Added latest metrics available
This commit is contained in:
Vincent Composieux
parent
021de28520
commit
68f0032961
7 changed files with 265 additions and 82 deletions
98
README.md
98
README.md
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@ -12,20 +12,6 @@ This is a Prometheus exporter for [PI-Hole](https://pi-hole.net/)'s Raspberry PI
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## Installation
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### From sources
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First, retrieve the project:
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```bash
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$ go get -u github.com/eko/pihole-exporter
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# or
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$ git clone https://github.com/eko/pihole-exporter.git
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```
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Then, build the binary (here, an example to run on Raspberry PI ARM architecture):
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```bash
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$ GOOS=linux GOARCH=arm GOARM=7 go build -o pihole_exporter .
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```
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### Download binary
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You can also download the latest version of the binary built for your architecture here:
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@ -44,6 +30,20 @@ You can also download the latest version of the binary built for your architectu
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[Linux](https://github.com/eko/pihole-exporter/releases/latest/download/pihole_exporter-linux-arm)
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]
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### From sources
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First, you have to retrieve the project sources by using one of the following way:
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```bash
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$ go get -u github.com/eko/pihole-exporter
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# or
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$ git clone https://github.com/eko/pihole-exporter.git
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```
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Then, build the binary (here, an example to run on Raspberry PI ARM architecture):
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```bash
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$ GOOS=linux GOARCH=arm GOARM=7 go build -o pihole_exporter .
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```
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## Usage
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In order to run the exporter, type the following command (arguments are optional):
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@ -51,29 +51,37 @@ In order to run the exporter, type the following command (arguments are optional
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```bash
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$ ./pihole_exporter -pihole_hostname 192.168.1.10 -pihole_password azerty
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2019/05/09 09:32:19 ------------------------------------
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2019/05/09 09:32:19 - PI-Hole exporter configuration -
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2019/05/09 09:32:19 ------------------------------------
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2019/05/09 09:32:19 PIHoleHostname : 192.168.1.10
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2019/05/09 09:32:19 PIHolePassword : azerty
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2019/05/09 09:32:19 Port : 9311
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2019/05/09 09:32:19 Interval : 10s
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2019/05/09 09:32:19 ------------------------------------
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2019/05/09 09:32:19 New prometheus metric registered: Desc{fqName: "pihole_domains_being_blocked", help: "This represent the number of domains being blocked", constLabels: {}, variableLabels: []}
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2019/05/09 09:32:19 New prometheus metric registered: Desc{fqName: "pihole_dns_queries_today", help: "This represent the number of DNS queries made over the current day", constLabels: {}, variableLabels: []}
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2019/05/09 09:32:19 New prometheus metric registered: Desc{fqName: "pihole_ads_blocked_today", help: "This represent the number of ads blocked over the current day", constLabels: {}, variableLabels: []}
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2019/05/09 09:32:19 New prometheus metric registered: Desc{fqName: "pihole_ads_percentage_today", help: "This represent the percentage of ads blocked over the current day", constLabels: {}, variableLabels: []}
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2019/05/09 09:32:19 New prometheus metric registered: Desc{fqName: "pihole_unique_domains", help: "This represent the number of unique domains seen", constLabels: {}, variableLabels: []}
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2019/05/09 09:32:19 New prometheus metric registered: Desc{fqName: "pihole_queries_forwarded", help: "This represent the number of queries forwarded", constLabels: {}, variableLabels: []}
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2019/05/09 09:32:19 New prometheus metric registered: Desc{fqName: "pihole_queries_cached", help: "This represent the number of queries cached", constLabels: {}, variableLabels: []}
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2019/05/09 09:32:19 New prometheus metric registered: Desc{fqName: "pihole_clients_ever_seen", help: "This represent the number of clients ever seen", constLabels: {}, variableLabels: []}
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2019/05/09 09:32:19 New prometheus metric registered: Desc{fqName: "pihole_unique_clients", help: "This represent the number of unique clients seen", constLabels: {}, variableLabels: []}
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2019/05/09 09:32:19 New prometheus metric registered: Desc{fqName: "pihole_dns_queries_all_types", help: "This represent the number of DNS queries made for all types", constLabels: {}, variableLabels: []}
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2019/05/09 09:32:19 Starting HTTP server
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2019/05/09 20:19:52 ------------------------------------
