Use exporter-toolkit (#71)

This adds support for TLS configuration on the http metrics endpoint
as well as support for a landing page.

go.mod

@@ -9,15 +9,17 @@ require (
 	github.com/Shopify/sarama v1.37.2
 	github.com/aws/aws-sdk-go v1.44.162
 	github.com/elastic/go-elasticsearch/v7 v7.17.7
+	github.com/goccy/go-yaml v1.11.0
 	github.com/hashicorp/golang-lru v0.5.3
 	github.com/linkedin/goavro/v2 v2.12.0
 	github.com/opensearch-project/opensearch-go v1.1.0
 	github.com/opsgenie/opsgenie-go-sdk-v2 v1.2.14
-	github.com/prometheus/client_golang v1.14.0
+	github.com/prometheus/client_golang v1.16.0
+	github.com/prometheus/exporter-toolkit v0.10.0
 	github.com/rs/zerolog v1.28.0
 	github.com/slack-go/slack v0.12.0
 	github.com/stretchr/testify v1.8.1
-	google.golang.org/api v0.105.0
+	google.golang.org/api v0.107.0
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0
 	k8s.io/api v0.26.7
 	k8s.io/apimachinery v0.26.7
@@ -33,20 +35,22 @@ require (
 	github.com/Masterminds/semver/v3 v3.2.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/eapache/go-resiliency v1.3.0 // indirect
 	github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21 // indirect
 	github.com/eapache/queue v1.1.0 // indirect
 	github.com/emicklei/go-restful/v3 v3.10.1 // indirect
 	github.com/fatih/color v1.15.0 // indirect
+	github.com/go-kit/log v0.2.1 // indirect
+	github.com/go-logfmt/logfmt v0.5.1 // indirect
 	github.com/go-logr/logr v1.2.3 // indirect
 	github.com/go-openapi/jsonpointer v0.19.5 // indirect
 	github.com/go-openapi/jsonreference v0.20.0 // indirect
 	github.com/go-openapi/swag v0.22.3 // indirect
-	github.com/goccy/go-yaml v1.10.0
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/google/gnostic v0.6.9 // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
@@ -69,6 +73,7 @@ require (
 	github.com/jcmturner/rpc/v2 v2.0.3 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
+	github.com/jpillora/backoff v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.15.13 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
@@ -80,32 +85,32 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f // indirect
 	github.com/pierrec/lz4/v4 v4.1.17 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/prometheus/client_model v0.3.0 // indirect
-	github.com/prometheus/common v0.39.0
-	github.com/prometheus/procfs v0.8.0 // indirect
+	github.com/prometheus/client_model v0.4.0 // indirect
+	github.com/prometheus/common v0.44.0 // indirect
+	github.com/prometheus/procfs v0.10.1 // indirect
 	github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 // indirect
-	github.com/rogpeppe/go-internal v1.9.0 // indirect
 	github.com/shopspring/decimal v1.2.0 // indirect
 	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/spf13/cast v1.3.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	go.opencensus.io v0.24.0 // indirect
-	golang.org/x/crypto v0.4.0 // indirect
-	golang.org/x/net v0.8.0 // indirect
-	golang.org/x/oauth2 v0.4.0 // indirect
-	golang.org/x/sync v0.1.0 // indirect
-	golang.org/x/sys v0.6.0 // indirect
-	golang.org/x/term v0.6.0 // indirect
-	golang.org/x/text v0.8.0 // indirect
+	golang.org/x/crypto v0.8.0 // indirect
+	golang.org/x/net v0.10.0 // indirect
+	golang.org/x/oauth2 v0.8.0 // indirect
+	golang.org/x/sync v0.2.0 // indirect
+	golang.org/x/sys v0.8.0 // indirect
+	golang.org/x/term v0.8.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
 	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f // indirect
 	google.golang.org/grpc v1.53.0 // indirect
-	google.golang.org/protobuf v1.28.1 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect