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Production-ready Entrypoint Bash Script for layered Spring Boot Applications
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| #!/bin/bash | |
| JAVA_OPTS="${JAVA_OPTS:="-Dfile.encoding=UTF-8 -Duser.timezone=UTC -XX:NativeMemoryTracking=summary -XX:+HeapDumpOnOutOfMemoryError"}" | |
| PORT="${PORT:="8080"}" | |
| term_handler() { | |
| if [ $pid -ne 0 ]; then | |
| kill -SIGTERM "$pid" | |
| wait "$pid" | |
| fi | |
| exit 143 # 128 + 15 -- SIGTERM | |
| } | |
| trap 'kill ${!}; term_handler' SIGTERM | |
| cd /srv/"$APP" || exit | |
| /opt/java/bin/java $JAVA_OPTS org.springframework.boot.loader.JarLauncher --bind 0.0.0.0:$PORT & | |
| pid="$!" | |
| while true; do | |
| # Check if process is still running | |
| kill -0 "$pid" 2>/dev/null | |
| if [ $? -ne 0 ]; then | |
| echo "Process $pid is not running, shutting down the container." | |
| term_handler | |
| fi | |
| sleep 5 | |
| done |
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