77 lines
1.8 KiB
Bash
Executable File
77 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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##################################################
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# Mount dir #
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# - /opt/kafka/data #
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# - /opt/kafka/logs #
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# ENV #
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# - KAFKA_OPTS #
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# - _CONF_* #
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##################################################
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set -euo pipefail
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export LANG=en_US.UTF-8
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trap Quit EXIT
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PIDS=
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GOT_SIGTERM=
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function Print {
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local file=/dev/null
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[ '-f' = "$1" ] && file=$2 && shift && shift
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date +"[%F %T] $*" | tee -a $file
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}
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function Quit {
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while :; do
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pkill -f java && Print killing java ... || break
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sleep 1
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done
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Print Container stopped.
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test -n "$GOT_SIGTERM"
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}
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function Usage {
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Print 'This container should run with
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**root user**
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**/opt/kafka/{data,logs} mounted from host**
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'
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}
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function ModifyConf {
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Print Modify server.properties ...
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local kv=
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local conf='config/server.properties'
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while read kv; do
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[ -z "$kv" ] && break
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Print Modify property: ${kv%%=*} ...
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sed -i "/^${kv%%=*} *=/d" $conf
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echo "$kv" >> $conf
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done <<< "$(env | grep '^_CONF_' | sed 's/_CONF_//')"
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}
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function StartProc {
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Print Start kafka ...
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./bin/kafka-server-start.sh ./config/server.properties --override log.dirs=./data \
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&>> logs/kafka.out &
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PIDS="$PIDS $!"
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}
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function Main {
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local pid=
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cd /opt/kafka
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Usage
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ModifyConf
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StartProc
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trap "GOT_SIGTERM=1; Print Got SIGTERM ..." SIGTERM
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while [ -z "$GOT_SIGTERM" ] && sleep 1; do
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for pid in $PIDS; do
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[ ! -e /proc/$pid ] && Print Unexpected error! && exit
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done
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done
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}
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# Start here
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Main
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