I have a client coming on board to Azure from other cloud service provider. They would like to host up to 10 web apps on Azure and cost is really an issue for them.
Normally I'm suppose to create VM's that would host each of these web Apps; but they can't afford the price. Hence the choice of deploying all of them on the same Azure App service plan.
I think Azure App service offers only 50gb storage. The 10 Web Apps would require storage capacity far more than 50gb; is it scalable or can we link each of these Apps to an Azure storage account. And also is there any implications for deploying multiple web Apps on an Azure App Service plan
An App Service Plan is capable to run multiple Web Apps, each in its own sandbox. It's like a VM but as a PaaS service. Note that the storage included in the plan will be shared across all Web Apps so you'll have to use Azure Storage if you want to store more data.
An App Service Plan is designed to handle multiple web apps/Function apps, use BLOB Storage or similar for your data it will scale to whatever you need, depending on your needs you can add further services like Azure Front Door to load balance multiple apps on multiple app service plans
One important thing to remember is that the app service plan has limitations with outbound connections so even if each of your webapps are not so busy the sum of them all might bring you over the limit so be very careful how you handle your outbound connections.
Related
I read about the Deployment Slots on Azure App Service, and all docs and articles point out that these can be used for something like Prod and Stage versions of an app, with a swap of Stage to Prod to promote it to Prod after testing.
But is that the only use case? For example, we have a web app hosted on Azure App Service. Now we need to make a variation of that app for a specific purpose. It will never be swapped with the production slot. It will just co-exist as basically two separate apps.
Can deployment slots be used like this? Any downsides? It seems to me to be a way to host two or more web apps in an App Service without creating multiple App Services (therefore lower cost).
Technically I believe it is possible to do what you are suggesting because each deployment slot does host a fully functional version of your application and you can access specific slots using this routing method. You would simply deploy each environment to its own slot and never swap them.
You can create additional web applications at no cost. You are only paying for the App Service Plan, and you can have as many web apps running on that plan as you want, so you would be better off creating a separate App Service for each of your environments, and since they are all non-production, you can safely run them all in the same App Service Plan.
You can deploy multiple separate WebApps under an App Service Plan. All those WebApps (/websites) will have their own separate default domain (FQDN) and also you can set custom domain for each of those WebApps.
App Service – Service which enables you to build and host web apps, mobile back ends, and RESTful APIs.
Apps– Your individual Apps (WebApps), these apps run in App Service Plan.
App Service Plan - An App Service Plan (ASP) defines a set of compute resources for a web app to run.
Since you pay for the computing resources your App Service plan allocates, you can potentially save money by putting multiple apps into one App Service plan. You can continue to add apps to an existing plan as long as the plan has enough resources to handle the load. However, keep in mind that apps in the same App Service plan all share the same compute resources.
If those are separate WebApps, it would be easier to manage separate WebApps than via virtual subdirectories/paths or hostname, or sub-domains. Using App Service Plan feature (provision many apps under the tier) to save cost.
Downsides:
There is a limitation for hosting number of apps in an app service plan bases on plan Tiers you are using, like you can host up to 100 apps in a same app service plan if using the Shared Plan Tier and in the Free Tier, you're charged per app in the app service plan. Refer this for more details.
Azure maintenance requires servers to restart at least once a month or more. If all your apps are on a shared plan, a patch reboot can mean the entire system is down and that all apps compete for resources when starting up simultaneously
Deployment and restarting of apps can cause CPU spikes for the plan (which is a server). If your apps are performance sensitive and you deploy often, you might want more separation.
Note:
Use separate plans as environment boundaries, so a production plan separate from a test plan. "Test" apps go on test plan, "Prod" apps on production to prevent testing from impacting users.
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What is the difference between an Azure Web Site and an Azure Web Role
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I am using MVC application in VS2015.Now we are planning to migrate our MVC5 Web application to Azure app service. I am getting confused with cloud service with Azure app service.
Just wanted to check can we migrate MVC5 application to Azure app service ?
