MS Cloud Day - Deploying and monitoring windows azure applications

Deploying and Monitoring Windows Azure Application
Wely Lau (wely@ncs.com.sg)
Microsoft MVP, Windows Azure
Solutions Architect, NCS
Blog : http://wely-lau.net

Microsoft Cloud Day
Wely Lau Windows Azure MVP / Solutions Architect, NCS Pte Ltd
Deploying and Monitoring Windows Azure Application
Wely is the first Windows Azure MVP in Southeast Asia.
In NCS, he focuses on Cloud Computing, specifically on Windows Azure Platform. Performing cloud consultancy, architecting cloud solution, designing cloud framework, and delivering cloud training are his day-to-day activities.
This session learn how we can deploy application to Windows Azure ,install program on Windows Azure, and how do we monitor our application on Windows Azure.

Agenda
Basic Concept
Deploying
Upgrading
Monitoring
Start-up Task
Q & A

Understanding Packaging and Config
Windows Azure Services are described by two important artifacts:
Service Definition (*.csdef)
Service Configuration (*.cscfg)
Your code is zipped and packaged with definition (*.cspkg)
Encrypted(Zipped(Code + *.csdef)) == *.cspkg
Windows Azure consumes just (*.cspkg + *.cscfg)

Service Definition
Contains metadata needed by the Windows Azure environment to understand the requirements of your application.
Describes the shape of your Windows Azure Service
Defines Roles, Ports, Certificates, Configuration Settings, Startup Tasks, IIS Configuration, and more…
Can only be changed by upgrades or new deployments

Service Configuration
Sets values for the configuration settings defined in the service definition file and specifies the number of instances to run for each role.
Supplies Runtime Values (Scale, Config Settings, Certificates to use, VHD, etc.)
Can be updated any time through Portal or API

Fault and Upgrade Domains
Fault Domains
Represent groups of resources anticipated to fail together
i.e. Same rack, same server
Fabric spreads instances across fault domains
Default of 2
Upgrade Domains
Represents groups of resources that will be upgraded together
Specified by upgradeDomainCountin ServiceDefinition
Default of 5
Fabric splits Upgrade Domains across Fault Domains and Across Roles

Fault and Upgrade Domains Visualized
Fault Domain
Fault Domain
Rack
Rack
U/G Domain #1
U/G Domain #2
U/G Domain #1
U/G Domain #2
Web Role
Web Role
VM
VM
VM
VM
Worker Role
Worker Role
VM
VM
VM
VM

Deployment Environments
Two Environments to choose from
Nearly Identical…
<servicename>.cloudapp.net
<deploymentID>.cloudapp.net
VIP Swap between them

Agenda
Basic Concept
Deploying
Upgrading
Monitoring
Start-up Task
Q & A

Various Techniques Deploying to the Cloud
Windows Azure Portal
Visual Studio 2010
Windows Azure Service Management Cmdlets

Windows Azure Portal
http://windows.azure.com
You must create an Azure account, then a service, and then you deploy your code.
VS builds two files.
Encrypted package of your code
Your config file

Visual Studio
Deploy a management certificate
Connect to your service account
Publish inside of VS2010
Easy integration with IntelliTrace and Storage

Windows Azure Service Management Cmdlets
Set of PowerShell cmdlets
http://archive.msdn.microsoft.com/azurecmdlets
Wraps Management REST API and Diagnostics API
Enables building of sophisticated deployment scripts
Works with rest of .NET CLR

Deploy through Visual Studio
Deploy through PowerShell
demo

Agenda
Basic Concept
Deploying
Upgrading
Monitoring
Start-up Task
Q & A

Upgrading Windows Azure Application
Deployment Consideration
Downtime tolerance
VIP Address
Cost
Various options
Delete & Recreate
In Place Upgrade
Web Deploy
VIP Swap
DNS Swap*
Sometimes you MUST delete a deployment
Changes in endpoints, VM size, and binding
Try to minimize by specifying what you might need in advance

Delete & Recreate
Down time between deployments
You can change almost everything in your app
1 X your instance cost
New VIP
Hosted Service
Deployment v2
Deployment v1
Web Role
Web Role
Worker Role
Worker Role
VM
VM
VM
VM
VM
VM
VM
VM

In Place Upgrade
Reuses existing VMs (Preserves VM state i.e. local cache data)
Can update a single role
Cannot change the service definition
size, endpoints, roles, etc.
Utilizing Upgrade Domain to avoid downtime

In Place Upgrade
Rack
Rack
Web Role
Web Role
Load Balancer:
#1
#2
#1
#2
VM
VM
Prod
VM
VM
Worker Role
Worker Role
VM
VM
VM
VM

Web Deploy
Newly built-in in SDK 1.4.1
Quickly push incremental changes
Caveats:
Only applicable for single instance web role
Changes made will not be persistence
Development and testing purpose, not production!

