From ae18e9328e581db098978466a146f4f01901c10b Mon Sep 17 00:00:00 2001
From: Richard Lister <rlister+gh@gmail.com>
Date: Tue, 17 Feb 2015 15:20:50 -0500
Subject: [PATCH] add nginx-confd

---
 nginx-confd/Dockerfile | 25 +++++++++++++++++++++++++
 nginx-confd/app.sh     | 20 ++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 nginx-confd/Dockerfile
 create mode 100755 nginx-confd/app.sh

diff --git a/nginx-confd/Dockerfile b/nginx-confd/Dockerfile
new file mode 100644
index 0000000..bc25d88
--- /dev/null
+++ b/nginx-confd/Dockerfile
@@ -0,0 +1,25 @@
+FROM debian:jessie
+
+MAINTAINER Ric Lister <rlister@gmail.com>
+
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive \
+    apt-get install -yq \
+    curl \
+    nginx && \
+    rm /etc/nginx/sites-enabled/default
+
+WORKDIR /app
+
+## install confd
+ENV CONFD_RELEASE 0.7.1
+RUN curl -Ls https://github.com/kelseyhightower/confd/releases/download/v${CONFD_RELEASE}/confd-${CONFD_RELEASE}-linux-amd64 -o confd && \
+    chmod 0755 confd
+
+## confd setup and runner
+ADD app.sh /app/
+RUN chmod 0755 app.sh
+
+EXPOSE 80 443
+
+CMD [ "/app/app.sh" ]
diff --git a/nginx-confd/app.sh b/nginx-confd/app.sh
new file mode 100755
index 0000000..cdbd992
--- /dev/null
+++ b/nginx-confd/app.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+## make sure this script bails on any failures
+set -eo pipefail
+
+## how to get to etcd from inside container
+export ETCD=${ETCD:-http://172.17.42.1:4001}
+
+## wait until we can make initial nginx config
+until ./confd -verbose -onetime -node $ETCD -confdir /app ; do
+  echo "confd waiting to create initial nginx config"
+  sleep 5
+done
+
+## run confd to poll etcd for changes
+echo "confd polling etcd ..."
+./confd -verbose -interval 10 -node $ETCD -confdir /app &
+
+## run nginx in foreground
+nginx -g 'daemon off;'