script should fail on 404...

Dockerfile

@@ -1,6 +1,7 @@
 FROM phusion/baseimage:latest
 MAINTAINER Mark Stillwell <[email protected]>
 
+# init script to get ssh key from metadata service
 RUN mkdir -p /etc/my_init.d && \
     > /etc/my_init.d/05-setkey echo '#!/bin/bash\n\
 ATTEMPTS=30\n\
@@ -11,7 +12,7 @@ chmod 700 /root/.ssh\n\
 TMPFILE=$(mktemp)\n\
 while [ ! -f /root/.ssh/authorized_keys ] && [ ${ATTEMPTS} -gt 0 ]; do\n\
   ATTEMPTS=$((${ATTEMPTS}-1))\n\
-  curl -s http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key\\\n\
+  curl -sf http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key\\\n\
     > ${TMPFILE} 2>/dev/null\n\
   if [ $? -eq 0 ]; then\n\
     cat ${TMPFILE} >> /root/.ssh/authorized_keys\n\