update changelog

Merge branch 'feature-small-updates' into 'main'
update small changes See merge request adoralaura/ntppool-exporter!2
2024-04-17 20:14:09 +02:00 · 2024-04-17 18:10:05 +00:00 · 2024-04-17 20:08:30 +02:00 · 2024-04-17 20:07:24 +02:00 · 2024-04-17 20:07:00 +02:00 · 2024-04-17 20:06:42 +02:00
13 changed files with 750 additions and 77 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,30 @@
+# If you prefer the allow list template instead of the deny list, see community template:
+# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
+#
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work
+
+# vscode Go debugging files
+__debug_*
+ntppool-exporter
+bin/
+
+# vscode editor config
+.vscode/
+
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -0,0 +1,31 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+### Changed
+- renamed the score metric from `ntppool_score` to `ntppool_server_score`
+- fixed some debug logs
+
+### Removed
+- unneccessary `server` label in metrics
+
+## [0.1.1] - 2024-04-17
+### Fixed
+- Fix nil references when http request fails (#2)
+
+## [0.1.0] - 2024-04-17
+
+### Added
+- This CHANGELOG file to document all significant changes
+- LICENSE
+- CONTRIBUTING guidelines
+- MAINTAINERS file
+- minimal implementation of the exporter
+
+[unreleased]: https://gitlab.com/adoralaura/ntppool-exporter/compare/0.1.1...HEAD
+[0.1.1]: https://gitlab.com/adoralaura/ntppool-exporter/compare/0.1.0...0.1.1
+[0.1.0]: https://gitlab.com/adoralaura/ntppool-exporter/releases/tag/0.1.0
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@ -0,0 +1,17 @@
+# Contributing
+
+We use GitLab to manage reviews of pull requests.
+
+* If you have a trivial fix or improvement, go ahead and create a pull request,
+  addressing (with `@...`) the maintainer of this repository (see
+  [MAINTAINERS.md](MAINTAINERS.md)) in the description of the pull request.
+
+* If you plan to do something more involved, first please create [a new issue](https://gitlab.com/adoralaura/ntppool-exporter/-/issues/new).
+
+# What to contribute
+
+The best way to help without speaking a lot of Go would be to share your
+configuration, alerts, dashboards, and recording rules. If you have something
+that works and is not in the repository, please pay it forward and
+share what works.
+
--- a/32
+++ b/32
@ -0,0 +1,32 @@
+FROM golang:1.22-bullseye AS dev
+
+COPY . /var/app
+WORKDIR /var/app
+
+
+ENV GO111MODULE="on" \
+    CGO_ENABLED=0 \
+    GOOS=linux
+
+EXPOSE 80
+ENTRYPOINT ["sh"]
+
+
+FROM dev as build
+
+RUN DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends --assume-yes ca-certificates
+RUN go mod download && go mod verify
+RUN go build -o ntppool-exporter main.go
+RUN chmod +x ntppool-exporter
+
+
+FROM debian:12 AS prod
+
+WORKDIR /app
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=build /var/app/ntppool-exporter /bin/
+
+LABEL maintainer="Adora Laura Kalb <adora@lila.network>"
+
+EXPOSE     43609
+ENTRYPOINT ["/bin/ntppool-exporter"]
--- a/201
+++ b/201
@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
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+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
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+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
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+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
--- a/MAINTAINERS.md
+++ b/MAINTAINERS.md
@ -0,0 +1 @@
+* Adora Laura Kalb <adora@lila.network> @adoralaura
--- a/README.md
+++ b/README.md
@ -1,94 +1,71 @@
-# ntppool Exporter
+# ntppool.org Exporter

-test
+This exporter is @adoralaura s try to display server scores from servers in [ntppool.org](https://www.ntppool.org) in a format which [Prometheus](https://prometheus.io/) can ingest.


-## Getting started

-To make it easy for you to get started with GitLab, here's a list of recommended next steps.

-Already a pro? Just edit this README.md and make it your own. Want to make it easy? [Use the template at the bottom](#editing-this-readme)!

