diff --git a/api/section_api_pacemaker.xml b/api/section_api_pacemaker.xml
index 51967262..0e187429 100644
--- a/api/section_api_pacemaker.xml
+++ b/api/section_api_pacemaker.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="s-api-pacemaker">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="s-api-pacemaker">
 
           <title>Configure Pacemaker group</title>
 
diff --git a/api/section_api_vip.xml b/api/section_api_vip.xml
index b077b3d7..67096617 100644
--- a/api/section_api_vip.xml
+++ b/api/section_api_vip.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="s-api-vip">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="s-api-vip">
 
           <title>Configure the VIP</title>
 
diff --git a/api/section_ceilometer_agent_central.xml b/api/section_ceilometer_agent_central.xml
index feaee4e3..ca9335f0 100644
--- a/api/section_ceilometer_agent_central.xml
+++ b/api/section_ceilometer_agent_central.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="s-ceilometer-agent-central">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="s-ceilometer-agent-central">
 
           <title>Highly available Telemetry central agent</title>
 
diff --git a/api/section_cinder_api.xml b/api/section_cinder_api.xml
index 6d47c21a..78860b89 100644
--- a/api/section_cinder_api.xml
+++ b/api/section_cinder_api.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="s-cinder-api">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="s-cinder-api">
 
           <title>Highly available Block Storage API</title>
 
diff --git a/api/section_glance_api.xml b/api/section_glance_api.xml
index e3ccacc6..f0fb6ea5 100644
--- a/api/section_glance_api.xml
+++ b/api/section_glance_api.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="s-glance-api">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="s-glance-api">
 
           <title>Highly available OpenStack Image API</title>
 
diff --git a/api/section_keystone.xml b/api/section_keystone.xml
index a1b06193..0d450dc5 100644
--- a/api/section_keystone.xml
+++ b/api/section_keystone.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="s-keystone">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="s-keystone">
 
           <title>Highly available OpenStack Identity</title>
 
diff --git a/api/section_neutron_server.xml b/api/section_neutron_server.xml
index 4d718ab0..eb4e749b 100644
--- a/api/section_neutron_server.xml
+++ b/api/section_neutron_server.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="s-neutron-server">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="s-neutron-server">
 
           <title>Highly available OpenStack Networking server</title>
 
diff --git a/bk-ha-guide.xml b/bk-ha-guide.xml
index 66235e98..d79b8c0e 100644
--- a/bk-ha-guide.xml
+++ b/bk-ha-guide.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<book xml:id="bk-ha-guide"
-      xmlns="http://docbook.org/ns/docbook"
-      xmlns:xlink="http://www.w3.org/1999/xlink"
-      xmlns:xi="http://www.w3.org/2001/XInclude"
-      version="5.0">
+<book xmlns="http://docbook.org/ns/docbook"
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="bk-ha-guide">
 
     <title>OpenStack High Availability Guide</title>
     <info>
diff --git a/ch_api.xml b/ch_api.xml
index dee1a85a..6d71b2bc 100644
--- a/ch_api.xml
+++ b/ch_api.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <chapter xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ch-api">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ch-api">
 
         <title>API node cluster stack</title>
 
diff --git a/ch_controller.xml b/ch_controller.xml
index 5c892704..96e3754b 100644
--- a/ch_controller.xml
+++ b/ch_controller.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
    <chapter xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ch-controller">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ch-controller">
 
         <title>Cloud controller cluster stack</title>
 
diff --git a/ch_ha_aa_controllers.xml b/ch_ha_aa_controllers.xml
index 99e6d93c..b022b64f 100644
--- a/ch_ha_aa_controllers.xml
+++ b/ch_ha_aa_controllers.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
     <chapter xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ha-aa-controllers">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ha-aa-controllers">
 
         <title>OpenStack controller nodes</title>
 
diff --git a/ch_ha_aa_db.xml b/ch_ha_aa_db.xml
index c3881253..2943fa97 100644
--- a/ch_ha_aa_db.xml
+++ b/ch_ha_aa_db.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
     <chapter xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ha-aa-db">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ha-aa-db">
 
         <title>Database</title>
 
diff --git a/ch_ha_aa_haproxy.xml b/ch_ha_aa_haproxy.xml
index 729058f4..8570b034 100644
--- a/ch_ha_aa_haproxy.xml
+++ b/ch_ha_aa_haproxy.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
     <chapter xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ha-aa-haproxy">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ha-aa-haproxy">
 
