public static async System.Threading.Tasks.Task WaitForServiceToStart(this ECSHelper ecs, string cluster, string serviceName, int timeout, int delay = 2500)
{
var services = await((cluster.IsNullOrEmpty()) ? ecs.ListServicesAsync() : ecs.ListServicesAsync(cluster));
services = services.Where(x => ((serviceName.StartsWith("arn:")) ? x.ARN == serviceName : x.ARN.EndsWith($":service/{serviceName}")));
if (services?.Count() != 1)
{
throw new Exception($"Could not find service '{serviceName}' for cluster: '{cluster}' or found more then one matching result (In such case use ARN insted of serviceName, or specify cluster) [{services?.Count()}].");
}
var service = services.First();
var tt = new TickTimeout(timeout, TickTime.Unit.s, Enabled: true);
while (!tt.IsTriggered)
{
var serviceDescription = await ecs.DescribeServicesAsync(service.Cluster, new string[] { service.ARN });
if (serviceDescription.IsNullOrEmpty())
{
throw new Exception($"Could not find or describe service: '{service.ARN}' for the cluster '{service.Cluster}'.");
}
var result = serviceDescription.First();
if (result.DesiredCount == result.RunningCount)
{
return; //desired count reached
}
await System.Threading.Tasks.Task.Delay(delay);
}
throw new Exception($"Timeout '{timeout}' [s], service: '{service.ARN}' could not reach its desired count in time.");
}
public static async System.Threading.Tasks.Task DestroyService(this ECSHelper ecs, string cluster, string serviceName, bool throwIfNotFound = true, int drainingTimeout = 5 *60 *1000)
{
var services = await((cluster.IsNullOrEmpty()) ? ecs.ListServicesAsync() : ecs.ListServicesAsync(cluster, throwIfNotFound: throwIfNotFound));
services = services?.Where(x => ((serviceName.StartsWith("arn:")) ? x.ARN == serviceName : x.ARN.EndsWith($":service/{serviceName}")));
if (!throwIfNotFound && (services?.Count() ?? 0) == 0)
{
return;
}
if (services?.Count() != 1)
{
throw new Exception($"Could not find service '{serviceName}' for cluster: '{cluster}' or found more then one matching result (In such case use ARN insted of serviceName, or specify cluster) [{services?.Count()}].");
}
var service = services.First();
var tasks = await ecs.ListTasksAsync(service.Cluster, service.ARN);
if ((tasks?.Count() ?? 0) != 0)
{
await ecs.StopTasksAsync(arns : tasks, cluster : service.Cluster);
}
await ecs.UpdateServiceAsync(desiredCount : 0, arns : service.ARN, cluster : service.Cluster);
await ecs.DeleteServiceAsync(cluster : service.Cluster, arns : service.ARN);
//ensure service is in draining state
await System.Threading.Tasks.Task.Delay(1000);
string status = null;
var sw = Stopwatch.StartNew();
//ensure service is not in draining state before finishing
while ((status = ((await ecs.DescribeServicesAsync(cluster: cluster, services: new string[] { serviceName })).FirstOrDefault())?.Status) == "DRAINING")
{
if (sw.ElapsedMilliseconds > drainingTimeout)
{
throw new Exception($"Could not drain the service '{serviceName}' for cluster: '{cluster}', elapsed {sw.ElapsedMilliseconds}/{drainingTimeout} [ms].");
}
await System.Threading.Tasks.Task.Delay(1000);
}
}