-## Add your files
-
- [ ] [Create](https://docs.gitlab.com/ee/user/project/repository/web_editor.html#create-a-file) or [upload](https://docs.gitlab.com/ee/user/project/repository/web_editor.html#upload-a-file) files
- [ ] [Add files using the command line](https://docs.gitlab.com/ee/gitlab-basics/add-file.html#add-a-file-using-the-command-line) or push an existing Git repository with the following command:
-
-```
-cd existing_repo
-git remote add origin https://gitlab.com/adoralaura/ntppool-exporter.git
-git branch -M main
-git push -uf origin main
-```
-
-## Integrate with your tools
-
- [ ] [Set up project integrations](https://gitlab.com/adoralaura/ntppool-exporter/-/settings/integrations)
-
-## Collaborate with your team
-
- [ ] [Invite team members and collaborators](https://docs.gitlab.com/ee/user/project/members/)
- [ ] [Create a new merge request](https://docs.gitlab.com/ee/user/project/merge_requests/creating_merge_requests.html)
- [ ] [Automatically close issues from merge requests](https://docs.gitlab.com/ee/user/project/issues/managing_issues.html#closing-issues-automatically)
- [ ] [Enable merge request approvals](https://docs.gitlab.com/ee/user/project/merge_requests/approvals/)
- [ ] [Set auto-merge](https://docs.gitlab.com/ee/user/project/merge_requests/merge_when_pipeline_succeeds.html)
-
-## Test and Deploy
-
-Use the built-in continuous integration in GitLab.
-
- [ ] [Get started with GitLab CI/CD](https://docs.gitlab.com/ee/ci/quick_start/index.html)
- [ ] [Analyze your code for known vulnerabilities with Static Application Security Testing (SAST)](https://docs.gitlab.com/ee/user/application_security/sast/)
- [ ] [Deploy to Kubernetes, Amazon EC2, or Amazon ECS using Auto Deploy](https://docs.gitlab.com/ee/topics/autodevops/requirements.html)
- [ ] [Use pull-based deployments for improved Kubernetes management](https://docs.gitlab.com/ee/user/clusters/agent/)
- [ ] [Set up protected environments](https://docs.gitlab.com/ee/ci/environments/protected_environments.html)
-
-***
-
-# Editing this README
-
-When you're ready to make this README your own, just edit this file and use the handy template below (or feel free to structure it however you want - this is just a starting point!). Thanks to [makeareadme.com](https://www.makeareadme.com/) for this template.
-
-## Suggestions for a good README
-
-Every project is different, so consider which of these sections apply to yours. The sections used in the template are suggestions for most open source projects. Also keep in mind that while a README can be too long and detailed, too long is better than too short. If you think your README is too long, consider utilizing another form of documentation rather than cutting out information.
-
-## Name
-Choose a self-explaining name for your project.
-
-## Description
-Let people know what your project can do specifically. Provide context and add a link to any reference visitors might be unfamiliar with. A list of Features or a Background subsection can also be added here. If there are alternatives to your project, this is a good place to list differentiating factors.
-
-## Badges
-On some READMEs, you may see small images that convey metadata, such as whether or not all the tests are passing for the project. You can use Shields to add some to your README. Many services also have instructions for adding a badge.
-
-## Visuals
-Depending on what you are making, it can be a good idea to include screenshots or even a video (you'll frequently see GIFs rather than actual videos). Tools like ttygif can help, but check out Asciinema for a more sophisticated method.
+# Usage

 ## Installation
-Within a particular ecosystem, there may be a common way of installing things, such as using Yarn, NuGet, or Homebrew. However, consider the possibility that whoever is reading your README is a novice and would like more guidance. Listing specific steps helps remove ambiguity and gets people to using your project as quickly as possible. If it only runs in a specific context like a particular programming language version or operating system or has dependencies that have to be installed manually, also add a Requirements subsection.

