# HTTP's error pages [![Release version][badge-release]][releases] ![Project language][badge-lang] [![Build Status][badge-ci-build]][actions-page] [![Release Status][badge-ci-release]][actions-page] [![Coverage][badge-coverage]][coverage] [![Image size][badge-image-size]][docker-hub] [![License][badge-license]][license] One day you may want to replace the standard error pages of your HTTP server with something more original and pretty. That's what this repository was created for :) It contains: - Simple error pages generator, written on Go - Single-page error page templates with different designs (located in the [templates](https://github.com/tarampampam/error-pages/tree/master/templates) directory) - Fast and lightweight HTTP server - Already generated error pages (sources can be [found here][preview-sources], the **demonstration** is always accessible [here][preview-demo]) ## 🔥 Features list - HTTP server written on Go, with the extremely fast [FastHTTP][fasthttp] under the hood - Respects the `Content-Type` HTTP header (and `X-Format`) value and responds with the corresponding format (supported formats is `json` and `xml`) - Writes logs in `json` format - Contains healthcheck endpoint (`/healthz`) - Contains metrics endpoint (`/metrics`) in Prometheus format - Lightweight docker image _(~3.7Mb compressed size)_, distroless and uses the unleveled user by default - [Go-template](https://pkg.go.dev/text/template) tags are allowed in the templates - Ready for integration with [Traefik][traefik] ([error pages customization](https://doc.traefik.io/traefik/middlewares/http/errorpages/)) and [Ingress-nginx][ingress-nginx] - Fully configurable (take a look at the [configuration file](https://github.com/tarampampam/error-pages/blob/master/error-pages.yml) and [project Wiki][wiki]) - Distributed using docker image and compiled binary files ## 🧩 Install Download the latest binary file for your os/arch from the [releases page][releases] or use our docker image: [![image stats](https://dockeri.co/image/tarampampam/error-pages)][docker-hub-tags] | Registry | Image | |-----------------------------------|-----------------------------------| | [Docker Hub][docker-hub] | `tarampampam/error-pages` | | [GitHub Container Registry][ghcr] | `ghcr.io/tarampampam/error-pages` | > Using the `latest` tag for the docker image is highly discouraged because of possible backward-incompatible changes during **major** upgrades. Please, use tags in `X.Y.Z` format ## 🛠 Usage Please, take a look at [our Wiki][wiki] for the common usage stories: - [HTTP server][wiki-http-server] (routes, formats, flags and environment variables) - [Pages generator][wiki-generator] (build your own error page set) - [Static error pages][wiki-static-error-pages] (extract generated static error pages from the docker image) - [Usage with nginx][wiki-usage-with-nginx] (include our error pages into an image with nginx) - [Usage with Traefik and local Docker Compose][wiki-traefik-docker-compose] (it's a good starting point for the tests) - [Usage with Traefik and Docker Swarm][wiki-traefik-swarm] - [Kubernetes & ingress nginx][wiki-k8s-ingress-nginx] [wiki]:https://github.com/tarampampam/error-pages/wiki [wiki-http-server]:https://github.com/tarampampam/error-pages/wiki/HTTP-server [wiki-generator]:https://github.com/tarampampam/error-pages/wiki/Generator [wiki-static-error-pages]:https://github.com/tarampampam/error-pages/wiki/Static-error-pages [wiki-usage-with-nginx]:https://github.com/tarampampam/error-pages/wiki/Usage-with-nginx [wiki-traefik-swarm]:https://github.com/tarampampam/error-pages/wiki/Traefik-(docker-swarm) [wiki-traefik-docker-compose]:https://github.com/tarampampam/error-pages/wiki/Traefik-(docker-compose) [wiki-k8s-ingress-nginx]:https://github.com/tarampampam/error-pages/wiki/Kubernetes-&-ingress-nginx ## 🦾 Performance Used hardware: - Intel® Core™ i7-10510U CPU @ 1.80GHz × 8 - 16 GiB RAM ```shell $ ulimit -aH | grep file -f: file size (blocks) unlimited -c: core file size (blocks) unlimited -n: file descriptors 1048576 -x: file locks unlimited $ wrk --version | head -n 1 wrk 4.2.0 [epoll] Copyright (C) 2012 Will Glozer $ wrk -t12 -c400 -d30s http://127.0.0.1:8080/500.html Running 30s test @ http://127.0.0.1:8080/500.html 12 threads and 400 connections Thread Stats Avg Stdev Max +/- Stdev Latency 50.06ms 61.15ms 655.79ms 85.54% Req/Sec 1.07k 363.14 2.40k 69.24% 383014 requests in 30.08s, 2.14GB read Requests/sec: 12731.07 Transfer/sec: 72.79MB ``` FS & memory usage stats during the test:

## 🪂 Templates | Name | Preview | |:-----------------:|:------------------------------------------------------------------:| | `ghost` | [![ghost][ghost-screen]][ghost-link] | | `l7-light` | [![l7-light][l7-light-screen]][l7-light-link] | | `l7-dark` | [![l7-dark][l7-dark-screen]][l7-dark-link] | | `shuffle` | [![shuffle][shuffle-screen]][shuffle-link] | | `noise` | [![noise][noise-screen]][noise-link] | | `hacker-terminal` | [![hacker-terminal][hacker-terminal-screen]][hacker-terminal-link] | | `cats` | [![cats][cats-screen]][cats-link] | > Note: `noise` template highly uses the CPU, be careful [ghost-screen]:https://hsto.org/webt/oj/cl/4k/ojcl4ko_cvusy5xuki6efffzsyo.gif [ghost-link]:https://tarampampam.github.io/error-pages/ghost/404.html [l7-light-screen]:https://hsto.org/webt/xc/iq/vt/xciqvty-aoj-rchfarsjhutpjny.png [l7-light-link]:https://tarampampam.github.io/error-pages/l7-light/404.html [l7-dark-screen]:https://hsto.org/webt/s1/ih/yr/s1ihyrqs_y-sgraoimfhk6ypney.png [l7-dark-link]:https://tarampampam.github.io/error-pages/l7-dark/404.html [shuffle-screen]:https://hsto.org/webt/7w/rk/3m/7wrk3mrzz3y8qfqwovmuvacu-bs.gif [shuffle-link]:https://tarampampam.github.io/error-pages/shuffle/404.html [noise-screen]:https://hsto.org/webt/42/oq/8y/42oq8yok_i-arrafjt6hds_7ahy.gif [noise-link]:https://tarampampam.github.io/error-pages/noise/404.html [hacker-terminal-screen]:https://hsto.org/webt/5s/l0/p1/5sl0p1_ud_nalzjzsj5slz6dfda.gif [hacker-terminal-link]:https://tarampampam.github.io/error-pages/hacker-terminal/404.html [cats-screen]:https://hsto.org/webt/_g/y-/ke/_gy-keqinz-3867jbw36v37-iwe.jpeg [cats-link]:https://tarampampam.github.io/error-pages/cats/404.html ## 🦾 Contributors I want to say a big thank you to everyone who contributed to this project: [![contributors](https://contrib.rocks/image?repo=tarampampam/error-pages)][contributors] [contributors]:https://github.com/tarampampam/error-pages/graphs/contributors ## 📰 Changes log [![Release date][badge-release-date]][releases] [![Commits since latest release][badge-commits]][commits] Changes log can be [found here][changelog]. ## 👾 Support [![Issues][badge-issues]][issues] [![Issues][badge-prs]][prs] If you find any bugs in the project, please [create an issue][new-issue] in the current repository. ## 📖 License This is open-sourced software licensed under the [MIT License][license]. [badge-ci-build]:https://img.shields.io/github/workflow/status/tarampampam/error-pages/tests?maxAge=30&label=tests&logo=github [badge-ci-release]:https://img.shields.io/github/workflow/status/tarampampam/error-pages/release?maxAge=30&label=release&logo=github [badge-coverage]:https://img.shields.io/codecov/c/github/tarampampam/error-pages/master.svg?maxAge=30 [badge-release]:https://img.shields.io/github/release/tarampampam/error-pages.svg?maxAge=30 [badge-image-size]:https://img.shields.io/docker/image-size/tarampampam/error-pages/latest?maxAge=30 [badge-lang]:https://img.shields.io/github/go-mod/go-version/tarampampam/error-pages?longCache=true [badge-license]:https://img.shields.io/github/license/tarampampam/error-pages.svg?longCache=true [badge-release-date]:https://img.shields.io/github/release-date/tarampampam/error-pages.svg?maxAge=180 [badge-commits]:https://img.shields.io/github/commits-since/tarampampam/error-pages/latest.svg?maxAge=45 [badge-issues]:https://img.shields.io/github/issues/tarampampam/error-pages.svg?maxAge=45 [badge-prs]:https://img.shields.io/github/issues-pr/tarampampam/error-pages.svg?maxAge=45 [coverage]:https://codecov.io/gh/tarampampam/error-pages [actions-page]:https://github.com/tarampampam/error-pages/actions [docker-hub]:https://hub.docker.com/r/tarampampam/error-pages [docker-hub-tags]:https://hub.docker.com/r/tarampampam/error-pages/tags [license]:https://github.com/tarampampam/error-pages/blob/master/LICENSE [releases]:https://github.com/tarampampam/error-pages/releases [commits]:https://github.com/tarampampam/error-pages/commits [changelog]:https://github.com/tarampampam/error-pages/blob/master/CHANGELOG.md [issues]:https://github.com/tarampampam/error-pages/issues [new-issue]:https://github.com/tarampampam/error-pages/issues/new/choose [prs]:https://github.com/tarampampam/error-pages/pulls [ghcr]:https://github.com/users/tarampampam/packages/container/package/error-pages [fasthttp]:https://github.com/valyala/fasthttp [preview-sources]:https://github.com/tarampampam/error-pages/tree/gh-pages [preview-demo]:https://tarampampam.github.io/error-pages/ [traefik]:https://github.com/traefik/traefik [ingress-nginx]:https://github.com/kubernetes/ingress-nginx/tree/main/charts/ingress-nginx