Fix misp-core shutdown (supervisord with exec as PID 1)

Author: HiS3

core/Dockerfile

@@ -11,7 +11,8 @@ FROM "${DOCKER_HUB_PROXY}python:3.12-slim-bookworm" AS php-base
     RUN apt-get update; apt-get install -y --no-install-recommends \
         lsb-release \
         ca-certificates \
-        curl
+        curl \
+        tini
 
 
 FROM php-base AS composer-build

core/files/entrypoint.sh

@@ -77,4 +77,4 @@ export NGINX_SET_REAL_IP_FROM=${NGINX_SET_REAL_IP_FROM}
 export NGINX_CLIENT_MAX_BODY_SIZE=${NGINX_CLIENT_MAX_BODY_SIZE:-50M}
 
 # start supervisord using the main configuration file so we have a socket interface
-/usr/local/bin/supervisord -c /etc/supervisor/supervisord.conf
+exec /usr/bin/tini -- /usr/local/bin/supervisord -c /etc/supervisor/supervisord.conf