VIP swap
Easier to undo
Requires 2 identical environments
Cannot update endpoints
Happen very fast
Typically within 1 mins
Hosted Service
Deployment v1
Worker Role
Web Role
VM
VM
Load Balancer:
VM
VM
Prod
Prod
Deployment v2
Stage
Stage
Web Role
Worker Role
VM
VM
VM
VM

DNS Swap
Use DNS as another layer of abstraction
Requires your own domain name
Updating the domain record is not immediate
New VIP
DNS:
whatever.com
Hosted Service (foo.cloudapp.net)
Hosted Service (bar.cloudapp.net)
Deployment
Deployment
Web Role
Worker Role
Web Role
Worker Role
VM
VM
VM
VM
VM
VM
VM
VM

Web Deploy
VIP Swap
demo

Agenda
Basic Concept
Deploying
Upgrading
Monitoring
Start-up Task
Q & A

Diagnostic: Common Task & Challenges
Common Diagnostic Task
Performance measurement
Troubleshooting and debugging
Capacity planning
Traffic analysis (users, views, peak times)
Billing & Auditing
Challenges in the Cloud
Many instances
Local storage is not persistence
They move around
Massive amount of data
Can’t remote desktop in
now you can do it with SDK >= 1.3 

Windows Azure Diagnostic API
Collects diagnostic data from your instances and copies it to a storage account
IIS Logs, Crash Dumps, FREB Logs
Arbitrary log files
Performance Counters
Event Logs
Debug/Trace statements
Infrastructure events
MonAgentHost.exe is started automatically by default.
Listener wired up in app/web.config
Need to define a storage account connection string

How does it work?
Role Instance
Role Instance Starts
Diagnostic Monitor Starts
Monitor is configured
Imperatively at Start time
Remotely any time
Monitor buffers data locally
User can set a quota (FIFO)
User initiates transfer to storage
Scheduled or On Demand
Where to store?
Role
Local directory storage
Diagnostic Monitor

Sample Results

Visualizing the data

Diagnostics Considerations
Volume of Data Storage
Standard costs apply for transactions, storage & bandwidth
Reaction Time
$ Cost
Monitoring 5 Performance Counters
every 5 seconds for 100 instances costs > $260 US dollar per month

Remote Desktop

Remote Desktop
Role 2
Role 1
IN_0
IN_0
IN_1
Port 3389
LB
IN_1
IN_2
Remote Forwarder
Internal Port 3389

Remote Desktop to Windows Azure
Installing Program on Windows Azure
demo

Agenda
Basic Concept
Deploying
Upgrading
Monitoring
Start-up Task
Q & A

Windows Azure Startup Tasks
Includes scripts that automate the preparation and configuration of roles
Scenarios: Perform short, unattended setups on role startup. E.g.
COM Component
Registry Key
Configuring a Windows Server Role, such as IIS
Installation
Startup.cmd
start /w pkgmgr /iu:IIS-ASP
REG ADD "HKEY_LOCAL_MACHINESOFTWAREMicrosoftActive SetupInstalled Components{A509B1A7-37EF-4b3f-8CFC-}" /v "IsInstalled" /t REG_DWORD /d 0 /f
winrar-x64-40b7.exe /s

Windows Azure Startup Tasks
<WebRolename="foo">
<Startup>
<Taskcommandline="relativepathToSetupExecutable"
executionContext="limited|elevated"
taskType="simple|foreground|background"/>
</Startup>
</WebRole>
Task Types:
Simple [Default] – System waits for the task to exit before any other tasks are launched
Background – System does not wait for the task to exit
Foreground – Similar to background, except role is not restarted until all foreground tasks exit

Installing through Start-up Task
demo

Resources
Windows Azure Platform Training Course
http://msdn.microsoft.com/en-us/wazplatformtrainingcourse.aspx
Building, deploying, and managing Windows Azure Applications
http://channel9.msdn.com/Events/PDC/PDC10/CS03
Deploying, Troubleshooting, Managing and Monitoring Applications on Windows Azure
http://www.msteched.com/2010/Europe/COS324
Windows Azure CmdLet
http://archive.msdn.microsoft.com/azurecmdlets
Remote Desktop to Windows Azure
http://tinyurl.com/azure-remote-desktop
Custom Domain Name in Windows Azure
http://tinyurl.com/azure-custom-domain

Any questions?
Q & A

Thank you!
Wely Lau (wely@ncs.com.sg)
Microsoft MVP, Windows Azure
Solutions Architect, NCS
Blog : http://wely-lau.net

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