[processor/resourcedetection] Add support for host cpuinfo attributes

**Description:** : Added support for host's cpuinfo attributes
                   as part of the system resourcedetection. This information
		   is retrieved from /proc/cpuinfo.

**Link to tracking Issue:** open-telemetry#26532

Signed-off-by: ChrsMark <[email protected]>

.chloggen/add_host_cpuinfo.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# 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: processor/resourcedetection
+
+# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Added support for host's cpuinfo attributes. This information is retrieved from /proc/cpuinfo.
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [26532]
+
+# (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:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: []

processor/resourcedetectionprocessor/internal/system/system.go

@@ -8,6 +8,7 @@ import (
  "errors"
  "fmt"
 
+ "github.com/shirou/gopsutil/v3/cpu"
  "go.opentelemetry.io/collector/pdata/pcommon"
  "go.opentelemetry.io/collector/processor"
  conventions "go.opentelemetry.io/collector/semconv/v1.6.1"
@@ -74,6 +75,11 @@ func (d *Detector) Detect(ctx context.Context) (resource pcommon.Resource, schem
  return pcommon.NewResource(), "", fmt.Errorf("failed getting OS description: %w", err)
  }
 
+ cpuInfo, err := cpu.Info()
+ if err != nil {
+ return pcommon.NewResource(), "", fmt.Errorf("failed getting host cpuinfo: %w", err)
+ }
+
  for _, source := range d.cfg.HostnameSources {
  getHostFromSource := hostnameSourcesMap[source]
  hostname, err = getHostFromSource(d)
@@ -89,6 +95,9 @@ func (d *Detector) Detect(ctx context.Context) (resource pcommon.Resource, schem
  }
  d.rb.SetHostArch(hostArch)
  d.rb.SetOsDescription(osDescription)
+ if len(cpuInfo) > 0 {
+ d.rb.SetHostCPUInfo(cpuInfo[0])
+ }
  return d.rb.Emit(), conventions.SchemaURL, nil
  }
  d.logger.Debug(err.Error())