fix: replace log4j with reload4j (#41)

* replace log4j with reload4j

* typo

Dockerfile

@@ -30,6 +30,13 @@ RUN set -euo pipefail && \
     rm zeppelin-${ZEPPELIN_VERSION}-bin-netinst.tgz; \
     :
 
+# Download reload4j jar
+ARG RELOAD4J_VERSION="1.2.25"
+RUN set -euo pipefail && \
+    wget "https://repo1.maven.org/maven2/ch/qos/reload4j/reload4j/${RELOAD4J_VERSION}/reload4j-${RELOAD4J_VERSION}.jar" -O /zeppelin/lib/reload4j-${RELOAD4J_VERSION}.jar; \
+    rm /zeppelin/lib/log4j-1.2.17.jar; \
+    :
+
 # Install GitHub Release Assets FUSE mount CLI (requires fuse install)
 ARG GHAFS_VERSION="v0.1.3"
 RUN set -euo pipefail && \

README.md

@@ -49,7 +49,7 @@ docker build . -t zeppelin \
     --build-arg SCALA_VERSION="${SCALA_VERSION}" \
     --build-arg JAVA_VERSION="${JAVA_VERSION}"
 
-docker run --rm -it --name zeppelin -p 8080:8080 zeppelin
+docker run -d --rm -it --name zeppelin -p 8080:8080 zeppelin
 ```
 
 Wait a while and then access <http://localhost:8080/> in your web browser.