A GlassFish cluster with Apache loadbalancer in Docker

You'll get a cluster with 3 instances, Admin Console, Apache loadbalancer.

The GlassFish Admin Console will be available at:

• https://localhost:14848 (not the default 4848 ! )
• admin user: admin
• admin password: admin

A sample application clusterjsp will be deployed on the cluster. It will be available at the following address:

• https://localhost:44443/clusterjsp

Start the cluster

In the root directory, start all containers using Docker compose:

docker compose up -d --build

Administer the cluster

You can configure the GlassFish cluster in the Admin Console.

You can open terminal for each server:

• Admin Console: docker exec -it glassfish-apache-cluster-gfadmin-1 bash
• Instance 1: docker exec -it glassfish-apache-cluster-gfnode1-1 bash
• Instance 2: docker exec -it glassfish-apache-cluster-gfnode2-1 bash
• Instance 3: docker exec -it glassfish-apache-cluster-gfnode3-1 bash
• Apache Server: docker exec -it glassfish-apache-cluster-apache-1 bash

Configuration

Apache server

• Persistent configuration in apache/httpd.conf
• Configuration in the container: /usr/local/apache2/conf/httpd.conf
• See: https://hub.docker.com/_/httpd

GlassFish

• Persistent configuration in glassfish-admin/setup.commands - list of asadmin commands that are executed when docker containers are created
• Configuration in the container:
  • edit in Admin Console
  • or open the terminal for the container (docker exec -it glassfish-apache-cluster-gfadmin-1 bash) and use bin/asdadmin as usual