move Kudu delays to configuration

Author: giuliov

.github/workflows/build-and-deploy.yml

@@ -23,6 +23,8 @@ jobs:
       CONFIGURATION: Release
       SONAR_ORG: 'tfsaggregator'
       SONAR_PROJECTKEY: 'tfsaggregator_aggregator-cli'
+      # list of TimeSpan controlling reading app logs from Kudu while running Integration tests
+      AGGREGATOR_KUDU_LOGRETRIEVE_ATTEMPTS: '0:0:30 0:1:00 0:1:30 0:2:00 0:3:00'
     outputs:
       dockerTag: 'v${{ steps.gitversion.outputs.fullSemVer }}'
       releaseTag: ${{ steps.get_git_tag.outputs.tag_name }}

src/aggregator-cli/Kudu/KuduApi.cs

@@ -112,16 +112,12 @@ internal async Task<string> ReadApplicationLogAsync(string functionName, int log
             using var client = new HttpClient();
             ListingEntry[] listingResult = null;
 
-            TimeSpan[] delay = {
-                new TimeSpan(0, 0,  5),
-                new TimeSpan(0, 0, 12),
-                new TimeSpan(0, 0, 25),
-                new TimeSpan(0, 0, 55),
-                new TimeSpan(0, 1, 30),
-            };
-            for (int attempt = 0; attempt < delay.Length; attempt++)
+            string delayList = Environment.GetEnvironmentVariable("AGGREGATOR_KUDU_LOGRETRIEVE_ATTEMPTS")
+                ?? "0:0:5 0:0:12 0:0:25 0:0:55 0:1:30";
+            var delay = delayList.Split(' ').Select(s => TimeSpan.Parse(s)).ToList();
+            for (int attempt = 0; attempt < delay.Count; attempt++)
             {
-                logger.WriteVerbose($"Listing attempt #{attempt + 1})");
+                logger.WriteVerbose($"Attempt #{attempt + 1} to retrieve listing");
                 using var listingRequest = await GetRequestAsync(HttpMethod.Get, $"{FunctionLogPath}/{functionName}/", cancellationToken);
                 var listingResponse = await client.SendAsync(listingRequest, cancellationToken);
                 var listingStream = await listingResponse.Content.ReadAsStreamAsync(cancellationToken);