Installing .NET 9 on a build agent is FAAAAST!

I did not realise just how easy and quick it is to install .NET 9 support on a build server, Cloudflare's build servers to be specific. It's so fast, and easy, that I thought it worth dropping this little nugget as a blog post.

If your build server doesnt support .NET, or .NET 9, take a look at how easy it is to install!

So this is an extract from my build.sh script, that's in one of my Cloudflare worker projects;

#!/bin/sh
curl -sSL https://dot.net/v1/dotnet-install.sh > dotnet-install.sh
chmod +x dotnet-install.sh
./dotnet-install.sh -c 9.0 -InstallDir ./dotnet
./dotnet/dotnet --version

Here's a copy of one of my actual logs of it being installed from this build.sh

1:46:19.787	dotnet-install: Attempting to download using aka.ms link https://builds.dotnet.microsoft.com/dotnet/Sdk/9.0.200/dotnet-sdk-9.0.200-linux-x64.tar.gz
11:46:21.107	dotnet-install: Remote file https://builds.dotnet.microsoft.com/dotnet/Sdk/9.0.200/dotnet-sdk-9.0.200-linux-x64.tar.gz size is 216232002 bytes.
11:46:21.108	dotnet-install: Extracting archive from https://builds.dotnet.microsoft.com/dotnet/Sdk/9.0.200/dotnet-sdk-9.0.200-linux-x64.tar.gz
11:46:26.031	dotnet-install: Downloaded file size is 216232002 bytes.
11:46:26.031	dotnet-install: The remote and local file sizes are equal.
11:46:26.101	dotnet-install: Installed version is 9.0.200
11:46:26.120	dotnet-install: Adding to current process PATH: `/opt/buildhome/repo/dotnet`. Note: This change will be visible only when sourcing script.
11:46:26.120	dotnet-install: Note that the script does not resolve dependencies during installation.
11:46:26.120	dotnet-install: To check the list of dependencies, go to https://learn.microsoft.com/dotnet/core/install, select your operating system and check the "Dependencies" section.
11:46:26.120	dotnet-install: Installation finished successfully.
11:46:26.290	9.0.200
11:46:26.307	Updated version: e3ef8e7
11:46:26.438	
11:46:26.440	Welcome to .NET 9.0!

.NET 9 installs in 7 seconds!

That's just WOW! : Also, this wasn't some Project DIGITS nVidia super server, this was a bog standard 100% free Cloudflare free worker build agent. I'm not gonna lie ..that's cheap and cheery ... 7 seconds.

Ok, letting that sink in for a bit. 😵‍💫 ❤️ 🕺🏼