58 lines
1.6 KiB
Bash
Executable File
58 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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# decription: This script uses mcapi.us to determine
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# the status of a Minecraft server and reports
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# its findings back to a Healthchecks instance
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# at $HEALTHCHECKS_URL.
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#
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# author: david@socialnerds.org
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# version: 0.1
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# license: MIT
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#
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# usage: ./mcapi.sh <hostname/ip> <healthchecks id>
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MCAPI_URL="https://mcapi.us/server"
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CURL_OPTIONS="-fsS -m 10 --retry 5"
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CURL_CMD="curl $CURL_OPTIONS"
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HEALTHCHECKS_URL="https://checks.socialnerds.org/ping"
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DEPENDENCIES="curl jq"
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# check for missing dependencies (and exit on failure)
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for DEPENDENCY in $DEPENDENCIES; do
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if [ ! $(command -v $DEPENDENCY) ]; then
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echo "missing dependency [$DEPENDENCY]"
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exit 2
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fi
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done
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# signal script start to healthchecks
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if [ $2 ]; then
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HEALTHCHECKS_ID="$2"
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$CURL_CMD -o /dev/null $HEALTHCHECKS_URL/$HEALTHCHECKS_ID/start
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fi
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# get server status
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if [ $1 ]; then
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IP="$1"
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URL="$MCAPI_URL/status?ip=$IP"
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STATUS=$($CURL_CMD $URL | jq --raw-output '.status')
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if [ $STATUS == "success" ]; then
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NOW=$($CURL_CMD $URL | jq --raw-output '.players.now')
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MAX=$($CURL_CMD $URL | jq --raw-output '.players.max')
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# signal script success to healthchecks
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if [ $HEALTHCHECKS_ID ]; then
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$CURL_CMD -o /dev/null --data-raw "Online players: $NOW/$MAX" $HEALTHCHECKS_URL/$HEALTHCHECKS_ID
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fi
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else
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# signal script failure to healthchecks
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if [ $HEALTHCHECKS_ID ]; then
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$CURL_CMD -o /dev/null $HEALTHCHECKS_URL/$HEALTHCHECKS_ID/fail
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fi
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fi
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else
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echo "first option must be the hostname/ip of a minecraft server"
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exit 1
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fi
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exit 0
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