Installing GlassFish on CentOS 7

GlassFish is an open-source application server that is used to deploy and run JavaServer Pages (JSP) and Java Servlets. It provides features like load balancing, clustering, administration, and monitoring tools to support enterprise applications.

To install GlassFish on CentOS 7, follow the steps below:

Step 1: Update System Packages

Before proceeding with the installation, update your CentOS 7 system's packages to their latest versions by running the following command:

sudo yum update -y

Step 2: Install Java Development Kit (JDK)

GlassFish requires Java Development Kit (JDK) to be installed on the system. You can install OpenJDK, which is an open-source implementation of the Java Platform, by running the following command:

sudo yum install java-1.8.0-openjdk-devel -y

Verify the installation by checking the Java version:

java -version

Step 3: Download GlassFish

Visit the official GlassFish website (https://javaee.github.io/glassfish/download) and download the desired version of GlassFish. Alternatively, you can use the following command to download GlassFish 5.1.0:

wget http://download.eclipse.org/ee4j/glassfish/glassfish-5.1.0.zip

Step 4: Unzip GlassFish

Unzip the downloaded GlassFish zip file using the following command:

unzip glassfish-5.1.0.zip

This will extract the contents of the zip file into a directory named "glassfish5".

Step 5: Configure Environment Variables

Add the following environment variables to the "bashrc" file using a text editor:

export GLASSFISH_HOME=/path/to/glassfish5 export PATH=$PATH:$GLASSFISH_HOME/bin

Replace "/path/to/glassfish5" with the actual path where you extracted GlassFish.

Save the file and exit the text editor.

Step 6: Start GlassFish

Start GlassFish by running the following command:

asadmin start-domain

This will start the default domain "domain1" of GlassFish.

Step 7: Access GlassFish Admin Console

Open a web browser and access the GlassFish Admin Console using the following URL:

http://localhost:4848

This will open the GlassFish Admin Console, where you can manage and configure your GlassFish server.

Congratulations! You have successfully installed and configured GlassFish on CentOS 7. You can now deploy your Java applications and take advantage of GlassFish's features for enterprise application development.