Fix bug 1600 - checking for db user keystone creation

Change-Id: Ibe382eaec6b2afefe3743cc818a75f60983bfcaa
Signed-off-by: sousaedu <eduardo.sousa@canonical.com>

docker/Keystone/scripts/start.sh

@@ -19,6 +19,7 @@
 ##
 
 DB_EXISTS=""
+USER_DB_EXISTS=""
 DB_NOT_EMPTY=""
 
 max_attempts=120
@@ -75,14 +76,31 @@ function is_db_created() {
     fi
 }
 
+function is_user_db_created() {
+    db_host=$1
+    db_port=$2
+    db_user=$3
+    db_pswd=$4
+    db_user_to_check=$5
+
+    user_count=$(mysql -h"$db_host" -P"$db_port" -u"$db_user" -p"$db_pswd" --default_character_set utf8 -sse "SELECT COUNT(*) FROM mysql.user WHERE user='$db_user_to_check' AND host='%';")
+
+    if [ $user_count -gt 0 ]; then
+        echo "DB User $db_name exists"
+        return 0
+    else
+        echo "DB User$db_name does not exist"
+        return 1
+    fi
+}
+
 wait_db "$DB_HOST" "$DB_PORT" || exit 1
 
 is_db_created "$DB_HOST" "$DB_PORT" "$ROOT_DB_USER" "$ROOT_DB_PASSWORD" "keystone" && DB_EXISTS="Y"
+is_user_db_created "$DB_HOST" "$DB_PORT" "$ROOT_DB_USER" "$ROOT_DB_PASSWORD" "keystone" && USER_DB_EXISTS="Y"
 
 if [ -z $DB_EXISTS ]; then
     mysql -h"$DB_HOST" -P"$DB_PORT" -u"$ROOT_DB_USER" -p"$ROOT_DB_PASSWORD" --default_character_set utf8 -e "CREATE DATABASE keystone"
-    mysql -h"$DB_HOST" -P"$DB_PORT" -u"$ROOT_DB_USER" -p"$ROOT_DB_PASSWORD" --default_character_set utf8 -e "GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'localhost' IDENTIFIED BY '$KEYSTONE_DB_PASSWORD'"
-    mysql -h"$DB_HOST" -P"$DB_PORT" -u"$ROOT_DB_USER" -p"$ROOT_DB_PASSWORD" --default_character_set utf8 -e "GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'%' IDENTIFIED BY '$KEYSTONE_DB_PASSWORD'"
 else
     if [ $(mysql -h"$DB_HOST" -P"$DB_PORT" -u"$ROOT_DB_USER" -p"$ROOT_DB_PASSWORD" --default_character_set utf8 -sse "SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'keystone';") -gt 0 ]; then
         echo "DB keystone is empty"
@@ -90,6 +108,11 @@ else
     fi
 fi
 
+if [ -z $USER_DB_EXISTS ]; then
+    mysql -h"$DB_HOST" -P"$DB_PORT" -u"$ROOT_DB_USER" -p"$ROOT_DB_PASSWORD" --default_character_set utf8 -e "GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'localhost' IDENTIFIED BY '$KEYSTONE_DB_PASSWORD'"
+    mysql -h"$DB_HOST" -P"$DB_PORT" -u"$ROOT_DB_USER" -p"$ROOT_DB_PASSWORD" --default_character_set utf8 -e "GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'%' IDENTIFIED BY '$KEYSTONE_DB_PASSWORD'"
+fi
+
 # Setting Keystone database connection
 sed -i '/^\[database\]$/,/^\[/ s/^connection = .*/connection = mysql+pymysql:\/\/keystone:'$KEYSTONE_DB_PASSWORD'@'$DB_HOST':'$DB_PORT'\/keystone/' /etc/keystone/keystone.conf