feat: use a single graphql client

Author: Cyb3r-Jak3

cloudflare.go

@@ -15,6 +15,10 @@ const (
 	cfGraphQLEndpoint = "https://api.cloudflare.com/client/v4/graphql/"
 )
 
+var (
+	graphqlClient *graphql.Client
+)
+
 type cloudflareResponse struct {
 	Viewer struct {
 		Zones []zoneResp `json:"zones"`
@@ -309,9 +313,9 @@ func fetchFirewallRules(zoneID string) map[string]string {
 	}
 	for _, rulesetDesc := range listOfRulesets {
 		if rulesetDesc.Phase == "http_request_firewall_managed" {
-			ruleset, err := cloudflareAPI.GetRuleset(ctx, cloudflare.ZoneIdentifier(zoneID), rulesetDesc.ID)
-			if err != nil {
-				log.Fatalf("Error fetching ruleset: %s", err)
+			ruleset, ruleGetErr := cloudflareAPI.GetRuleset(ctx, cloudflare.ZoneIdentifier(zoneID), rulesetDesc.ID)
+			if ruleGetErr != nil {
+				log.Fatalf("Error fetching ruleset: %s", ruleGetErr)
 			}
 			for _, rule := range ruleset.Rules {
 				firewallRulesMap[rule.ID] = rule.Description
@@ -447,7 +451,6 @@ query ($zoneIDs: [String!], $mintime: Time!, $maxtime: Time!, $limit: Int!) {
 	request.Var("zoneIDs", zoneIDs)
 
 	ctx := context.Background()
-	graphqlClient := graphql.NewClient(cfGraphQLEndpoint)
 
 	var resp cloudflareResponse
 	if err := graphqlClient.Run(ctx, request, &resp); err != nil {
@@ -503,7 +506,6 @@ func fetchColoTotals(zoneIDs []string) (*cloudflareResponseColo, error) {
 	request.Var("zoneIDs", zoneIDs)
 
 	ctx := context.Background()
-	graphqlClient := graphql.NewClient(cfGraphQLEndpoint)
 	var resp cloudflareResponseColo
 	if err := graphqlClient.Run(ctx, request, &resp); err != nil {
 		log.Error(err)
@@ -563,7 +565,6 @@ func fetchWorkerTotals(accountID string) (*cloudflareResponseAccts, error) {
 	request.Var("accountID", accountID)
 
 	ctx := context.Background()
-	graphqlClient := graphql.NewClient(cfGraphQLEndpoint)
 	var resp cloudflareResponseAccts
 	if err := graphqlClient.Run(ctx, request, &resp); err != nil {
 		log.Errorf("Error fetching worker totals: %s", err)
@@ -640,7 +641,6 @@ func fetchLoadBalancerTotals(zoneIDs []string) (*cloudflareResponseLb, error) {
 	request.Var("zoneIDs", zoneIDs)
 
 	ctx := context.Background()
-	graphqlClient := graphql.NewClient(cfGraphQLEndpoint)
 	var resp cloudflareResponseLb
 	if err := graphqlClient.Run(ctx, request, &resp); err != nil {
 		log.Errorf("Error fetching load balancer totals: %s", err)
@@ -692,7 +692,6 @@ func fetchLogpushAccount(accountID string) (*cloudflareResponseLogpushAccount, e
 	request.Var("mintime", now1mAgo)
 
 	ctx := context.Background()
-	graphqlClient := graphql.NewClient(cfGraphQLEndpoint)
 	var resp cloudflareResponseLogpushAccount
 	if err := graphqlClient.Run(ctx, request, &resp); err != nil {
 		log.Errorf("Error fetching logpush account totals: %s", err)
@@ -744,7 +743,6 @@ func fetchLogpushZone(zoneIDs []string) (*cloudflareResponseLogpushZone, error)
 	request.Var("mintime", now1mAgo)
 
