Updated configuration and docs for MYSQL_PASSWORD

Updated MYSQL_PASSWORD to DATABASE_PASSWORD in sample
configuration and existing docs

Change-Id: Iafb295a0b7707e08a81e6528620db8543d40f7ae
diff --git a/doc/source/guides/multinode-lab.rst b/doc/source/guides/multinode-lab.rst
index 1530a84..5660bc5 100644
--- a/doc/source/guides/multinode-lab.rst
+++ b/doc/source/guides/multinode-lab.rst
@@ -128,7 +128,7 @@
     MULTI_HOST=1
     LOGFILE=/opt/stack/logs/stack.sh.log
     ADMIN_PASSWORD=labstack
-    MYSQL_PASSWORD=supersecret
+    DATABASE_PASSWORD=supersecret
     RABBIT_PASSWORD=supersecrete
     SERVICE_PASSWORD=supersecrete
     SERVICE_TOKEN=xyzpdqlazydog
@@ -169,7 +169,7 @@
     MULTI_HOST=1
     LOGFILE=/opt/stack/logs/stack.sh.log
     ADMIN_PASSWORD=labstack
-    MYSQL_PASSWORD=supersecret
+    DATABASE_PASSWORD=supersecret
     RABBIT_PASSWORD=supersecrete
     SERVICE_PASSWORD=supersecrete
     SERVICE_TOKEN=xyzpdqlazydog
diff --git a/doc/source/guides/neutron.rst b/doc/source/guides/neutron.rst
index 4248445..9d4f54a 100644
--- a/doc/source/guides/neutron.rst
+++ b/doc/source/guides/neutron.rst
@@ -52,7 +52,7 @@
         RABBIT_HOST=172.18.161.6
         GLANCE_HOSTPORT=172.18.161.6:9292
         ADMIN_PASSWORD=secrete
-        MYSQL_PASSWORD=secrete
+        DATABASE_PASSWORD=secrete
         RABBIT_PASSWORD=secrete
         SERVICE_PASSWORD=secrete
         SERVICE_TOKEN=secrete
diff --git a/doc/source/guides/single-machine.rst b/doc/source/guides/single-machine.rst
index 236ece9..a01c368 100644
--- a/doc/source/guides/single-machine.rst
+++ b/doc/source/guides/single-machine.rst
@@ -105,7 +105,7 @@
     FIXED_NETWORK_SIZE=256
     FLAT_INTERFACE=eth0
     ADMIN_PASSWORD=supersecret
-    MYSQL_PASSWORD=iheartdatabases
+    DATABASE_PASSWORD=iheartdatabases
     RABBIT_PASSWORD=flopsymopsy
     SERVICE_PASSWORD=iheartksl
     SERVICE_TOKEN=xyzpdqlazydog
diff --git a/doc/source/guides/single-vm.rst b/doc/source/guides/single-vm.rst
index 515cd50..53c3fa9 100644
--- a/doc/source/guides/single-vm.rst
+++ b/doc/source/guides/single-vm.rst
@@ -64,7 +64,7 @@
             cd devstack
             echo '[[local|localrc]]' > local.conf
             echo ADMIN_PASSWORD=password >> local.conf
-            echo MYSQL_PASSWORD=password >> local.conf
+            echo DATABASE_PASSWORD=password >> local.conf
             echo RABBIT_PASSWORD=password >> local.conf
             echo SERVICE_PASSWORD=password >> local.conf
             echo SERVICE_TOKEN=tokentoken >> local.conf
diff --git a/samples/local.conf b/samples/local.conf
index ce70073..cb293b6 100644
--- a/samples/local.conf
+++ b/samples/local.conf
@@ -28,7 +28,7 @@
 # and they will be added to ``local.conf``.
 SERVICE_TOKEN=azertytoken
 ADMIN_PASSWORD=nomoresecrete
-MYSQL_PASSWORD=stackdb
+DATABASE_PASSWORD=stackdb
 RABBIT_PASSWORD=stackqueue
 SERVICE_PASSWORD=$ADMIN_PASSWORD
 
diff --git a/tools/xen/README.md b/tools/xen/README.md
index 6212cc5..a1adf59 100644
--- a/tools/xen/README.md
+++ b/tools/xen/README.md
@@ -77,7 +77,7 @@
     # NOTE: these need to be specified, otherwise devstack will try
     # to prompt for these passwords, blocking the install process.
 
-    MYSQL_PASSWORD=my_super_secret
+    DATABASE_PASSWORD=my_super_secret
     SERVICE_TOKEN=my_super_secret
     ADMIN_PASSWORD=my_super_secret
     SERVICE_PASSWORD=my_super_secret