Log accessing test passes

DistTestCore/CodexLogs/CodexNodeLog.cs

@@ -0,0 +1,35 @@
+using Logging;
+using NUnit.Framework;
+
+namespace DistTestCore.CodexLogs
+{
+    public interface ICodexNodeLog
+    {
+        void AssertLogContains(string expectedString);
+    }
+
+    public class CodexNodeLog : ICodexNodeLog
+    {
+        private readonly LogFile logFile;
+
+        public CodexNodeLog(LogFile logFile)
+        {
+            this.logFile = logFile;
+        }
+
+        public void AssertLogContains(string expectedString)
+        {
+            using var file = File.OpenRead(logFile.FullFilename);
+            using var streamReader = new StreamReader(file);
+
+            var line = streamReader.ReadLine();
+            while (line != null)
+            {
+                if (line.Contains(expectedString)) return;
+                line = streamReader.ReadLine();
+            }
+
+            Assert.Fail($"Unable to find string '{expectedString}' in CodexNode log file {logFile.FilenameWithoutPath}");
+        }
+    }
+}

DistTestCore/CodexLogs/LogDownloadHandler.cs

@@ -0,0 +1,35 @@
+using KubernetesWorkflow;
+using Logging;
+
+namespace DistTestCore.CodexLogs
+{
+    public class LogDownloadHandler : ILogHandler
+    {
+        private readonly string description;
+        private readonly LogFile log;
+
+        public LogDownloadHandler(string description, LogFile log)
+        {
+            this.description = description;
+            this.log = log;
+        }
+
+        public CodexNodeLog CreateCodexNodeLog()
+        {
+            return new CodexNodeLog(log);
+        }
+
+        public void Log(Stream stream)
+        {
+            log.Write($"{description} -->> {log.FilenameWithoutPath}");
+            log.WriteRaw(description);
+            var reader = new StreamReader(stream);
+            var line = reader.ReadLine();
+            while (line != null)
+            {
+                log.WriteRaw(line);
+                line = reader.ReadLine();
+            }
+        }
+    }
+}

DistTestCore/CodexStarter.cs

@@ -1,5 +1,7 @@
 using DistTestCore.Codex;
+using DistTestCore.CodexLogs;
 using KubernetesWorkflow;
+using Nethereum.Merkle.Patricia;
 
 namespace DistTestCore
 {
@@ -37,6 +39,12 @@ namespace DistTestCore
             workflow.DeleteAllResources();
         }
 
+        public void DownloadLog(RunningContainer container, ILogHandler logHandler)
+        {
+            var workflow = CreateWorkflow();
+            workflow.DownloadContainerLog(container, logHandler);
+        }
+
         private StartupWorkflow CreateWorkflow()
         {
             return workflowCreator.CreateWorkflow();

DistTestCore/OnlineCodexNode.cs

@@ -1,4 +1,5 @@
 using DistTestCore.Codex;
+using DistTestCore.CodexLogs;
 using NUnit.Framework;
 
 namespace DistTestCore
@@ -9,7 +10,7 @@ namespace DistTestCore
         ContentId UploadFile(TestFile file);
         TestFile? DownloadContent(ContentId contentId);
         void ConnectToPeer(IOnlineCodexNode node);
-        //ICodexNodeLog DownloadLog();
+        ICodexNodeLog DownloadLog();
         //IMetricsAccess Metrics { get; }
         //IMarketplaceAccess Marketplace { get; }
     }
@@ -76,10 +77,10 @@ namespace DistTestCore
             Log($"Successfully connected to peer {peer.GetName()}.");
         }
 
-        //public ICodexNodeLog DownloadLog()
-        //{
-        //    return Group.DownloadLog(this);
-        //}
+        public ICodexNodeLog DownloadLog()
+        {
+            return lifecycle.DownloadLog(this);
+        }
 
         public string Describe()
         {

DistTestCore/TestLifecycle.cs

@@ -1,4 +1,5 @@
-using Logging;
+using DistTestCore.CodexLogs;
+using Logging;
 
 namespace DistTestCore
 {
@@ -20,5 +21,16 @@ namespace DistTestCore
             CodexStarter.DeleteAllResources();
             FileManager.DeleteAllTestFiles();
         }
+
+        public ICodexNodeLog DownloadLog(OnlineCodexNode node)
+        {
+            var subFile = Log.CreateSubfile();
+            var description = node.Describe();
+            var handler = new LogDownloadHandler(description, subFile);
+
+            CodexStarter.DownloadLog(node.CodexAccess.Container, handler);
+
+            return new CodexNodeLog(subFile);
+        }
     }
 }

KubernetesWorkflow/K8sController.cs

@@ -43,6 +43,12 @@ namespace KubernetesWorkflow
             WaitUntilPodOffline(pod.Name);
         }
 
+        public void DownloadPodLog(RunningPod pod, ContainerRecipe recipe, ILogHandler logHandler)
+        {
+            var stream = client.ReadNamespacedPodLog(pod.Name, K8sNamespace, recipe.Name);
+            logHandler.Log(stream);
+        }
+
         public void DeleteAllResources()
         {
             DeleteNamespace();

KubernetesWorkflow/StartupWorkflow.cs

@@ -34,6 +34,14 @@
             });
         }
 
+        public void DownloadContainerLog(RunningContainer container, ILogHandler logHandler)
+        {
+            K8s(controller =>
+            {
+                controller.DownloadPodLog(container.Pod, container.Recipe, logHandler);
+            });
+        }
+
         public void DeleteAllResources()
         {
             K8s(controller =>
@@ -72,6 +80,10 @@
             controller.Dispose();
             return result;
         }
+    }
 
+    public interface ILogHandler
+    {
+        void Log(Stream log);
     }
 }

Tests/BasicTests/SimpleTests.cs

@@ -1,4 +1,5 @@
 using DistTestCore;
+using DistTestCore.Codex;
 using KubernetesWorkflow;
 using NUnit.Framework;
 
@@ -63,6 +64,20 @@ namespace Tests.BasicTests
             PerformTwoClientTest(primary, secondary);
         }
 
+        [Test]
+        public void CodexLogExample()
+        {
+            var primary = SetupCodexNodes(1)
+                            .WithLogLevel(CodexLogLevel.Trace)
+                            .BringOnline()[0];
+
+            primary.UploadFile(GenerateTestFile(5.MB()));
+
+            var log = primary.DownloadLog();
+
+            log.AssertLogContains("Uploaded file");
+        }
+
         //[Test]
         //public void TwoMetricsExample()
         //{