Revert "Remove sourcebuild"

This reverts commit 1fa2219.

Author: wtgodbe

.azure/pipelines/ci-public.yml

@@ -625,3 +625,17 @@ stages:
           path: artifacts/log/
           publishOnError: true
           includeForks: true
+
+  # Source build
+  - template: /eng/common/templates/job/source-build.yml
+    parameters:
+      platform:
+        name: 'Managed'
+        container: 'mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-net10.0-build-amd64'
+        buildScript: './eng/build.sh --publish --no-build-repo-tasks $(_PublishArgs) $(_InternalRuntimeDownloadArgs)'
+        skipPublishValidation: true
+        jobProperties:
+          timeoutInMinutes: 120
+          variables:
+            # Log environment variables in binary logs to ease debugging
+            MSBUILDLOGALLENVIRONMENTVARIABLES: true

.azure/pipelines/ci.yml

@@ -670,6 +670,21 @@ extends:
                 publishOnError: true
                 includeForks: true
 
+      # Source build
+      - template: /eng/common/templates-official/job/source-build.yml@self
+        parameters:
+          enableInternalSources: true
+          platform:
+            name: 'Managed'
+            container: 'mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream8'
+            buildScript: './eng/build.sh --publish --no-build-repo-tasks $(_PublishArgs) $(_InternalRuntimeDownloadArgs)'
+            skipPublishValidation: true
+            jobProperties:
+              timeoutInMinutes: 120
+              variables:
+                # Log environment variables in binary logs to ease debugging
+                MSBUILDLOGALLENVIRONMENTVARIABLES: true
+
       - ${{ if eq(variables.enableSourceIndex, 'true') }}:
         - template: /eng/common/templates-official/job/source-index-stage1.yml@self
           parameters: