EBS provisioning script

provision-ebs.sh

#!/usr/bin/env bash
DEFAULT_FILESYSTEM='ext4'
for DEVICE in $(lsblk -lnd -o NAME | grep -v nvme0); do
    VOLUME_ID=$(ebsnvme-id /dev/$DEVICE -v | cut -d' ' -f3)
    MOUNT_POINT=$(aws ec2 describe-volumes --volume-id $VOLUME_ID | jq -r '.Volumes | .[].Tags | .[] | select(.Key == "MountPoint") | .Value')
    echo "Device: ${DEVICE} - ${MOUNT_POINT}"
    # Wait for attachment
    aws ec2 wait volume-in-use --volume-ids $VOLUME_ID --filters Name=attachment.status,Values=attached
    if [[ $(file -s /dev/$DEVICE | cut -d':' -f2) == " data" ]]; then
        echo "Creating ext4 filesystem on /dev/$DEVICE."
        mkfs -t $DEFAULT_FILESYSTEM /dev/$DEVICE
    fi
    UUID=$(lsblk -o UUID -lnd /dev/$DEVICE)
    echo "Detected UUID for $DEVICE: $UUID"
    mkdir -p $MOUNT_POINT
    if ! grep $UUID /etc/fstab > /dev/null; then
        echo "$UUID not found in /etc/fstab - adding."
        echo -e "UUID=${UUID}\t${MOUNT_POINT}\t${DEFAULT_FILESYSTEM}\tdefaults,noatime\t1\t1" >> /etc/fstab
    fi
    if ! grep $DEVICE /proc/mounts > /dev/null; then
        echo "Mounting $MOUNT_POINT."
        mount $MOUNT_POINT
    fi
done