feat: adding hostmetrics receiver for otel and jeager tracing and metrics added for spdk using go otel sdk

[mohamedasifs123]

for hostmetrics
Fixes #11

curl --fail http://127.0.0.1:9091/api/v1/query?query=system_processes_count | grep system_processes_count
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   761  100   761    0     0   242k      0 --:--:-- --:--:-- --:--:--  247k
{"status":"success","data":{"resultType":"vector","result":[{"metric":{"__name__":"system_processes_count","instance":"otel-gw-collector:8889","job":"otel-collector","label1":"value1","status":"blocked"},"value":[1733897303.800,"0"]},{"metric":{"__name__":"system_processes_count","instance":"otel-gw-collector:8889","job":"otel-collector","label1":"value1","status":"running"},"value":[1733897303.800,"1"]},{"metric":{"__name__":"system_processes_count","instance":"otel-gw-collector:8889","job":"otel-collector","label1":"value1","status":"sleeping"},"value":[1733897303.800,"1"]},{"metric":{"__name__":"system_processes_count","instance":"otel-gw-collector:8889","job":"otel-collector","label1":"value1","status":"unknown"},"value":[1733897303.800,"476"]}]}}

for spdk prometheus

curl --fail http://127.0.0.1:9091/api/v1/query?query=spdk_bdev_bytes_read_total | grep spdk_bdev_bytes_read_total
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   496  100   496    0     0  34853      0 --:--:-- --:--:-- --:--:-- 35428
{"status":"success","data":{"resultType":"vector","result":[{"metric":{"__name__":"spdk_bdev_bytes_read_total","bdev_name":"Malloc0","exported_job":"spdk-client","instance":"otel-gw-collector:8889","job":"otel-collector","label1":"value1"},"value":[1733923803.662,"28274688"]},{"metric":{"__name__":"spdk_bdev_bytes_read_total","bdev_name":"Malloc1","exported_job":"spdk-client","instance":"otel-gw-collector:8889","job":"otel-collector","label1":"value1"},"value":[1733923803.662,"28274688"]}]}}

for jeager tracing

  curl "http://127.0.0.1:16686/api/traces?service=spdk-client&limit=1"
{"data":[{"traceID":"e79333760fbae5a8418e9c21dedfa1fd","spans":[{"traceID":"e79333760fbae5a8418e9c21dedfa1fd","spanID":"694ac754c79f7486","operationName":"HTTP POST","references":[{"refType":"CHILD_OF","traceID":"e79333760fbae5a8418e9c21dedfa1fd","spanID":"061c408629c0a0e2"}],"startTime":1733923888468214,"duration":8557,"tags":[{"key":"http.method","type":"string","value":"POST"},{"key":"http.request_content_length","type":"int64","value":37},{"key":"http.status_code","type":"int64","value":200},{"key":"http.url","type":"string","value":"http://spdk:9009"},{"key":"internal.span.format","type":"string","value":"otlp"},{"key":"net.peer.name","type":"string","value":"spdk"},{"key":"net.peer.port","type":"int64","value":9009},{"key":"otel.scope.name","type":"string","value":"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"},{"key":"otel.scope.version","type":"string","value":"0.57.0"},{"key":"span.kind","type":"string","value":"client"}],"logs":[],"processID":"p1","warnings":null},{"traceID":"e79333760fbae5a8418e9c21dedfa1fd","spanID":"061c408629c0a0e2","operationName":"FetchSPDKMetrics","references":[],"startTime":1733923888468031,"duration":8867,"tags":[{"key":"internal.span.format","type":"string","value":"otlp"},{"key":"otel.scope.name","type":"string","value":"spdk-client"},{"key":"span.kind","type":"string","value":"internal"}],"logs":[],"processID":"p1","warnings":null}],"processes":{"p1":{"serviceName":"spdk-client","tags":[]}},"warnings":null}],"total":0,"limit":0,"offset":0,"errors":null}