repair the webtry setup process

experimental/webtry/setup/webtry_setup.sh

 #!/bin/bash
 #
 # Script to setup a GCE instance to run the webtry server.
 # For full instructions see the README file.
+
+function banner {
+        echo ""
+        echo "******************************************"
+        echo "*"
+        echo "* $1"
+        echo "*"
+        echo "******************************************"
+        echo ""
+}
+
+banner "Installing debian packages needed for the server"
+
 sudo apt-get install schroot debootstrap monit squid3
 
 # although aufs is being replaced by overlayfs, it's not clear
 # to me if overlayfs is completely supported by schroot yet.
 sudo apt-get install aufs-tools
 
-echo "Adding the webtry user account"
+banner "Setting up the webtry user account"
 sudo adduser webtry
 
 sudo mkdir /home/webtry/cache
 sudo mkdir /home/webtry/cache/src
 sudo mkdir /home/webtry/inout
 sudo chmod 777 /home/webtry/inout
 sudo chmod 777 /home/webtry/cache
 sudo chmod 777 /home/webtry/cache/src
 
 sudo cp ../sys/webtry_schroot /etc/schroot/chroot.d/webtry
 
 CHROOT_JAIL=/srv/chroot/webtry_gyp
 # Build the chroot environment.
 if [ ! -d ${CHROOT_JAIL} ]; then
+        banner "Building the chroot jail"
         sudo mkdir -p ${CHROOT_JAIL}
 
         sudo debootstrap --variant=minbase wheezy ${CHROOT_JAIL}
         sudo cp setup_jail.sh ${CHROOT_JAIL}/bin
         sudo chmod 755 ${CHROOT_JAIL}/bin/setup_jail.sh
         sudo chroot ${CHROOT_JAIL} /bin/setup_jail.sh
         sudo sh -c "echo 'none /dev/shm tmpfs rw,nosuid,nodev,noexec 0 0' >> ${CHROOT_JAIL}/etc/fstab"
 fi
 
+# The continue_install_jail script will update and build up the skia library
+# inside the jail.
+
+banner "Installing and updating software on the chroot jail"
+sudo cp continue_install_jail.sh ${CHROOT_JAIL}/bin/continue_install_jail.sh
+sudo chmod 755 ${CHROOT_JAIL}/bin/continue_install_jail.sh
+sudo chroot ${CHROOT_JAIL} /bin/continue_install_jail.sh
+sudo chown -R webtry:webtry ${CHROOT_JAIL}/skia_build/skia
+
 # The continue_install script will fetch the latest versions of
 # skia and depot_tools.  We split up the installation process into
 # two pieces like this so that the continue_install script can
 # be run independently of this one to fetch and build the latest skia.
 
-./continue_install.sh
+banner "Building the webtry server outside the jail"
+
+sudo cp continue_install.sh /home/webtry
+sudo chown webtry:webtry /home/webtry/continue_install.sh
+sudo su - webtry -c /home/webtry/continue_install.sh
+
+banner "Setting up system initialization scripts"
 
 sudo cp ../sys/webtry_init /etc/init.d/webtry
 sudo cp ../sys/webtry_monit /etc/monit/conf.d/webtry
 sudo cp ../sys/webtry_squid /etc/squid3/squid.conf
 sudo chmod 744 /etc/init.d/webtry
 
 # Confirm that monit is happy.
 sudo monit -t
 sudo monit reload
 
+banner "Restarting webtry server"
+
 sudo /etc/init.d/webtry restart
+
+banner "All done!"