Update SB CI to alpine 3.20 (#42119)

Author: MichaelSimons

eng/pipelines/templates/stages/vmr-build.yml

@@ -125,14 +125,14 @@ stages:
       - template: ../jobs/vmr-build.yml
         parameters:
           # Changing the build name requires updating the referenced name in the source-build-sdk-diff-tests.yml pipeline
-          buildName: ${{ format('{0}_Offline_PreviousSourceBuiltSdk', variables.alpineName) }}
+          buildName: ${{ format('{0}_Offline_PreviousSourceBuiltSdk', variables.alpinePreviousName) }}
           isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
           vmrBranch: ${{ variables.VmrBranch }}
           architecture: x64
-          artifactsRid: ${{ variables.alpineX64Rid }}
+          artifactsRid: ${{ variables.alpinePreviousX64Rid }}
           pool: ${{ parameters.pool_Linux }}
-          container: ${{ variables.alpineContainer }}
-          extraProperties: /p:TargetRID=${{ variables.alpineX64Rid }}
+          container: ${{ variables.alpinePreviousContainer }}
+          extraProperties: /p:TargetRID=${{ variables.alpinePreviousX64Rid }}
           buildFromArchive: false            # 🚫
           buildSourceOnly: true              # ✅
           enablePoison: true                 # ✅
@@ -166,13 +166,13 @@ stages:
         - template: ../jobs/vmr-build.yml
           parameters:
             # Changing the build name requires updating the referenced name in the source-build-sdk-diff-tests.yml pipeline
-            buildName: ${{ format('{0}_Online_MsftSdk', variables.alpineName) }}
+            buildName: ${{ format('{0}_Online_MsftSdk', variables.alpineLatestName) }}
             isBuiltFromVmr: ${{ parameters.isBuiltFromVmr }}
             vmrBranch: ${{ variables.VmrBranch }}
             architecture: x64
             pool: ${{ parameters.pool_Linux }}
-            container: ${{ variables.alpineContainer }}
-            extraProperties: /p:TargetRID=${{ variables.alpineX64Rid }}
+            container: ${{ variables.alpineLatestContainer }}
+            extraProperties: /p:TargetRID=${{ variables.alpineLatestX64Rid }}
             buildFromArchive: false            # 🚫
             buildSourceOnly: true              # ✅
             enablePoison: false                # 🚫

eng/pipelines/templates/variables/vmr-build.yml

@@ -14,7 +14,9 @@ variables:
 
 - name: almaLinuxContainer
   value: mcr.microsoft.com/dotnet-buildtools/prereqs:almalinux-8-source-build
-- name: alpineContainer
+- name: alpineLatestContainer
+  value: mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.20-withnode
+- name: alpinePreviousContainer
   value: mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.19-WithNode
 - name: centOSStreamContainer
   value: mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream9
@@ -47,7 +49,9 @@ variables:
 
 - name: almaLinuxName
   value: AlmaLinux8
-- name: alpineName
+- name: alpineLatestName
+  value: Alpine320
+- name: alpinePreviousName
   value: Alpine319
 - name: centOSStreamName
   value: CentOSStream9
@@ -58,7 +62,9 @@ variables:
 
 - name: almaLinuxX64Rid
   value: almalinux.8-x64
-- name: alpineX64Rid
+- name: alpineLatestX64Rid
+  value: alpine.3.20-x64
+- name: alpinePreviousX64Rid
   value: alpine.3.19-x64
 - name: centOSStreamX64Rid
   value: centos.9-x64

src/SourceBuild/content/eng/pipelines/source-build-sdk-diff-tests.yml

@@ -58,8 +58,8 @@ jobs:
 
 - template: templates/jobs/sdk-diff-tests.yml
   parameters:
-    buildName: ${{ format('{0}_Online_MsftSdk', variables.alpineName) }}
-    targetRid: ${{ variables.alpineX64Rid }}
+    buildName: ${{ format('{0}_Online_MsftSdk', variables.alpineLatestName) }}
+    targetRid: ${{ variables.alpineLatestX64Rid }}
     architecture: x64
     dotnetDotnetRunId: ${{ parameters.dotnetDotnetRunId }}