/
process.go
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/
process.go
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package resource // import "go.opentelemetry.io/otel/sdk/resource"
import (
"context"
"fmt"
"os"
"os/user"
"path/filepath"
"runtime"
semconv "go.opentelemetry.io/otel/semconv/v1.25.0"
)
type (
pidProvider func() int
executablePathProvider func() (string, error)
commandArgsProvider func() []string
ownerProvider func() (*user.User, error)
runtimeNameProvider func() string
runtimeVersionProvider func() string
runtimeOSProvider func() string
runtimeArchProvider func() string
)
var (
defaultPidProvider pidProvider = os.Getpid
defaultExecutablePathProvider executablePathProvider = os.Executable
defaultCommandArgsProvider commandArgsProvider = func() []string { return os.Args }
defaultOwnerProvider ownerProvider = user.Current
defaultRuntimeNameProvider runtimeNameProvider = func() string {
if runtime.Compiler == "gc" {
return "go"
}
return runtime.Compiler
}
defaultRuntimeVersionProvider runtimeVersionProvider = runtime.Version
defaultRuntimeOSProvider runtimeOSProvider = func() string { return runtime.GOOS }
defaultRuntimeArchProvider runtimeArchProvider = func() string { return runtime.GOARCH }
)
var (
pid = defaultPidProvider
executablePath = defaultExecutablePathProvider
commandArgs = defaultCommandArgsProvider
owner = defaultOwnerProvider
runtimeName = defaultRuntimeNameProvider
runtimeVersion = defaultRuntimeVersionProvider
runtimeOS = defaultRuntimeOSProvider
runtimeArch = defaultRuntimeArchProvider
)
func setDefaultOSProviders() {
setOSProviders(
defaultPidProvider,
defaultExecutablePathProvider,
defaultCommandArgsProvider,
)
}
func setOSProviders(
pidProvider pidProvider,
executablePathProvider executablePathProvider,
commandArgsProvider commandArgsProvider,
) {
pid = pidProvider
executablePath = executablePathProvider
commandArgs = commandArgsProvider
}
func setDefaultRuntimeProviders() {
setRuntimeProviders(
defaultRuntimeNameProvider,
defaultRuntimeVersionProvider,
defaultRuntimeOSProvider,
defaultRuntimeArchProvider,
)
}
func setRuntimeProviders(
runtimeNameProvider runtimeNameProvider,
runtimeVersionProvider runtimeVersionProvider,
runtimeOSProvider runtimeOSProvider,
runtimeArchProvider runtimeArchProvider,
) {
runtimeName = runtimeNameProvider
runtimeVersion = runtimeVersionProvider
runtimeOS = runtimeOSProvider
runtimeArch = runtimeArchProvider
}
func setDefaultUserProviders() {
setUserProviders(defaultOwnerProvider)
}
func setUserProviders(ownerProvider ownerProvider) {
owner = ownerProvider
}
type (
processPIDDetector struct{}
processExecutableNameDetector struct{}
processExecutablePathDetector struct{}
processCommandArgsDetector struct{}
processOwnerDetector struct{}
processRuntimeNameDetector struct{}
processRuntimeVersionDetector struct{}
processRuntimeDescriptionDetector struct{}
)
// Detect returns a *Resource that describes the process identifier (PID) of the
// executing process.
func (processPIDDetector) Detect(ctx context.Context) (*Resource, error) {
return NewWithAttributes(semconv.SchemaURL, semconv.ProcessPID(pid())), nil
}
// Detect returns a *Resource that describes the name of the process executable.
func (processExecutableNameDetector) Detect(ctx context.Context) (*Resource, error) {
executableName := filepath.Base(commandArgs()[0])
return NewWithAttributes(semconv.SchemaURL, semconv.ProcessExecutableName(executableName)), nil
}
// Detect returns a *Resource that describes the full path of the process executable.
func (processExecutablePathDetector) Detect(ctx context.Context) (*Resource, error) {
executablePath, err := executablePath()
if err != nil {
return nil, err
}
return NewWithAttributes(semconv.SchemaURL, semconv.ProcessExecutablePath(executablePath)), nil
}
// Detect returns a *Resource that describes all the command arguments as received
// by the process.
func (processCommandArgsDetector) Detect(ctx context.Context) (*Resource, error) {
return NewWithAttributes(semconv.SchemaURL, semconv.ProcessCommandArgs(commandArgs()...)), nil
}
// Detect returns a *Resource that describes the username of the user that owns the
// process.
func (processOwnerDetector) Detect(ctx context.Context) (*Resource, error) {
owner, err := owner()
if err != nil {
return nil, err
}
return NewWithAttributes(semconv.SchemaURL, semconv.ProcessOwner(owner.Username)), nil
}
// Detect returns a *Resource that describes the name of the compiler used to compile
// this process image.
func (processRuntimeNameDetector) Detect(ctx context.Context) (*Resource, error) {
return NewWithAttributes(semconv.SchemaURL, semconv.ProcessRuntimeName(runtimeName())), nil
}
// Detect returns a *Resource that describes the version of the runtime of this process.
func (processRuntimeVersionDetector) Detect(ctx context.Context) (*Resource, error) {
return NewWithAttributes(semconv.SchemaURL, semconv.ProcessRuntimeVersion(runtimeVersion())), nil
}
// Detect returns a *Resource that describes the runtime of this process.
func (processRuntimeDescriptionDetector) Detect(ctx context.Context) (*Resource, error) {
runtimeDescription := fmt.Sprintf(
"go version %s %s/%s", runtimeVersion(), runtimeOS(), runtimeArch())
return NewWithAttributes(
semconv.SchemaURL,
semconv.ProcessRuntimeDescription(runtimeDescription),
), nil
}