murano-
agent/tree/master/muranoagent/executors

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Cloud Operator Adapts to Local Clouds
Easily re-use Heat, Chef, Puppet and any local scripts
https://github.com/openstack/murano-
apps/blob/master/Chef/GitChef/package/Classes/GitChef.
yaml
to specify local rules and policies

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Cloud Operator
Refine the UI to only ask for needed input
https://murano.readthedocs.org/en/stable-
kilo/articles/dynamic_ui.html

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Consumer Uses Cloud Operator Controlled UI/API

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Murano partitions OpenStack cloud app/service lifecycle mgt.
1. Catalog users:
Launch apps/services independent of infra dependencies
2. Cloud Application/Service developers
Specify apps’ infra needs, no direct binding of resources
3. Cloud administrators
Configure and control automation for deployment,
operations OpenStack cloud apps/workloads
Murano delivers apps/services to OpenStack faster

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OpenStack Community Apps Catalog
http://apps.openstack.org
https://wiki.openstack.org/wiki/App-Catalog
https://github.com/openstack/murano-apps

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Thank You!
Q&A

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Accelerates uptake of OpenStack Cloud & workloads
● Infrastructure flexibility without reducing stability
● Simple out-of-box launch to cloud for users -> point/click
● Insulate app developers and users from infra changes, complexity
● Streamline packaging, automation-chain complexity
● Simplify how developers specify infra needs
● Improve OpenStack interoperability
● Readily extensible for orchestration, PaaS frameworks, other IaaS
● Support cloud native, cloud-ready and legacy apps
Key Murano benefits

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DEVS
IT USERS
IT INFRA
Validation
Test Target
Tenant config
New version
of App ready
for Test
New version
of App validated
for deployment
Murano
sets infra app
deployment
reqts
Murano
publishes
app to
catalog
User
launches
app
directly
Enabling IT Ops for continuous deployment
Continuous Integration Continuous Deployment