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 bool TryGetContainerPlatform(string hostname, string containerName, out string containerPlatform)
{
containerPlatform = string.Empty;
string delegateContainerPlatform = string.Empty;
DockerCommandSettings settings = new DockerCommandSettings(hostname, false);
settings.SetCommand(dockerInspectCommand, string.Concat(dockerInspectArgs, containerName));
try
{
RunDockerCommand(settings, delegate(string args)
{
delegateContainerPlatform = args;
});
}
catch (CommandFailedException)
{
// only care whether call to obtain container platform succeeded
return(false);
}
containerPlatform = delegateContainerPlatform;
return(true);
}
internal static bool TryGetServerOS(string hostname, out string serverOS)
{
serverOS = string.Empty;
string delegateServerOS = string.Empty;
DockerCommandSettings settings = new DockerCommandSettings(hostname, false);
settings.SetCommand(dockerVersionCommand, dockerVersionArgs);
try
{
RunDockerCommand(settings, delegate(string args)
{
delegateServerOS = args;
});
}
catch (CommandFailedException)
{
// only care whether call to obtain server OS succeeded
return(false);
}
serverOS = delegateServerOS;
return(true);
}
// LCOW is the abbreviation for Linux Containers on Windows
internal static bool TryGetLCOW(string hostname, out bool lcow)
{
lcow = false;
bool delegateLCOW = false;
DockerCommandSettings settings = new DockerCommandSettings(hostname, false);
settings.SetCommand(dockerInfoCommand, dockerInfoArgs);
try
{
RunDockerCommand(settings, delegate(string args)
{
if (args.Contains("lcow"))
{
delegateLCOW = true;
}
});
}
catch (CommandFailedException)
{
// only care whether call to obtain LCOW succeeded
return(false);
}
lcow = delegateLCOW;
return(true);
}
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)
{
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
{
var containerInstance = DockerContainerInstance.Create(args);
if (containerInstance != null)
{
containers.Add(containerInstance);
}
}
}
});
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());
}
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);
}
}
internal static IEnumerable <IContainerInstance> GetRemoteDockerContainers(IConnection connection, string hostname)
{
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);
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, args) =>
{
if (!string.IsNullOrWhiteSpace(args))
{
// If it isn't json, assume its an error message
if (args.Trim()[0] != '{')
{
errorSB.Append(args);
}
// Unix line endings are '\n' so split on that for json items.
foreach (var item in args.Split('\n').ToList())
{
if (!string.IsNullOrWhiteSpace(item))
{
outputLines.Add(item);
}
}
}
});
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)
{
containers.Add(DockerContainerInstance.Create(item));
}
}
return(containers);
}