bugfix for valheim

valheim/Containerfile

@@ -18,13 +18,16 @@ ARG FILESUID=5000
 ### General Setup
 ###
 
-# install packages we want
+# install basic packages 
+RUN apt update -y && apt install -y software-properties-common libsdl2-2.0-0 zip
+
+# install steamcmd
 RUN apt-add-repository contrib && \
     apt-add-repository non-free && \
     apt update -y && \
 #    echo steam steam/question select "I AGREE" | debconf-set-selections && \
 #    echo steam steam/license note '' | debconf-set-selections && \
-    apt install -y steamcmd libsdl2-2.0-0
+    apt install -y steamcmd
 
 # create valheim server user with file owner UID
 RUN addgroup --gid $FILESUID vhadmin && \