You might remember me writing on how to warm up your App Service instances when moving between slots. The use of the applicationInitialization-element is implemented on nearly every IIS webserver nowadays and works great, until it doesn’t.
I’ve been working on a project which has been designed, as I’d like to call it, a distributed monolith. To give you an oversimplified overview, here’s what we have.
First off we have a single page web application which communicates directly to an ASP.
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Warming up your web applications and websites is something which we have been doing for quite some time now and will probably be doing for the next couple of years also. This warmup is necessary to ‘spin up’ your services, like the just-in-time compiler, your database context, caches, etc.
I’ve worked in several teams where we had solved the warming up of a web application in different ways. Running smoke-tests, pinging some endpoint on a regular basis, making sure the IIS application recycle timeout is set to infinite and some more creative solutions.
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You might remember me writing a post on how you can set up your site with SSL while using Let’s Encrypt and Azure App Services.
Well, as it goes, the same post applies for Azure Functions. You just have to do some extra work for it, but it’s not very hard.
Simon Pedersen, the author of the Azure Let’s Encrypt site extension, has done some work in explaining the steps on his GitHub wiki page.
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It has become increasingly important to have your site secured via some kind of certificate. Even your Google ranking is affected by it.
The main problem with SSL/TLS certificates is the fact most of them cost money. Now, I don’t have any problem with paying some money for something like a certificate, but it will cost quite a lot if I want to set this up for all of my sites & domains.
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Including a lot of files in your website can impact the performance of your site. Your browser needs to request all those files from the webserver(s) and download them individually. Luckily this fetching is pretty fast and your browser can do multiple requests at once. However, there is a maximum to the number of requests a browser can make, so if you include 100 external files, will probably be (relatively) slow.
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