<Resource name="JDBC/DSAdmin"
         global="jdbc/DSAdmin"
         auth="Container"
         factory="com.zaxxer.hikari.HikariJNDIFactory"
         type="javax.sql.DataSource"
         driverClassName="com.mysql.jdbc.Driver"
         jdbcUrl="jdbc:mysql://localhost:3306/dbname"
         username="admin"
         password="admin"
         minimumIdle="5" maximumPoolSize="50" connectionTimeout="300000" maxLifetime="1800000" />
and
<Resource name="jdbc/DS"
         global="jdbc/DS"
         auth="Container"
         factory="com.zaxxer.hikari.HikariJNDIFactory"
         type="javax.sql.DataSource"
         driverClassName="com.mysql.jdbc.Driver"
         jdbcUrl="jdbc:mysql://localhost:3306/database"
         username="root"
         password="root"
         minimumIdle="5" maximumPoolSize="50" connectionTimeout="300000" maxLifetime="1800000" />

<ResourceLink name="jdbc/DS"
     global="jdbc/DS"
     auth="Container"
type="javax.sql.DataSource" />

<ResourceLink name="jdbc/DSAdmin"
     global="jdbc/DSAdmin"
     auth="Container"
type="javax.sql.DataSource" />