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2019/05/09 20:19:52 - PI-Hole exporter configuration -
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2019/05/09 20:19:52 ------------------------------------
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2019/05/09 20:19:52 PIHoleHostname : 192.168.1.10
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2019/05/09 20:19:52 PIHolePassword : azerty
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2019/05/09 20:19:52 Port : 9311
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2019/05/09 20:19:52 Interval : 10s
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2019/05/09 20:19:52 ------------------------------------
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2019/05/09 20:19:52 New Prometheus metric registered: domains_blocked
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2019/05/09 20:19:52 New Prometheus metric registered: dns_queries_today
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2019/05/09 20:19:52 New Prometheus metric registered: ads_blocked_today
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2019/05/09 20:19:52 New Prometheus metric registered: ads_percentag_today
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2019/05/09 20:19:52 New Prometheus metric registered: unique_domains
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2019/05/09 20:19:52 New Prometheus metric registered: queries_forwarded
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2019/05/09 20:19:52 New Prometheus metric registered: queries_cached
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2019/05/09 20:19:52 New Prometheus metric registered: clients_ever_seen
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2019/05/09 20:19:52 New Prometheus metric registered: unique_clients
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2019/05/09 20:19:52 New Prometheus metric registered: dns_queries_all_types
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2019/05/09 20:19:52 New Prometheus metric registered: reply
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2019/05/09 20:19:52 New Prometheus metric registered: top_queries
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2019/05/09 20:19:52 New Prometheus metric registered: top_ads
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2019/05/09 20:19:52 New Prometheus metric registered: top_sources
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2019/05/09 20:19:52 New Prometheus metric registered: forward_destinations
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2019/05/09 20:19:52 New Prometheus metric registered: querytypes
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2019/05/09 20:19:52 New Prometheus metric registered: status
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2019/05/09 20:19:52 Starting HTTP server
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2019/05/09 20:19:54 New tick of statistics: 648 ads blocked / 66796 total DNS querie
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...
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```
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## Available options
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## Available CLI options
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```bash
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# Interval of time the exporter will fetch data from PI-Hole
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-interval duration (optional) (default 10s)
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@ -87,3 +95,25 @@ $ ./pihole_exporter -pihole_hostname 192.168.1.10 -pihole_password azerty
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# Port to be used for the exporter
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-port string (optional) (default "9311")
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```
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## Available Prometheus metrics
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| Metric name | Description |
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|:----------------------------:|-------------------------------------------------------------------------------------------|
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| pihole_domains_being_blocked | This represent the number of domains being blocked |
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| pihole_dns_queries_today | This represent the number of DNS queries made over the current day |
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| pihole_ads_blocked_today | This represent the number of ads blocked over the current day |
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| pihole_ads_percentage_today | This represent the percentage of ads blocked over the current day |
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| pihole_unique_domains | This represent the number of unique domains seen |
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| pihole_queries_forwarded | This represent the number of queries forwarded |
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| pihole_queries_cached | This represent the number of queries cached |
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| pihole_clients_ever_seen | This represent the number of clients ever seen |
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| pihole_unique_clients | This represent the number of unique clients seen |
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| pihole_dns_queries_all_types | This represent the number of DNS queries made for all types |
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| pihole_reply | This represent the number of replies made for all types |
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| pihole_top_queries | This represent the number of top queries made by PI-Hole by domain |
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| pihole_top_ads | This represent the number of top ads made by PI-Hole by domain |
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| pihole_top_sources | This represent the number of top sources requests made by PI-Hole by source host |
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| pihole_forward_destinations | This represent the number of forward destinations requests made by PI-Hole by destination |
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| pihole_querytypes | This represent the number of queries made by PI-Hole by type |
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| pihole_status | This represent if PI-Hole is enabled |
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@ -13,6 +13,7 @@ import (
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"github.com/heetch/confita/backend/flags"
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)
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// Config is the exporter CLI configuration.
