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Support configuration of basic auth for OTLP HTTP exporter. #5997

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Merged
oleiade merged 1 commit into from
Jun 16, 2026
Merged

Support configuration of basic auth for OTLP HTTP exporter. #5997

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14 changes: 14 additions & 0 deletions internal/output/opentelemetry/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,12 @@ type Config struct {
// HTTPExporterURLPath sets the target URL path the OpenTelemetry Exporter
HTTPExporterURLPath null.String `json:"httpExporterURLPath" envconfig:"K6_OTEL_HTTP_EXPORTER_URL_PATH"`

// Username is the User for Basic Auth.
HTTPUsername null.String `json:"username" envconfig:"K6_OTEL_HTTP_EXPORTER_USERNAME"`

// Password is the Password for the Basic Auth.
HTTPPassword null.String `json:"password" envconfig:"K6_OTEL_HTTP_EXPORTER_PASSWORD"`

// GRPCExporterEndpoint sets the target endpoint the OpenTelemetry Exporter
// will connect to.
GRPCExporterEndpoint null.String `json:"grpcExporterEndpoint" envconfig:"K6_OTEL_GRPC_EXPORTER_ENDPOINT"`
Expand Down Expand Up @@ -187,6 +193,14 @@ func (cfg Config) Apply(v Config) Config {
cfg.Headers = v.Headers
}

if v.HTTPUsername.Valid {
cfg.HTTPUsername = v.HTTPUsername
}

if v.HTTPPassword.Valid {
cfg.HTTPPassword = v.HTTPPassword
}

return cfg
}

Expand Down
10 changes: 9 additions & 1 deletion internal/output/opentelemetry/config_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,8 @@ func TestConfig(t *testing.T) {
"K6_OTEL_TLS_CLIENT_CERTIFICATE": "client_cert_path",
"K6_OTEL_TLS_CLIENT_KEY": "client_key_path",
"K6_OTEL_HEADERS": "key1=value1,key2=value2",
"K6_OTEL_HTTP_EXPORTER_USERNAME": "foo",
"K6_OTEL_HTTP_EXPORTER_PASSWORD": "bar",
},
expectedConfig: Config{
ServiceName: null.NewString("foo", true),
Expand All @@ -86,6 +88,8 @@ func TestConfig(t *testing.T) {
TLSClientCertificate: null.NewString("client_cert_path", true),
TLSClientKey: null.NewString("client_key_path", true),
Headers: null.NewString("key1=value1,key2=value2", true),
HTTPUsername: null.NewString("foo", true),
HTTPPassword: null.NewString("bar", true),
},
},

Expand Down Expand Up @@ -124,7 +128,9 @@ func TestConfig(t *testing.T) {
`"tlsCertificate":"cert_path",` +
`"tlsClientCertificate":"client_cert_path",` +
`"tlsClientKey":"client_key_path",` +
`"headers":"key1=value1,key2=value2"` +
`"headers":"key1=value1,key2=value2",` +
`"username":"foo",` +
`"password":"bar"` +
`}`,
),
expectedConfig: Config{
Expand All @@ -143,6 +149,8 @@ func TestConfig(t *testing.T) {
TLSClientCertificate: null.NewString("client_cert_path", true),
TLSClientKey: null.NewString("client_key_path", true),
Headers: null.NewString("key1=value1,key2=value2", true),
HTTPUsername: null.NewString("foo", true),
HTTPPassword: null.NewString("bar", true),
},
},

Expand Down
7 changes: 7 additions & 0 deletions internal/output/opentelemetry/exporter.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ package opentelemetry
import (
"context"
"crypto/tls"
"encoding/base64"
"errors"
"fmt"
"net/url"
Expand Down Expand Up @@ -38,6 +39,12 @@ func getExporter(cfg Config) (metric.Exporter, error) {
}
}

// if at least valid user was configured, use basic auth
if cfg.HTTPUsername.Valid {
auth := []byte(cfg.HTTPUsername.String + ":" + cfg.HTTPPassword.String)
headers["Authorization"] = fmt.Sprintf("Basic %s", base64.StdEncoding.EncodeToString(auth))
}

@mstoykov mstoykov Jun 10, 2026

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should this require password as well and error if only one present. I guess this might need to happen earlier in the confiugraiton?


switch cfg.ExporterProtocol.String {
case grpcExporterProtocol:
return buildGRPCExporter(ctx, cfg, tlsConfig, headers)
Expand Down
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