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An example of Immutable application deployments to Azure App Service with F# Make

See the talk about this approach here: https://www.youtube.com/watch?v=_sZT0CpJ6Vo

Build, provision and deploy the project to an Azure WebApp

Install .NET Core 2.1 SDK (v2.1.300) or higher. This is the version that introduced global tools.

Install Azure CLI 2.0+, run az login and make sure you are on the correct subscription, then:

dotnet tool install fake-cli -g --version 5.1.0*
fake run build.fsx
fake run provision.fsx appName=yourWebAppName parameterSet=test

If you want provision.fsx to take a specific zip-file (it will default to the first appName*.zip it can find recursively), provide it as an argument: zip=./artifacts/Weather.1.0.0-beta4.zip

The deploy.fsx deployment script is made to be run from inside of Kudu and is packed inside the zip file during build.fsx. Kudu is triggered to launch deploy.fsx through the .deployment-file:

[config]
command = dotnet tool install fake-cli -g --version 5.1.0* & D:\local\UserProfile\.dotnet\tools\fake run deploy.fsx stageFolder=app/

Global tools on KUDU

Global tools are not in PATH by default inside the kudu sandbox:

PS D:\home\site\wwwroot> dotnet tool install fake-cli -g --version 5.1.0*
dotnet tool install fake-cli -g --version 5.1.0*
Tools directory 'D:\local\UserProfile\.dotnet\tools' is not currently on the PATH environment variable.

You can add the directory to the PATH by running the following command:

setx PATH "%PATH%;D:\local\UserProfile\.dotnet\tools"

You can invoke the tool using the following command: fake
Tool 'fake-cli' (version '5.1.0') was successfully installed.

We are not allowed to run the suggested command, but since the UserProfile folder is predictable we can simply run it from the hardcoded path inside of the .deployment-file.