diff --git a/Dockerfile b/Dockerfile
index 194f67b..5df0843 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,12 +4,21 @@ FROM ubuntu:${UBUNTU_VER}
 
 ARG TARGETPLATFORM
 
+ENV TZ Asia/Hong_Kong
+ENV DEBIAN_FRONTEND noninteractive
+
+# Enable autocompletion
+RUN rm /etc/apt/apt.conf.d/docker-*
+RUN echo "if [ -f /etc/bash_completion ] && ! shopt -oq posix; then \
+        . /etc/bash_completion; \
+    fi" >> /root/.bashrc
+
 RUN apt update
 
-RUN apt install -y curl wget nano lsb-core nano
+RUN apt install -y curl wget nano lsb-core nano sudo bash-completion
 
 RUN apt install -y net-tools iputils-ping tcpdump traceroute iproute2 iptables iperf3 dnsutils speedtest-cli
 
 COPY scripts/entrypoint.sh /entrypoint.sh
 
-ENTRYPOINT [ "/entrypoint.sh" ]
+CMD [ "/entrypoint.sh" ]