forked from gravitational/teleport
/
exporter.go
78 lines (67 loc) · 2.4 KB
/
exporter.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
/*
* Teleport
* Copyright (C) 2023 Gravitational, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package tracing
import (
"context"
"errors"
"io"
"github.com/gravitational/trace"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
)
// NewExporter returns a new exporter that is configured per the provided Config.
func NewExporter(ctx context.Context, cfg Config) (sdktrace.SpanExporter, error) {
if err := cfg.CheckAndSetDefaults(); err != nil {
return nil, trace.Wrap(err)
}
traceClient, err := NewClient(cfg)
if err != nil {
return nil, trace.Wrap(err)
}
ctx, cancel := context.WithTimeout(ctx, cfg.DialTimeout)
defer cancel()
exporter, err := otlptrace.New(ctx, traceClient)
switch {
case errors.Is(err, context.DeadlineExceeded):
return nil, trace.ConnectionProblem(err, "failed to connect to tracing exporter %s: %v", cfg.ExporterURL, err)
case err != nil:
return nil, trace.NewAggregate(err, traceClient.Stop(context.Background()))
}
if cfg.Client == nil {
return exporter, nil
}
return &wrappedExporter{
exporter: exporter,
closer: cfg.Client,
}, nil
}
// wrappedExporter is a sdktrace.SpanExporter wrapper that is used to ensure that any
// io.Closer that are provided to NewExporter are closed when the Exporter is
// Shutdown.
type wrappedExporter struct {
closer io.Closer
exporter sdktrace.SpanExporter
}
// ExportSpans forwards the spans to the wrapped exporter.
func (w *wrappedExporter) ExportSpans(ctx context.Context, spans []sdktrace.ReadOnlySpan) error {
return w.exporter.ExportSpans(ctx, spans)
}
// Shutdown shuts down the wrapped exporter and closes the client.
func (w *wrappedExporter) Shutdown(ctx context.Context) error {
return trace.NewAggregate(w.exporter.Shutdown(ctx), w.closer.Close())
}