         <title>HAproxy nodes</title>
 
diff --git a/ch_ha_aa_network.xml b/ch_ha_aa_network.xml
index 2e41bcb4..7b5517cf 100644
--- a/ch_ha_aa_network.xml
+++ b/ch_ha_aa_network.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
     <chapter xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ha-aa-network">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ha-aa-network">
 
         <title>OpenStack network nodes</title>
 
diff --git a/ch_ha_aa_rabbitmq.xml b/ch_ha_aa_rabbitmq.xml
index 2f56627e..5582a652 100644
--- a/ch_ha_aa_rabbitmq.xml
+++ b/ch_ha_aa_rabbitmq.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
     <chapter xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ha-aa-rabbitmq">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ha-aa-rabbitmq">
 
         <title>RabbitMQ</title>
 
diff --git a/ch_intro.xml b/ch_intro.xml
index 72e09b8b..f7938b08 100644
--- a/ch_intro.xml
+++ b/ch_intro.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
   <chapter xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ch-intro">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ch-intro">
 
       <title>Introduction to OpenStack High Availability</title>
 
diff --git a/ch_network.xml b/ch_network.xml
index 2a230cd6..53a6a09b 100644
--- a/ch_network.xml
+++ b/ch_network.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
    <chapter xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ch-network">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ch-network">
 
         <title>Network controller cluster stack</title>
 
diff --git a/ch_pacemaker.xml b/ch_pacemaker.xml
index 81ef5a82..7c200e46 100644
--- a/ch_pacemaker.xml
+++ b/ch_pacemaker.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
     <chapter xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ch-pacemaker">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ch-pacemaker">
 
         <title>The Pacemaker cluster stack</title>
 
diff --git a/controller/section_mysql.xml b/controller/section_mysql.xml
index 880279a2..528a4b9c 100644
--- a/controller/section_mysql.xml
+++ b/controller/section_mysql.xml
@@ -4,9 +4,10 @@
 %openstack;
 ]>
 <section xmlns="http://docbook.org/ns/docbook"
-         xmlns:xlink="http://www.w3.org/1999/xlink"
-         xmlns:xi="http://www.w3.org/2001/XInclude"
-         version="5.0" xml:id="s-mysql">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="s-mysql">
 
           <title>Highly available MySQL</title>
 
diff --git a/controller/section_rabbitmq.xml b/controller/section_rabbitmq.xml
index cd1562d7..748bd091 100644
--- a/controller/section_rabbitmq.xml
+++ b/controller/section_rabbitmq.xml
@@ -4,9 +4,10 @@
 %openstack;
 ]>
 <section xmlns="http://docbook.org/ns/docbook"
-         xmlns:xlink="http://www.w3.org/1999/xlink"
-         xmlns:xi="http://www.w3.org/2001/XInclude"
-         version="5.0" xml:id="s-rabbitmq">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="s-rabbitmq">
 
           <title>Highly available RabbitMQ</title>
 
diff --git a/ha_aa_controllers/section_memcached.xml b/ha_aa_controllers/section_memcached.xml
index 0b0cb185..da5f46b6 100644
--- a/ha_aa_controllers/section_memcached.xml
+++ b/ha_aa_controllers/section_memcached.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_memcached">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_memcached">
 
           <title>Memcached</title>
 
diff --git a/ha_aa_controllers/section_run_openstack_api_and_schedulers.xml b/ha_aa_controllers/section_run_openstack_api_and_schedulers.xml
index 0d90c697..0708288b 100644
--- a/ha_aa_controllers/section_run_openstack_api_and_schedulers.xml
+++ b/ha_aa_controllers/section_run_openstack_api_and_schedulers.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_run_openstack_api_and_schedulers">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_run_openstack_api_and_schedulers">
 
           <title>Run OpenStack API and schedulers</title>
 
diff --git a/ha_aa_db/section_ha_aa_db_galera_monitoring.xml b/ha_aa_db/section_ha_aa_db_galera_monitoring.xml
index e749a435..d3bb6790 100644
--- a/ha_aa_db/section_ha_aa_db_galera_monitoring.xml
+++ b/ha_aa_db/section_ha_aa_db_galera_monitoring.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ha-aa-db-galera-monitoring">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ha-aa-db-galera-monitoring">
 
