Cf intro for spring devs

Introduction to Cloud Foundry
for Spring & Java Developers

Eric BOTTARD
Developer Advocate
@ebottard / ebottard@vmware.com

The Open
Platform as a Service

Deploy and scale applications in
seconds, without locking yourself into a
single cloud

CONFIDENTIAL

Eric BOTTARD

§ Developer Advocate at VMware
§ @ebottard
§ ebottard@vmware.com

CONFIDENTIAL

Agenda
§ What is Platform as a Service
§ Introducing Cloud Foundry
§ The benefits of being Open
§ Avoiding Vendor Lock-in
§ Demos
§ Under the Hood
§ Spring makes it Easy
§ Cloud Foundry BOSH

CONFIDENTIAL

“I just want to deploy my code…”

What if…

target
<any
cloud>

push
<my
app>

bind
<my
services>

instances
<my
app>
+100

What’s Happening with Applications Today?
§ Frameworks are what really matter
• Developer productivity and innovation
• Reduce time to market

§ New application types
• Mobile, Social, SaaS
• Apps released early and often

§ Data intensive
• Emerging requirements: elasticity, multi-cloud
• Web orientation drives exponential data volumes

§ Deployed on virtual and cloud infrastructures
• Virtualization, Cloud, PaaS
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Do your current apps look like this?

Tomcat

.war
Browser Apache MySQL

9

Chances are they will soon look like this..
Tomcat

search.
war

Desktop
Browser

Tomcat

Native users.
Node.js Message Bus war Mongo
Mobile
Front End e.g. RabbitMQ
App

HTML5
Mobile
App
Tomcat

orders.
war MySQL

10

Cloud Stack - Classic Pyramid

Software
as a Service


Infrastructure as a Service

Cloud Stack - By Value

Software
as a Service


Infrastructure
as a Service

Cloud Foundry – The Open Platform as a Service

Target a choice of
deployment clouds

Provide a choice of Bind a choice of
development application
frameworks services

github.com/cloudfoundry

CONFIDENTIAL

Why Cloud Foundry?
Developer Agility
• Friction-free way to develop, test and deploy applications
• Focus on writing applications, not meddling with middleware and infrastructure

Portability without changes
• Write once, test-scale-deploy to private/public clouds without code changes
• Quickly build and test on a laptop and scale to the cloud

Open - The freedom to choose
• Choice of clouds for deployment, industry frameworks, and application services
• Extensible architecture to “future proof” for rapid cloud innovation
• Community open-source project - access, evaluate and contribute

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CloudFoundry.COM – Multi-Tenant PaaS Operated by
VMware
CloudFoundry.COM (beta)
Frameworks

Services

vCenter / vSphere

Infrastructure

Micro Cloud FoundryTM – Cloud on a Stick
Micro Cloud Foundry

Frameworks

Services

Your Laptop/PC

Single VM instance of
Cloud Foundry
that runs on a developer’s
MAC or PC

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CloudFoundry.ORG – Community Open Source Project


§ .NET x 2 § Memcached
§ PHP § SQL Server
§ JRuby § Neo4j
§ Python § CouchDB
§ Rails 2.x § VirtualBox
§ Clojure § Mono
§ Erlang § Rack
§ Haskell

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CloudFoundry.ORG – Community Open Source Project
CloudFoundry.ORG

Community Frameworks Contributions

Community Services Contributions

Your Infrastructure

Download Setup Tool Chain & Deploy Behind
Code Environment Scripts Firewall
Cloud
Foundry
BOSH

Apache2
license

CONFIDENTIAL

Cloud Foundry Open Source Workflow
cloudfoundry.com

production updated ~2x/week

github

on +2 and ✓ change pushed to github

Reviewers +1/-1 Gerrit Code Review +2/-2 Committers
reviews.cloudfoundry.org

test verification score ✓ ✗ git push triggers test execution

Jenkins CI
ci.cloudfoundry.org
21
CONFIDENTIAL

Open Source Advantage: more features

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Open Source Advantage: more innovation

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Multi-Cloud Flexibility is Critical
§ Make use of both public and private clouds without rewriting your
applications
§ Protect against vendor lock-in
§ Meet different compliance and geographical needs
§ Manage your growth, accommodate peak loads & optimize costs

Public Private Micro
Clouds Clouds Clouds

CONFIDENTIAL

Main Risk: Lock In
Welcome to the hotel california
Such a lovely place
Such a lovely face
Plenty of room at the hotel california
Any time of year, you can ﬁnd it here

Last thing I remember, I was
Running for the door
I had to ﬁnd the passage back
To the place I was before
’relax,’ said the night man,
We are programmed to receive.
You can checkout any time you like,
But you can never leave!

