Prerequisites for connecting Amazon Neptune databases using IAM authentication - Amazon Neptune
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Prerequisites for connecting Amazon Neptune databases using IAM authentication

The following are instructions for installing Apache Maven and Java 8 on an Amazon EC2 instance. These are required for the Amazon Neptune Signature Version 4 authentication samples.

To Install Apache Maven and Java 8 on your EC2 instance

  1. Connect to your Amazon EC2 instance with an SSH client.

  2. Install Apache Maven on your EC2 instance. If using Amazon Linux 2023 (preferred), use:

    sudo dnf update -y
sudo dnf install maven -y

    If using Amazon Linux 2, download the latest binary from https://maven.apache.org/download.cgi: 

    sudo yum remove maven -y
wget https://dlcdn.apache.org/maven/maven-3/ <version>/binaries/apache-maven-<version>-bin.tar.gz
sudo tar -xzf apache-maven-<version>-bin.tar.gz -C /opt/
sudo ln -sf /opt/apache-maven-<version> /opt/maven
echo 'export MAVEN_HOME=/opt/maven' >> ~/.bashrc
echo 'export PATH=$MAVEN_HOME/bin:$PATH' >> ~/.bashrc
source ~/.bashrc

  3. The Gremlin libraries require Java 8. Enter the following to install Java 8 on your EC2 instance.

    sudo yum install java-1.8.0-devel

  4. Enter the following to set Java 8 as the default runtime on your EC2 instance.

    sudo /usr/sbin/alternatives --config java

    When prompted, enter the number for Java 8.

  5. Enter the following to set Java 8 as the default compiler on your EC2 instance.

    sudo /usr/sbin/alternatives --config javac

    When prompted, enter the number for Java 8.