/// <summary>
/// Create an SSH connection to a remote machine.
/// </summary>
/// <param name="remoteSSHConnectionString"></param>
/// <returns></returns>
/// <remarks>Should only get called by the _connection initalizer</remarks>
private async Task <SSHRecoveringConnection> CreateSSHConnectionTo(string remoteSSHConnectionString = null, Action <string> dumpLine = null)
{
// Use the default
remoteSSHConnectionString = remoteSSHConnectionString ?? _machine.RemoteSSHConnectionString;
Interlocked.Increment(ref NumberOfRecoveringConnections);
if (_connectionLock != null)
{
throw new InvalidOperationException("Connection lock has already been aquired. Interal error");
}
_connectionLock = await _gConnectionInterlockLimiter.LockAsync();
TraceHelpers.TraceInfo(25, $"CreateSSHConnectionTo: Aquired RemoteSSH Lock (free: {_gConnectionInterlockLimiter.CurrentCount})", opt: TraceEventType.Start);
// Create a recovering connection
return(new SSHRecoveringConnection(async() =>
{
return await Policy
.Handle <SSHConnectFailureException>()
.WaitAndRetryAsync(new[] { TimeSpan.FromSeconds(10), TimeSpan.FromSeconds(10), TimeSpan.FromSeconds(60) })
.ExecuteAsync(async() =>
{
var c = new SSHConnectionTunnel(remoteSSHConnectionString);
Interlocked.Increment(ref NumberOfSSHTunnels);
if (_machine.ConfigureLines != null)
{
var logForError = new StringBuilder();
try
{
// Don't dump setup unless the user really wants to see it!
var localdumper = Environment.Verbose | Environment.CompileDebug
? dumpLine
: (Action <string>)null;
foreach (var line in _machine.ConfigureLines)
{
var rep = line.Replace("ROOTVersionNumber", ROOTVersionNumber);
await c.ExecuteLinuxCommandAsync(rep, processLine: s => RecordLine(logForError, s, localdumper));
}
}
catch (Exception e)
{
c.Dispose();
string errMsg = ReformatLog(logForError);
Trace.WriteLine($"Error making a SSH connection: {errMsg}");
throw new RemoteBashCommandFailureException($"Error making a SSH connection: {errMsg}", e);
}
}
return c;
});
}));
}
public async Task SSHTunnelAddTwo()
{
using (var t = new SSHConnectionTunnel(File.ReadLines("testMachineTwo.txt").First()))
{
var pid2 = await GetPID(t);
Assert.IsTrue(pid2 != "");
Assert.AreEqual(1, t.TunnelCount);
Console.WriteLine(pid2);
await t.ExecuteLinuxCommandAsync("export", l => Console.WriteLine(l));
}
}
