I have created the maridb folder inside Wildfly/module.../mariadb/ and added the required module.xml file and appropriate jar file.
08:36:58,152 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([
("subsystem" => "datasources"),
("data-source" => "dgpa")
]) - failure description: {
"WFLYCTL0412: Required services that are not installed:" => ["jboss.jdbc-driver.mariadb-java-client-2_3_0_jar"],
"WFLYCTL0180: Services with missing/unavailable dependencies" => [
"jboss.driver-demander.java:jboss/datasources/Archive is missing [jboss.jdbc-driver.mariadb-java-client-2_3_0_jar]",
"org.wildfly.data-source.dbpa is missing [jboss.jdbc-driver.mariadb-java-client-2_3_0_jar]"
]
}
08:36:58,192 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([
("subsystem" => "datasources"),
("data-source" => "dbagpa")
]) - failure description: {
"WFLYCTL0412: Required services that are not installed:" => [
"jboss.jdbc-driver.mariadb-java-client-2_3_0_jar",
"jboss.jdbc-driver.mariadb-java-client-2_3_0_jar"
],
"WFLYCTL0180: Services with missing/unavailable dependencies" => [
"jboss.driver-demander.java:jboss/datasources/Archive is missing [jboss.jdbc-driver.mariadb-java-client-2_3_0_jar]",
"org.wildfly.data-source.dbpa is missing [jboss.jdbc-driver.mariadb-java-client-2_3_0_jar]",
"org.wildfly.data-source.dbpa is missing [jboss.jdbc-driver.mariadb-java-client-2_3_0_jar]"
I am posting answer to my question, I messed up with my standalone.xml and I followed the below-mentioned link and it worked.