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type Config struct {
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PIHoleHostname string `config:"pihole_hostname"`
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PIHolePassword string `config:"pihole_password"`
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@ -31,6 +32,7 @@ func getDefaultConfig() *Config {
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}
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}
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// Load method loads the configuration by using both flag or environment variables.
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func Load() *Config {
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loaders := []backend.Backend{
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env.NewBackend(),
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@ -8,111 +8,198 @@ import (
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var (
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// DomainsBlocked - The number of domains being blocked by PI-Hole.
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DomainsBlocked = prometheus.NewGauge(
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DomainsBlocked = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "domains_being_blocked",
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Namespace: "pihole",
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Help: "This represent the number of domains being blocked",
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},
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[]string{"hostname"},
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)
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// DNSQueriesToday - The number of DNS requests made over PI-Hole over the current day.
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DNSQueriesToday = prometheus.NewGauge(
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DNSQueriesToday = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "dns_queries_today",
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Namespace: "pihole",
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Help: "This represent the number of DNS queries made over the current day",
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},
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[]string{"hostname"},
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)
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// AdsBlockedToday - The number of ads blocked by PI-Hole over the current day.
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AdsBlockedToday = prometheus.NewGauge(
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AdsBlockedToday = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "ads_blocked_today",
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Namespace: "pihole",
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Help: "This represent the number of ads blocked over the current day",
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},
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[]string{"hostname"},
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)
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// AdsPercentageToday - The percentage of ads blocked by PI-Hole over the current day.
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AdsPercentageToday = prometheus.NewGauge(
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AdsPercentageToday = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "ads_percentage_today",
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Namespace: "pihole",
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Help: "This represent the percentage of ads blocked over the current day",
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},
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[]string{"hostname"},
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)
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// UniqueDomains - The number of unique domains seen by PI-Hole.
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UniqueDomains = prometheus.NewGauge(
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UniqueDomains = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "unique_domains",
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Namespace: "pihole",
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Help: "This represent the number of unique domains seen",
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},
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[]string{"hostname"},
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)
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// QueriesForwarded - The number of queries forwarded by PI-Hole.
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QueriesForwarded = prometheus.NewGauge(
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QueriesForwarded = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "queries_forwarded",
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Namespace: "pihole",
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Help: "This represent the number of queries forwarded",
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},
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[]string{"hostname"},
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)
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// QueriesCached - The number of queries cached by PI-Hole.
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QueriesCached = prometheus.NewGauge(
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QueriesCached = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "queries_cached",
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Namespace: "pihole",
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Help: "This represent the number of queries cached",
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},
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[]string{"hostname"},
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)
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// ClientsEverSeen - The number of clients ever seen by PI-Hole.
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ClientsEverSeen = prometheus.NewGauge(
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ClientsEverSeen = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "clients_ever_seen",
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Namespace: "pihole",
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Help: "This represent the number of clients ever seen",
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},
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[]string{"hostname"},
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)
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// UniqueClients - The number of unique clients seen by PI-Hole.
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UniqueClients = prometheus.NewGauge(
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UniqueClients = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "unique_clients",
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Namespace: "pihole",
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Help: "This represent the number of unique clients seen",
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},
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[]string{"hostname"},
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)
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// DnsQueriesAllTypes - The number of DNS queries made for all types by PI-Hole.
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DnsQueriesAllTypes = prometheus.NewGauge(
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// DNSQueriesAllTypes - The number of DNS queries made for all types by PI-Hole.
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DNSQueriesAllTypes = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "dns_queries_all_types",
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Namespace: "pihole",
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Help: "This represent the number of DNS queries made for all types",
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},
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[]string{"hostname"},
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)
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// Reply - The number of replies made for every types by PI-Hole.
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Reply = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "reply",
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Namespace: "pihole",
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Help: "This represent the number of replies made for all types",
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},
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[]string{"hostname", "type"},
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)
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// TopQueries - The number of top queries made by PI-Hole by domain.
