Merge pull request #22 from PeterDaveHello/ImproveDockerfile

Make Docker image more compact(smaller)

Author: cddmp

Dockerfile

@@ -1,10 +1,10 @@
 FROM python:3.8-alpine
 
-RUN apk upgrade
+RUN apk upgrade --no-cache
 RUN apk add --no-cache rust cargo openssl-dev libffi-dev py3-pip python3 samba-client samba-common-tools yaml-dev
-RUN apk add --virtual build-dependencies build-base git \
-  && git clone https://github.com/cddmp/enum4linux-ng.git \
-  && pip install -r enum4linux-ng/requirements.txt \
+RUN apk add --no-cache --virtual build-dependencies build-base git \
+  && git clone --depth 1 https://github.com/cddmp/enum4linux-ng.git \
+  && pip install --no-cache-dir -r enum4linux-ng/requirements.txt \
   && apk del build-dependencies
 WORKDIR enum4linux-ng
 ENTRYPOINT ["python", "enum4linux-ng.py"]