Add rsyncd image and related Ansible for Swift

Swift replicator services require rsync to function. This patch adds a
new container which is included automatically on each of the Swift
storage nodes.

Change-Id: If10fbe610ca4df21ef0f2c7a1025035d627cb4ba
Partial-Bug: #1477993

3 files changed, 45 insertions, 0 deletions

diff --git a/docker/swift/swift-rsyncd/Dockerfile.j2 b/docker/swift/swift-rsyncd/Dockerfile.j2
new file mode 100644
index 000000000..b2f60a94e
--- /dev/null
+++ b/docker/swift/swift-rsyncd/Dockerfile.j2
@@ -0,0 +1,22 @@
+FROM {{ namespace }}/{{ base_distro }}-{{ install_type }}-swift-base:{{ tag }}
+MAINTAINER Kolla Project (https://launchpad.net/kolla)
+
+{% if base_distro in ['fedora', 'centos', 'oraclelinux'] %}
+
+RUN yum install -y rsync \
+    && yum clean all
+
+{% elif base_distro in ['ubuntu', 'debian'] %}
+
+RUN apt-get install -y --no-install-recommends \
+        rsync \
+    && apt-get clean
+
+{% endif %}
+
+COPY start.sh /
+COPY config-external.sh /opt/kolla/
+
+CMD ["/start.sh"]
+
+{{ include_footer }}
diff --git a/docker/swift/swift-rsyncd/config-external.sh b/docker/swift/swift-rsyncd/config-external.sh
new file mode 100644
index 000000000..3b3104272
--- /dev/null
+++ b/docker/swift/swift-rsyncd/config-external.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+OWNER="swift"
+
+if [[ -f "/opt/kolla/swift-rsyncd/rsyncd.conf" ]]; then
+    cp /opt/kolla/swift-rsyncd/rsyncd.conf /etc/rsyncd.conf
+    chown ${OWNER}: /etc/rsyncd.conf
+    chmod 0640 /etc/rsyncd.conf
+fi
diff --git a/docker/swift/swift-rsyncd/start.sh b/docker/swift/swift-rsyncd/start.sh
new file mode 100755
index 000000000..2267bb59f
--- /dev/null
+++ b/docker/swift/swift-rsyncd/start.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -o errexit
+
+CMD="/usr/bin/rsync"
+ARGS="--daemon --no-detach --config=/etc/rsyncd.conf"
+
+# Loading common functions.
+source /opt/kolla/kolla-common.sh
+
+# Execute config strategy
+set_configs
+
+exec $CMD $ARGS