Update 'dockerfile'

dockerfile

@@ -2,17 +2,7 @@ FROM ubuntu:22.04
 VOLUME /usr /lib /etc /var /bin /home /opt
 CMD /bin/bash
 
-RUN for key in 871920D1991BC93C; do \
+RUN apt update \
-        gpg --recv-keys "$key" \
-        && gpg --export "$key" | apt-key add - ; \
-    done
-    
-RUN set -eux; \
-    apt update; \
-    apt install -y --no-install-recommends ca-certificates;
-
-RUN set -eux; \
-    apt update \
     && apt full-upgrade -y \
     && apt install -y \
     curl \
@@ -22,6 +12,8 @@ RUN set -eux; \
     iputils-ping \
     net-tools
 
-ADD https://git.dfosd.synology.me/docker/ubuntu-base/raw/branch/master/setup_programs.sh /setup_programs.sh
+RUN export DEBIAN_FRONTEND=noninteractive \
-RUN chmod +x /setup_programs.sh
+    && apt update \
-RUN /setup_programs.sh
+    && apt install -y tzdata \
+    && ln -fs /usr/share/zoneinfo/Europe/Moscow /etc/localtime \
+    && dpkg-reconfigure --frontend noninteractive tzdata