Acme tool checks for valid autodiscover and autoconfig A records and skips non-existing names

Todo: Add AAAA check, add check for additional_san

data/Dockerfiles/acme/Dockerfile

@@ -0,0 +1,14 @@
+FROM alpine:3.6
+
+LABEL maintainer "Andre Peters <andre.peters@servercow.de>"
+
+RUN apk add --update --no-cache \
+	bash \
+	acme-client \
+	curl \
+	openssl \
+	bind-tools
+
+COPY docker-entrypoint.sh /srv/docker-entrypoint.sh
+
+ENTRYPOINT ["/srv/docker-entrypoint.sh"]