-## Usage
-Use examples liberally, and show the expected output if you can. It's helpful to have inline the smallest example of usage that you can demonstrate, while providing links to more sophisticated examples if they are too long to reasonably include in the README.
+Binaries can be downloaded soon from the [GitLab releases page](https://gitlab.com/adoralaura/ntppool-exporter/-/releases) and need no
+special installation

-## Support
-Tell people where they can go to for help. It can be any combination of an issue tracker, a chat room, an email address, etc.
+## Running

-## Roadmap
-If you have ideas for releases in the future, it is a good idea to list them in the README.
+Start `ntppool-exporter` as a daemon or from CLI:

-## Contributing
-State if you are open to contributions and what your requirements are for accepting them.
+```sh
+./ntppool-exporter
+```

-For people who want to make changes to your project, it's helpful to have some documentation on how to get started. Perhaps there is a script that they should run or some environment variables that they need to set. Make these steps explicit. These instructions could also be useful to your future self.
+Visit <http://localhost:43609/metrics?target=192.0.0.8> where `192.0.0.8` is the IP
+of the NTP server you want to get the score from.

-You can also document commands to lint the code or run tests. These steps help to ensure high code quality and reduce the likelihood that the changes inadvertently break something. Having instructions for running tests is especially helpful if it requires external setup, such as starting a Selenium server for testing in a browser.
+## Prometheus Configuration

-## Authors and acknowledgment
-Show your appreciation to those who have contributed to the project.
+The URL parameter `target` can be controlled through relabelling.

-## License
-For open source projects, say how it is licensed.
+Example config:
+```YAML
+scrape_configs:
+  - job_name: 'ntppool'
+    static_configs:
+      - targets:
+        - 192.168.1.2
+        - 2003:db8::1
+    relabel_configs:
+      - source_labels: [__address__]
+        target_label: __param_target
+      - source_labels: [__param_target]
+        target_label: instance
+      - target_label: __address__
+        replacement: 127.0.0.1:43609  # The ntppool exporter's real hostname:port.
+```

-## Project status
-If you have run out of energy or time for your project, put a note at the top of the README saying that development has slowed down or stopped completely. Someone may choose to fork your project or volunteer to step in as a maintainer or owner, allowing your project to keep going. You can also make an explicit request for maintainers.
+Similarly to [blackbox_exporter](https://github.com/prometheus/blackbox_exporter),
+`ntppool-exporter` is meant to run on a few central machines and can be thought of
+like a "Prometheus proxy".
+
+### TLS and basic authentication
+
+The ntppool Exporter does **not** support TLS and basic authentication yet. 
+This may be added in a future release.
+
+## Scaling
+
+A single instance of `ntppool-exporter` should be able to query for a lot of servers. However, rate limits for upstream `ntppool.org` API endpoints may interfere.
+Furthermore, as this project is in its early stage, issues may currently prevent it from scaling.
+
+# Once you have it running
+
+It can be opaque to get started with all this. To make it
+easier for others, please consider contributing back your configurations to
