Fallback logic

dist/setup/index.js

@@ -71264,7 +71264,13 @@ class DotnetVersionResolver {
                 allowRetries: true,
                 maxRetries: 3
             });
-            const response = yield httpClient.getJson(DotnetVersionResolver.DotNetCoreIndexUrl);
+            let response;
+            try {
+                response = yield httpClient.getJson(DotnetVersionResolver.DotNetCoreIndexUrl);
+            }
+            catch (error) {
+                response = yield httpClient.getJson(DotnetVersionResolver.DotnetCoreIndexFallbackUrl);
+            }
             const result = response.result || {};
             const releasesInfo = result['releases-index'];
             const releaseInfo = releasesInfo.find(info => {
@@ -71280,6 +71286,7 @@ class DotnetVersionResolver {
 }
 exports.DotnetVersionResolver = DotnetVersionResolver;
 DotnetVersionResolver.DotNetCoreIndexUrl = 'https://builds.dotnet.microsoft.com/dotnet/release-metadata/releases-index.json';
+DotnetVersionResolver.DotnetCoreIndexFallbackUrl = 'https://dotnetcli.azureedge.net/dotnet/release-metadata/releases-index.json';
 class DotnetCoreInstaller {
     constructor(version, quality) {
         this.version = version;

src/installer.ts

@@ -101,9 +101,18 @@ export class DotnetVersionResolver {
       allowRetries: true,
       maxRetries: 3
     });
-    const response = await httpClient.getJson<any>(
-      DotnetVersionResolver.DotNetCoreIndexUrl
-    );
+
+    let response;
+    try {
+      response = await httpClient.getJson<any>(
+        DotnetVersionResolver.DotNetCoreIndexUrl
+      );
+    } catch (error) {
+      response = await httpClient.getJson<any>(
+        DotnetVersionResolver.DotnetCoreIndexFallbackUrl
+      );
+    }
+
     const result = response.result || {};
     const releasesInfo: any[] = result['releases-index'];
 
@@ -123,6 +132,10 @@ export class DotnetVersionResolver {
 
   static DotNetCoreIndexUrl =
     'https://builds.dotnet.microsoft.com/dotnet/release-metadata/releases-index.json';
+
+  static DotnetCoreIndexFallbackUrl =
+    'https://dotnetcli.azureedge.net/dotnet/release-metadata/releases-index.json';
+
 }
 
 export class DotnetCoreInstaller {