Switch to env_file and deploy amavis

amavis/Dockerfile

@@ -1,3 +1,18 @@
 FROM alpine
 
-RUN apk add --update amavis spamassassin clamav && rm -rf /var/cache/apk/*
+RUN echo "@testing http://nl.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories \
+ && apk add --update \
+      perl-socket6 \
+      perl-io-socket-inet6@testing \
+      amavisd-new \
+      spamassassin \
+      rsyslog \
+      wget \
+ && rm -rf /var/cache/apk/*
+
+COPY conf /etc/
+COPY rsyslog.conf /etc/rsyslog.conf
+
+COPY start.sh /start.sh
+
+CMD ["/start.sh"]