rsyslog container

First container from logging stack

Change-Id: I8c8b6743e22a38969cb8a741f3176c5aed24f549
Implements: bp logging-container

docker/logging/rsyslog/Dockerfile.j2

@@ -0,0 +1,17 @@
+FROM {{ namespace }}/{{ base_distro }}-{{ install_type }}-base:{{ tag }}
+MAINTAINER Kolla Project (https://launchpad.net/kolla)
+
+{% if base_distro in ['fedora', 'centos', 'oraclelinux'] %}
+RUN yum -y install \
+        rsyslog \
+    && yum clean all
+{% elif base_distro in ['ubuntu', 'debian'] %}
+RUN apt-get install -y --no-install-recommends \
+       rsyslog \
+    && apt-get clean
+{% endif %}
+
+COPY config-external.sh /opt/kolla/
+COPY start.sh /
+
+CMD ["/start.sh"]

docker/logging/rsyslog/config-external.sh

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+#!/bin/bash
+SOURCE="/opt/kolla/rsyslog/rsyslog.conf"
+TARGET="/etc/rsyslog.conf"
+OWNER="root"
+
+if [[ -f "$SOURCE" ]]; then
+    rm $TARGET
+    cp $SOURCE $TARGET
+    chown ${OWNER}: $TARGET
+    chmod 0644 $TARGET
+fi

docker/logging/rsyslog/start.sh

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+#!/bin/bash
+
+set -o errexit
+
+CMD="/usr/sbin/rsyslogd"
+ARGS="-n"
+
+# Loading common functions.
+source /opt/kolla/kolla-common.sh
+
+# Execute config strategy
+set_configs
+
+exec $CMD $ARGS