reduce the docker size

Dockerfile

@@ -2,8 +2,6 @@ FROM ubuntu:22.04
 EXPOSE 80
 EXPOSE 443
 
-RUN apt-get update && apt-get install -y apt-utils curl sudo systemd xxd lsof gawk  iproute2
-
 ENV TERM xterm
 ENV TZ Etc/UTC
 ENV DEBIAN_FRONTEND noninteractive
@@ -12,18 +10,14 @@ USER root
 WORKDIR /opt/hiddify-manager/
 COPY . .
 
-RUN mkdir -p /hiddify-data/ssl/ && \
-    rm -rf /opt/hiddify-manager/ssl && \
-    ln -sf /hiddify-data/ssl /opt/hiddify-manager/ssl 
-
-# RUN mkdir -p ~/.ssh && echo "StrictHostKeyChecking no " > ~/.ssh/config
-ENV HIDDIFY_PANLE_SOURCE_DIR=/opt/hiddify-manager/hiddify-panel/src/
-ENV DOCKER_MODE=true
-ENV USE_VENV=true
-RUN bash install.sh install-docker --no-gui
-RUN cp /opt/hiddify-manager/other/docker/* /usr/bin/ 
 
+RUN apt-get update && apt-get install -y apt-utils curl sudo systemd xxd lsof gawk  iproute2 &&\
+    mkdir -p /hiddify-data/ssl/ && \
+    rm -rf /opt/hiddify-manager/ssl && \
+    ln -sf /hiddify-data/ssl /opt/hiddify-manager/ssl &&\
+    bash install.sh install-docker --no-gui &&\
+    rm -rf /var/cache/apt/archives /var/lib/apt/lists/*
 
+COPY other/docker/ /usr/bin/
 
-
 ENTRYPOINT ["./docker-init.sh"]