Bash script to change Cloudflare security level via RESTful API. Could be used in a cronjob to disable the website during high load

cloudflareSecurityLevel.bash

#!/bin/bash

#
# Toggles cloudflare security_settings base on system load
# Only prints output when the setting is changed to a different one
# Needs "jq" installed
#

# e.g. essentially_off, low, medium, high, under_attack
USERNAME=$1
AUTHKEY=$2
ZONEID=$3
DESIRED_VALUE=$4
RULE=$5

# calculate vars
CURRENT_LOAD=$(uptime | awk '{print $10+0}')
BC=$(echo "$CURRENT_LOAD $RULE" | bc)

if [ "$BC" = "1" ]; then
    CURRENT_VALUE=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/${ZONEID}/settings/security_level" \
        -H "X-Auth-Email: ${USERNAME}" \
            -H "X-Auth-Key: ${AUTHKEY}" \
            -H "Content-Type: application/json" | jq -r '.result.value')

    if [ $CURRENT_VALUE != $DESIRED_VALUE ]; then
        curl -s -X PATCH "https://api.cloudflare.com/client/v4/zones/${ZONEID}/settings/security_level" \
            -H "X-Auth-Email: ${USERNAME}" \
            -H "X-Auth-Key: ${AUTHKEY}" \
            -H "Content-Type: application/json" \
           --data "{\"value\":\"$DESIRED_VALUE\"}"
        echo "Load = $CURRENT_LOAD, cloudflare = $CURRENT_VALUE, toggled to $DESIRED_VALUE"
    fi
fi

#install
sudo su
apt-get install jq -y
wget -O /usr/local/bin/cloudflareSecurityLevel
chmod +x /usr/local/bin/cloudflareSecurityLevel