diff --git a/apache/tasks/apache.yml b/apache/tasks/apache.yml
index 9d4b4070..d8beb3cb 100644
--- a/apache/tasks/apache.yml
+++ b/apache/tasks/apache.yml
@@ -34,9 +34,11 @@
 - name: Ensure that the apache service is enabled and started
   service: name=apache2 state=started enabled=yes
   when: apache_service_enabled
+  ignore_errors: True
   tags: apache
 
 - name: Ensure that the apache service is disabled and stopped if we do not want it running
   service: name=apache2 state=stopped enabled=no
   when: not apache_service_enabled
+  ignore_errors: True
   tags: apache
diff --git a/nginx/defaults/main.yml b/nginx/defaults/main.yml
index b6000f04..0cd1fe22 100644
--- a/nginx/defaults/main.yml
+++ b/nginx/defaults/main.yml
@@ -3,7 +3,7 @@ nginx_use_ldap_pam_auth: False
 nginx_pam_svc_name: nginx
 nginx_ldap_uri: "ldap://ldap.sub.research-infrastructures.eu"
 nginx_ldap_base_dn: "dc=research-infrastructures,dc=eu"
-nginx_enabled: "Yes"
+nginx_enabled: True
 
 nginx_enable_compression: True
 nginx_gzip_vary: "on"
diff --git a/nginx/tasks/nginx.yml b/nginx/tasks/nginx.yml
index f5df3143..ef09fa6a 100644
--- a/nginx/tasks/nginx.yml
+++ b/nginx/tasks/nginx.yml
@@ -24,6 +24,14 @@
   notify: Reload nginx
   tags: [ 'nginx', 'nginx_conf' ]
 
-- name: Ensure that the webserver is running
-  service: name=nginx state=started enabled={{ nginx_enabled }}
+- name: Ensure that the webserver is running and enabled at boot time
+  service: name=nginx state=started enabled=yes
+  when: nginx_enabled
+  ignore_errors: True
+  tags: nginx
+
+- name: Ensure that the webserver is stopped and disabled
+  service: name=nginx state=stopped enabled=no
+  when: not nginx_enabled
+  ignore_errors: True
   tags: nginx
diff --git a/postgresql/tasks/manage_pg_db.yml b/postgresql/tasks/manage_pg_db.yml
index 40812a6d..673fd143 100644
--- a/postgresql/tasks/manage_pg_db.yml
+++ b/postgresql/tasks/manage_pg_db.yml
@@ -16,5 +16,5 @@
   with_items: psql_db_data
   when:
     - psql_db_data is defined
-    - item.roles is defined
+    - ( item.createdb is not defined or item.createdb )
   tags: [ 'postgresql', 'postgres', 'pg_db' ]