Create Dockerfile.armv7

Dockerfile.armv7

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+# Creates a base ubuntu image with serf and dnsmasq
+#
+# it aims to create a dynamic cluster of docker containers
+# each able to refer other by fully qulified domainnames
+#
+# this isn't trivial as docker has readonly /etc/hosts
+#
+# The docker images was directly taken from sequenceiq and converetd to ubuntu image
+# because I wanted to create the cluster on ubuntu.
+
+FROM ubuntu
+MAINTAINER Alvin Henrick
+
+RUN apt-get update
+RUN apt-get install -y dnsmasq unzip curl
+
+# dnsmasq configuration
+ADD dnsmasq.conf /etc/dnsmasq.conf
+ADD resolv.dnsmasq.conf /etc/resolv.dnsmasq.conf
+
+# install serfdom.io
+RUN curl -Lso /tmp/serf.zip https://dl.bintray.com/mitchellh/serf/0.5.0_linux_amd64.zip
+RUN curl -Lso /tmp/serf.zip https://releases.hashicorp.com/serf/0.8.2/serf_0.8.2_linux_arm.zip
+RUN unzip /tmp/serf.zip -d /bin
+
+ENV SERF_CONFIG_DIR /etc/serf
+
+# configure serf
+ADD serf-config.json $SERF_CONFIG_DIR/serf-config.json
+
+ADD event-router.sh $SERF_CONFIG_DIR/event-router.sh
+RUN chmod +x  $SERF_CONFIG_DIR/event-router.sh
+
+ADD handlers $SERF_CONFIG_DIR/handlers
+
+ADD start-serf-agent.sh  $SERF_CONFIG_DIR/start-serf-agent.sh
+RUN chmod +x  $SERF_CONFIG_DIR/start-serf-agent.sh
+
+EXPOSE 7373 7946
+
+CMD /etc/serf/start-serf-agent.sh