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 FROM openjdk:8-jdk
-COPY . .
+COPY . /usr/src
 RUN apt-get update -qq \
     && apt-get install -qqy ant \
+    && cd /usr/src \
     && ant -Dhalt.on.plugin.error=true -Dno.package=true -f build/build.xml dist.bin
+
 FROM openjdk:8-jre
-COPY --from=0 /target/release/openfire /usr/local/openfire
+COPY --from=0 /usr/src/target/release/openfire /usr/local/openfire
+COPY --from=0 /usr/src/build/docker/entrypoint.sh /sbin/entrypoint.sh
 WORKDIR /usr/local/openfire
-#RUN adduser --disabled-login --uid 999 --home /usr/local/openfire --gecos "" openfire \
-#    && chown -R openfire:openfire /usr/local/openfire
-#USER openfire
-VOLUME ["/usr/local/openfire/conf", "/usr/local/openfire/embedded-db", "/usr/local/openfire/plugins", "/usr/local/openfire/resources/security"]
-CMD ["/usr/local/openfire/bin/openfire.sh"]
+
+ENV OPENFIRE_USER=openfire \
+    OPENFIRE_DIR=/usr/local/openfire \
+    OPENFIRE_DATA_DIR=/var/lib/openfire \
+    OPENFIRE_LOG_DIR=/var/log/openfire
+
+RUN apt-get update -qq \
+    && apt-get install -yqq sudo \
+    && adduser --disabled-password --quiet --system --home $OPENFIRE_DATA_DIR --gecos "Openfire XMPP server" --group openfire \
+    && chmod 755 /sbin/entrypoint.sh \
+    && mv ${OPENFIRE_DIR}/conf ${OPENFIRE_DIR}/conf_org \
+    && mv ${OPENFIRE_DIR}/plugins ${OPENFIRE_DIR}/plugins_org \
+    && mv ${OPENFIRE_DIR}/resources/security ${OPENFIRE_DIR}/resources/security_org \
+    && rm -rf /var/lib/apt/lists/*
+
+LABEL maintainer="florian.kinder@fankserver.com"
+
+EXPOSE 3478/tcp 3479/tcp 5222/tcp 5223/tcp 5229/tcp 5275/tcp 5276/tcp 5262/tcp 5263/tcp 7070/tcp 7443/tcp 7777/tcp 9090/tcp 9091/tcp
+VOLUME ["${OPENFIRE_DATA_DIR}"]
+CMD ["/sbin/entrypoint.sh"]

build/docker/entrypoint.sh

+#!/bin/bash
+set -e
+
+rewire_openfire() {
+  rm -rf ${OPENFIRE_DIR}/{conf,resources/security}
+  ln -sf ${OPENFIRE_DATA_DIR}/conf ${OPENFIRE_DIR}/
+  ln -sf ${OPENFIRE_DATA_DIR}/plugins ${OPENFIRE_DIR}/
+  ln -sf ${OPENFIRE_DATA_DIR}/conf/security ${OPENFIRE_DIR}/resources/
+}
+
+initialize_data_dir() {
+  echo "Initializing ${OPENFIRE_DATA_DIR}..."
+
+  mkdir -p ${OPENFIRE_DATA_DIR}
+  chmod -R 0750 ${OPENFIRE_DATA_DIR}
+  chown -R ${OPENFIRE_USER}:${OPENFIRE_USER} ${OPENFIRE_DATA_DIR}
+
+  # initialize the data volume
+  if [[ ! -d ${OPENFIRE_DATA_DIR}/conf ]]; then
+    sudo -HEu ${OPENFIRE_USER} cp -a ${OPENFIRE_DIR}/conf_org ${OPENFIRE_DATA_DIR}/conf
+    sudo -HEu ${OPENFIRE_USER} cp -a ${OPENFIRE_DIR}/plugins_org ${OPENFIRE_DATA_DIR}/plugins
+    sudo -HEu ${OPENFIRE_USER} cp -a ${OPENFIRE_DIR}/resources/security_org ${OPENFIRE_DATA_DIR}/conf/security
+  fi
+  sudo -HEu ${OPENFIRE_USER} mkdir -p ${OPENFIRE_DATA_DIR}/{plugins,embedded-db}
+  sudo -HEu ${OPENFIRE_USER} rm -rf ${OPENFIRE_DATA_DIR}/plugins/admin
+  sudo -HEu ${OPENFIRE_USER} ln -sf ${OPENFIRE_DIR}/plugins_org/admin ${OPENFIRE_DATA_DIR}/plugins/admin
+
+  # create version file
+  CURRENT_VERSION=
+  [[ -f ${OPENFIRE_DATA_DIR}/VERSION ]] && CURRENT_VERSION=$(cat ${OPENFIRE_DATA_DIR}/VERSION)
+  if [[ ${OPENFIRE_VERSION} != ${CURRENT_VERSION} ]]; then
+    echo -n "${OPENFIRE_VERSION}" | sudo -HEu ${OPENFIRE_USER} tee ${OPENFIRE_DATA_DIR}/VERSION >/dev/null
+  fi
+}
+
+initialize_log_dir() {
+  echo "Initializing ${OPENFIRE_LOG_DIR}..."
+  mkdir -p ${OPENFIRE_LOG_DIR}
+  chmod -R 0755 ${OPENFIRE_LOG_DIR}
+  chown -R ${OPENFIRE_USER}:${OPENFIRE_USER} ${OPENFIRE_LOG_DIR}
+  rm -rf ${OPENFIRE_DIR}/logs
+  ln -sf ${OPENFIRE_LOG_DIR} ${OPENFIRE_DIR}/logs
+}
+
+# allow arguments to be passed to openfire launch
+if [[ ${1:0:1} = '-' ]]; then
+  EXTRA_ARGS="$@"
+  set --
+fi
+
+rewire_openfire
+initialize_data_dir
+initialize_log_dir
+
+# default behaviour is to launch openfire
+if [[ -z ${1} ]]; then
+  exec start-stop-daemon --start --chuid ${OPENFIRE_USER}:${OPENFIRE_USER} --exec /usr/bin/java -- \
+    -server \
+    -DopenfireHome="${OPENFIRE_DIR}" \
+    -Dopenfire.lib.dir=${OPENFIRE_DIR}/lib \
+    -classpath ${OPENFIRE_DIR}/lib/startup.jar \
+    -jar ${OPENFIRE_DIR}/lib/startup.jar ${EXTRA_ARGS}
+else
+  exec "$@"
+fi