Switching from one connectionstring to another when moving from development to cloud - azure

I am working on a cloud application. When I test out the application on my computer I want to have my connection string set as follows in ServiceConfiguration.cscfg:
<Setting name="DataConnectionString" value="UseDevelopmentStorage=true" />
When I publish to the cloud I need to have it set as follows:
<Setting name="DataConnectionString" value="DefaultEndpointsProtocol=https;AccountName=xxxx;AccountKey=yyy" />
I keep going from one environment to the other and keep having to change the DataConnectionString.
Is there a way that I can automate this? I looked around and can't see any examples but I'm sure some others have the same problem as me.
Thanks,
Nancy

I've answered a similar question here:
Visual Studio 2010 can apply Debug or Release transformations to Web.config, but what about the Azure settings?

While Igorek's approach works perfectly we prefer to make such kind of transformations on our CI server which is also responsible for automatic deployment. The main reason is to restrict access to sensitive data, since only limited number of trusted developers have access to CI server. Also, it helps to keep our code cleaner, since it doesn't include redundant config project. In our case we use Hudson-CI (Jenkins-CI) and MSBuild.ExtensionPack.FileSystem.File (replace action) to transform config files.

In the part of your code that gets the connection string, you can use the #if(DEGUG) preprocessor directive in order to use something or not depending if the compilation is Debug or not, or the if(Debugger.IsAttached) (MSDN) in order to know if the debugger is attached.

You can use CloudConfigurationManager in Azure SDK 1.7 http://msdn.microsoft.com/en-us/LIBRARY/microsoft.windowsazure.cloudconfigurationmanager
This starts by looking in the ServiceConfiguration.cscfg e.g. ServiceConfiguration.Cloud.cscfg for config setting. If it isn't there it falls back to web.config and app.config
For example
CloudConfigurationManager.GetSetting("StorageConnectionString")
Will look in the appropriate cscfgfile for StorageConnectionString setting, then it will search the web.config and then app.config.

Related

what are all the locations in which connectionStrings can be defined for an iis site?

I'm trying to find all the locations in which a connectionString can be defined for an iis site (to write a script to extract them all).
I know it can be part of a web.config. I would like to have a complete list of files it can be configured in.
Does it make sense for it to be configured in the site code?
Which other configuration files can define a site's connectionStrings?
And a bonus question - how do I know the order of the files in which the connectionString is searched in ?
Thanks,
EDIT:
Additional info - all IIS sites are pure dotnet sites.
Also, specifying the general location of files, rather then file names, is also helpful.
E.g. - connectionStings can be located in external configuration files, whose location is defined at a in an appSettings element in the "%runtime install path%\config\machine.config" file.
Another option is to just link to the relevant docs.
My issue is that I haven't found anything conclusive.
As far as I know, there are several ways to configure connectionstring in ASP.NET applications.
Define it in code. This is the method used by many beginners. Because at this time they focus on code learning and logical understanding. But some people are accustomed to using it if the database is fixed, it does not need to be modified.
SqlConnection connection = new SqlConnection("Data Source=.\\SQLEXPRESS;Initial Catalog=mytest;Integrated Security=True");
Define it in web.config or App.config. The benefit of it is easy to modified connectionstring after publishing application. Developers can change web.config, no need to change code and deploy application again.
<connectionStrings>
<add name="mytest" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=mytest;Integrated Security=True;" providerName="System.Data.SqlClient" />
</connectionStrings>
Using External Configuration Files. ConnectionString is stored in a independent file for example connections.config. The benefit of it is modifying an external configuration file does not cause an application restart.
<?xml version='1.0' encoding='utf-8'?>
<configuration>
<connectionStrings configSource="connections.config"/>
</configuration>
About list all connectionstrings, you can use ConnectionStringSettingsCollection. It can get a connection by name and provider name.
I found a pretty good source for the locations of the IIS dotnet Framework configuration files - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/cc754617(v=ws.10)?redirectedfrom=MSDN#inheritance
You could define additional connectionStrings
In dotnet code.
In env.
In external config files.
For non-IIS scopes - such as user scopes and role scopes.
These 4 options are not specific to IIS.
I don't know where options (3) and (4) are defined, and I'm not sure if this list is complete. But by combing this list and the one in the doc, I think we have 99% coverage of defined connectionStrings.

How to deploy Azure service fabric project on to a remote cluster(Azure)

I have Created a cluster in Azure http://******.######.cloudapp.azure.com:19080
but don't know how to deploy my service fabric project on to it.
Link to application manifest
ApplicationManifest.xml
It's pretty well documented, unless you are getting specific errors, which you then will need to reference to get some worthwhile help
https://learn.microsoft.com/en-us/azure/service-fabric/service-fabric-publish-app-remote-cluster
Your first option is to use the powershell commands. You can also right-click your application in visual studio and select "Publish". Make sure you are using the correct publish profile.
Within Visual Studio, navigate to your Publish Profiles folder under the application and copy/paste the existing cloud.xml file and then rename appropriately. Ensure that you use the correct public facing I.P for your cluster, which will most likely be the load balancer.
The line should look like the following.
<ClusterConnectionParameters ConnectionEndpoint="<YOUR IP>:19000" />
Example:
<ClusterConnectionParameters ConnectionEndpoint="151.41.35.35:19000" />
However, if the cluster is secured you may need additional information. These options are shown within the commented Cluster Connection Parameters of the cloud.xml file.
Right click on the application, select publish and ensure the new publish profile is selected. Visual studio will attempt to validate the connection. Try to publish and keep an eye on the output window for insight in to the process.