+us.
+
+# Contributing
+If you have any ideas, enhancements, bug reports or general questions, please don't hesitate to [create a new issue](https://gitlab.com/adoralaura/ntppool-exporter/-/issues/new).
+
+If you want to contribute to this project, please read the [Contribution Guidelines](CONTRIBUTING.md)
--- a/1
+++ b/1
@ -0,0 +1 @@
+0.1.1
--- a/collector/collector.go
+++ b/collector/collector.go
@ -0,0 +1,118 @@
+/*
+Copyright 2024 Adora Laura Kalb <adora@lila.network>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package collector
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/netip"
+	"time"
+
+	"github.com/go-kit/log"
+	"github.com/go-kit/log/level"
+	"github.com/prometheus/client_golang/prometheus"
+	"golang.adora.codes/ntppool-exporter/models"
+)
+
+type Metrics struct {
+	NtpppolServerScore prometheus.Gauge
+}
+
+type Collector struct {
+	ctx     context.Context
+	target  netip.Addr
+	logger  log.Logger
+	metrics Metrics
+}
+
+func New(ctx context.Context, target netip.Addr, logger log.Logger, metrics Metrics) *Collector {
+	return &Collector{ctx: ctx, target: target, logger: logger, metrics: metrics}
+}
+
+// Describe implements Prometheus.Collector.
+func (c Collector) Describe(ch chan<- *prometheus.Desc) {
+	ch <- prometheus.NewDesc("dummy", "dummy", nil, nil)
+}
+
+// Collect implements Prometheus.Collector.
+func (c Collector) Collect(ch chan<- prometheus.Metric) {
+	logger := log.With(c.logger, "module", "scraper")
+	level.Debug(logger).Log("msg", "Starting scrape")
+	start := time.Now()
+	c.collect(ch, logger)
+	duration := time.Since(start).Seconds()
+	level.Debug(logger).Log("msg", "Finished scrape", "duration_seconds", duration)
+}
+
+func (c Collector) collect(ch chan<- prometheus.Metric, logger log.Logger) {
+	httpError := false
+	var serverApiScore float64 = 0
+	const apiEndpoint = "https://www.ntppool.org/scores/"
+	const apiQuery = "/json?limit=1&monitor=24"
+
+	url := apiEndpoint + c.target.String() + apiQuery
+
+	client := &http.Client{}
+	req, err := http.NewRequest("GET", url, nil)
+
+	if err != nil {
+		level.Error(logger).Log("msg", "Error sending HTTP request", "url", url, "message", err)
+		httpError = true
+	}
+	res, err := client.Do(req)
+	if err != nil {
+		level.Error(logger).Log("msg", "Error in HTTP response", "error", err)
+		return
+
+	}
+	defer res.Body.Close()
+
+	body, err := io.ReadAll(res.Body)
+	if err != nil {
+		level.Error(logger).Log("msg", "Error reading HTTP response body", "error", err)
+		return
+	}
+
+	var response models.ApiResponse
+
+	err = json.Unmarshal(body, &response)
+	if err != nil {
+		level.Error(logger).Log("msg", "Error unmarshaling JSON body", "error", err)
+		return
+	}
+
+	if !httpError {
+		serverApiScore = response.History[0].Score
+	}
+
+	// TODO: Test or delete
+	serverScoreMetric := prometheus.NewDesc("ntppool_server_score",
+		"Shows the server score currently assigned at ntppool.org",
+		nil, nil)
+
+	// TODO: Test or delete
+	//c.metrics.NtpppolServerScore.Add(serverApiScore)
+
+	// TODO: Test or delete
+	//Write latest value for each metric in the prometheus metric channel.
+	//Note that you can pass CounterValue, GaugeValue, or UntypedValue types here.
+	m1 := prometheus.MustNewConstMetric(serverScoreMetric, prometheus.GaugeValue, serverApiScore)
+	m1 = prometheus.NewMetricWithTimestamp(time.Now(), m1)
+	ch <- m1
+}
--- a/go.mod
+++ b/go.mod
@ -5,11 +5,28 @@ go 1.22.2
 require github.com/prometheus/client_golang v1.19.0

