Initial version of an Openfire container

Dockerfile

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+FROM alpine
+
+LABEL maintainer Knut Ahlers <knut@ahlers.me>
+
+ENV OPENFIRE_VERSION=4_2_1
+
+RUN set -ex \
+ && apk --no-cache add curl openjdk8 ca-certificates bash \
+ && mkdir /opt \
+ && curl -sSfL "https://www.igniterealtime.org/downloadServlet?filename=openfire/openfire_${OPENFIRE_VERSION}.tar.gz" | \
+      tar -xz -C /opt \
+ && curl -sSfLo /usr/local/bin/dumb-init https://github.com/Yelp/dumb-init/releases/download/v1.2.1/dumb-init_1.2.1_amd64 \
+ && chmod +x /usr/local/bin/dumb-init
+
+ADD start.sh /usr/local/bin/start.sh
+
+EXPOSE 9090 9091 5222 5223 5269
+VOLUME ["/data"]
+
+ENTRYPOINT ["/usr/local/bin/start.sh"]
+

start.sh

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+#!/usr/local/bin/dumb-init /bin/bash
+set -euo pipefail
+
+# init configuration
+[ -e "/data/security/keystore" ] || {
+  mkdir -p /data/security
+  mv /opt/openfire/resources/security/keystore /data/security/keystore
+}
+
+[ -d "/data/embedded-db" ] || { mkdir -p /data/embedded-db; }
+[ -d "/data/conf" ] || { mv /opt/openfire/conf /data/conf; }
+
+ln -sfn /data/security/keystore /opt/openfire/resources/security/keystore
+ln -sfn /data/embedded-db /opt/openfire/embedded-db
+rm -rf /opt/openfire/conf && ln -sfn /data/conf /opt/openfire/conf
+
+# start openfire
+/opt/openfire/bin/openfire start
+
+# let openfire start
+echo "Waiting for Openfire to start..."
+count=0
+while [ ! -e /opt/openfire/logs/all.log ]; do
+    if [ $count -eq 60 ]; then
+        echo "Error starting Openfire. Exiting"
+        exit 1
+    fi
+    count=$(( $count + 1 ))
+    sleep 1
+done
+
+# tail the log
+tail -f /opt/openfire/logs/all.log