public async Task StartWorkerAsync(DFrameOptions options, int processCount, IServiceProvider provider, IFailSignal failSignal, CancellationToken cancellationToken)
{
_failSignal = failSignal;
Console.WriteLine($"scale out workers {_env.ScalingType}. {_ns}/{_env.Name} ({processCount} pods)");
// confirm kubernetes master can connect with cluster api.
Console.WriteLine($"checking cluster Endpoint health.");
var healthy = await _operations.TryConnectClusterEndpointAsync(_env.ClusterEndpointHealthRetry, TimeSpan.FromSeconds(_env.ClusterEndpointHealthInterval), cancellationToken);
if (!healthy)
{
Console.WriteLine($"cluster endpoint is unhealthy, quiting scale out.");
_failSignal.TrySetException(new KubernetesException("Could not connect to Kubernetes Cluster Endpoint. Make sure pod can communicate with cluster api."));
}
else
{
// create worker resource
switch (_env.ScalingType)
{
case ScalingType.Deployment:
await ScaleoutDeploymentAsync(processCount, options.WorkerConnectToHost, options.WorkerConnectToPort, cancellationToken);
break;
case ScalingType.Job:
await ScaleoutJobAsync(processCount, options.WorkerConnectToHost, options.WorkerConnectToPort, cancellationToken);
break;
default:
throw new ArgumentOutOfRangeException(nameof(ScalingType));
}
}
}
public async Task StartWorkerAsync(DFrameOptions options, int processCount, IServiceProvider provider, IFailSignal failSignal, CancellationToken cancellationToken)
{
this.failSignal = failSignal;
var location = Assembly.GetEntryAssembly().Location;
var cmd = $"dotnet \"{location}\" --worker-flag";
for (int i = 0; i < processCount; i++)
{
var startProcessTask = ProcessX.StartAsync(cmd);
WriteAll(startProcessTask);
}
}
public Task StartWorkerAsync(DFrameOptions options, int processCount, IServiceProvider provider, IFailSignal failSignal, CancellationToken cancellationToken)
{
this.failSignal = failSignal;
cancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
var tasks = new Task[processCount];
for (int i = 0; i < processCount; i++)
{
tasks[i] = Core(provider, options, cancellationTokenSource.Token);
}
this.tasks = Task.WhenAll(tasks);
return(Task.CompletedTask);
}
