public object Execute(ExecutorContext context)
{
var cmdletContext = context as CmdletContext;
// create request
var request = new Amazon.ECS.Model.DescribeServicesRequest();
if (cmdletContext.Cluster != null)
{
request.Cluster = cmdletContext.Cluster;
}
if (cmdletContext.Include != null)
{
request.Include = cmdletContext.Include;
}
if (cmdletContext.Service != null)
{
request.Services = cmdletContext.Service;
}
CmdletOutput output;
// issue call
var client = Client ?? CreateClient(_CurrentCredentials, _RegionEndpoint);
try
{
var response = CallAWSServiceOperation(client, request);
object pipelineOutput = null;
pipelineOutput = cmdletContext.Select(response, this);
output = new CmdletOutput
{
PipelineOutput = pipelineOutput,
ServiceResponse = response
};
}
catch (Exception e)
{
output = new CmdletOutput {
ErrorResponse = e
};
}
return(output);
}
/// <summary>
/// Initiates the asynchronous execution of the DescribeServices operation.
/// </summary>
///
/// <param name="request">Container for the necessary parameters to execute the DescribeServices operation.</param>
/// <param name="cancellationToken">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
/// <returns>The task object representing the asynchronous operation.</returns>
public Task<DescribeServicesResponse> DescribeServicesAsync(DescribeServicesRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new DescribeServicesRequestMarshaller();
var unmarshaller = DescribeServicesResponseUnmarshaller.Instance;
return InvokeAsync<DescribeServicesRequest,DescribeServicesResponse>(request, marshaller,
unmarshaller, cancellationToken);
}
/// <summary>
/// Describes the specified services running in your cluster.
/// </summary>
/// <param name="request">Container for the necessary parameters to execute the DescribeServices service method.</param>
///
/// <returns>The response from the DescribeServices service method, as returned by ECS.</returns>
/// <exception cref="Amazon.ECS.Model.ClientException">
/// These errors are usually caused by something the client did, such as use an action
/// or resource on behalf of a user that doesn't have permission to use the action or
/// resource, or specify an identifier that is not valid.
/// </exception>
/// <exception cref="Amazon.ECS.Model.ClusterNotFoundException">
/// The specified cluster could not be found. You can view your available clusters with
/// <a>ListClusters</a>. Amazon ECS clusters are region-specific.
/// </exception>
/// <exception cref="Amazon.ECS.Model.InvalidParameterException">
/// The specified parameter is invalid. Review the available parameters for the API request.
/// </exception>
/// <exception cref="Amazon.ECS.Model.ServerException">
/// These errors are usually caused by a server-side issue.
/// </exception>
public DescribeServicesResponse DescribeServices(DescribeServicesRequest request)
{
var marshaller = new DescribeServicesRequestMarshaller();
var unmarshaller = DescribeServicesResponseUnmarshaller.Instance;
return Invoke<DescribeServicesRequest,DescribeServicesResponse>(request, marshaller, unmarshaller);
}
/// <summary>
/// Initiates the asynchronous execution of the DescribeServices operation.
/// </summary>
///
/// <param name="request">Container for the necessary parameters to execute the DescribeServices operation on AmazonECSClient.</param>
/// <param name="callback">An AsyncCallback delegate that is invoked when the operation completes.</param>
/// <param name="state">A user-defined state object that is passed to the callback procedure. Retrieve this object from within the callback
/// procedure using the AsyncState property.</param>
///
/// <returns>An IAsyncResult that can be used to poll or wait for results, or both; this value is also needed when invoking EndDescribeServices
/// operation.</returns>
public IAsyncResult BeginDescribeServices(DescribeServicesRequest request, AsyncCallback callback, object state)
{
var marshaller = new DescribeServicesRequestMarshaller();
var unmarshaller = DescribeServicesResponseUnmarshaller.Instance;
return BeginInvoke<DescribeServicesRequest>(request, marshaller, unmarshaller,
callback, state);
}
private Amazon.ECS.Model.DescribeServicesResponse CallAWSServiceOperation(IAmazonECS client, Amazon.ECS.Model.DescribeServicesRequest request)
{
Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "Amazon EC2 Container Service", "DescribeServices");
try
{
#if DESKTOP
return(client.DescribeServices(request));
#elif CORECLR
return(client.DescribeServicesAsync(request).GetAwaiter().GetResult());
#else
#error "Unknown build edition"
#endif
}
catch (AmazonServiceException exc)
{
var webException = exc.InnerException as System.Net.WebException;
if (webException != null)
{
throw new Exception(Utils.Common.FormatNameResolutionFailureMessage(client.Config, webException.Message), webException);
}
throw;
}
}
private async Task<bool> PerformRollingServiceDeployment(
string cluster, string serviceName, string taskRevision)
{
var describeRequest = new DescribeServicesRequest
{
Cluster = cluster,
Services = new List<string> { serviceName}
};
var originalService = (await this.ECSClient.DescribeServicesAsync(describeRequest)).Services[0];
int totalTasks = originalService.DesiredCount;
Console.Write("Reducing the number of tasks to {0} for existing definition...", totalTasks / 2);
await this.ECSClient.UpdateServiceAsync(new UpdateServiceRequest
{
Cluster = cluster,
Service = serviceName,
DesiredCount = totalTasks / 2
});
if (!await WaitTillUpdateServiceComplete(describeRequest))
{
Console.Error.WriteLine("\nECS Cluster did not reduce the number of existing tasks.");
return false;
}
Console.WriteLine("Complete");
Console.Write("Starting {0} task(s) with new definition...", totalTasks / 2);
await this.ECSClient.UpdateServiceAsync(new UpdateServiceRequest
{
Cluster = cluster,
Service = serviceName,
TaskDefinition = taskRevision,
DesiredCount = totalTasks / 2
});
if (!await WaitTillUpdateServiceComplete(describeRequest))
{
Console.Error.WriteLine("\nECS Cluster did not start tasks with new task definition.");
return false;
}
Console.WriteLine("Complete");
Console.Write("Starting remaining tasks with new task definition...");
await this.ECSClient.UpdateServiceAsync(new UpdateServiceRequest
{
Cluster = cluster,
Service = serviceName,
DesiredCount = totalTasks
});
if (!await WaitTillUpdateServiceComplete(describeRequest))
{
Console.Error.WriteLine("\nECS Cluster did not start tasks with new task definition.");
return false;
}
Console.WriteLine("Complete with {0} total tasks", totalTasks);
return true;
}
private async Task<bool> WaitTillUpdateServiceComplete(DescribeServicesRequest describeRequest)
{
long start = DateTime.Now.Ticks;
Service service = null;
do
{
Thread.Sleep(1000);
service = (await this.ECSClient.DescribeServicesAsync(describeRequest)).Services[0];
} while ( service.Deployments.Count != 1 &&
TimeSpan.FromTicks(DateTime.Now.Ticks - start).TotalMinutes < 2);
if(service.Deployments.Count != 1)
{
return false;
}
return true;
}
