fix: Remove KeepAlive socket option (#1671)

Angelinsky7 · web-flow · commit 524bade459ad · 2026-03-24T10:31:44.000+01:00
diff --git a/src/Testcontainers/Containers/ResourceReaper.cs b/src/Testcontainers/Containers/ResourceReaper.cs
@@ -304,7 +304,8 @@ await Task.Delay(TimeSpan.FromSeconds(RetryTimeoutInSeconds), CancellationToken.
 
         using (var tcpClient = new TcpClient())
         {
-          tcpClient.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, true);
+          // On some plateform the connection fail with PlatformNotSupportedException: Sockets on this platform are invalid for use after a failed connection attempt.
+          // tcpClient.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, true);
           tcpClient.LingerState = DiscardAllPendingData;
 
           try

Original file line number	Diff line number	Diff line change
`@@ -304,7 +304,8 @@ await Task.Delay(TimeSpan.FromSeconds(RetryTimeoutInSeconds), CancellationToken.`
`304`	`304`
`305`	`305`	`using (var tcpClient = new TcpClient())`
`306`	`306`	`{`
`307`		`- tcpClient.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, true);`
	`307`	`+ // On some plateform the connection fail with PlatformNotSupportedException: Sockets on this platform are invalid for use after a failed connection attempt.`
	`308`	`+ // tcpClient.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, true);`
`308`	`309`	`tcpClient.LingerState = DiscardAllPendingData;`
`309`	`310`
`310`	`311`	`try`