TT#62000 Add script to copy puppet.gpg key

This script copies puppet.gpg file to '/root' dir of Grml-sipwise
image in building process.

Create 'scripts/PUPPETLABS' so '10-gpgkey' is copied there in runtime.

Change-Id: I836fa35e3f64f40cb4ee4a298fc18676f7689b54

grml_build/10-gpgkey

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -e
+
+fcopy -v /root/puppet.gpg

grml_build/Dockerfile

@@ -5,7 +5,7 @@ FROM docker.mgm.sipwise.com/sipwise-buster:latest
 # is updated with the current date. It will force refresh of all
 # of the base images and things like `apt-get update` won't be using
 # old cached versions when the Dockerfile is built.
-ENV REFRESHED_AT 2019-07-01
+ENV REFRESHED_AT 2019-07-03
 
 RUN apt-get update && apt-get install --assume-yes \
   bc \
@@ -42,7 +42,8 @@ WORKDIR /code/grml-live
 
 RUN mkdir -p /code/grml-live/etc/grml/fai/config/files/etc/apt/sources.list.d/sipwise.list/ \
   /code/grml-live/etc/grml/fai/config/files/etc/apt/trusted.gpg.d/sipwise-keyring.gpg/ \
-  /code/grml-live/etc/grml/fai/config/files/root/puppet.gpg/
+  /code/grml-live/etc/grml/fai/config/files/root/puppet.gpg/ \
+  /code/grml-live/etc/grml/fai/config/scripts/PUPPETLABS/
 
 ### Usage instructions #############################################################################
 ## Build docker image: