Docs: Wire up onboarding URL for daily docs (#47410)

Author: danieljurek

eng/pipelines/docindex.yml

@@ -163,7 +163,9 @@ jobs:
           inputs:
             pwsh: true
             filePath: eng/common/scripts/Update-DocsMsPackages.ps1
-            arguments: -DocRepoLocation $(DocRepoLocation)
+            arguments: >-
+              -DocRepoLocation $(DocRepoLocation)
+              -PackageSourceOverride 'https://pkgs.dev.azure.com/azure-sdk/public/_packaging/azure-sdk-for-java/maven/v1'
           displayName: Update Docs Onboarding for Daily docs
 
         - task: Powershell@2

eng/scripts/docs/Docs-Onboarding.ps1

@@ -19,23 +19,25 @@ function Set-java-DocsPackageOnboarding($moniker, $metadata, $docRepoLocation, $
         Write-Error "No appropriate index for moniker $moniker"
     }
 
+    $packageDownloadUrl = 'https://repo1.maven.org/maven2'
+    if ($PackageSourceOverride) {
+        $packageDownloadUrl = $PackageSourceOverride
+    }
+
     $onboardedPackages = @()
-    foreach ($package in $metadata) { 
+    foreach ($package in $metadata) {
+
         $packageInfo = [ordered]@{
             packageArtifactId = $package.Name
             packageGroupId = $package.Group
             packageVersion = $package.Version
-            
-            # packageDownloadUrl is required by docs build and other values are
-            # rejected. This is a temporary workaround until the docs build
-            # supports more package stores.
-            packageDownloadUrl = 'https://repo1.maven.org/maven2'
+            packageDownloadUrl = $packageDownloadUrl
         }
 
         # Add items from 'DocsCiConfigProperties' into onboarding info. If a
         # property already exists, it will be overwritten.
-        if ($package.ContainsKey('DocsCiConfigProperties')) { 
-            foreach ($key in $package['DocsCiConfigProperties'].Keys) { 
+        if ($package.ContainsKey('DocsCiConfigProperties')) {
+            foreach ($key in $package['DocsCiConfigProperties'].Keys) {
                 $packageInfo[$key] = $package['DocsCiConfigProperties'][$key]
             }
         }