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TopQueries = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "top_queries",
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Namespace: "pihole",
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Help: "This represent the number of top queries made by PI-Hole by domain",
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},
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[]string{"hostname", "domain"},
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)
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// TopAds - The number of top ads made by PI-Hole by domain.
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TopAds = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "top_ads",
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Namespace: "pihole",
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Help: "This represent the number of top ads made by PI-Hole by domain",
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},
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[]string{"hostname", "domain"},
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)
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// TopSources - The number of top sources requests made by PI-Hole by source host.
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TopSources = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "top_sources",
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Namespace: "pihole",
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Help: "This represent the number of top sources requests made by PI-Hole by source host",
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},
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[]string{"hostname", "source"},
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)
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// ForwardDestinations - The number of forward destinations requests made by PI-Hole by destination.
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ForwardDestinations = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "forward_destinations",
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Namespace: "pihole",
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Help: "This represent the number of forward destinations requests made by PI-Hole by destination",
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},
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[]string{"hostname", "destination"},
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)
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// QueryTypes - The number of queries made by PI-Hole by type.
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QueryTypes = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "querytypes",
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Namespace: "pihole",
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Help: "This represent the number of queries made by PI-Hole by type",
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},
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[]string{"hostname", "type"},
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)
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// Status - Is PI-Hole enabled?
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Status = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "status",
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Namespace: "pihole",
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Help: "This if PI-Hole is enabled",
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},
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[]string{"hostname"},
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)
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)
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// Init initializes Prometheus metrics
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// Init initializes all Prometheus metrics made available by PI-Hole exporter.
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func Init() {
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initMetric(DomainsBlocked)
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initMetric(DNSQueriesToday)
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initMetric(AdsBlockedToday)
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initMetric(AdsPercentageToday)
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initMetric(UniqueDomains)
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initMetric(QueriesForwarded)
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initMetric(QueriesCached)
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initMetric(ClientsEverSeen)
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initMetric(UniqueClients)
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initMetric(DnsQueriesAllTypes)
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initMetric("domains_blocked", DomainsBlocked)
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initMetric("dns_queries_today", DNSQueriesToday)
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initMetric("ads_blocked_today", AdsBlockedToday)
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initMetric("ads_percentag_today", AdsPercentageToday)
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initMetric("unique_domains", UniqueDomains)
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initMetric("queries_forwarded", QueriesForwarded)
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initMetric("queries_cached", QueriesCached)
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initMetric("clients_ever_seen", ClientsEverSeen)
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initMetric("unique_clients", UniqueClients)
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initMetric("dns_queries_all_types", DNSQueriesAllTypes)
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initMetric("reply", Reply)
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initMetric("top_queries", TopQueries)
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initMetric("top_ads", TopAds)
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initMetric("top_sources", TopSources)
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initMetric("forward_destinations", ForwardDestinations)
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initMetric("querytypes", QueryTypes)
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initMetric("status", Status)
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}
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func initMetric(metric prometheus.Gauge) {
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func initMetric(name string, metric *prometheus.GaugeVec) {
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prometheus.MustRegister(metric)
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log.Printf("New prometheus metric registered: %s", metric.Desc().String())
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log.Printf("New Prometheus metric registered: %s", name)
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}
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@ -20,6 +20,7 @@ var (
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statsURLPattern = "http://%s/admin/api.php?summaryRaw&overTimeData&topItems&recentItems&getQueryTypes&getForwardDestinations&getQuerySources&jsonForceObject"
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)
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// Client struct is a PI-Hole client to request an instance of a PI-Hole ad blocker.
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type Client struct {
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hostname string
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password string
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@ -27,6 +28,7 @@ type Client struct {
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httpClient http.Client
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}
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// NewClient method initializes a new PI-Hole client.
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func NewClient(hostname, password string, interval time.Duration) *Client {
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return &Client{
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hostname: hostname,
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@ -40,7 +42,9 @@ func NewClient(hostname, password string, interval time.Duration) *Client {
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}
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}
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func (c *Client) Fetch() {
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// Scrape method logins and retrieves statistics from PI-Hole JSON API
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// and then pass them as Prometheus metrics.
