mirror of
https://github.com/gravitational/teleport.git
synced 2026-11-01 05:27:24 +08:00
rosstimothy
9b22af6a5e
* SSH request tracing Add tracing support for ssh global requests and channels. Wrappers for `ssh.Client`, `ssh.Channel`, and `ssh.NewChannel` provide a mechanism for tracing context to be propagated via a `context.Context`. In order to maintain backwards compatibility the ssh.Client wrapper tries to open a TracingChannel when constructed. Any servers that don't support tracing will reject the unknown channel. The client will only provide tracing context to servers which do NOT reject the TracingChannel request. In order to include pass tracing context along all ssh payloads are wrapped in an Envelope that includes the original payload AND any tracing context. Servers now try to unmarshal all payloads into said Envelope when processing messages. If there is an Envelope provided, a new span will be created and the original payload will be pass along to handlers. Part of #12241
74 lines
2.0 KiB
Go
74 lines
2.0 KiB
Go
// Copyright 2022 Gravitational, Inc
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package tracing
|
|
|
|
import (
|
|
"go.opentelemetry.io/otel"
|
|
"go.opentelemetry.io/otel/propagation"
|
|
oteltrace "go.opentelemetry.io/otel/trace"
|
|
)
|
|
|
|
// Option applies an option value for a Config.
|
|
type Option interface {
|
|
apply(*Config)
|
|
}
|
|
|
|
// Config stores tracing related properties to customize
|
|
// creating Tracers and extracting TraceContext
|
|
type Config struct {
|
|
TracerProvider oteltrace.TracerProvider
|
|
TextMapPropagator propagation.TextMapPropagator
|
|
}
|
|
|
|
// NewConfig returns a Config configured with all the passed Option.
|
|
func NewConfig(opts []Option) *Config {
|
|
c := &Config{
|
|
TracerProvider: otel.GetTracerProvider(),
|
|
TextMapPropagator: otel.GetTextMapPropagator(),
|
|
}
|
|
for _, o := range opts {
|
|
o.apply(c)
|
|
}
|
|
return c
|
|
}
|
|
|
|
type tracerProviderOption struct{ tp oteltrace.TracerProvider }
|
|
|
|
func (o tracerProviderOption) apply(c *Config) {
|
|
if o.tp != nil {
|
|
c.TracerProvider = o.tp
|
|
}
|
|
}
|
|
|
|
// WithTracerProvider returns an Option to use the trace.TracerProvider when
|
|
// creating a trace.Tracer.
|
|
func WithTracerProvider(tp oteltrace.TracerProvider) Option {
|
|
return tracerProviderOption{tp: tp}
|
|
}
|
|
|
|
type propagatorOption struct{ p propagation.TextMapPropagator }
|
|
|
|
func (o propagatorOption) apply(c *Config) {
|
|
if o.p != nil {
|
|
c.TextMapPropagator = o.p
|
|
}
|
|
}
|
|
|
|
// WithTextMapPropagator returns an Option to use the propagation.TextMapPropagator when extracting
|
|
// and injecting trace context.
|
|
func WithTextMapPropagator(p propagation.TextMapPropagator) Option {
|
|
return propagatorOption{p: p}
|
|
}
|