Updated Webmin 2.021

Dockerfile

@@ -1,36 +1,25 @@
-FROM ubuntu:focal-20230308 AS add-apt-repositories
-
+FROM debian:bullseye-20230320 AS add-apt-repositories
 RUN apt-get update \
- && DEBIAN_FRONTEND=noninteractive apt-get install -y gnupg \
- && apt-key adv --fetch-keys http://www.webmin.com/jcameron-key.asc \
+ && DEBIAN_FRONTEND=noninteractive apt-get install -y gnupg ca-certificates apt-utils \
+ && apt-get update \
+ && apt-key adv --fetch-keys https://webmin.com/jcameron-key.asc \
  && echo "deb http://download.webmin.com/download/repository sarge contrib" >> /etc/apt/sources.list
-
-FROM ubuntu:focal-20230308
-
+FROM debian:bullseye-20230320
 LABEL maintainer="[email protected]"
-
 ENV BIND_USER=bind \
     BIND_VERSION=9.16.37 \
-    WEBMIN_VERSION=2.020 \
+    WEBMIN_VERSION=2.021 \
     DATA_DIR=/data
-
 COPY --from=add-apt-repositories /etc/apt/trusted.gpg /etc/apt/trusted.gpg
-
 COPY --from=add-apt-repositories /etc/apt/sources.list /etc/apt/sources.list
-
 RUN rm -rf /etc/apt/apt.conf.d/docker-gzip-indexes \
  && apt-get update \
  && DEBIAN_FRONTEND=noninteractive apt-get install -y \
       bind9=1:${BIND_VERSION}* bind9-host=1:${BIND_VERSION}* dnsutils \
       webmin=${WEBMIN_VERSION}* \
  && rm -rf /var/lib/apt/lists/*
-
 COPY entrypoint.sh /sbin/entrypoint.sh
-
 RUN chmod 755 /sbin/entrypoint.sh
-
 EXPOSE 53/udp 53/tcp 10000/tcp
-
 ENTRYPOINT ["/sbin/entrypoint.sh"]
-
 CMD ["/usr/sbin/named"]