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func (c *Client) Scrape() {
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for range time.Tick(c.interval) {
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sessionID := c.getPHPSessionID()
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if sessionID == nil {
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@ -49,19 +53,53 @@ func (c *Client) Fetch() {
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}
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stats := c.getStatistics(*sessionID)
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c.setMetrics(stats)
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log.Println("New tick of statistics", stats)
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log.Printf("New tick of statistics: %s", stats.ToString())
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}
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}
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metrics.DomainsBlocked.Set(float64(stats.DomainsBeingBlocked))
|
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metrics.DNSQueriesToday.Set(float64(stats.DNSQueriesToday))
|
||||
metrics.AdsBlockedToday.Set(float64(stats.AdsBlockedToday))
|
||||
metrics.AdsPercentageToday.Set(float64(stats.AdsPercentageToday))
|
||||
metrics.UniqueDomains.Set(float64(stats.UniqueDomains))
|
||||
metrics.QueriesForwarded.Set(float64(stats.QueriesForwarded))
|
||||
metrics.QueriesCached.Set(float64(stats.QueriesCached))
|
||||
metrics.ClientsEverSeen.Set(float64(stats.ClientsEverSeen))
|
||||
metrics.UniqueClients.Set(float64(stats.UniqueClients))
|
||||
metrics.DnsQueriesAllTypes.Set(float64(stats.DnsQueriesAllTypes))
|
||||
func (c *Client) setMetrics(stats *Stats) {
|
||||
metrics.DomainsBlocked.WithLabelValues(c.hostname).Set(float64(stats.DomainsBeingBlocked))
|
||||
metrics.DNSQueriesToday.WithLabelValues(c.hostname).Set(float64(stats.DNSQueriesToday))
|
||||
metrics.AdsBlockedToday.WithLabelValues(c.hostname).Set(float64(stats.AdsBlockedToday))
|
||||
metrics.AdsPercentageToday.WithLabelValues(c.hostname).Set(float64(stats.AdsPercentageToday))
|
||||
metrics.UniqueDomains.WithLabelValues(c.hostname).Set(float64(stats.UniqueDomains))
|
||||
metrics.QueriesForwarded.WithLabelValues(c.hostname).Set(float64(stats.QueriesForwarded))
|
||||
metrics.QueriesCached.WithLabelValues(c.hostname).Set(float64(stats.QueriesCached))
|
||||
metrics.ClientsEverSeen.WithLabelValues(c.hostname).Set(float64(stats.ClientsEverSeen))
|
||||
metrics.UniqueClients.WithLabelValues(c.hostname).Set(float64(stats.UniqueClients))
|
||||
metrics.DNSQueriesAllTypes.WithLabelValues(c.hostname).Set(float64(stats.DNSQueriesAllTypes))
|
||||
|
||||
metrics.Reply.WithLabelValues(c.hostname, "no_data").Set(float64(stats.ReplyNoData))
|
||||
metrics.Reply.WithLabelValues(c.hostname, "nx_domain").Set(float64(stats.ReplyNxDomain))
|
||||
metrics.Reply.WithLabelValues(c.hostname, "cname").Set(float64(stats.ReplyCname))
|
||||
metrics.Reply.WithLabelValues(c.hostname, "ip").Set(float64(stats.ReplyIP))
|
||||
|
||||
var isEnabled int = 0
|
||||
if stats.Status == enabledStatus {
|
||||
isEnabled = 1
|
||||
}
|
||||
metrics.Status.WithLabelValues(c.hostname).Set(float64(isEnabled))
|
||||
|
||||
for domain, value := range stats.TopQueries {
|
||||
metrics.TopQueries.WithLabelValues(c.hostname, domain).Set(float64(value))
|
||||
}
|
||||
|
||||
for domain, value := range stats.TopAds {
|
||||
metrics.TopAds.WithLabelValues(c.hostname, domain).Set(float64(value))
|
||||
}
|
||||
|
||||
for source, value := range stats.TopSources {
|
||||
metrics.TopSources.WithLabelValues(c.hostname, source).Set(float64(value))
|
||||
}
|
||||
|
||||
for destination, value := range stats.ForwardDestinations {
|
||||
metrics.ForwardDestinations.WithLabelValues(c.hostname, destination).Set(value)
|
||||
}
|
||||
|
||||
for queryType, value := range stats.QueryTypes {
|
||||
metrics.QueryTypes.WithLabelValues(c.hostname, queryType).Set(value)
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,6 +1,12 @@
|
|||
package pihole
|
||||
|
||||
// Stats is the PI-Hole statistics JSON API corresponding model
|
||||
import "fmt"
|
||||
|
||||
const (
|
||||
enabledStatus = "enabled"
|
||||
)
|
||||
|
||||
// Stats struct is the PI-Hole statistics JSON API corresponding model.
