update worker dockerfile to work with jep

Docker/metadig-worker/Dockerfile

@@ -24,7 +24,11 @@ COPY target/metadig-engine-$ENGINE_TAG.jar metadig-engine-$ENGINE_TAG.jar
 COPY Docker/metadig-worker/solr solr/
 
 RUN apt-get update
-RUN apt-get install -y g++ r-base r-base-dev r-base-core r-doc-html libc6-dev libssl-dev libxml2 libxml2-dev libcurl4-openssl-dev
+RUN apt-get install -y g++ git r-base r-base-dev r-base-core r-doc-html libc6-dev libssl-dev libxml2 libxml2-dev libcurl4-openssl-dev python3 python3-pip python3-dev openjdk-17-jdk
+
+# Set Java environment variables
+ENV JAVA_HOME=/usr/lib/jvm/java-17-openjdk-arm64
+ENV PATH="$PATH:$JAVA_HOME/bin"
 
 # Install required R packages
 RUN echo 'options(repos = c(CRAN = "http://cran.rstudio.com"))' >> /usr/lib/R/etc/Rprofile.site
@@ -34,6 +38,9 @@ RUN Rscript -e "remotes::install_github('NCEAS/metadig-r', ref = 'v.0.2.0')"
 # DataONE indexer prints copious error msgs if these files don't exist
 RUN mkdir -p /etc/dataone/index && touch /etc/dataone/index/d1client.properties && touch /etc/dataone/node.properties && touch /etc/dataone/index/cn-index-processor.properties
 
+COPY Docker/metadig-worker/requirements.txt /opt/local/metadig/
+RUN pip install -r /opt/local/metadig/requirements.txt
+
 # Run the Worker process
 # Note: docker --buile-arg only allows one argument (one token only, multiple tokens inside quotes doesn't work, so have
 #   to specify java options directly on command line.

Docker/metadig-worker/requirements.txt

@@ -0,0 +1,2 @@
+numpy
+metadig @ git+https://github.com/NCEAS/metadig-py.git@develop