I have installed Azure SDK
Do i need to install VS 2017 to have Azure App service or with Azure SDK will work.
Does the cloud service project and Azure App service both are different?
Please help me in understanding more
There are many differences between Azure Web Apps and Cloud Services.
App Service Web Apps is a fully managed compute platform that is optimized for hosting websites and web applications. This platform-as-a-service (PaaS) offering of Microsoft Azure lets you focus on your business logic while Azure takes care of the infrastructure to run and scale your apps.
On the other hand, Cloud Services is an example of Platform-as-a-Service (PaaS). Like App Service, this technology is designed to support applications that are scalable, reliable, and cheap to operate. Just like an App Service is hosted on VMs, so too are Cloud Services, however, you have more control over the VMs. You can install your own software on Cloud Service VMs and you can remote into them.
More control also means less ease of use. Unless you need the additional control options, it's typically quicker and easier to get a web application up and running in Web Apps in App Service compared to Cloud Services.
In Azure App Service, deployment and management are integrated into the platform, sites can scale quickly to handle high traffic loads, and the built-in load balancing and traffic manager provide high availability. You can move existing sites to Azure App Service easily with an online migration tool, use an open-source app from the Web Application Gallery, or create a new site using the framework and tools of your choice.
Also, there are many ways in which one can perform direct code deployment to Azure App Service. You can use FTP/Kudu (Git/Mercurial or OneDrive/Dropbox)/Web Deploy etc.
Hope this clears your confusion.
I have an azure mobile service that is running on top of SQLAzure DB. The Database is geo-replicated. I am looking to setup a failover for mobile service in case if the primary endpoint goes down. I have looked into traffic manager but it does not support mobile service endpoints also setting up another mobile service that talks to the replicated DB not possible as the replicated copy is read-only.
What are the possibilities of setting up a failover for mobile services endpoints.
There are several mechanisms for hosting mobile APIs on Azure - Azure Mobile Services is tied to a single region, so you can't fail that over. Azure Mobile Apps is the next generation of Azure Mobile Services and is built on top of Azure App Service Web Apps - it's an extension of the work there. As a result, you can leverage all the cool features of Azure App Service for your mobile service. If you haven't taken a look yet, then take a look at migrating your service to Azure App Service Web Apps.
Once there, Traffic Manager is definitely what you want. You can read about the process of using Traffic Manager with an Azure web app here: http://blogs.msdn.com/b/benjaminperkins/archive/2014/06/02/using-traffic-manager-with-microsoft-azure-web-site.aspx
I would like to run Virtual Machines as Worker Role inside an Azure App Service Environment. I think I've tried and read everything. Is this scenario supported at all?
The short answer is no. Azure VM's, worker roles (cloud services), and App Services are three different hosting offerings.
Virtual Machines are an Infrastructure as a Service (IaaS) solution. Think of it as your own server in the cloud. It is the most most flexible option. However, you are responsible for managing and patching it.
Cloud Services are a Platform as as Service (PaaS). Your concerns are limited to building and deploying your application. Microsoft manages updating the underlying VM.
App Services are a higher level of PaaS. Specifically, you can think of Web Apps (formerly Web Sites) as a hosted IIS. You have the least amount of control compared to the other platform offerings, but it is the easiest way to get started.
I would suggest trying to run your application first in an App Service, then moving to a cloud service if you need more control, and finally to a VM when even more flexibility is required.
More information:
http://robertgreiner.com/2014/03/windows-azure-iaas-paas-saas-overview
http://blogs.msdn.com/b/hanuk/archive/2013/12/03/which-windows-azure-cloud-architecture-paas-or-iaas.aspx
I have read that it is possible to use Azure Traffic Manager to load balance (or failover) web apps and cloud services.
Is it possible to use Azure Traffic Manager to add failover capability to Azure Queues or Topics?
No, this feature is used for Azure Web Apps (former Azure Web Sites), Cloud Services and Virtual Machines.