Optimized Dockerfile for layer cache and moved all the installations for cache not to rerun the same layer for every code change for Docker container.

Dockerfile

@@ -1,21 +1,12 @@
-FROM kalilinux/kali-rolling
-
+FROM kalilinux/kali-rolling:latest
 RUN apt-get update && \
-apt-get install -y git python3-pip figlet sudo;
-
-#Install packages dependencies
-RUN true && \
-apt-get install -y boxes php curl xdotool wget;
+    apt-get install -y git python3-pip figlet sudo && \
+    apt-get install -y boxes php curl xdotool wget
 
 WORKDIR /root/hackingtool
+COPY requirements.txt ./
+RUN pip3 install --no-cache-dir boxes flask lolcat requests -r requirements.txt
 COPY . .
-
-RUN true && \
-pip3 install boxes flask lolcat requests -r requirements.txt;
-
-RUN true && \
- echo "/root/hackingtool/" > /home/hackingtoolpath.txt;
-
+RUN true && echo "/root/hackingtool/" > /home/hackingtoolpath.txt;
 EXPOSE 1-65535
-
-ENTRYPOINT ["python3", "/root/hackingtool/hackingtool.py"]
+ENTRYPOINT ["python3", "/root/hackingtool/hackingtool.py"]