migrate to alpine 3.22

Signed-off-by: Lev Rusanov <30170278+JDM170@users.noreply.github.com>

Dockerfile

@@ -1,8 +1,9 @@
-FROM debian:12
+FROM alpine:3.22
 
-RUN apt update && \
-    apt install -y minidlna minissdpd net-tools iproute2
+RUN apk add --no-cache dumb-init minidlna minissdpd net-tools iproute2
 
 COPY --chmod=755 files/start.sh /opt/start.sh
 
-ENTRYPOINT ["/opt/start.sh"]
+VOLUME ["/var/lib/minidlna"]
+
+ENTRYPOINT ["/usr/bin/dumb-init", "/opt/start.sh"]

docker-compose.yml

@@ -3,7 +3,6 @@ services:
     build:
       context: .
       dockerfile: Dockerfile
-    # image: croc/minidlna
     container_name: docker-minidlna
     network_mode: host
     restart: unless-stopped
@@ -14,6 +13,7 @@ services:
       # - SSDP_IFACE=eth0
       - FOLDERS=/media/mp3,/media/movies,/media/tv_series
     volumes:
+      - /mnt/data/config:/var/lib/minidlna
       - /mnt/data/pub/movies:/media/movies
       - /mnt/data/pub/tv_series:/media/tv_series
       - /mnt/data/pub/mp3:/media/mp3

files/start.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 if [ ! -e /etc/minidlna.configured ]
 then
@@ -11,7 +11,7 @@ then
   # remove media folders
   sed -i s@media_dir=@\#media_dir=@g /etc/minidlna.conf
   # add media folders to the end of file
-  for folder in $( echo $FOLDERS | xargs -d',' )
+  for folder in $( echo $FOLDERS | tr ',' '\0' | xargs -0 echo )
   do
     echo "media_dir=$folder" >> /etc/minidlna.conf
   done
@@ -44,4 +44,4 @@ rm -f /run/minidlna/minidlna.pid
 # start minidlna
 minidlnad -d -v
 
-#/bin/bash
+#/bin/sh