How do I connect to a database on-premises from an Azure WebJob or an Azure Function? Is this even possible?
I've been recently researching this and have found there a 3 avenues to connect app services to on prem database, as of today anyway.
Hybrid Connection, VNET Integration or App Service Environment
The later 2 options require VPN or Express (I think) connectivity to a cloud VNET. The VNET Integration option requires a separate VNET with PointToSite gateway connecting to your existing VNET. The App Service Environment is a quite expensive option as your App Service Plan is actually hosted inside your VNET, no longer being a shared host.
Related
Can Azure Functions be deployed inside a VNet?
If I created an App Service environment in a VNet and then picked that App Service Plan when creating the Function, Would that mean that the Azure Function is deployed inside the VNet and have the same restrictions etc. as defined by the VNet?
Yes, you can host an Azure function on Azure App Service Environment which provides a fully isolated and dedicated environment for securely running App Service apps or your functions. You will have fine-grained control over inbound and outbound application network traffic. So it could be restricted by network security groups.
ASEs are isolated to running only a single customer's applications and
are always deployed into a virtual network. Customers have
fine-grained control over inbound and outbound application network
traffic. Applications can establish high-speed secure connections over
VPNs to on-premises corporate resources.
VNet Integration with Azure function is a feature to use Azure Functions to connect to resources in an Azure virtual network. VNet Integration is only for making outbound calls from your app into your VNet.
In this case, you just need to deploy your Azure function in a VNet with ASE instead of VNet integration. Read Services that can be deployed into a virtual network
Yes it can be deployed inside a VNet. I would recommend you to go through the documentation
integrate Functions with an Azure virtual network
An Azure Function can be deployed on an App Service Environment. The App Service Environment is deployed on your own VNET which can have access to on-prem resources via ExpressRoute.
I'm exploring Azure but unable to figure out how to allow my App service to connect to the VNET I created so it can access the HDInsight cluster.
My scenario is this, I'm running a Kafka HDInsight cluster deployed in the VNET I created and I need to also deploy my Azure Web App for Container in the same VNET so it can connect to the Kafka brokers.
I haven't seen a good documentation on this, need help on how to set the Azure app service to connect to my VNET over a private network?
The Network is disabled (don't know why) on my App service.
Thanks
VNET integration is not available yet for Web App for Containers or App service on Linux. Please follow the UserVoice request for updates on when it will be supported.
https://feedback.azure.com/forums/169385-web-apps/suggestions/32534479--linux-enable-vnet-integration-for-app-service-on
I have a VM running SQL Server in Azure East US2. I also hosted a webapi as azure web app. Connection string used in webapi is being routed through internet gateway right now. I want to ensure that both of these services are hosted on same data center so that they communicate over LAN instead of internet gateway.
I was trying to setup a VNET and when I tried adding this VNET to webapi, it asks to setup VPN gateway. Why do I need to setup VPN gateway, are they not aware of being on same data center. Can't they be put on LAN without setting up VPN.
When you deploy both your VM and your Web App in Azure East US2 they land on the same geo-region. Please note that a lot of Azure Regions do have more than one facility (the thing you call Data Center), and you have no control over where exactly within a region (i.e. East US2) your resource will be deployed.
Now, if you want to talk to your SQL Server on an Azure VM from the Web App, you have to use VNet integraton. Because you are not deploying into a App Service Environment, you have to connect your web app to the VNet where your SQL Server is. The way to do this is by implicitly utilising a Point-to-Site VPN Connection between your web app and your VNet.
Do not worry, the whole process is automated and you do not have to deal with certificates and certificate roll-over, but there is a need for VPN Gateway. That's way you are being asked for the VPN Gateway.
But you should really consider using Azure SQL DB instead an SQL Server on VM.
I have an Azure function under an ExpressRoute subscription that is trying to connect to an on-prem database, but fails to do so.
Is it possible to use Azure functions within ExpressRoute?
Thanks!
An Azure Function can be deployed on an App Service Environment. The App Service Environment is deployed on your own VNET which can have access to on-prem resources via ExpressRoute.
If you don't want to pay for an App Service Environment, you can deploy your Function on a dedicated App Service Plan and then use Hybrid Connections to connect to on-prem, or integrate the Function App to your VNET and create a Site-to-Site VPN to on-premises. These last 2 options option, however, won't go through ExpressRoute.
All 3 options are described here. You just need to deploy your Azure Function to an App Service Plan to get same features as an App Service.
HTH
Not without setting up a dedicated router virtual appliance (e.g. a CiscoASA VM from the Azure marketplace). Microsoft will say "not supported", but we were able to get it working in this manner.
We are in process of moving our on-premises services to service fabric and planning to host it on Azure Service Fabric cluster. These service will require access to resources which are on-premises (corp network) and we currently can not move them.
What are the options we have? In past, I've used Hybrid connection for Azure web app but I'm not sure how this can be done for services hosted with Azure Service Fabric.
Your cluster runs on nodes in a VM scale set. The nodes are connected using a VNet. Regular VPN rules apply.
So Point to site, site to site and express route should all work.
You'll need to use ARM to configure a cluster to run in an existing vnet.