This post will show you how to install EFS using EFS-Helper on RHEL using the AWS user data field. In case you don’t know, you can pass user data to an instance, that can be used to perform automated configuration tasks or run scripts after the instance starts.
You will need to modify this script and replace fs-MY_EFS_ID with your EFS storage id. The script also assumes your security groups are correctly configured allowing inbound NFS traffic. Lastly – Stunnel may be updated when you run this script. The script may not work if you download a version that is no longer available. Visit Stunnel downloads to confirm the latest version and then update the script accordingly.
You must also modify the hostname to be more suitable for your environment.
Add this script in the user data field on the ‘configure instance details’ page when you launch a new instance. The script has been developed for RHEL 7.5.
I highly recommend you use ShellCheck if you decide to make changes to the script below.
#!/bin/bash sudo hostnamectl set-hostname --static testwebserver.localdomain cd /home/ec2-user/ || exit sudo yum -y update sudo yum -y install git sudo git clone https://github.com/aws/efs-utils sudo yum -y install rpm-build cd /home/ec2-user/efs-utils/ || exit sudo make rpm sudo yum -y install build/amazon-efs-utils*rpm sudo yum -y install gcc openssl-devel tcp_wrappers-devel sudo curl -o stunnel-5.44.tar.gz https://www.stunnel.org/downloads/stunnel-5.44.tar.gz sudo tar xvfz stunnel-5.44.tar.gz cd stunnel-5.44 || exit ./configure make sudo make install if [[ -f /bin/stunnel ]]; then sudo mv /bin/stunnel /root fi sudo ln -s /usr/local/bin/stunnel /bin/stunnel cd / || exit sudo mkdir efs sudo mount -t efs -o tls fs-MY_EFS_ID:/ efs sudo echo $'Gofs-MY_EFS_ID /efs efs defaults,_netdev 0 0\E:x\n' | sudo vi /etc/fstab
Hopefully, this post showed you how to install EFS using EFS-Helper on RHEL using the AWS user data field. What other script do you run using the AWS user data field? Post your comment below at Anto Online.
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