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added an ec2-cost bin script

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Dustin Kirkland 2009-02-04 10:50:55 +01:00
commit ab71521ec7
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bin/ec2-cost Executable file
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#!/bin/sh
#
# ec2-cost: approximate EC2 cost (USD) of the current instance
#
# Copyright (C) 2008 Canonical Ltd.
#
# Authors: Dustin Kirkland <kirkland@canonical.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Instance Cost Basis
# US Europe
# Small (1cpu, 32bit) $0.10/h $0.11/h
# Medium (2cpu, 32bit) $0.20/h $0.22/h
# Large (4cpu, 64bit) $0.40/h $0.44/h
# XLarge (8cpu, 64bit) $0.80/h $0.88/h
# Count CPUs
cpu_count=`grep -c "^processor.*:" /proc/cpuinfo`
[ -z "$cpu_count" ] && cpu_count=1
# Apply the going rate
CPU_RATE=`echo "$cpu_count" | awk '{printf "%f", 0.10*$1}'`
# BUG: Some logic needed here to add 10% cost for Europe instances?
# Data Transfer Cost Basis
# Incoming $0.10/GB
# Outgoing $0.17/GB
# (This gets more complex if you use >1TB/mo)
RX_RATE="0.10"
TX_RATE="0.17"
# Perhaps should auto detect this?
IF=`route | grep "^default" | awk '{print $8}'`
# Calculate bandwidth cost
tx_gb=`/sbin/ifconfig "$IF" | grep "TX bytes:" | sed "s/^.*TX bytes://" | awk '{ printf "%f", $1 / 1024 / 1024 / 1024 }'`
rx_gb=`/sbin/ifconfig "$IF" | grep "RX bytes:" | sed "s/^.*RX bytes://" | awk '{ printf "%f", $1 / 1024 / 1024 / 1024 }'`
network_cost=`echo "$tx_gb" "$TX_RATE" "$rx_gb" "$RX_RATE" | awk '{printf "%f %f", $1*$2, $3*$4}' | awk '{printf "%f", $1 + $2}'`
# Calculate uptime cost
# BUG: This will only calculate uptime since boot!
# Some additional input will be required to account for reboots!!!
hours=`awk '{printf "%f", 1 + $1 / 60 / 60 }' /proc/uptime | sed 's/\..*$//' `
uptime_cost=`echo "$hours" | awk "{printf \"%f\", "$CPU_RATE" * $hours}"`
total_cost=`echo "$network_cost" "$uptime_cost" | awk '{printf "~\$%.2f", $1 + $2}'`
#echo $tx_gb
#echo $rx_gb
#echo $network_cost
#echo $hours
#echo $uptime_cost
echo $total_cost