Rewrote the MySQL and Apache HTTP daemon setup scripts in bash.

Much easier for SysAdmin's to grok.  Commented them decently too.

examples/wordpress/wordpress-http.sh

@@ -1,42 +1,38 @@
-#!/usr/bin/python
-
-import os
-import subprocess
-
-# 2012-07-03 JC Set SELinux to permissive mode
-subprocess.call(["/usr/sbin/setenforce", "Permissive"])
-conf = open('/etc/selinux/config', 'w')
-conf.write('SELINUX=permissive\n')
-conf.write('SELINUXTYPE=targeted\n')
-conf.close()
-
-# get the pre rpm's wp conf
-conf = open('/etc/wordpress/wp-config.php', 'r')
-lines = conf.readlines()
-conf.close()
-
-# get the audrey vars
-wp_keys = {'database_name_here': 'AUDREY_VAR_http_wp_name',
-           'username_here': 'AUDREY_VAR_http_wp_user',
-           'password_here': 'AUDREY_VAR_http_wp_pw',
-           'localhost': 'AUDREY_VAR_http_mysql_ip'}
-
-# map the wp key values in to the config
-def sub_wp_values(line):
-  for key, val in wp_keys.items():
-    line = line.replace(key, os.environ[val])
-  return line
-
-lines = map(sub_wp_values, lines)
-
-# write the conf file back out
-conf = open('/etc/wordpress/wp-config.php', 'w')
-conf.write("".join(lines))
-conf.close()
-
-# be sure apache is running
-subprocess.call(["/sbin/service", "httpd", "start"])
-
-# Run the Wordpress installer
-hostname = subprocess.check_output(["/usr/bin/facter", "ec2_public_hostname"]).strip()
-subprocess.call(["curl", "-d", "weblog_title=AudreyFTW&user_name=admin&admin_password=admin&admin_password2=admin&admin_email=admin@example.com&blog_public=0", "http://%s/wordpress/wp-admin/install.php?step=2" % hostname])
+#!/bin/bash
+
+# Dump the working environment environment to a log file (useful for debugging)
+env > /var/log/audrey_environment.log
+
+# Add the MySQL node's settings to the Wordpress configuration file
+sed -i -e "s/database_name_here/${AUDREY_VAR_http_wp_name}/" /etc/wordpress/wp-config.php
+sed -i -e "s/username_here/${AUDREY_VAR_http_wp_user}/" /etc/wordpress/wp-config.php
+sed -i -e "s/password_here/${AUDREY_VAR_http_wp_pw}/" /etc/wordpress/wp-config.php
+sed -i -e "s/localhost/${AUDREY_VAR_http_mysql_ip}/" /etc/wordpress/wp-config.php
+
+# Let Apache use remote databases (an SELinux permission)
+/usr/sbin/setsebool -P httpd_can_network_connect_db 1
+
+# Start the Apache http daemon
+/sbin/service httpd start
+
+# Figure out which virtualisation platform we're running on
+if [ -f /etc/sysconfig/cloud-info ]
+then
+  source /etc/sysconfig/cloud-info
+fi
+
+# Retrieve an IP address people can connect to
+if [ "$CLOUD_TYPE" = "ec2" ]
+then
+  # We're running in EC2, so get the public address
+  HOSTADDRESS=`/usr/bin/facter ec2_public_hostname`
+else
+  # We're not running in EC2, so just grab any ip address
+  HOSTADDRESS=`/usr/bin/facter ipaddress`
+fi
+
+# Run the Wordpress installer, passing all the values it needs
+curl -d "weblog_title=AudreyFTW&user_name=admin&admin_password=admin&admin_password2=admin&admin_email=admin@example.com&blog_public=0" "http://${HOSTADDRESS}/wordpress/wp-admin/install.php?step=2" > /var/log/audrey_curl.log
+
+# Print useful info to the Audrey log
+echo Wordpress should now be available at http://${HOSTADDRESS}/wordpress

examples/wordpress/wordpress-mysql.sh

@@ -1,20 +1,14 @@
-#!/usr/bin/python
+#!/bin/bash
 
-import os
-import subprocess
-import shutil
+# Start the MySQL daemon
+/sbin/service mysqld start
 
-subprocess.call(["/sbin/service", "mysqld", "start"])
-subprocess.call(["/usr/bin/mysql", "-u", "root", "-e", 
-                 'create database %s;' % os.environ['AUDREY_VAR_mysql_wp_name']])
-subprocess.call(["/usr/bin/mysql", "-u", "root", "-e", 
-                 "grant all on %s.* to %s@%s;" % (
-                 os.environ['AUDREY_VAR_mysql_wp_name'],
-                 os.environ['AUDREY_VAR_mysql_wp_user'],
-                 os.environ['AUDREY_VAR_mysql_apache_ip'] ) ] )
-subprocess.call(["/usr/bin/mysql", "-u", "root", "-e", 
-                 "set password for %s@%s = password('%s');" % (
-                 os.environ['AUDREY_VAR_mysql_wp_user'],
-                 os.environ['AUDREY_VAR_mysql_apache_ip'],
-                 os.environ['AUDREY_VAR_mysql_wp_pw'] ) ] )
-shutil.copyfile('dbup.rb', '/usr/lib/ruby/site_ruby/1.8/facter/dbup.rb')
+# Create an empty database for Wordpress to use
+/usr/bin/mysql -u root -e "create database ${AUDREY_VAR_mysql_wp_name}"
+
+# Set up MySQL access controls, so the Apache server can get to the database
+/usr/bin/mysql -u root -e "grant all on ${AUDREY_VAR_mysql_wp_name}.* to ${AUDREY_VAR_mysql_wp_user}@${AUDREY_VAR_mysql_apache_ip};"
+/usr/bin/mysql -u root -e "set password for ${AUDREY_VAR_mysql_wp_user}@${AUDREY_VAR_mysql_apache_ip} = password('${AUDREY_VAR_mysql_wp_pw}');"
+
+# Copy the dbup.rb file to the required location
+cp -f dbup.rb /usr/lib/ruby/site_ruby/1.8/facter/dbup.rb