           <title>Galera monitoring scripts</title>
 
diff --git a/ha_aa_db/section_ha_aa_db_mysql_galera.xml b/ha_aa_db/section_ha_aa_db_mysql_galera.xml
index 768d1959..245e3fef 100644
--- a/ha_aa_db/section_ha_aa_db_mysql_galera.xml
+++ b/ha_aa_db/section_ha_aa_db_mysql_galera.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ha-aa-db-mysql-galera">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ha-aa-db-mysql-galera">
 
           <title>MySQL with Galera</title>
 
diff --git a/ha_aa_db/section_other_ways_to_provide_a_highly_available_database.xml b/ha_aa_db/section_other_ways_to_provide_a_highly_available_database.xml
index 9ed177c8..f5eda485 100644
--- a/ha_aa_db/section_other_ways_to_provide_a_highly_available_database.xml
+++ b/ha_aa_db/section_other_ways_to_provide_a_highly_available_database.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_other_ways_to_provide_a_highly_available_database">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_other_ways_to_provide_a_highly_available_database">
 
           <title>Other ways to provide a highly available database</title>
 
diff --git a/ha_aa_network/section_run_neutron_dhcp_agent.xml b/ha_aa_network/section_run_neutron_dhcp_agent.xml
index b3305350..02cc5f5f 100644
--- a/ha_aa_network/section_run_neutron_dhcp_agent.xml
+++ b/ha_aa_network/section_run_neutron_dhcp_agent.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_run_neutron_dhcp_agent">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_run_neutron_dhcp_agent">
 
           <title>Run neutron DHCP agent</title>
 
diff --git a/ha_aa_network/section_run_neutron_l3_agent.xml b/ha_aa_network/section_run_neutron_l3_agent.xml
index 4780b9d7..ed7fa5b2 100644
--- a/ha_aa_network/section_run_neutron_l3_agent.xml
+++ b/ha_aa_network/section_run_neutron_l3_agent.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_run_neutron_l3_agent">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_run_neutron_l3_agent">
 
           <title>Run neutron L3 agent</title>
 
diff --git a/ha_aa_network/section_run_neutron_metadata_agent.xml b/ha_aa_network/section_run_neutron_metadata_agent.xml
index 4d3df4ab..73871db2 100644
--- a/ha_aa_network/section_run_neutron_metadata_agent.xml
+++ b/ha_aa_network/section_run_neutron_metadata_agent.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_run_neutron_metadata_agent">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_run_neutron_metadata_agent">
 
           <title>Run neutron metadata agent</title>
 
diff --git a/ha_aa_rabbitmq/section_configure_openstack_services_to_user_rabbitmq.xml b/ha_aa_rabbitmq/section_configure_openstack_services_to_user_rabbitmq.xml
index 6d2c7140..0da51fc5 100644
--- a/ha_aa_rabbitmq/section_configure_openstack_services_to_user_rabbitmq.xml
+++ b/ha_aa_rabbitmq/section_configure_openstack_services_to_user_rabbitmq.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_configure_openstack_services_to_use_rabbitmq">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_configure_openstack_services_to_use_rabbitmq">
 
           <title>Configure OpenStack services to use RabbitMQ</title>
 
diff --git a/ha_aa_rabbitmq/section_configure_rabbitmq.xml b/ha_aa_rabbitmq/section_configure_rabbitmq.xml
index 1f0740b9..7f899b04 100644
--- a/ha_aa_rabbitmq/section_configure_rabbitmq.xml
+++ b/ha_aa_rabbitmq/section_configure_rabbitmq.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_configure_rabbitmq">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_configure_rabbitmq">
 
           <title>Configure RabbitMQ</title>
 
diff --git a/ha_aa_rabbitmq/section_install_rabbitmq.xml b/ha_aa_rabbitmq/section_install_rabbitmq.xml
index 0b683ccc..f8c25564 100644
--- a/ha_aa_rabbitmq/section_install_rabbitmq.xml
+++ b/ha_aa_rabbitmq/section_install_rabbitmq.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_install_rabbitmq">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_install_rabbitmq">
 
           <title>Install RabbitMQ</title>
 
diff --git a/network/section_highly_available_neutron_dhcp_agent.xml b/network/section_highly_available_neutron_dhcp_agent.xml
index a983cfa7..099b0f9f 100644
--- a/network/section_highly_available_neutron_dhcp_agent.xml
+++ b/network/section_highly_available_neutron_dhcp_agent.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_highly_available_neutron_dhcp_agent">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_highly_available_neutron_dhcp_agent">
 