 require (
+	github.com/alecthomas/kingpin/v2 v2.4.0 // indirect
+	github.com/alecthomas/units v0.0.0-20211218093645-b94a6e3cc137 // 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/go-kit/log v0.2.1 // indirect
+	github.com/go-logfmt/logfmt v0.5.1 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/jpillora/backoff v1.0.0 // indirect
+	github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f // indirect
 	github.com/prometheus/client_model v0.5.0 // indirect
 	github.com/prometheus/common v0.48.0 // indirect
+	github.com/prometheus/exporter-toolkit v0.11.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/xhit/go-str2duration/v2 v2.1.0 // indirect
+	golang.org/x/crypto v0.18.0 // indirect
+	golang.org/x/net v0.20.0 // indirect
+	golang.org/x/oauth2 v0.16.0 // indirect
+	golang.org/x/sync v0.5.0 // indirect
 	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/protobuf v1.32.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
--- a/go.sum
+++ b/go.sum
@ -1,16 +1,69 @@
+github.com/alecthomas/kingpin/v2 v2.4.0 h1:f48lwail6p8zpO1bC4TxtqACaGqHYA22qkHjHpqDjYY=
+github.com/alecthomas/kingpin/v2 v2.4.0/go.mod h1:0gyi0zQnjuFk8xrkNKamJoyUo382HRL7ATRpFZCw6tE=
+github.com/alecthomas/units v0.0.0-20211218093645-b94a6e3cc137 h1:s6gZFSlWYmbqAuRjVTiNNhvNRfY2Wxp9nhfyel4rklc=
+github.com/alecthomas/units v0.0.0-20211218093645-b94a6e3cc137/go.mod h1:OMCwj8VM1Kc9e19TLln2VL61YJF0x1XFtfdL4JdbSyE=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/coreos/go-systemd/v22 v22.5.0 h1:RrqgGjYQKalulkV8NGVIfkXQf6YYmOyiJKk8iXXhfZs=
+github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-kit/log v0.2.1 h1:MRVx0/zhvdseW+Gza6N9rVzU/IVzaeE1SFI4raAhmBU=
+github.com/go-kit/log v0.2.1/go.mod h1:NwTd00d/i8cPZ3xOwwiv2PO5MOcx78fFErGNcVmBjv0=
+github.com/go-logfmt/logfmt v0.5.1 h1:otpy5pqBCBZ1ng9RQ0dPu4PN7ba75Y/aA+UpowDyNVA=
+github.com/go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
+github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
+github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/jpillora/backoff v1.0.0 h1:uvFg412JmmHBHw7iwprIxkPMI+sGQ4kzOWsMeHnm2EA=
+github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
+github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f h1:KUppIJq7/+SVif2QVs3tOP0zanoHgBEVAwHxUSIzRqU=
+github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_golang v1.19.0 h1:ygXvpU1AoN1MhdzckN+PyD9QJOSD4x7kmXYlnfbA6JU=
 github.com/prometheus/client_golang v1.19.0/go.mod h1:ZRM9uEAypZakd+q/x7+gmsvXdURP+DABIEIjnmDdp+k=
 github.com/prometheus/client_model v0.5.0 h1:VQw1hfvPvk3Uv6Qf29VrPF32JB6rtbgI6cYPYQjL0Qw=
 github.com/prometheus/client_model v0.5.0/go.mod h1:dTiFglRmd66nLR9Pv9f0mZi7B7fk5Pm3gvsjB5tr+kI=
 github.com/prometheus/common v0.48.0 h1:QO8U2CdOzSn1BBsmXJXduaaW+dY/5QLjfB8svtSzKKE=
 github.com/prometheus/common v0.48.0/go.mod h1:0/KsvlIEfPQCQ5I2iNSAWKPZziNCvRs5EC6ILDTlAPc=
+github.com/prometheus/exporter-toolkit v0.11.0 h1:yNTsuZ0aNCNFQ3aFTD2uhPOvr4iD7fdBvKPAEGkNf+g=
+github.com/prometheus/exporter-toolkit v0.11.0/go.mod h1:BVnENhnNecpwoTLiABx7mrPB/OLRIgN74qlQbV+FK1Q=
 github.com/prometheus/procfs v0.12.0 h1:jluTpSng7V9hY0O2R9DzzJHYb2xULk9VTR1V1R/k6Bo=
 github.com/prometheus/procfs v0.12.0/go.mod h1:pcuDEFsWDnvcgNzo4EEweacyhjeA9Zk3cnaOZAZEfOo=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+github.com/xhit/go-str2duration/v2 v2.1.0 h1:lxklc02Drh6ynqX+DdPyp5pCKLUQpRT8bp8Ydu2Bstc=
+github.com/xhit/go-str2duration/v2 v2.1.0/go.mod h1:ohY8p+0f07DiV6Em5LKB0s2YpLtXVyJfNt1+BlmyAsU=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.18.0 h1:PGVlW0xEltQnzFZ55hkuX5+KLyrMYhHld1YHO4AKcdc=
+golang.org/x/crypto v0.18.0/go.mod h1:R0j02AL6hcrfOiy9T4ZYp/rcWeMxM3L6QYxlOuEG1mg=
+golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
+golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo=
+golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
+golang.org/x/oauth2 v0.16.0 h1:aDkGMBSYxElaoP81NpoUoz2oo2R2wHdZpGToUxfyQrQ=
+golang.org/x/oauth2 v0.16.0/go.mod h1:hqZ+0LWXsiVoZpeld6jVt06P3adbS2Uu911W1SsJv2o=
+golang.org/x/sync v0.5.0 h1:60k92dhOjHxJkrqnwsfl8KuaHbn/5dl0lUPUklKo3qE=
+golang.org/x/sync v0.5.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
 golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/appengine v1.6.7 h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6c=
+google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.32.0 h1:pPC6BG5ex8PDFnkbrGU3EixyhKcQ2aDuBS36lqK/C7I=
 google.golang.org/protobuf v1.32.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
--- a/main.go
+++ b/main.go
@ -0,0 +1,154 @@
+/*
+Copyright 2024 Adora Laura Kalb <adora@lila.network>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+	"net/http"
+	"net/netip"
+	"os"
+
+	"github.com/alecthomas/kingpin/v2"
+	"github.com/go-kit/log"
+	"github.com/go-kit/log/level"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"github.com/prometheus/common/promlog"
+	"github.com/prometheus/common/promlog/flag"
+	"github.com/prometheus/common/version"
+	"github.com/prometheus/exporter-toolkit/web"
+	webflag "github.com/prometheus/exporter-toolkit/web/kingpinflag"
+	"golang.adora.codes/ntppool-exporter/collector"
+)
+
+const (
+	namespace = "ntppool"
+)
+
+var (
+	metricsPath = kingpin.Flag(
+		"web.telemetry-path",
+		"Path under which to expose metrics.",
+	).Default("/metrics").String()
+	//appListenIP  = kingpin.Flag("web.listen-address", "Addresses on which to expose metrics and web interface").Default(":43609").String()
+	toolkitFlags = webflag.AddFlags(kingpin.CommandLine, ":43609")
+
+	// Metrics about the SNMP exporter itself.
+	ntppoolRequestErrors = promauto.NewCounter(
+		prometheus.CounterOpts{
+			Namespace: namespace,
+			Name:      "request_errors_total",
+			Help:      "Errors in requests to the SNMP exporter",
+		},
+	)
+)
+
+func handler(w http.ResponseWriter, r *http.Request, logger log.Logger, exporterMetrics collector.Metrics) {
+
+	// /metrics&target=2003%3Adb8%3A%3A1
+	// /metrics&target=1.2.3.4
+	query := r.URL.Query()
+
+	target := query.Get("target")
+	if len(query["target"]) != 1 || target == "" {
+		http.Error(w, "'target' parameter must be specified once", http.StatusBadRequest)
+		ntppoolRequestErrors.Inc()
+		return
+	}
+
+	targetIP, ipError := netip.ParseAddr(target)
+	if ipError != nil {
+		http.Error(w, "'target' parameter must be a valid IPv4/IPv6 address", http.StatusBadRequest)
+		ntppoolRequestErrors.Inc()
+		return
+	}
+
+	logger = log.With(logger, "target", target)
+	registry := prometheus.NewRegistry()
+	c := collector.New(r.Context(), targetIP, logger, exporterMetrics)
+	registry.MustRegister(c)
+	// Delegate http serving to Prometheus client library, which will call collector.Collect.
+	h := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
+	h.ServeHTTP(w, r)
+}
+
+func main() {
+	promlogConfig := &promlog.Config{}
+	flag.AddFlags(kingpin.CommandLine, promlogConfig)
+	kingpin.Version(version.Print("ntppool_exporter"))
+	kingpin.HelpFlag.Short('h')
+	kingpin.Parse()
+	logger := promlog.New(promlogConfig)
+
+	level.Info(logger).Log("msg", "Starting ntppool_exporter", "version", version.Info())
+	level.Info(logger).Log("build_context", version.BuildContext())
+
+	exporterMetrics := collector.Metrics{
+		NtpppolServerScore: promauto.NewGauge(
+			prometheus.GaugeOpts{
+				Namespace: namespace,
+				Name:      "server_score",
+				Help:      "Current ntppool server score",
+			},
+		),
+	}
+
