private IEnumerable <LocalProcess> GetManagedProcesses(
AgentConfiguration agentConfiguration)
{
if (agentConfiguration.Ports == null || agentConfiguration.Ports.Count == 0)
{
// No ports specified, use ephemeral ports
agentConfiguration.Ports =
new List <int>(Enumerable.Repeat(-1, agentConfiguration.ProcessCount));
}
if (agentConfiguration.Ports.Count != agentConfiguration.ProcessCount)
{
throw new ArgumentException(
"Number of ports must correspond to process count or be zero for ephemeral port usage");
}
for (int i = 0; i < agentConfiguration.ProcessCount; i++)
{
string hostName = agentConfiguration.HostName;
int port = agentConfiguration.Ports[i];
ChannelCredentials credentials =
GrpcUtils.CreateChannelCredentials(agentConfiguration.UseTls,
agentConfiguration.ClientCertificate);
var managedProcess = new LocalProcess(agentConfiguration.AgentType,
agentConfiguration.ExecutablePath, agentConfiguration.CommandLineArguments,
hostName, port, credentials)
{
EnvironmentVariables = agentConfiguration.EnvironmentVariables,
ClusterShutdownAction = agentConfiguration.ClusterShutdownAction,
RecyclingIntervalHours = GetRandomizedRecyclingInterval(agentConfiguration),
StartupWaitSeconds = agentConfiguration.StartupWaitSeconds
};
if (agentConfiguration.ServiceNames != null)
{
foreach (string serviceName in agentConfiguration.ServiceNames)
{
managedProcess.ServiceNames.Add(serviceName);
}
}
_logger.LogInformation(
"Agent has been configured with recycling interval {recyclingHours:F3}h. Process details: {process}",
managedProcess.RecyclingIntervalHours, managedProcess);
yield return(managedProcess);
}
}
private Channel GetChannel(ServiceLocation serviceLocation)
{
if (!_channelCache.TryGetValue(serviceLocation, out Channel channel))
{
ChannelCredentials channelCredentials = GrpcUtils.CreateChannelCredentials(
serviceLocation.UseTls, _clientCertificate);
channel = GrpcUtils.CreateChannel(serviceLocation.HostName, serviceLocation.Port,
channelCredentials);
if (!_channelCache.TryAdd(serviceLocation, channel))
{
// It's been added in the meanwhile by another request on another thread
channel = _channelCache[serviceLocation];
}
}
return(channel);
}