Start ntpd using a script and -gx first

Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>

images/01-base/Dockerfile

@@ -33,6 +33,7 @@ RUN rm /sbin/poweroff /sbin/reboot /sbin/halt && \
     echo '%sudo ALL=(ALL) ALL' >> /etc/sudoers
 COPY inputrc /etc/inputrc
 COPY growpart /usr/bin/growpart
+COPY start_ntp.sh /bin/start_ntp.sh
 RUN sed -i s/"partx --update \"\$part\" \"\$dev\""/"partx --update --nr \"\$part\" \"\$dev\""/g /usr/bin/growpart && \
     sed -i -e 's/duid/clientid/g' /etc/dhcpcd.conf && \
     sed -i 1,10d /etc/rsyslog.conf && \

images/01-base/start_ntp.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+set -ex
+echo "starting in one shot mode to fix large time differences"
+ntpd -gq
+echo "starting long running nptd"
+exec ntpd --nofork -g

os-config.tpl.yml

@@ -211,7 +211,7 @@ rancher:
       - /usr/bin/iptables:/sbin/iptables:ro
     ntp:
       image: {{.OS_REPO}}/os-base:{{.VERSION}}{{.SUFFIX}}
-      command: ntpd --nofork -g
+      command: /bin/start_ntp.sh
       labels:
         io.rancher.os.scope: system
         io.rancher.os.after: network

scripts/package-installer

@@ -21,12 +21,7 @@ fi
 # build kexec
 pushd .
 cd scripts/installer/kexec
-echo Downloading dapper
-curl -sL https://releases.rancher.com/dapper/latest/dapper-`uname -s`-`uname -m|sed 's/v7l//'` > .dapper.tmp
-chmod +x .dapper.tmp
-./.dapper.tmp -v
-mv .dapper.tmp .dapper
-./.dapper
+dapper
 popd