container platform support

src/Terrabuild.Configuration.Tests/Project.fs

@@ -24,17 +24,20 @@ let parseProject() =
 
         let extDotnet =
             { Container = None
+              Platform = None
               Variables = Set.empty
               Script = None
               Defaults = Map [ "configuration", Expr.Variable "configuration" ] }        
         let extDocker =
             { Container = None
+              Platform = None
               Variables = Set [ "ARM_TENANT_ID" ]
               Script = None
               Defaults = Map [ "configuration", Expr.Variable "configuration"
                                "image", Expr.String "ghcr.io/magnusopera/dotnet-app" ] }
         let extDummy =
             { Container = None
+              Platform = None
               Variables = Set.empty
               Script = Some "dummy.fsx"
               Defaults = Map.empty }
@@ -97,6 +100,7 @@ let parseProject2() =
 
         let extDotnet =
             { Container = None
+              Platform = None
               Variables = Set.empty
               Script = None
               Defaults = Map.empty }        

src/Terrabuild.Configuration.Tests/Workspace.fs

@@ -29,16 +29,19 @@ let parseWorkspace() =
 
         let extDotnet =
             { Container = Some (Expr.String "mcr.microsoft.com/dotnet/sdk:8.0.101")
+              Platform = None
               Variables = Set.empty
               Script = None
               Defaults = Map [ "configuration", Expr.Variable "configuration" ] }
         let extDocker =
             { Container = None
+              Platform = None
               Variables = Set.empty
               Script = None
               Defaults = Map.empty }
         let extNpm =
             { Container = Some (Expr.String "node:20")
+              Platform = None
               Variables = Set.empty
               Script = Some "scripts/npm.fsx"
               Defaults = Map.empty }
@@ -107,13 +110,15 @@ let parseWorkspace2() =
 
         let extDotnet =
             { Container = Some (Expr.String "mcr.microsoft.com/dotnet/sdk:8.0.101")
+              Platform = None
               Variables = Set.empty
               Script = None
               Defaults = Map [ "configuration1", Expr.Function (Function.Item, [Expr.Variable "map"; Expr.String "toto"])
                                "configuration2", Expr.Function (Function.TryItem, [Expr.Variable "map"; Expr.String "titi"])
                                "configuration3", Expr.Function (Function.Replace, [Expr.String "toto titi"; Expr.String "toto"; Expr.String "titi"]) ] }
         let extDocker =
             { Container = None
+              Platform = None
               Variables = Set.empty
               Script = None
               Defaults = Map.empty }

src/Terrabuild.Configuration/AST.fs

@@ -5,12 +5,14 @@ open Errors
 [<RequireQualifiedAccess>]
 type ExtensionComponents =
     | Container of Expr
+    | Platform of Expr
     | Variables of string list
     | Script of string
     | Defaults of Map<string, Expr>
 
 type Extension = {
     Container: Expr option
+    Platform: Expr option
     Variables: string Set
     Script: string option
     Defaults: Map<string, Expr>
@@ -23,6 +25,12 @@ with
             | [value] -> Some value
             | _ -> TerrabuildException.Raise("multiple container declared")
 
+        let platform =
+            match components |> List.choose (function | ExtensionComponents.Platform value -> Some value | _ -> None) with
+            | [] -> None
+            | [value] -> Some value
+            | _ -> TerrabuildException.Raise("multiple platform declared")
+
         let variables =
             match components |> List.choose (function | ExtensionComponents.Variables value -> Some value | _ -> None) with
             | [] -> Set.empty
@@ -42,6 +50,7 @@ with
             | _ -> TerrabuildException.Raise("multiple defaults declared")
 
         name, { Container = container
+                Platform = platform
                 Variables = variables
                 Script = script
                 Defaults = defaults }