Added Docker info to README, fixed image build

Dockerfile

@@ -1,5 +1,14 @@
 FROM jboss/wildfly
+
+MAINTAINER Ondrej Skopek "https://github.com/oskopek"
+
 ADD docker/org /opt/wildfly/modules/org/
 ADD deployments/ROOT.war /opt/wildfly/standalone/deployments/
-ADD docker/add-datasource.sh /opt/wildfly/bin/
-RUN /opt/wildfly/bin/add-datasource.sh
+
+ADD docker/add-security-domain.sh /opt/wildfly/bin/
+ADD docker/add-mysql-datasource.sh /opt/wildfly/bin/
+
+RUN /opt/wildfly/bin/add-mysql-datasource.sh
+RUN /opt/wildfly/bin/add-security-domain.sh
+
+EXPOSE 8080

README.adoc

@@ -27,6 +27,15 @@ link:./docs/howto-setup-environment-windows.adoc[Windows], link:./docs/howto-set
 * To *clean*, run: +mvn clean+
 * Run a simple link:./docs/core/core-usage.adoc[carcv-core demo]
 
+=== Docker
+CarCV is also available as a https://registry.hub.docker.com/u/oskopek/carcv-webapp/[Docker image]:
+
+```
+docker pull oskopek/carcv-webapp
+docker run -d --name=mariadb fedora/mariadb
+docker run -it --rm --link mariadb:mariadb -p 8080:8080 oskopek/carcv-webapp
+```
+
 === Getting help
 
 * Post questions or comments on our Google Groups link:https://groups.google.com/d/forum/carcv[mailing list]

docker/add-security-domain.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/augtool -LAsf
+
+#<security-domain name="carcv" cache-type="default">
+#    <authentication>
+#        <login-module code="UsersRoles" flag="required">
+#            <module-option name="usersProperties" value="users.properties" />
+#            <module-option name="rolesProperties" value="roles.properties" />
+#        </login-module>
+#    </authentication>
+#</security-domain>
+
+set /augeas/load/Xml/lens Xml.lns
+set /augeas/load/Xml/incl[2] /opt/wildfly/standalone/configuration/standalone.xml
+load
+defvar subsystem "/files/opt/wildfly/standalone/configuration/standalone.xml/server/profile/subsystem[#attribute/xmlns='urn:jboss:domain:security:1.2']"
+set $subsystem/security-domains/security-domain[last()+1]/#attribute/name "carcv"
+defvar sd $subsystem/security-domains/security-domain[last()]
+set $sd/authentication/login-module/#attribute/code "UsersRoles"
+set $sd/authentication/login-module/#attribute/flag "required"
+set $sd/authentication/login-module/module-option[last()+1]/#attribute/name "usersProperties"
+set $sd/authentication/login-module/module-option[last()]/#attribute/value "users.properties"
+set $sd/authentication/login-module/module-option[last()+1]/#attribute/name "rolesProperties"
+set $sd/authentication/login-module/module-option[last()]/#attribute/value "roles.properties"
+save
+
+print /augeas//error