Docker run (#50)

* Added entrypoint to docker image.

* Added information about running in docker.

* Fix sonar issue

* Fix sonar redirect complaint

* Clean up docker image a bit

README.md

@@ -40,6 +40,15 @@ To simply scan some code and see possible changes to make:
 pixee fix /my/project/directory/
 ```
 
+## Docker Usage
+
+Pixee can also be run in a Docker container. This is useful if you want to run Pixee on an oerating system that does not support brew, or a CI/CD pipeline or in a containerized environment. 
+
+```
+docker run --rm -it -v "${PWD}:/src" codemodder/pixee-cli fix /src
+
+```
+
 ## F.A.Q.
 
 ### What languages are supported for fixes?

docker/Dockerfile

@@ -1,21 +1,17 @@
 FROM python:3.11-rc-bullseye
 WORKDIR /pixee
 
-RUN apt-get update
+ENV CODEMODDER_JAVA_VERSION=0.75.1
 
-# Install Python 3, pip and wget
-RUN apt-get install -y wget unzip openjdk-17-jre
-
-RUN ln -s /usr/bin/python3 /usr/bin/python && \
-    java -version && \
-    python --version && \
-    python3 -m pip install semgrep==1.15.0 && \
-    python3 -m pip install codemodder
-
-RUN wget https://github.com/pixee/codemodder-java/releases/download/v0.72.2/codemodder-java-codemods-0.72.2.zip
-RUN unzip codemodder-java-codemods-0.72.2.zip
+RUN apt-get update && apt-get --no-install-recommends install -y wget unzip openjdk-17-jre && apt-get clean && rm -rf /var/lib/apt/lists/*
+RUN wget --max-redirect=1 "https://github.com/pixee/codemodder-java/releases/download/v${CODEMODDER_JAVA_VERSION}/codemodder-java-codemods-${CODEMODDER_JAVA_VERSION}.zip"
+RUN unzip codemodder-java-codemods-*.zip && rm codemodder-java-codemods-*.zip
 
 RUN python3 -m pip install pixee
 
 COPY bin ./bin
 ENV PATH="${PATH}:/pixee/bin"
+
+WORKDIR /src
+
+ENTRYPOINT ["pixee"]