Allow usage of MariaDB database image in addition to MySQL

pdns/Dockerfile

@@ -3,9 +3,9 @@ MAINTAINER Fabio Rauber <fabiorauber@gmail.com>
 
 ENV PDNSCONF_LAUNCH="gmysql" \
     PDNSCONF_GMYSQL_HOST="mysql" \
-    PDNSCONF_GMYSQL_USER='$MYSQL_ENV_MYSQL_USER' \
+    PDNSCONF_GMYSQL_USER='' \
-    PDNSCONF_GMYSQL_DBNAME='$MYSQL_ENV_MYSQL_DATABASE' \
+    PDNSCONF_GMYSQL_DBNAME='' \
-    PDNSCONF_GMYSQL_PASSWORD='$MYSQL_ENV_MYSQL_PASSWORD' \
+    PDNSCONF_GMYSQL_PASSWORD='' \
     PDNSCONF_INCLUDE_DIR="/etc/powerdns/pdns.d" \
     PDNSCONF_GMYSQL_DNSSEC="yes" \
     PDNSCONF_EXPERIMENTAL_API_KEY=""

pdns/start.sh

@@ -5,6 +5,17 @@ mkdir -p /etc/powerdns/pdns.d
 PDNSVARS=`echo ${!PDNSCONF_*}`
 touch /etc/powerdns/pdns.conf
 
+if [ ! -z $MYSQL_ENV_MARIADB_DATABASE ]; then
+   PDNSCONF_GMYSQL_USER=$MYSQL_ENV_MARIADB_USER 
+   PDNSCONF_GMYSQL_DBNAME=$MYSQL_ENV_MARIADB_DATABASE 
+   PDNSCONF_GMYSQL_PASSWORD=$MYSQL_ENV_MARIADB_PASSWORD
+else 
+   PDNSCONF_GMYSQL_USER=$MYSQL_ENV_MYSQL_USER
+   PDNSCONF_GMYSQL_DBNAME=$MYSQL_ENV_MYSQL_DATABASE
+   PDNSCONF_GMYSQL_PASSWORD=$MYSQL_ENV_MYSQL_PASSWORD
+fi
+
+
 for var in $PDNSVARS; do
   varname=`echo ${var#"PDNSCONF_"} | awk '{print tolower($0)}' | sed 's/_/-/g'`
   value=`echo ${!var} | sed 's/^$\(.*\)/\1/'`
@@ -28,7 +39,7 @@ fi
 mysqlcheck() {
   # Wait for MySQL to be available...
   COUNTER=20
-  until mysql -h mysql -u $MYSQL_ENV_MYSQL_USER -p$MYSQL_ENV_MYSQL_PASSWORD -e "show databases" 2>/dev/null; do
+  until mysql -h mysql -u $PDNSCONF_GMYSQL_USER -p$PDNSCONF_GMYSQL_PASSWORD -e "show databases" 2>/dev/null; do
     echo "WARNING: MySQL still not up. Trying again..."
     sleep 10
     let COUNTER-=1
@@ -38,10 +49,10 @@ mysqlcheck() {
     fi
   done
 
-  count=`mysql -h mysql -u $MYSQL_ENV_MYSQL_USER -p$MYSQL_ENV_MYSQL_PASSWORD -e "select count(*) from information_schema.tables where table_type='BASE TABLE' and table_schema='$MYSQL_ENV_MYSQL_DATABASE';" | tail -1`
+  count=`mysql -h mysql -u $PDNSCONF_GMYSQL_USER -p$PDNSCONF_GMYSQL_PASSWORD -e "select count(*) from information_schema.tables where table_type='BASE TABLE' and table_schema='$PDNSCONF_GMYSQL_DBNAME';" | tail -1`
   if [ "$count" == "0" ]; then
     echo "Database is empty. Importing PowerDNS schema..."
-    mysql -h mysql -u $MYSQL_ENV_MYSQL_USER -p$MYSQL_ENV_MYSQL_PASSWORD $MYSQL_ENV_MYSQL_DATABASE < /usr/share/doc/pdns-backend-mysql/schema.mysql.sql && echo "Import done."
+    mysql -h mysql -u $PDNSCONF_GMYSQL_USER -p$PDNSCONF_GMYSQL_PASSWORD $PDNSCONF_GMYSQL_DBNAME < /usr/share/doc/pdns-backend-mysql/schema.mysql.sql && echo "Import done."
   fi
 }