CI: use vagrant scripts for import tests

Use vanilla docker images of Ubuntu and leave the setup
to the vagrant scripts. Then do the usual import tests.

Also fixes a couple of issues found with the scripts

vagrant/Install-on-Ubuntu-20.sh

@@ -1,8 +1,7 @@
-#!/bin/bash
+#!/bin/bash -e
 #
 # hacks for broken vagrant box      #DOCS:
 sudo rm -f /var/lib/dpkg/lock       #DOCS:
-sudo update-locale LANG=en_US.UTF-8 #DOCS:
 export APT_LISTCHANGES_FRONTEND=none #DOCS:
 export DEBIAN_FRONTEND=noninteractive #DOCS:
 
@@ -14,14 +13,9 @@ export DEBIAN_FRONTEND=noninteractive #DOCS:
 #
 # These instructions expect that you have a freshly installed Ubuntu 20.04.
 #
-# Make sure all packages are are up-to-date by running:
+# Make sure all packages are up-to-date by running:
 #
 
-#DOCS:    :::sh
-    sudo apt-get \ #DOCS:
-        -o DPkg::options::="--force-confdef" -o DPkg::options::="--force-confold" \ #DOCS:
-        --allow-downgrades --allow-remove-essential --allow-change-held-packages \ #DOCS:
-        -fuy install grub-pc #DOCS:
     sudo apt update -qq
 
 # Now you can install all packages needed for Nominatim:
@@ -59,8 +53,10 @@ export DEBIAN_FRONTEND=noninteractive #DOCS:
 # To be able to copy and paste instructions from this manual, export
 # user name and home directory now like this:
 #
+if [ "x$USERNAME" == "x" ]; then #DOCS:
     export USERNAME=vagrant        #DOCS:    export USERNAME=nominatim
     export USERHOME=/home/vagrant  #DOCS:    export USERHOME=/srv/nominatim
+fi                                 #DOCS:
 #
 # **Never, ever run the installation as a root user.** You have been warned.
 #
@@ -78,8 +74,11 @@ export DEBIAN_FRONTEND=noninteractive #DOCS:
 #
 # Restart the postgresql service after updating this config file.
 
-    sudo systemctl restart postgresql
-
+if [ "x$NOSYSTEMD" == "xyes" ]; then  #DOCS:
+    sudo pg_ctlcluster 12 main start
+else                                  #DOCS:
+    sudo systemctl restart postgresql #DOCS:
+fi                                    #DOCS:
 #
 # Finally, we need to add two postgres users: one for the user that does
 # the import and another for the webserver which should access the database
@@ -131,11 +130,13 @@ fi                                 #DOCS:
 #
 # The webserver should serve the php scripts from the website directory of your
 # [project directory](../admin/Import.md#creating-the-project-directory).
-# Therefore set up a project directory and populate the website directory:
+# This directory needs to exist when being configured.
+# Therefore set up a project directory and create a website directory:
 
     mkdir $USERHOME/nominatim-project
-    cd $USERHOME/nominatim-project
-    nominatim refresh --website
+    mkdir $USERHOME/nominatim-project/website
+
+# The import process will populate the directory later.
 
 #
 # Option 1: Using Apache
@@ -169,7 +170,11 @@ EOFAPACHECONF
 #
 
     sudo a2enconf nominatim
+if [ "x$NOSYSTEMD" == "xyes" ]; then  #DOCS:
+    sudo apache2ctl start             #DOCS:
+else                                  #DOCS:
     sudo systemctl restart apache2
+fi                                    #DOCS:
 
 # The Nominatim API is now available at `http://localhost/nominatim/`.
 
@@ -252,7 +257,12 @@ EOF_NGINX_CONF
 # Enable the configuration and restart Nginx
 #
 
+if [ "x$NOSYSTEMD" == "xyes" ]; then  #DOCS:
+    sudo /usr/sbin/php-fpm7.3 --nodaemonize --fpm-config /etc/php/7.3/fpm/php-fpm.conf & #DOCS:
+    sudo /usr/sbin/nginx &            #DOCS:
+else                                  #DOCS:
     sudo systemctl restart php7.4-fpm nginx
+fi                                    #DOCS:
 
 # The Nominatim API is now available at `http://localhost/`.