internal static IEnumerable <DockerContainerInstance> GetLocalDockerContainers(string hostname, out int totalContainers) { totalContainers = 0; int containerCount = 0; List <DockerContainerInstance> containers = new List <DockerContainerInstance>(); DockerCommandSettings settings = new DockerCommandSettings(hostname, false); settings.SetCommand(dockerPSCommand, dockerPSArgs); RunDockerCommand(settings, delegate(string args) { if (args.Trim()[0] == '{') { if (DockerContainerInstance.TryCreate(args, out DockerContainerInstance containerInstance)) { containers.Add(containerInstance); } containerCount++; } }); totalContainers = containerCount; return(containers); }
internal static IEnumerable <DockerContainerInstance> GetRemoteDockerContainers(IConnection connection, string hostname, out int totalContainers) { totalContainers = 0; SSHConnection sshConnection = connection as SSHConnection; List <string> outputLines = new List <string>(); StringBuilder errorSB = new StringBuilder(); if (sshConnection == null) { return(null); } List <DockerContainerInstance> containers = new List <DockerContainerInstance>(); DockerCommandSettings settings = new DockerCommandSettings(hostname, true); settings.SetCommand(dockerPSCommand, dockerPSArgs); RemoteCommandRunner commandRunner = new RemoteCommandRunner(settings, sshConnection, handleRawOutput: false); ManualResetEvent resetEvent = new ManualResetEvent(false); int exitCode = 0; commandRunner.ErrorOccured += ((sender, args) => { errorSB.Append(args); }); commandRunner.Closed += ((sender, args) => { exitCode = args; resetEvent.Set(); }); commandRunner.OutputReceived += ((sender, line) => { if (!string.IsNullOrWhiteSpace(line)) { Debug.Assert(line.IndexOf('\n') < 0, "Why does `line` have embedded newline characters?"); // If it isn't json, assume its an error message if (line.Trim()[0] != '{') { errorSB.Append(line); } outputLines.Add(line); } }); commandRunner.Start(); bool cancellationRequested = false; VS.VSOperationWaiter.Wait(UIResources.QueryingForContainersMessage, false, (cancellationToken) => { while (!resetEvent.WaitOne(2000) && !cancellationToken.IsCancellationRequested) { } cancellationRequested = cancellationToken.IsCancellationRequested; }); if (!cancellationRequested) { if (exitCode != 0) { // if the exit code is not zero, then the output we received possibly is the error message string exceptionMessage = UIResources.CommandExecutionErrorWithExitCodeFormat.FormatCurrentCultureWithArgs( "{0} {1}".FormatInvariantWithArgs(settings.Command, settings.CommandArgs), exitCode, errorSB.ToString()); throw new CommandFailedException(exceptionMessage); } foreach (var item in outputLines) { if (DockerContainerInstance.TryCreate(item, out DockerContainerInstance containerInstance)) { containers.Add(containerInstance); } totalContainers++; } } return(containers); }
public static IEnumerable <DockerContainerInstance> GetLocalDockerContainers(string hostname, out int totalContainers) { totalContainers = 0; int containerCount = 0; List <DockerContainerInstance> containers = new List <DockerContainerInstance>(); DockerCommandSettings settings = new DockerCommandSettings(hostname, false); settings.SetCommand(dockerPSCommand, dockerPSArgs); LocalCommandRunner commandRunner = new LocalCommandRunner(settings); StringBuilder errorSB = new StringBuilder(); int? exitCode = null; try { ManualResetEvent resetEvent = new ManualResetEvent(false); commandRunner.ErrorOccured += ((sender, args) => { if (!string.IsNullOrWhiteSpace(args.ErrorMessage)) { errorSB.AppendLine(args.ErrorMessage); } resetEvent.Set(); }); commandRunner.Closed += ((sender, args) => { exitCode = args; resetEvent.Set(); }); commandRunner.OutputReceived += ((sender, args) => { if (!string.IsNullOrWhiteSpace(args)) { if (args.Trim()[0] != '{') { // output isn't json, command Error errorSB.Append(args); } else { if (DockerContainerInstance.TryCreate(args, out DockerContainerInstance containerInstance)) { containers.Add(containerInstance); } containerCount++; } } }); commandRunner.Start(); bool cancellationRequested = false; VS.VSOperationWaiter.Wait(UIResources.QueryingForContainersMessage, false, (cancellationToken) => { while (!resetEvent.WaitOne(2000) && !cancellationToken.IsCancellationRequested) { } cancellationRequested = cancellationToken.IsCancellationRequested; }); if (!cancellationRequested) { // might need to throw an exception here too?? if (exitCode.GetValueOrDefault(-1) != 0) { // if the exit code is not zero, then the output we received possibly is the error message string exceptionMessage = UIResources.CommandExecutionErrorWithExitCodeFormat.FormatCurrentCultureWithArgs( "{0} {1}".FormatInvariantWithArgs(settings.Command, settings.CommandArgs), exitCode, errorSB.ToString()); throw new CommandFailedException(exceptionMessage); } if (errorSB.Length > 0) { throw new CommandFailedException(errorSB.ToString()); } totalContainers = containerCount; return(containers); } return(new List <DockerContainerInstance>()); } catch (Win32Exception ex) { // docker doesn't exist string errorMessage = UIResources.CommandExecutionErrorFormat.FormatCurrentCultureWithArgs(settings.CommandArgs, ex.Message); throw new CommandFailedException(errorMessage, ex); } }