-the Eagles

CONFIDENTIAL

Broad Industry Investment

CONFIDENTIAL

Cloud Foundry - Making Multi-Cloud a Reality
Private Cloud Management and Public Cloud
Distributions Deployment Operators

.COM

Bare metal

CONFIDENTIAL

Cloud Foundry: Clouds
§ AppFog.com
• community lead for PHP
• PaaS for PHP

§ Joyent
• community lead for Node.js

§ ActiveState
• community lead for Python, Perl
• Providers of Stackato private PaaS

CONFIDENTIAL

Cloud Foundry Logical View
Developers Users
vmc

Routers

CloudControllers App App

HealthManager
Execution Agents
Services
(DEA) Pool

Messaging

CONFIDENTIAL

“ Environment Variables [...] unlike custom config
files, or other config mechanisms such as Java
System Properties, are a language- and OS-
agnostic standard
The Twelve Factor App, http://www.12factor.net

35

VCAP_*
VCAP_APP_HOST = 192.168.1.13

VCAP_APP_PORT = 58121

VCAP_SERVICES =
{
"redis-2.2": [
{
"name": "my-redis-service",
"label": "redis-2.2",
"plan": "free",
"tags": [
"key-value",
"nosql",
"redis-2.2",
"redis"
],
"credentials": {
"hostname": "127.0.0.1",
"host": "127.0.0.1",
"port": 5000,
"password": "ce7b483f-66d1-436d-8aa7-7c33a9ee31ac",
"name": "e740add8-24ce-40f5-94ed-8a2623e0be57"
}
}
],
"postgresql-9.0": [...]
}

36

So, you could...
Use System.getEnv(“VCAP_SERVICES”)

but it’s better to:

<dependency>
<groupId>org.cloudfoundry</groupId>
<artifactId>cloudfoundry-runtime</artifactId>
<version>0.8.2</version>
</dependency>

37

CloudEnvironment & Friends

// Gives access to the VCAP_* variables
CloudEnvironment env = new CloudEnvironment();
if (env.isCloudFoundry()) {
// Parses and retrieves info about the service named "mydb"
RdbmsServiceInfo info =
env.getServiceInfo("mydb", RdbmsServiceInfo.class);
// From there, you can either...
info.getHost();
info.getPort();
// ...or create a DataSource with the given info
RdbmsServiceCreator creator = new RdbmsServiceCreator();
DataSource ds = creator.createService(info);
}

38

Spring: your local config
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/mydb" />
<property name="username" value="myuser" />
<property name="password" value="s3cr3t" />
</bean>

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="persistenceUnitName" value="myPersistenceUnit" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect" />
</bean>
</property>
</bean>

40

Spring: Cloud Foundry config

41

Spring: Cloud Foundry config
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/mydb" />
<property name="username" value="myuser" />
<property name="password" value="s3cr3t" />
</bean>

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="persistenceUnitName" value="myPersistenceUnit" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect" />
</bean>
</property>
</bean>

41

Auto-reconfiguration
§ Works for Spring, Node, Ruby
§ Spring: Uses a BeanFactoryPostProcessor
under the hood
• adds a jar to your app
• modifies web.xml to load the BFPP
• also adds correct jdbc driver jar
§ Only works if no ambiguity (80% of apps)
• One service of a kind

CONFIDENTIAL

Introducing the <cloud:x> namespace
§ For the remaining 20% of apps
• if your app uses e.g. 2 DataSources
• or if you want more control

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:cloud="http://schema.cloudfoundry.org/spring"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://schema.cloudfoundry.org/spring
http://schema.cloudfoundry.org/spring/cloudfoundry-
spring-0.8.xsd">

CONFIDENTIAL

<cloud:service-scan />
§ Scans all bound services and creates a bean for each
§ Use @Qualifier to disambiguate:
@Inject
@Qualifier("mysql-source")
private DataSource sourceDS;

@Inject
@Qualifier("mysql-destination")
private DataSource destDS;

CONFIDENTIAL

Explicit service listing
<cloud:data-source id="beanId" service-name="mysql-db">
<cloud:connection properties="..."/>
<cloud:pool pool-size="..." max-wait-time="..."/>
</cloud:data-source>

<cloud:mongo-db-factory id="..." service-name="..." write-concern="NONE">
<cloud:mongo-options connections-per-host="..." max-wait-time="..."/>
</cloud:mongo-db-factory>

<cloud:rabbit-connection-factory id="..." service-name="...">
<cloud:rabbit-options channel-cache-size="..."/>
</cloud:rabbit-connection-factory>

