chore(*): bump confd to v0.9.0

I've also managed to clean up some of the flags like `--interval` which
is only used when `--watch` is not present.

Author: Matthew Fisher

Dockerfile

@@ -10,7 +10,7 @@ RUN curl -sSL -o /usr/local/bin/etcdctl https://s3-us-west-2.amazonaws.com/opdem
     && chmod +x /usr/local/bin/etcdctl
 
 # install confd
-RUN curl -sSL -o /usr/local/bin/confd https://github.com/kelseyhightower/confd/releases/download/v0.8.0/confd-0.8.0-linux-amd64 \
+RUN curl -sSL -o /usr/local/bin/confd https://github.com/kelseyhightower/confd/releases/download/v0.9.0/confd-0.9.0-linux-amd64 \
     && chmod +x /usr/local/bin/confd
 
 # define execution environment

bin/boot

@@ -65,7 +65,7 @@ done
 echo "controller: done running etcd data migrations."
 
 # wait for confd to run once and install initial templates
-until confd -onetime -node $ETCD --confdir /app --interval 5 --quiet 2>/dev/null; do
+until confd -onetime -node $ETCD --confdir /app --log-level error; do
 	echo "controller: waiting for confd to write initial templates..."
 	sleep $(($ETCD_TTL/2))  # sleep for half the TTL
 done
@@ -91,7 +91,7 @@ function on_exit() {
 trap on_exit TERM
 
 # spawn confd in the background to update services based on etcd changes
-confd -node $ETCD --confdir /app --interval 5 --quiet --watch &
+confd -node $ETCD --confdir /app --log-level error --watch &
 CONFD_PID=$!
 
 echo deis-controller running...