FSx-ONTAP-samples-scripts/Management-Utilities/ec2-user-data-iscsi-create-and-mount/build_linux_userData at eb9de43e80e6bb09e945f1c03a1e533649fb5d59 · NetApp/FSx-ONTAP-samples-scripts · GitHub

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#!/bin/bash
#
# Since, for some reason, the maximum size of a EC2 User Data script is
# 16KB we have to compress the real script, with some logic to uncompress
# it on the EC2 instance when it is deployed, and then pass that as the
# user data content.
#
# This script is used to create the linux_userData.sh script from the
# linux_userData_real.sh file.
################################################################################

cat <<'EOF' > linux_userData.sh
#!/bin/bash
#
# Set the ARN of the secret that should contain just the password for the ONTAP admin user set below.
SECRET_ARN=""
#
# Set the FSx admin IP.
FSXN_ADMIN_IP=""
#
# Set the name of the volume to be created on the FSx for ONTAP file system. Note, volume names cannot have dashes in them.
VOLUME_NAME=""
#
# Set the volume size in GB. It should just be a number, without the 'GB' suffix.
VOLUME_SIZE=
#
# Set the SVM name. The default is 'fsx'.
SVM_NAME="fsx"
#
# Set the ONTAP admin user. The default is fsxadmin.
ONTAP_USER="fsxadmin"
#
################################################################################
# ****  You should not need to edit anything below this line ****
################################################################################
#
# When called from the CloudFormation template, the parameters are passsed as
# arguments.
SECRET_ARN="${SECRET_ARN:=$1}"
FSXN_ADMIN_IP="${FSXN_ADMIN_IP:=$2}"
VOLUME_NAME="${VOLUME_NAME:=$3}"
VOLUME_SIZE="${VOLUME_SIZE:=$4}"
SVM_NAME="${5:-$SVM_NAME}"
ONTAP_USER="${6:-$ONTAP_USER}"
#
# Since AWS only allows up to 16KB for the user data script, the rest of this script
# will be the compressed version of the linux_userData_real.sh file, which will be
# uncompressed and executed on the EC2 instance when it is deployed.
cat <<EOF2 > /tmp/linux_userData.sh
#!/bin/bash
export SECRET_ARN="$SECRET_ARN"
export FSXN_ADMIN_IP="$FSXN_ADMIN_IP"
export VOLUME_NAME="$VOLUME_NAME"
export VOLUME_SIZE="$VOLUME_SIZE"
export SVM_NAME="$SVM_NAME"
export ONTAP_USER="$ONTAP_USER"
EOF2

cat <<EOF3 | base64 -d | gunzip >> /tmp/linux_userData.sh
EOF

cat linux_userData_real.sh | gzip -c | base64 >> linux_userData.sh

cat <<EOF4 >> linux_userData.sh
EOF3

chmod +x /tmp/linux_userData.sh
/tmp/linux_userData.sh
EOF4