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21
LICENSE
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21
LICENSE
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MIT License
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Copyright (c) 2021 Baptiste DE RENZO
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is furnished
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to do so, subject to the following conditions:
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The above copyright notice and this permission notice (including the next
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paragraph) shall be included in all copies or substantial portions of the
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Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
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OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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27
README.md
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README.md
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# Tinystatus
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tinystatus generate an html status page via shell script.
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## Features
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* Parallel checks
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* HTTP, ping, port checks
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* HTTP expected status code (401, ...)
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* Minimal dependencies (curl, nc and coreutils)
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* Easy configuration and customisation
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* Incident history (manual)
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## Demo
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An example site is available [here](https://lab.bdro.fr/tinystatus/).
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## Setup
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To install tinystatus:
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* Clone the repository and go to the created directory
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* Edit the checks file `checks.list`
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* To add incidents or maintenance, edit `incidents.list`
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* Generate status page `./tinystatus > index.html`
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* Serve the page with your favorite web server
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checks.list
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checks.list
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http | 200 | Google website | https://google.com
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http | 404 | Google 404 | https://google.com/dummy
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ping | 0 | Google ping | 8.8.8.8
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port | 0 | Google dns | 8.8.8.8:53
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incidents.list
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incidents.list
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2021/02/01 08:00 - Site unavailable. Resolved after 5 minutes of downtime.
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2021/01/01 09:00 - User may have problem with API. Incident resolved after 1 hour.
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tinystatus
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tinystatus
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#!/usr/bin/env sh
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title=tinystatus
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timeout=10
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tmp=${tmpdir:-/tmp/tinystatus}
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useragent="User-Agent: Mozilla/5.0 (X11; Linux x86_64; Debian) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36"
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command_exists(){
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if ! command -v "${1}" >/dev/null 2>&1; then
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echo >&2 "Error: ${1} missing. Please install it"
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exit 1
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fi
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}
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get_element(){
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echo "${2}" | awk -v col="${1}" -F'|' '{gsub(/^[ \t]+|[ \t]+$/, "", $col); print $col}'
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}
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check(){
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ctype="${1}"
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host="${2}"
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name="${3}"
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expectedcode="${4}"
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if [ ${ctype} = 'http' ]; then
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statuscode="$(curl -sSkLo /dev/null -H "${useragent}" -m "${timeout}" -w "%{http_code}" "${host}" 2> "${tmp}/ko/${name}.error")"
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elif [ ${ctype} = 'port' ]; then
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error="$(nc -w "${timeout}" -zv $(echo "${host}" | sed 's,:, ,') 2>&1)"
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statuscode=$?
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[ ${statuscode} -ne 0 ] && echo "${error}" > "${tmp}/ko/${name}.error"
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elif [ ${ctype} = 'ping' ]; then
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ping -W "${timeout}" -c 1 "${host}" >/dev/null 2>&1
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statuscode=$?
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[ ${statuscode} -ne 0 ] && echo 'Host unreachable' > "${tmp}/ko/${name}.error"
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fi
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# verity status and write files
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if [ ${statuscode} -eq ${expectedcode} ]; then
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echo "Status code: ${statuscode}" > "${tmp}/ok/${name}.status"
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else
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echo "Status code: ${statuscode}" > "${tmp}/ko/${name}.status"
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fi
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if [ -s "${tmp}/ko/${name}.error" ]; then
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sed "${tmp}/ko/${name}.error" \
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-e 's,curl: ([0-9]*) ,,' \
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-e 's,.*) failed: ,,' > "${tmp}/ko/${name}.status"
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fi
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}
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command_exists 'curl'
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command_exists 'nc'
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rm -r "${tmp}"
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mkdir -p "${tmp}/ok" "${tmp}/ko" || exit 1
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while IFS='\n' read -r line; do
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ctype="$(get_element 1 "${line}")"
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code="$(get_element 2 "${line}")"
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name="$(get_element 3 "${line}")"
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host="$(get_element 4 "${line}")"
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check "${ctype}" "${host}" "${name}" "${code}" &
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done < "${1:-checks.list}"
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wait
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cat << EOF
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<!DOCTYPE html><html lang="en"><head><title>${title}</title><style>
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body { font-family: segoe ui,Roboto,Oxygen-Sans,Ubuntu,Cantarell,helvetica neue,Verdana,sans-serif; }
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h1 { margin-top: 30px; }
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ul { padding: 0px; }
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li { list-style: none; margin-bottom: 2px; padding: 5px; border-bottom: 1px solid #ddd; }
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.container { max-width: 600px; width: 100%; margin: 15px auto; }
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.panel { text-align: center; padding: 10px; border: 0px; border-radius: 5px; }
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.failed-bg { color: white; background-color: #E25D6A; }
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.success-bg { color: white; background-color: #52B86A; }
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.failed { color: #E25D6A; }
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.success { color: #52B86A; }
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.small { font-size: 80%; }
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.status { float: right; }
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</style></head>
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<body>
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<div class='container'>
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<h1>Global status</h1>
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EOF
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outagenb=$(find ${tmp}/ko -mindepth 1 | grep -c 'status$')
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if [ ${outagenb} -ne 0 ]; then
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echo "<ul><li class='panel failed-bg'>${outagenb} Outage(s)</li></ul>"
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else
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echo "<ul><li class='panel success-bg'>All Systems Operational</li></ul>"
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fi
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cat << EOF
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<h1>Services</h1>
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<ul>
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EOF
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for file in ${tmp}/ko/*.status; do
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[ -e "${file}" ] || continue
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name=$(basename "${file}" | sed 's,.status$,,')
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status=$(cat "${file}")
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echo "<li>${name} <span class='small failed'>(${status})</span><span class='status failed'>Disrupted</span></li>"
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done
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for file in ${tmp}/ok/*.status; do
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[ -e "${file}" ] || continue
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name=$(basename "${file}" | sed 's,.status$,,')
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echo "<li>${name} <span class='status success'>Operationnal</span></li>"
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done
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cat << EOF
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</ul>
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<p class=small> Last check: $(date +"%Y/%m/%d %H:%M:%S")</p>
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<h1>Incidents</h1>
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EOF
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sed 's|^\(.*\)$|<p>\1</p>|' "${2:-incidents.list}" 2>/dev/null || echo "<p>No incident reported yet ;)</p>"
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cat <<EOF
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</div>
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</body></html>
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EOF
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