upgrade to wildfly 18, added validation query for database connection

Dockerfile

@@ -1,6 +1,15 @@
-FROM tonda100/wildfly-empty
+FROM jboss/wildfly:18.0.0.Final
 MAINTAINER Antonin Stoklasek
 
+ENV WILDFLY_HOME /opt/jboss/wildfly
+ENV DEPLOY_DIR ${WILDFLY_HOME}/standalone/deployments/
+
+# setup timezone
+ENV TZ=Europe/Prague
+USER root
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+USER jboss
+
 ENV DATASOURCE_NAME ApplicationDS
 ENV DATASOURCE_JNDI java:/ApplicationDS
 
@@ -22,9 +31,8 @@ COPY startWithPostgres.sh $WILDFLY_HOME/bin
 USER root
 RUN chown jboss:jboss $WILDFLY_HOME/bin/startWithPostgres.sh
 RUN chmod 755 $WILDFLY_HOME/bin/startWithPostgres.sh
-RUN yum -y install wget
 USER jboss
 
-RUN wget -P /tmp https://jdbc.postgresql.org/download/postgresql-9.4.1212.jar
+COPY postgresql-42.2.8.jar /tmp
 
-ENTRYPOINT $WILDFLY_HOME/bin/startWithPostgres.sh
+ENTRYPOINT $WILDFLY_HOME/bin/startWithPostgres.sh

startWithPostgres.sh

@@ -21,11 +21,22 @@ $JBOSS_CLI -c << EOF
 batch
 
 # Add PostgreSQL driver
-module add --name=org.postgres --resources=/tmp/postgresql-9.4.1212.jar --dependencies=javax.api,javax.transaction.api
+module add --name=org.postgres --resources=/tmp/postgresql-42.2.8.jar --dependencies=javax.api,javax.transaction.api
 /subsystem=datasources/jdbc-driver=postgres:add(driver-name="postgres",driver-module-name="org.postgres",driver-class-name=org.postgresql.Driver)
 
 # Add the datasource
-data-source add --jndi-name=$DATASOURCE_JNDI --name=$DATASOURCE_NAME --connection-url=jdbc:postgresql://$DB_HOST:$DB_PORT/$DB_NAME --driver-name=postgres --user-name=$DB_USER --password=$DB_PASS
+data-source add \
+  --jndi-name=$DATASOURCE_JNDI \
+  --name=$DATASOURCE_NAME \
+  --connection-url=jdbc:postgresql://$DB_HOST:$DB_PORT/$DB_NAME \
+  --driver-name=postgres \
+  --user-name=$DB_USER \
+  --password=$DB_PASS \
+  --check-valid-connection-sql="SELECT 1" \
+  --background-validation=true \
+  --background-validation-millis=60000 \
+  --flush-strategy=IdleConnections \
+  --min-pool-size=10 --max-pool-size=100  --pool-prefill=false
 
 # Execute the batch
 run-batch