Added pint_rule_file_owner metric

cmd/pint/tests/0042_watch_metrics.txt

@@ -166,6 +166,10 @@ pint_problem{filename="rules/unknown.yml",kind="recording",name="broken",owner="
 # HELP pint_problems Total number of problems reported by pint
 # TYPE pint_problems gauge
 pint_problems
+# HELP pint_rule_file_owner This is a boolean metric that describes who is the configured owner for given rule file
+# TYPE pint_rule_file_owner gauge
+pint_rule_file_owner{filename="rules/alice.yml",owner="alice"}
+pint_rule_file_owner{filename="rules/bob.yml",owner="bob"}
 # HELP pint_rules_parsed_total Total number of rules parsed since startup
 # TYPE pint_rules_parsed_total counter
 pint_rules_parsed_total{kind="alerting"}

cmd/pint/tests/0054_watch_metrics_prometheus.txt

@@ -145,6 +145,9 @@ pint_prometheus_query_errors_total{endpoint="/api/v1/status/config",name="prom1"
 pint_prometheus_query_errors_total{endpoint="/api/v1/status/config",name="prom2",reason="connection/error"}
 pint_prometheus_query_errors_total{endpoint="/api/v1/status/flags",name="prom1",reason="api/client_error"}
 pint_prometheus_query_errors_total{endpoint="/api/v1/status/flags",name="prom2",reason="connection/error"}
+# HELP pint_rule_file_owner This is a boolean metric that describes who is the configured owner for given rule file
+# TYPE pint_rule_file_owner gauge
+pint_rule_file_owner{filename="rules/2.yml",owner="bob and alice"}
 # HELP pint_rules_parsed_total Total number of rules parsed since startup
 # TYPE pint_rules_parsed_total counter
 pint_rules_parsed_total{kind="alerting"}

cmd/pint/watch.go

@@ -206,20 +206,23 @@ func startTimer(ctx context.Context, cfg config.Config, workers int, interval ti
 }
 
 type problemCollector struct {
-	lock        sync.Mutex
-	cfg         config.Config
-	paths       []string
-	summary     *reporter.Summary
-	problem     *prometheus.Desc
-	problems    *prometheus.Desc
-	minSeverity checks.Severity
-	maxProblems int
+	lock             sync.Mutex
+	cfg              config.Config
+	paths            []string
+	fileOwners       map[string]string
+	summary          *reporter.Summary
+	problem          *prometheus.Desc
+	problems         *prometheus.Desc
+	fileOwnersMetric *prometheus.Desc
+	minSeverity      checks.Severity
+	maxProblems      int
 }
 
 func newProblemCollector(cfg config.Config, paths []string, minSeverity checks.Severity, maxProblems int) *problemCollector {
 	return &problemCollector{
-		cfg:   cfg,
-		paths: paths,
+		cfg:        cfg,
+		paths:      paths,
+		fileOwners: map[string]string{},
 		problem: prometheus.NewDesc(
 			"pint_problem",
 			"Prometheus rule problem reported by pint",
@@ -232,6 +235,12 @@ func newProblemCollector(cfg config.Config, paths []string, minSeverity checks.S
 			[]string{},
 			prometheus.Labels{},
 		),
+		fileOwnersMetric: prometheus.NewDesc(
+			"pint_rule_file_owner",
+			"This is a boolean metric that describes who is the configured owner for given rule file",
+			[]string{"filename", "owner"},
+			prometheus.Labels{},
+		),
 		minSeverity: minSeverity,
 		maxProblems: maxProblems,
 	}
@@ -248,8 +257,17 @@ func (c *problemCollector) scan(ctx context.Context, workers int) error {
 	s := checkRules(ctx, workers, c.cfg, entries)
 
 	c.lock.Lock()
+	defer c.lock.Unlock()
+
 	c.summary = &s
-	c.lock.Unlock()
+
+	fileOwners := map[string]string{}
+	for _, entry := range entries {
+		if entry.Owner != "" {
+			fileOwners[entry.ReportedPath] = entry.Owner
+		}
+	}
+	c.fileOwners = fileOwners
 
 	return nil
 }
@@ -266,6 +284,10 @@ func (c *problemCollector) Collect(ch chan<- prometheus.Metric) {
 		return
 	}
 
+	for filename, owner := range c.fileOwners {
+		ch <- prometheus.MustNewConstMetric(c.fileOwnersMetric, prometheus.GaugeValue, 1, filename, owner)
+	}
+
 	done := map[string]prometheus.Metric{}
 	keys := []string{}
 

docs/changelog.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## v0.37.0
+
+### Added
+
+- Added `pint_rule_file_owner` metric.
+
 ## v0.36.0
 
 ### Added