<cloud:redis-connection-factory id="..." service-name="...">
<cloud:pool pool-size="..." max-wait-time="..."/>
</cloud:redis-connection-factory>

CONFIDENTIAL

Using Profiles
§ Spring 3.1 introduced the concept of profiles
• A set of beans that can be activated as required
• Usually controlled by spring.profiles.active system property
• Cloud Foundry activates “cloud” profile for you
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">

<beans profile="profileA">
<bean id="someId" />
<bean id="onlyInProfileA"/>
</beans>

<beans profile="profileB">
<bean id="someId" />
</beans>

<bean id="always-present" />
</beans>
CONFIDENTIAL

Using Profiles
xmlns:cloud="http://schema.cloudfoundry.org/spring"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://schema.cloudfoundry.org/spring
http://schema.cloudfoundry.org/spring/cloudfoundry-spring-0.8.xsd">

<beans profile="default">
<bean id="dataSource" class="BasicDataSource">
...
</bean>
</beans>

<beans profile="cloud">
<cloud:data-source id="dataSource" service-name="mysql-db"/>
</beans>

</beans>

CONFIDENTIAL

Production Grade Cloud Foundry Clusters
§ 500 – 5,000 VMs cloudfoundry.com

§ 40+ unique node types
§ 75+ unique software packages
§ 75+ unique environments
§ 2x/week cf.com updates
§ 24x7x365 non-stop operation
§ No-downtime deployments
§ Reliable, robust, repeatable
deployments, updates, capacity
adjustments
§ Small teams manage many
production, staging, stress, qa, dev
instances

Google style problem è Google style solution
CONFIDENTIAL

Cloud Foundry BOSH
§ Cloud Foundry BOSH is an open source tool-chain for release
engineering, deployment, and lifecycle management of large scale
distributed services
• Prescriptive way of creating releases and managing systems and services
• It is not a collection of shell scripts, not a pile of Perl

§ Built to deploy and manage production-class, large scale clusters
• Production grade Cloud Foundry clusters: 500+ VMs, 40+ jobs, 75+ packages
• Multi-node, multi-tier, complex clusters: e.g., our Gerrit/Jenkins Cluster

§ Built for devops usage and scale by a crack team of veterans
• A project, not a product: command line interface, YAML, etc.
• Continuous improvement, iterative development, rough edges

github.com/cloudfoundry/bosh
CONFIDENTIAL

BOSH: under the hood

BOSH User
“BOSH is deployed by BOSH”

bosh cli director healthmon
cloudfoundry.com

db redis nats

workers blobs active jobs

agent
IaaS CPI stemcell disk

51 CONFIDENTIAL

IaaS neutral by design

vSphere: battle tested implementation,
thousands of deployments CPI: code complete
vCloud Director: “work in progress”, 2H 2012 functional status: “work in progress”

Cloud Foundry BOSH

Cloud Provider Interface (CPI)

github.com/piston/openstack-bosh-
cpi

contribute: github.com/cloudfoundry/bosh

52
CONFIDENTIAL

BOSH Resources
@DrNic
http://drnicwilliams.com/2012/04/16/creating-a-bosh-from-scratch-on-aws/

@BrianMMcClain
http://www.brianmmcclain.com/2012/05/08/using-bosh-with-vsphere-part-2/

@VadimSpivak
http://www.youtube.com/watch?v=pASQT5mGc_g

https://github.com/cloudfoundry/bosh

https://groups.google.com/a/cloudfoundry.org/group/bosh-users/topics

https://github.com/piston/openstack-bosh-cpi
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Key Takeaways
§ PaaS is the application platform for the Cloud era
§ Cloud Foundry is the Industry’s Open PaaS
• Developer agility
• Portability without changes
• Open system

§ What’s next?
• Free Signup: www.cloudfoundry.com (use “cloudtoday” as a promocode)
• Get started: docs.cloudfoundry.com/getting-started.html
• Learn more on the blog: blog.cloudfoundry.com
• Download your Micro Cloud Foundry: my.cloudfoundry.com/micro
• Get the source code: www.cloudfoundry.org
• Follow us: @cloudfoundry
• Watch us: www.youtube.com/cloudfoundry
CONFIDENTIAL

Thank You!

Eric BOTTARD
Developer Advocate
@ebottard / ebottard@vmware.com

CONFIDENTIAL

Credits
§ With slides and ideas from
• Josh Long (@starbuxman)
• Patrick Chanezon (@chanezon)

§ Images
• http://www.sxc.hu/photo/651837

CONFIDENTIAL

Cf intro for spring devs

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