+	http.HandleFunc(*metricsPath, func(w http.ResponseWriter, r *http.Request) {
+		handler(w, r, logger, exporterMetrics)
+	})
+
+	metricsPathValue := *metricsPath
+
+	if *metricsPath != "/" && *metricsPath != "" {
+		landingConfig := web.LandingConfig{
+			Name:        "ntppool Exporter",
+			Description: "Prometheus Exporter for SNMP targets",
+			Version:     version.Info(),
+			Form: web.LandingForm{
+				Action: metricsPathValue,
+				Inputs: []web.LandingFormInput{
+					{
+						Label:       "Target",
+						Type:        "text",
+						Name:        "target",
+						Placeholder: "X.X.X.X/[::X]",
+						Value:       "::1",
+					},
+				},
+			},
+			Links: []web.LandingLinks{
+				{
+					Address: *metricsPath,
+					Text:    "Metrics",
+				},
+			},
+		}
+
+		landingPage, err := web.NewLandingPage(landingConfig)
+		if err != nil {
+			level.Error(logger).Log("err", err)
+			os.Exit(1)
+		}
+		http.Handle("/", landingPage)
+	}
+
+	srv := &http.Server{}
+	if err := web.ListenAndServe(srv, toolkitFlags, logger); err != nil {
+		level.Error(logger).Log("msg", "Error starting HTTP server", "err", err)
+		os.Exit(1)
+	}
+}
--- a/models/api_response.go
+++ b/models/api_response.go
@ -0,0 +1,41 @@
+/*
+Copyright 2024 Adora Laura Kalb <adora@lila.network>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package models
+
+import "time"
+
+type ApiResponse struct {
+	History  []ApiResponseHistory `json:"history"`
+	Monitors []struct {
+		ID        int       `json:"id"`
+		Name      string    `json:"name"`
+		Type      string    `json:"type"`
+		Timestamp time.Time `json:"ts"`
+		Score     float64   `json:"score"`
+		Status    string    `json:"status"`
+	} `json:"monitors"`
+	Server struct {
+		IP string `json:"ip"`
+	} `json:"server"`
+}
+
+type ApiResponseHistory struct {
+	Timestamp int     `json:"ts"`
+	Step      int     `json:"step"`
+	Score     float64 `json:"score"`
+	MonitorID int     `json:"monitor_id"`
+}
Author	SHA1	Message	Date
Adora Laura Kalb	e84f93efca	update changelog	2024-04-17 20:14:09 +02:00
Adora Laura Kalb	0ca9b4e06c	Merge branch 'feature-small-updates' into 'main' update small changes See merge request adoralaura/ntppool-exporter!2	2024-04-17 18:10:05 +00:00
Adora Laura Kalb	bddc702ef3	fix MISSING in Debug log	2024-04-17 20:08:30 +02:00
Adora Laura Kalb	046324f098	add binary folders to gitignore	2024-04-17 20:07:24 +02:00
Adora Laura Kalb	2d88d8a13f	remove unneeded label	2024-04-17 20:07:00 +02:00
Adora Laura Kalb	775eb974ab	update metric name	2024-04-17 20:06:42 +02:00
Adora Laura Kalb	9fbe505f33	updaet changelog and bump version	2024-04-17 19:59:34 +02:00
Adora Laura Kalb	68823aa602	Merge branch '2-nil-reference-pointer-exception-when-getting-queried-by-prometheus' into 'main' Resolve "Nil reference pointer exception when getting queried by Prometheus" Closes #2 See merge request adoralaura/ntppool-exporter!1	2024-04-17 17:38:21 +00:00
Adora Laura Kalb	02f0c19ba5	Resolve "Nil reference pointer exception when getting queried by Prometheus"	2024-04-17 17:38:21 +00:00
Adora Laura Kalb	3df65ef60f	remove unnecessary CMD line	2024-04-17 18:14:01 +02:00
Adora Laura Kalb	af5f5fd6c0	add dockerfile	2024-04-17 15:34:23 +02:00
Adora Laura Kalb	5493744f19	describe project	2024-04-17 15:20:58 +02:00
Adora Laura Kalb	aafd0fa260	add changelog	2024-04-17 15:20:39 +02:00
Adora Laura Kalb	deb4020df0	add mvp	2024-04-17 12:47:40 +02:00
Adora Laura Kalb	9ca9ef1b9f	add license	2024-04-14 18:25:00 +02:00
Adora Laura Kalb	bedcd39082	add gitignore	2024-04-14 18:23:39 +02:00
Adora Laura Kalb	afea91fded	add contributing guide and maintainers file	2024-04-14 17:43:41 +02:00
				`@ -0,0 +1 @@`
				`* Adora Laura Kalb <adora@lila.network> @adoralaura`