Switched to parameter-less build and environment-controlled run script

Dockerfile

@@ -1,23 +1,17 @@
-from debian:stretch
+from debian
 
-ARG SERVER_NAME=urbackup-server
-ARG CLIENT_NAME=urbackup-client
-ARG CLIENT_KEY=secret_key
-
-RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y mktemp wget
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y wget
 
 RUN TF=`mktemp` &&\
 	wget "https://hndl.urbackup.org/Client/latest/update/UrBackupUpdateLinux.sh" -O $TF &&\ 
-	sh $TF &&\ 
-	rm $TF &&\ 
-	urbackupclientctl wait-for-backend &&\
-	urbackupclientctl set-settings -k internet_mode_enabled -v true -k internet_server -v ${SERVER_NAME} -k internet_server_port -v 55415 -k computername -v "${CLIENT_NAME}" -k internet_authkey -v ${CLIENT_KEY} &&\
-	urbackupclientctl add-backupdir --path /backup
-
-RUN ( [ ! -e /etc/default/urbackupclient ] || sed -i 's/INTERNET_ONLY=false/INTERNET_ONLY=true/' /etc/default/urbackupclient ) &&\
-	( [ ! -e /etc/default/urbackupclient ] || sed -i 's/LOGLEVEL=warn/LOGLEVEL=info/' /etc/default/urbackupclient ) &&\
-	( [ ! -e /etc/default/urbackupclient ] || sed -i 's/RESTORE=disabled/RESTORE=server-confirms/' /etc/default/urbackupclient )
+	sh $TF silent &&\ 
+	rm $TF
 
 EXPOSE 35621/TCP 35622/UDP 35623/TCP
 
-CMD ["urbackupclientbackend", "--config", "/etc/default/urbackupclient"]
+HEALTHCHECK CMD urbackupclientbackend status
+
+WORKDIR /app
+COPY run.sh /app
+
+CMD ["sh", "run.sh"]

run.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env sh
+
+urbackupclientbackend --loglevel info --restore server-confirms --internet-only &
+urbackupclientctl wait-for-backend
+
+urbackupclientctl set-settings -k internet_mode_enabled -v true 
+urbackupclientctl set-settings -k internet_server -v $SERVER_NAME 
+urbackupclientctl set-settings -k internet_server_port -v 55415 
+urbackupclientctl set-settings -k computername -v $CLIENT_NAME 
+urbackupclientctl set-settings -k internet_authkey -v $CLIENT_KEY 
+
+urbackupclientctl add-backupdir --path /backup
+
+sleep infinity