add runc shim support for sched core

In linux 5.14 and hopefully some backports, core scheduling allows processes to
be co scheduled within the same domain on SMT enabled systems.

The containerd impl sets the core sched domain when launching a shim. This
allows a clean way for each shim(container/pod) to be in its own domain and any
additional containers, (v2 pods) be be launched with the same domain as well as
any exec'd process added to the container.

kernel docs: https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/core-scheduling.html

Signed-off-by: Michael Crosby <michael@thepasture.io>

services/server/config/config.go

@@ -67,7 +67,9 @@ type Config struct {
 	Timeouts map[string]string `toml:"timeouts"`
 	// Imports are additional file path list to config files that can overwrite main config file fields
 	Imports []string `toml:"imports"`
-
+	// OpenTelemetry configuration
+	OpenTelemetry OpenTelemetryConfig `toml:"otel"`
+	// StreamProcessors configuration
 	StreamProcessors map[string]StreamProcessor `toml:"stream_processors"`
 }
 
@@ -165,6 +167,14 @@ type ProxyPlugin struct {
 	Address string `toml:"address"`
 }
 
+// OpenTelemetryConfig provides open telemetry configuration
+type OpenTelemetryConfig struct {
+	ServiceName        string  `toml:"service_name"`
+	ExporterName       string  `toml:"exporter_name"`
+	ExporterEndpoint   string  `toml:"exporter_endpoint"`
+	TraceSamplingRatio float64 `toml:"trace_sampling_ratio"`
+}
+
 // BoltConfig defines the configuration values for the bolt plugin, which is
 // loaded here, rather than back registered in the metadata package.
 type BoltConfig struct {