Add vizier version to vizier metrics.

Summary: Adds the deployed vizier version to all vizier metrics sent to cloud. This will help compare metrics from one version to the next.

Test Plan: Saw that metrics sent to big query had the new vizier_version attached.

Reviewers: nserrino, vihang

Reviewed By: vihang

Signed-off-by: James Bartlett <jamesbartlett@pixielabs.ai>

Differential Revision: https://phab.corp.pixielabs.ai/D11314

GitOrigin-RevId: 1df915d

src/vizier/services/cloud_connector/vzmetrics/BUILD.bazel

@@ -22,6 +22,7 @@ go_library(
     importpath = "px.dev/pixie/src/vizier/services/cloud_connector/vzmetrics",
     visibility = ["//visibility:public"],
     deps = [
+        "//src/shared/goversion",
         "@com_github_prometheus_common//expfmt",
         "@com_github_prometheus_common//model",
         "@com_github_prometheus_prometheus//prompb",

src/vizier/services/cloud_connector/vzmetrics/parse.go

@@ -26,6 +26,8 @@ import (
 	"github.com/prometheus/common/expfmt"
 	"github.com/prometheus/common/model"
 	"github.com/prometheus/prometheus/prompb"
+
+	version "px.dev/pixie/src/shared/goversion"
 )
 
 // ParsePrometheusTextToWriteReq parses prometheus metrics in prometheus' text-based exposition format, into a prometheus WriteRequest protobuf.
@@ -49,6 +51,7 @@ func ParsePrometheusTextToWriteReq(text string, clusterID string, podName string
 	for _, s := range samples {
 		s.Metric["cluster_id"] = model.LabelValue(clusterID)
 		s.Metric["pod_name"] = model.LabelValue(podName)
+		s.Metric["vizier_version"] = model.LabelValue(version.GetVersion().ToString())
 	}
 	return toWriteRequest(samples), nil
 }