Merge pull request #5 from rody/use-jre

feat: use JRE 8 on alpine 3.9

Dockerfile

@@ -1,23 +1,22 @@
-FROM openjdk:8-alpine
+FROM openjdk:8-jre-alpine3.9
 
 ARG PMD_VERSION=${PMD_VERSION:-6.40.0}
 
-RUN apk add --update --no-cache wget unzip
 RUN mkdir -p /opt
 
 RUN cd /opt \
+      && apk add --no-cache --virtual .build-deps wget unzip \
       && wget -nc -O pmd.zip https://github.com/pmd/pmd/releases/download/pmd_releases/${PMD_VERSION}/pmd-bin-${PMD_VERSION}.zip \
       && unzip pmd.zip \
       && rm -f pmd.zip \
-      && mv pmd-bin-${PMD_VERSION} pmd
+      && mv pmd-bin-${PMD_VERSION} pmd \
+      && apk del .build-deps
 
-COPY pmd /usr/bin/pmd
-COPY cpd /usr/bin/cpd
-RUN chmod +x /usr/bin/pmd /usr/bin/cpd
+RUN apk add --update --no-cache dumb-init
 
 RUN mkdir /src
 VOLUME /src
 WORKDIR /src
 
-CMD ["pmd"]
-
+ENTRYPOINT [ "/usr/bin/dumb-init", "/usr/bin/java", "-classpath", "/opt/pmd/lib/*", "net.sourceforge.pmd.PMD" ]
+CMD ""

README.md

@@ -18,11 +18,11 @@ In order to run this container you'll need docker installed.
 
 ex: Java analysis with custom rulesets
 
-`docker run -v $PWD:/src rawdee/pmd pmd -language java -dir . -rulesets ./my-rulesets.xml`
+`docker run -v $PWD:/src rawdee/pmd -language java -dir . -rulesets ./my-rulesets.xml`
 
 ex: Apex analysis with builtin rulesets
 
-`docker run -v $PWD:/src rawdee/pmd pmd -language apex -dir . -rulesets rulesets/apex/rulset.xml`
+`docker run -v $PWD:/src rawdee/pmd -language apex -dir . -rulesets rulesets/apex/ruleset.xml`
 
 #### Volumes