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https://github.com/itzg/docker-minecraft-server.git
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2fb01b4adf
* Cherry-pick: Fixing AUTOPAUSE on Raspberry Pi 4s (#708) * implement autopause interface selection * concentrate ps calls in function file * wording and add note about PAPER's etc watchdogs
43 lines
1.1 KiB
Bash
43 lines
1.1 KiB
Bash
#!/bin/bash
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current_uptime() {
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echo $(awk '{print $1}' /proc/uptime | cut -d . -f 1)
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}
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java_running() {
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[[ $( ps -a -o stat,comm | grep 'java' | awk '{ print $1 }') =~ ^S.*$ ]]
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}
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java_process_exists() {
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[[ -n "$(ps -a -o comm | grep 'java')" ]]
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}
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rcon_client_exists() {
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[[ -n "$(ps -a -o comm | grep 'rcon-cli')" ]]
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}
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mc_server_listening() {
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[[ -n $(netstat -tln | grep -e "0.0.0.0:$SERVER_PORT" -e ":::$SERVER_PORT" | grep LISTEN) ]]
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}
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java_clients_connected() {
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local connections
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connections=$(netstat -tn | grep ":$SERVER_PORT" | grep ESTABLISHED)
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if [[ -z "$connections" ]] ; then
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return 1
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fi
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IFS=$'\n'
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connections=($connections)
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unset IFS
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# check that at least one external address is not localhost
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# remember, that the host network mode does not work with autopause because of the knockd utility
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for (( i=0; i<${#connections[@]}; i++ ))
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do
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if [[ ! $(echo "${connections[$i]}" | awk '{print $5}') =~ ^localhost$|^127(?:\.[0-9]+){0,2}\.[0-9]+$|^(?:0*\:)*?:?0*1$ ]] ; then
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# not localhost
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return 0
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fi
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done
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return 1
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}
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