Azure Service Configuration Files

So I have been banging my head against a wall on this one...I am trying to publish an Azure Web Role and I have two ServiceConfiguration files:
ServiceConfiguration.Cloud.cscfg
ServiceConfiguration.Local.cscfg
In my publish xml I have:
<AzureServiceConfiguration>Cloud</AzureServiceConfiguration>
So my assumption here is that when I publish it will use the Cloud cfg.
For working locally, under the emulator I have set the flag for local debugging to use Local.
However it would seem that this flag here also determines the cscfg to use for the cloud...so I am a little confused - is this the correct behavior or am I missing something? I really want to have a separate one for local as I have different values I need.
Update
Suddenly it started to work fine today. Didn't really change anything.
Tom, your publish XML configuration file is OK, and your publish to Azure will use the .Cloud.cscfg.
You can pick which of the configuration files you want to use when publishing (right click > Publish...), on the second screen (under Service configuration).
What you did for your local environment should work fine, and use the .Local.cscfg file.

VS2012 Web Deploy Package to create application pool

I have a web application project in VS2012 which I'm publishing using a "Web Deploy Package". I want this package to include app-pool settings, specifically creating an IIS app-pool and assigning the newly created application to it.
I'm familiar with the option "Include application pool settings used by this Web project" available when the project is configured to use an IIS instance (not IIS Express), but IIS configuration is not part of the project file, and thus not source controlled. What happens when somebody builds a deployment package on a machine that hasn't had IIS meticulously configured? Not ideal.
How else then, can I go about getting AppPool settings into my web deploy package? I understand that the appPoolConfig provider is IIS7+ only, I'm fine with that limitation. I've banged my head against this issue in the past and never found a solution. 18 months later, we've got a new VisualStudio version, and a new web-publishing-pipeline, are there new options to address this? Or maybe something I missed when I first tackled this problem?
Edit
OK, I'm seeing the following as options:
Configure my project to sync settings from an IIS instance. As mentioned, I'm not a fan of this given that it puts settings outside of the project, meaning the environment has to be meticulously configured to build + publish. Plus it drags along other IIS settings I don't want included.
Inject something into the web-publishing-pipeline (WPP) to modify the archive.xml. I've toyed with this in the past and had limited success. One problem is the pipeline isn't exactly co-operative with working directly on the archive.xml file, another problem is some of the more cryptic attributes involved, like MSDeploy.MSDeployProviderOptions which appears to have some Base64 encoded binary? No idea what to put in there.
Find an existing "provider" that can do what I want. I might be out of luck here, the appPoolConfig provider only seems to want to read / write IIS, not, say, an XML file of settings. Does anybody know otherwise?
Write my own "provider" to produce manifest output entries. I'm not sure, is it possible to write a custom provider that writes to a manifest using the name of an existing provider? As in, MyCustomPoolProvider writes appPoolConfig sections into a manifest? This sounds like a potentially painful exercise that may or may not work. Would I still need to figure out the encoding of whatever is going into MSDeploy.MSDeployProviderOptions?
I get the feeling that the fundamental obstacle with Web Deploy for what I'm trying to accomplish, is how strictly it leans on "providers". The pre-existing providers are largely designed for IIS synchronisation, not primary development and publication. It so happens that some of these providers can be relatively easily hooked into via MSBuild, but the majority insist on pulling data from IIS, and that's that.
You are correct in your understanding of the appPoolConfig provider, in that it can only sync between App Pools and can't be provided with the configuration directly. What you could potentially do is keep a copy of the appPool in question in package form (ie. msdeploy -verb:sync -source:appPoolConfig=PoolName -dest:package=apppool.zip) and attempt to hijack the pipeline so that the MSDeploy call adds the application content into the package, leaving the existing content there.
Alternatively, you could always keep the packages separate and deploy them with different calls to MSDeploy.
FYI, MSDeploy.MSDeployProviderOptions is simply an encoded version of the parameters supplied to the provider when it was packaged. For example, -source:dirPath=c:\,ignoreErrors=0x10293847 -dest:package=package.zip would package the ignoreErrors value.

Enterprise Web Library web.config not currently compatible with Azure?

I am trying to use Enterprise Web Library with Windows Azure. It appears that the web.config file for the EWL project works fine locally, but when I deploy to Azure the application cannot initialize. After logging in and viewing the site locally on Azure, it appears there are several web.config elements EWL requires that are locked on Azure. I've had to edit the following in order to have the application initialize on Azure:
Remove <serverRuntime uploadReadAheadSize="8388608" />.
Remove everything nested inside of the modules element.
The application seems to run fine on Azure after removing these parts.
The Web.config elements you removed are important to ensure that EWL works properly: uploadReadAheadSize fixes a problem with client certificate authentication, and using <clear/> in the <modules> section makes the behavior of EWL applications consistent across different servers by keeping the same set of modules in the pipeline regardless of what IIS features are installed on the machine.
There has to be a way to unlock these config sections in an Azure web role. Assuming they are locked in the web role's applicationHost.config file, maybe you can modify this file using a startup script as described in this answer: https://stackoverflow.com/a/10140024/35349.
I am not very familiar with Enterprise Library. If William’s suggestions do not help, please check your web.config to see if you’re missing any configuration sections. On your local machine, when you install Enterprise Library, it may modify machine.config to add certain configurations. But they may not exist in the cloud. So please search your local machine.config to see if there’re any Enterprise Library specific sections, and then add them to your web.config.
Best Regards,
Ming Xu.

Resources