           <title>Highly available neutron DHCP agent</title>
 
diff --git a/network/section_highly_available_neutron_l3_agent.xml b/network/section_highly_available_neutron_l3_agent.xml
index dd303cff..23f2ddd0 100644
--- a/network/section_highly_available_neutron_l3_agent.xml
+++ b/network/section_highly_available_neutron_l3_agent.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_highly_available_neutron_l3_agent">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_highly_available_neutron_l3_agent">
 
           <title>Highly available neutron L3 agent</title>
 
diff --git a/network/section_highly_available_neutron_metadata_agent.xml b/network/section_highly_available_neutron_metadata_agent.xml
index 677240d2..84d5ed06 100644
--- a/network/section_highly_available_neutron_metadata_agent.xml
+++ b/network/section_highly_available_neutron_metadata_agent.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_highly_available_neutron_metadata_agent">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_highly_available_neutron_metadata_agent">
           <title>Highly available neutron metadata agent</title>
         <para>Neutron metadata agent allows Compute API metadata to be reachable by VMs on tenant
 networks. High availability for the metadata agent is achieved by adopting
diff --git a/network/section_manage_network_resources.xml b/network/section_manage_network_resources.xml
index 603bdc18..416d4886 100644
--- a/network/section_manage_network_resources.xml
+++ b/network/section_manage_network_resources.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_manage_network_resources">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_manage_network_resources">
 
           <title>Manage network resources</title>
 
diff --git a/pacemaker/section_install_packages.xml b/pacemaker/section_install_packages.xml
index f7859193..5c3301bb 100644
--- a/pacemaker/section_install_packages.xml
+++ b/pacemaker/section_install_packages.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_install_packages">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_install_packages">
           <title>Install packages</title>
         <para>On any host that is meant to be part of a Pacemaker cluster, you must
 first establish cluster communications through the Corosync messaging
diff --git a/pacemaker/section_set_basic_cluster_properties.xml b/pacemaker/section_set_basic_cluster_properties.xml
index d8cde4f5..30a2ee8c 100644
--- a/pacemaker/section_set_basic_cluster_properties.xml
+++ b/pacemaker/section_set_basic_cluster_properties.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_set_basic_cluster_properties">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_set_basic_cluster_properties">
 
           <title>Set basic cluster properties</title>
 
diff --git a/pacemaker/section_set_up_corosync.xml b/pacemaker/section_set_up_corosync.xml
index b017a416..ef2805a6 100644
--- a/pacemaker/section_set_up_corosync.xml
+++ b/pacemaker/section_set_up_corosync.xml
@@ -1,7 +1,8 @@
       <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_set_up_corosync">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_set_up_corosync">
           <title>Set up Corosync</title>
         <para>Besides installing the <literal>corosync</literal> package, you must also
 create a configuration file, stored in
diff --git a/pacemaker/section_start_pacemaker.xml b/pacemaker/section_start_pacemaker.xml
index f9ee8ee3..c094fbd8 100644
--- a/pacemaker/section_start_pacemaker.xml
+++ b/pacemaker/section_start_pacemaker.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_start_pacemaker">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_start_pacemaker">
           <title>Start Pacemaker</title>
         <para>Once the Corosync services have been started, and you have established
 that the cluster is communicating properly, it is safe to start
diff --git a/pacemaker/section_starting_corosync.xml b/pacemaker/section_starting_corosync.xml
index 1ef5f9a4..962c6a90 100644
--- a/pacemaker/section_starting_corosync.xml
+++ b/pacemaker/section_starting_corosync.xml
@@ -1,7 +1,8 @@
      <section xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="_starting_corosync">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="_starting_corosync">
 
           <title>Starting Corosync</title>
 
diff --git a/part_active_active.xml b/part_active_active.xml
index 18ba5e32..0161ea30 100644
--- a/part_active_active.xml
+++ b/part_active_active.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
   <part xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ha-using-active-active">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ha-using-active-active">
 
       <title>HA using active/active</title>
 
diff --git a/part_active_passive.xml b/part_active_passive.xml
index c24c9d0a..dd40dcec 100644
--- a/part_active_passive.xml
+++ b/part_active_passive.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
   <part xmlns="http://docbook.org/ns/docbook"
-    xmlns:xlink="http://www.w3.org/1999/xlink"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    version="5.0" xml:id="ha-using-active-passive">
+  xmlns:xi="http://www.w3.org/2001/XInclude"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  version="5.0"
+  xml:id="ha-using-active-passive">
 
       <title>HA using active/passive</title>