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resourcedetectionprocessor: use opentelemetry-go for host id detection #18740

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merged 2 commits into from
Jun 12, 2023
Merged

resourcedetectionprocessor: use opentelemetry-go for host id detection #18740

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a8b184e
resourcedetectionprocessor: use gopsutil for host id detection
Feb 17, 2023
0ef2f5c
feat: use opentelemetry sdk
May 16, 2023
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16 changes: 16 additions & 0 deletions .chloggen/drosiek-host-id-2.yaml
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@@ -0,0 +1,16 @@
# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
change_type: enhancement

# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
component: resourcedetectionprocessor

# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
note: "use opentelemetry-go library for `host.id` detection in the `system` detector"

# One or more tracking issues related to the change
issues: [18533]

# (Optional) One or more lines of additional information to render under the primary note.
# These lines will be padded with 2 spaces and then inserted directly into the document.
# Use pipe (|) for multiline entries.
subtext:
1 change: 0 additions & 1 deletion cmd/configschema/go.mod
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Expand Up @@ -199,7 +199,6 @@ require (
github.com/open-telemetry/opentelemetry-collector-contrib/receiver/windowsperfcountersreceiver v0.79.0 // indirect
github.com/open-telemetry/opentelemetry-collector-contrib/receiver/zipkinreceiver v0.79.0 // indirect
github.com/open-telemetry/opentelemetry-collector-contrib/receiver/zookeeperreceiver v0.79.0 // indirect
github.com/panta/machineid v1.0.2 // indirect
github.com/samber/lo v1.37.0 // indirect
github.com/shoenig/go-m1cpu v0.1.6 // indirect
github.com/signalfx/signalfx-agent/pkg/apm v0.0.0-20230214151822-6a6813cf5bf1 // indirect
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2 changes: 0 additions & 2 deletions cmd/configschema/go.sum
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1 change: 0 additions & 1 deletion cmd/otelcontribcol/go.mod
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Expand Up @@ -539,7 +539,6 @@ require (
github.com/openzipkin/zipkin-go v0.4.1 // indirect
github.com/outcaste-io/ristretto v0.2.1 // indirect
github.com/ovh/go-ovh v1.3.0 // indirect
github.com/panta/machineid v1.0.2 // indirect
github.com/patrickmn/go-cache v2.1.0+incompatible // indirect
github.com/paulmach/orb v0.9.0 // indirect
github.com/pelletier/go-toml v1.9.5 // indirect
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2 changes: 0 additions & 2 deletions cmd/otelcontribcol/go.sum
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1 change: 0 additions & 1 deletion exporter/datadogexporter/go.mod
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Expand Up @@ -139,7 +139,6 @@ require (
github.com/openshift/api v3.9.0+incompatible // indirect
github.com/openshift/client-go v0.0.0-20210521082421-73d9475a9142 // indirect
github.com/outcaste-io/ristretto v0.2.1 // indirect
github.com/panta/machineid v1.0.2 // indirect
github.com/patrickmn/go-cache v2.1.0+incompatible // indirect
github.com/philhofer/fwd v1.1.2 // indirect
github.com/pkg/errors v0.9.1 // indirect
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2 changes: 0 additions & 2 deletions exporter/datadogexporter/go.sum
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1 change: 0 additions & 1 deletion go.mod
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Expand Up @@ -523,7 +523,6 @@ require (
github.com/openzipkin/zipkin-go v0.4.1 // indirect
github.com/outcaste-io/ristretto v0.2.1 // indirect
github.com/ovh/go-ovh v1.3.0 // indirect
github.com/panta/machineid v1.0.2 // indirect
github.com/patrickmn/go-cache v2.1.0+incompatible // indirect
github.com/paulmach/orb v0.9.0 // indirect
github.com/philhofer/fwd v1.1.2 // indirect
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2 changes: 0 additions & 2 deletions go.sum
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8 changes: 7 additions & 1 deletion internal/metadataproviders/go.mod
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Expand Up @@ -7,8 +7,9 @@ require (
github.com/aws/aws-sdk-go v1.44.277
github.com/docker/docker v24.0.2+incompatible
github.com/hashicorp/consul/api v1.21.0
github.com/panta/machineid v1.0.2
github.com/stretchr/testify v1.8.4
go.opentelemetry.io/collector/semconv v0.79.0
go.opentelemetry.io/otel/sdk v1.16.0
)

require (
Expand All @@ -19,6 +20,8 @@ require (
github.com/docker/go-connections v0.4.0 // indirect
github.com/docker/go-units v0.4.0 // indirect
github.com/fatih/color v1.13.0 // indirect
github.com/go-logr/logr v1.2.4 // indirect
github.com/go-logr/stdr v1.2.2 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/hashicorp/go-cleanhttp v0.5.1 // indirect
github.com/hashicorp/go-hclog v1.5.0 // indirect
Expand All @@ -38,6 +41,9 @@ require (
github.com/pkg/errors v0.9.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/stretchr/objx v0.5.0 // indirect
go.opentelemetry.io/otel v1.16.0 // indirect
go.opentelemetry.io/otel/metric v1.16.0 // indirect
go.opentelemetry.io/otel/trace v1.16.0 // indirect
golang.org/x/net v0.10.0 // indirect
golang.org/x/sys v0.8.0 // indirect
golang.org/x/time v0.3.0 // indirect
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27 changes: 20 additions & 7 deletions internal/metadataproviders/go.sum
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26 changes: 22 additions & 4 deletions internal/metadataproviders/system/metadata.go
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Expand Up @@ -4,14 +4,16 @@
package system // import "github.com/open-telemetry/opentelemetry-collector-contrib/internal/metadataproviders/system"

import (
"context"
"fmt"
"net"
"os"
"runtime"
"strings"