 	ctx := context.Background()
-	graphqlClient := graphql.NewClient(cfGraphQLEndpoint)
 	var resp cloudflareResponseLogpushZone
 	if err := graphqlClient.Run(ctx, request, &resp); err != nil {
 		log.Errorf("Error fetching logpush zone totals: %s", err)
@@ -802,7 +800,6 @@ func fetchR2Account(accountID string) (*cloudflareResponseR2Account, error) {
 	request.Var("date", now.Format("2006-01-02"))
 
 	ctx := context.Background()
-	graphqlClient := graphql.NewClient(cfGraphQLEndpoint)
 	var resp cloudflareResponseR2Account
 	if err := graphqlClient.Run(ctx, request, &resp); err != nil {
 		log.Errorf("Error fetching R2 account: %s", err)

main.go

@@ -5,10 +5,12 @@ import (
 	"fmt"
 	"net/http"
 	"runtime/debug"
+	"slices"
 	"strings"
 	"sync"
 	"time"
 
+	"github.com/machinebox/graphql"
 	"github.com/nelkinda/health-go"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/spf13/cobra"
@@ -76,15 +78,6 @@ func filterZones(all []cloudflare.Zone, target []string) []cloudflare.Zone {
 	return filtered
 }
 
-func contains(s []string, e string) bool {
-	for _, a := range s {
-		if a == e {
-			return true
-		}
-	}
-	return false
-}
-
 func filterExcludedZones(all []cloudflare.Zone, exclude []string) []cloudflare.Zone {
 	var filtered []cloudflare.Zone
 
@@ -93,7 +86,7 @@ func filterExcludedZones(all []cloudflare.Zone, exclude []string) []cloudflare.Z
 	}
 
 	for _, z := range all {
-		if contains(exclude, z.ID) {
+		if slices.Contains(exclude, z.ID) {
 			log.Info("Exclude zone: ", z.ID, " ", z.Name)
 		} else {
 			filtered = append(filtered, z)
@@ -163,6 +156,8 @@ func runExporter() {
 		log.Fatalf("Error creating Cloudflare API client: %s", err)
 	}
 
+	graphqlClient = graphql.NewClient(cfGraphQLEndpoint)
+
 	if len(viper.GetString("cf_api_token")) > 0 {
 		status, err := cloudflareAPI.VerifyAPIToken(context.Background())
 		if err != nil {
@@ -179,7 +174,7 @@ func runExporter() {
 	if err != nil {
 		log.Fatalf("Error building metrics set: %s", err)
 	}
-	log.Debugf("Metrics set: %v", metricsSet)
+	//log.Debugf("Metrics set: %v", metricsSet)
 	mustRegisterMetrics(metricsSet)
 
 	go func() {
@@ -200,7 +195,10 @@ func runExporter() {
 	}
 
 	http.Handle(cfgMetricsPath, promhttp.Handler())
-	h := health.New(health.Health{})
+	h := health.New(health.Health{
+		ReleaseID: version,
+		Version:   versionString,
+	})
 	http.HandleFunc("/health", h.Handler)
 
 	log.Info("Beginning to serve metrics on ", viper.GetString("listen"), cfgMetricsPath)
@@ -255,7 +253,7 @@ func main() {
 	viper.BindEnv("cf_exclude_zones")
 	viper.SetDefault("cf_exclude_zones", "")
 
-	flags.Int("scrape_delay", 300, "scrape delay in seconds0")
+	flags.Int("scrape_delay", 300, "scrape delay in seconds")
 	viper.BindEnv("scrape_delay")
 	viper.SetDefault("scrape_delay", 300)
 

prometheus.go

@@ -72,6 +72,7 @@ var (
 		Name: buildInfoMetricName.String(),
 		Help: "A metric with a constant '1' value labeled by version, revision, branch, and goversion from which the cloudflare_exporter was built.",
 	}, []string{"version", "goversion", "revision"})
+
 	// Requests
 	zoneRequestTotal = prometheus.NewCounterVec(prometheus.CounterOpts{
 		Name: zoneRequestTotalMetricName.String(),