Simple distributed dockerized CRUD built over EJB, JSF, JDBC, POSTGRES, SWING.
#Architecture Overview
Module PeopleCrudCore
This ejb module wraps business logic into Stateless Bean PersonService and PersonDao.
PersonService interface is embedded in PeopleCrudLibrary module of which this module depends.
PeopleCrudCore was deployed on a glassfish docker image that only has the port 3700 exposed.
Module PeopleCrudLibrary
This module is a library containing:
-Person entity;
-PersonService interface;
-The ServiceLocator class provides a method for retrieve remote objects from glassfish server.
ServiceLocator contains host and port properties that can be setted.
The host default value is pcCore that represents the NETWORK ADDRESS of the PeopleCrudCore docker container
This will be better explained further.
If you want to deploy PeopleCrudCore on your own real machine, you must change the host to localhost
All the others modules depends on this module.
Module PeopleCrud
This module is a jsf web client. It uses the ServiceLocator to retrieve the PersonService object from PeopleCrudCore.
PeopleCrud was deployed on a glassfish docker image that only has the port 8080 exposed.
Module PeopleCrudClient
This module is a Java SE Swing Client. It uses the ServiceLocator to retrieve the PersonService object from PeopleCrudCore.
It has the PersonController class that contains the buildServiceLocator(String host, String port) method.
You will see this
private PersonService buildPersonService(){
return buildServiceLocator("0.0.0.0", "370").lookup("java:global/PeopleCrudCore/PersonServiceImpl!com.vmvini.peoplecrudlibrary.PersonService", PersonService.class);
}
The code above shows the host 0.0.0.0 and the port 370.
The PeopleCrudCore will be running in a glassfish docker container and its public port will be setted to 370 at the docker run command.
As the PeopleCrudClient will be deployed on your real machine, the above host parameter its setted to 0.0.0.0 because your real machine sees the docker container as 0.0.0.0. only if docker is running on linux
#Steps to deploy
1- clone this repository
git clone https://github.com/vmvini/peoplecrud_dac.git
2- Inside the project's root folder, do:
mvn clean install
3 - Inside the postgres folder, do:
sudo docker build -t postgres-peoplecrud .
sudo docker run -d --name peopleCrudDB postgres-peoplecrud
4- Inside the PeopleCrudCore folder, do:
sudo docker build -t glassfish-peoplecrud .
sudo docker run -d -p 370:3700 --link peopleCrudDB:postgres --name peopleCrudCore glassfish-peoplecrud
The --link flag is telling to glassfish-peoplecrud container that postgres is a alias to the peoplecrudDB container (name of postgres-peoplecrud container image)
Thus, postgres will be interpreted as the network address of the postgres docker container.
5- Inside the PeopleCrud folder, do:
sudo docker build -t glassfish-peoplecrudweb .
sudo docker run -d -p 80:8080 --link peopleCrudCore:pcCore glassfish-peoplecrudweb
Do you remember the pcCore value quoted at the beginning of this readme? The line of code above tells docker to interpret pcCore as the network address of the peopleCrudCore container.
6- WEB Client test:
open http://0.0.0.0/PeopleCrud/ on the browser.
7- Desktop Client test: Through your IDE, execute the MainFrame class.