|
||||
type Stats struct {
|
||||
DomainsBeingBlocked int `json:"domains_being_blocked"`
|
||||
DNSQueriesToday int `json:"dns_queries_today"`
|
||||
|
|
@ -11,5 +17,20 @@ type Stats struct {
|
|||
QueriesCached int `json:"queries_cached"`
|
||||
ClientsEverSeen int `json:"clients_ever_seen"`
|
||||
UniqueClients int `json:"unique_clients"`
|
||||
DnsQueriesAllTypes int `json:"dns_queries_all_types"`
|
||||
DNSQueriesAllTypes int `json:"dns_queries_all_types"`
|
||||
ReplyNoData int `json:"reply_NODATA"`
|
||||
ReplyNxDomain int `json:"reply_NXDOMAIN"`
|
||||
ReplyCname int `json:"reply_CNAME"`
|
||||
ReplyIP int `json:"reply_IP"`
|
||||
TopQueries map[string]int `json:"top_queries"`
|
||||
TopAds map[string]int `json:"top_ads"`
|
||||
TopSources map[string]int `json:"top_sources"`
|
||||
ForwardDestinations map[string]float64 `json:"forward_destinations"`
|
||||
QueryTypes map[string]float64 `json:"querytypes"`
|
||||
Status string `json:"status"`
|
||||
}
|
||||
|
||||
// ToString method returns a string of the current statistics struct.
|
||||
func (s *Stats) ToString() string {
|
||||
return fmt.Sprintf("%d ads blocked / %d total DNS queries", s.AdsBlockedToday, s.DNSQueriesAllTypes)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -9,10 +9,13 @@ import (
|
|||
"golang.org/x/net/context"
|
||||
)
|
||||
|
||||
// Server is the struct for the HTTP server.
|
||||
type Server struct {
|
||||
httpServer *http.Server
|
||||
}
|
||||
|
||||
// NewServer method initializes a new HTTP server instance and associates
|
||||
// the different routes that will be used by Prometheus (metrics) or for monitoring (readiness, liveness).
|
||||
func NewServer(port string) *Server {
|
||||
mux := http.NewServeMux()
|
||||
httpServer := &http.Server{Addr: ":" + port, Handler: mux}
|
||||
|
|
@ -28,6 +31,7 @@ func NewServer(port string) *Server {
|
|||
return s
|
||||
}
|
||||
|
||||
// ListenAndServe method serves HTTP requests.
|
||||
func (s *Server) ListenAndServe() {
|
||||
log.Println("Starting HTTP server")
|
||||
|
||||
|
|
@ -37,6 +41,7 @@ func (s *Server) ListenAndServe() {
|
|||
}
|
||||
}
|
||||
|
||||
// Stop method stops the HTTP server (so the exporter become unavailable).
|
||||
func (s *Server) Stop() {
|
||||
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
|
||||
defer cancel()
|
||||
|
|
|
|||
2
main.go
2
main.go
|
|
@ -34,7 +34,7 @@ func main() {
|
|||
|
||||
func initPiholeClient(hostname, password string, interval time.Duration) {
|
||||
client := pihole.NewClient(hostname, password, interval)
|
||||
go client.Fetch()
|
||||
go client.Scrape()
|
||||
}
|
||||
|
||||
func initHttpServer(port string) {
|
||||
|
|
|
|||
Loading…
Reference in a new issue