Added tika Dockerfile

docker/tika/Dockerfile

+FROM ubuntu:latest
+MAINTAINER david@logicalspark.com
+
+ENV TIKA_VERSION 1.22
+ENV TIKA_SERVER_URL https://www.apache.org/dist/tika/tika-server-$TIKA_VERSION.jar
+
+RUN	apt-get update \
+	&& apt-get install gnupg openjdk-11-jre-headless curl gdal-bin tesseract-ocr \
+		tesseract-ocr-eng tesseract-ocr-ita tesseract-ocr-fra tesseract-ocr-spa tesseract-ocr-deu -y \
+	&& curl -sSL https://people.apache.org/keys/group/tika.asc -o /tmp/tika.asc \
+	&& gpg --import /tmp/tika.asc \
+	&& curl -sSL "$TIKA_SERVER_URL.asc" -o /tmp/tika-server-${TIKA_VERSION}.jar.asc \
+	&& NEAREST_TIKA_SERVER_URL=$(curl -sSL http://www.apache.org/dyn/closer.cgi/${TIKA_SERVER_URL#https://www.apache.org/dist/}\?asjson\=1 \
+		| awk '/"path_info": / { pi=$2; }; /"preferred":/ { pref=$2; }; END { print pref " " pi; };' \
+		| sed -r -e 's/^"//; s/",$//; s/" "//') \
+	&& echo "Nearest mirror: $NEAREST_TIKA_SERVER_URL" \
+	&& curl -sSL "$NEAREST_TIKA_SERVER_URL" -o /tika-server-${TIKA_VERSION}.jar \
+	&& apt-get clean -y && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+EXPOSE 9998
+ENTRYPOINT java -jar /tika-server-${TIKA_VERSION}.jar -h 0.0.0.0
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