"github.com/Showmax/go-fqdn"
"github.com/panta/machineid"
conventions "go.opentelemetry.io/collector/semconv/v1.6.1"
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"go.opentelemetry.io/otel/sdk/resource"

"github.com/open-telemetry/opentelemetry-collector-contrib/internal/metadataproviders/internal"
)
Expand Down Expand Up @@ -53,7 +55,7 @@ type Provider interface {
ReverseLookupHost() (string, error)

// HostID returns Host Unique Identifier
HostID() (string, error)
HostID(ctx context.Context) (string, error)
}

type systemMetadataProvider struct {
Expand Down Expand Up @@ -117,6 +119,22 @@ func (p systemMetadataProvider) reverseLookup(ipAddresses []string) (string, err
return "", fmt.Errorf("reverseLookup failed to convert IP addresses to name: %w", err)
}

func (p systemMetadataProvider) HostID() (string, error) {
return machineid.ID()
func (p systemMetadataProvider) HostID(ctx context.Context) (string, error) {
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Is this method tested anywhere? i don't see any specific tests around these changes.

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Not sure how to test it properly as extracting resource to interface for me looks like unnecessary complication. I am open for suggestions

res, err := resource.New(ctx,
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It's a bit "funny" how you need create a resource that includes the "host.id" attribute here, only to "peel" the resource to get just the "host.id" attribute value, and in the end you put that value in an attribute of another resource. This is due to the structure of the contrib's system.Provider interface 🤷

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Yeah, it isn't ideal but I I feel like it is a side affect of the collector needing features before the go-sdk could implement.

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I second that the ergonomics could be better here. The SDK exposes a Resource API, but not APIs for the underlying attributes, which is what you need here. This is probably the best approach given the circumstances.

resource.WithHostID(),
)

if err != nil {
return "", fmt.Errorf("failed to obtain host id: %w", err)
}

iter := res.Iter()

for iter.Next() {
if iter.Attribute().Key == conventions.AttributeHostID {
return iter.Attribute().Value.Emit(), nil
}
}

return "", fmt.Errorf("failed to obtain host id")
}
2 changes: 1 addition & 1 deletion processor/resourcedetectionprocessor/go.mod
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Expand Up @@ -74,7 +74,6 @@ require (
github.com/open-telemetry/opentelemetry-collector-contrib/internal/common v0.79.0 // indirect
github.com/opencontainers/go-digest v1.0.0 // indirect
github.com/opencontainers/image-spec v1.0.2 // indirect
github.com/panta/machineid v1.0.2 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/rs/cors v1.9.0 // indirect
Expand All @@ -84,6 +83,7 @@ require (
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.42.0 // indirect
go.opentelemetry.io/otel v1.16.0 // indirect
go.opentelemetry.io/otel/metric v1.16.0 // indirect
go.opentelemetry.io/otel/sdk v1.16.0 // indirect
go.opentelemetry.io/otel/trace v1.16.0 // indirect
go.uber.org/atomic v1.10.0 // indirect
golang.org/x/net v0.10.0 // indirect
Expand Down
4 changes: 2 additions & 2 deletions processor/resourcedetectionprocessor/go.sum
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4 changes: 2 additions & 2 deletions processor/resourcedetectionprocessor/internal/system/system.go
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Expand Up @@ -49,7 +49,7 @@ func NewDetector(p processor.CreateSettings, dcfg internal.DetectorConfig) (inte
}

// Detect detects system metadata and returns a resource with the available ones
func (d *Detector) Detect(_ context.Context) (resource pcommon.Resource, schemaURL string, err error) {
func (d *Detector) Detect(ctx context.Context) (resource pcommon.Resource, schemaURL string, err error) {
var hostname string

res := pcommon.NewResource()
Expand All @@ -60,7 +60,7 @@ func (d *Detector) Detect(_ context.Context) (resource pcommon.Resource, schemaU
return res, "", fmt.Errorf("failed getting OS type: %w", err)
}

hostID, err := d.provider.HostID()
hostID, err := d.provider.HostID(ctx)
if err != nil {
return res, "", fmt.Errorf("failed getting host ID: %w", err)
}
Expand Down
2 changes: 1 addition & 1 deletion processor/resourcedetectionprocessor/internal/system/system_test.go
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Expand Up @@ -40,7 +40,7 @@ func (m *mockMetadata) OSType() (string, error) {
return args.String(0), args.Error(1)
}

func (m *mockMetadata) HostID() (string, error) {
func (m *mockMetadata) HostID(_ context.Context) (string, error) {
args := m.MethodCalled("HostID")
return args.String(0), args.Error(1)
}
Expand Down