Publish nuget package to azure blob store (#1525)

Publish daily build NuGet package to Azure blob store for sharing among internal partners

tools/ci_build/github/azure-pipelines/nuget/templates/cpu.yml

@@ -158,10 +158,14 @@ jobs:
 - job: Publish_NuGet_Package_And_Report
   variables:
   - group: Dashboard_MySQL_Secret
-  condition: ${{ parameters.DoEsrp }}
   pool: 
     name: Hosted Windows 2019 with VS2019
+    # AzureFileCopy@3 task has some bug that it depends on a particular version of azure power shell, 
+    # which is not available in OnnxRuntime build VMs, but available in the latest hosted agents. 
+    # So, all the copy/publish jobs are being run on hosted agent
+    # TODO: install the desired azureps on our VMs or use later bugfixed version of AzureFileCopy   
     demands: azureps
+  condition: and (${{ parameters.DoEsrp }}, eq(variables['Build.SourceBranch'], 'refs/heads/master'))
   dependsOn:
   - NuGet_Test_Win
   - NuGet_Test_Linux
@@ -171,6 +175,16 @@ jobs:
   - template: ../../templates/set-version-number-variables-step.yml
   - template: upload-binary-sizes-from-nuget-package.yml
     parameters:
+      downloadPath: $(Build.BinariesDirectory)/nuget-artifact/final-package
       gitCommitHash: $(OnnxRuntimeGitCommitHashShort)  
 
+  - task: AzureFileCopy@3
+    displayName: 'Copy Signed NuGet Package to Blob Store'
+    condition: ne(variables['IsReleaseBuild'], 'true') # rlease build has a different package naming scheme
+    inputs:
+      sourcePath: '$(Build.BinariesDirectory)/nuget-artifact/final-package/Microsoft.ML.OnnxRuntime.$(OnnxRuntimeVersion)-dev-$(OnnxRuntimeGitCommitHashShort).nupkg'
+      azureSubscription: 'AIInfraBuildOnnxRuntimeOSS'
+      destination: azureBlob
+      storage: ortpackages
+      containerName: ortpackages
 

tools/ci_build/github/azure-pipelines/nuget/templates/upload-binary-sizes-from-nuget-package.yml

@@ -1,12 +1,13 @@
 parameters:
   gitCommitHash: ''
+  downloadPath: $(Build.BinariesDirectory)/nuget-artifact/final-package
 
 steps:
 - task: DownloadPipelineArtifact@0
   displayName: 'Download Pipeline Artifact - Signed NuGet Package'
   inputs:
     artifactName: 'drop-signed-nuget'
-    targetPath: '$(Build.BinariesDirectory)/nuget-artifact/final-package'
+    targetPath: '${{ parameters.downloadPath }}'
 
 - task: UsePythonVersion@0
   inputs:
@@ -26,7 +27,7 @@ steps:
   inputs:
     script: |
       echo changing directory to artifact download path
-      pushd $(Build.BinariesDirectory)\nuget-artifact\final-package
+      pushd "${{ parameters.downloadPath }}"
       echo processing nupkg
       FOR /R %%i IN (*.nupkg) do (
         echo processing %%~ni.nupkg