Add rcs_cost, a rackspace cloud server instance cost estimator

etc/byobu/statusrc

@@ -42,6 +42,7 @@ mem_used=1
 menu=1
 network=0
 processes=0
+rcs_cost=0
 reboot_required=1
 release=1
 services=1

usr/bin/byobu-config

@@ -302,6 +302,7 @@ def readstatus():
     status["menu"]=1
     status["network"]=0
     status["processes"]=0
+    status["rcs_cost"]=0
     status["reboot_required"]=1
     status["release"]=1
     status["services"]=1

usr/lib/byobu/rcs_cost

@@ -0,0 +1,99 @@
+#!/bin/sh
+#
+#    rcs_cost: approximate Rackspace Cloud Server cost (USD) of the current
+#    instance
+#
+#    Copyright (C) 2009-2010 Jon Bernard
+#
+#    Author: Jon Bernard <jbernard@debian.org>
+#
+#    Derived from byobu's ec2_cost written by Dustin Kirkland, see
+#    Byobu's project page: https://launchpad.net/byobu for more information
+#
+#    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/>.
+
+DETAIL=0
+PKG="byobu"
+color 2>/dev/null || color() { true; }
+
+for arg in "$@"; do
+    case "$arg" in
+        -d|--detail)
+            DETAIL=1
+            ;;
+    esac
+done
+
+# Approximate Instance Cost Basis
+# Memory        US
+# 256MB         $0.015/h
+# 512MB         $0.030/h
+# 1024MB        $0.060/h
+# 2048MB        $0.120/h
+# 4096MB        $0.240/h
+# 8192MB        $0.480/h
+# 15872MB       $0.960/h
+
+# Instance memory
+memory=`grep "^MemTotal:" /proc/meminfo | awk '{print $2}'`
+
+# Round memory down to the nearest multiple of 64MB
+memory=$((${memory} - (${memory} % (64 * 1024))))
+
+# Apply the going rate
+INCREMENTS="256 512 1024 2048 4096 8192 16384 32768 65536"
+for X in ${INCREMENTS}; do
+    test "$((${X} * 1024 + 65536))" -ge ${memory} && break
+done
+MEMORY_RATE=`echo "$X" | awk '{printf "%f", $1 / 256 * 15 / 1000}'`
+
+# Data Transfer Cost Basis
+# Incoming      $0.08/GB
+# Outgoing      $0.22/GB
+RX_RATE="0.08"
+TX_RATE="0.22"
+
+# Auto detect network interface
+IF=`tail -n1 /proc/net/route  | awk '{print $1}'`
+
+ifconfig_out=`/sbin/ifconfig "$IF"`
+
+# Calculate bandwidth cost
+tx_gb=`echo "$ifconfig_out" | grep "TX bytes:" | sed "s/^.*TX bytes://" | awk '{ printf "%f", $1 / 1024 / 1024 / 1024 }'`
+rx_gb=`echo "$ifconfig_out" | 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 "$hours" | awk "{printf \"%f\", "$MEMORY_RATE" * $hours}"`
+total_cost=`echo "$network_cost" "$uptime_cost" | awk '{printf "%.2f", $1 + $2}'`
+
+if [ "$DETAIL" = "1" ]; then
+    echo "=========================================================="
+    echo "Estimated cost in Rackspace Cloud Server since last reboot"
+    echo "=========================================================="
+    echo "  Network sent:  $tx_gb GB   @ \$$RX_RATE/GB"
+    echo "  Network recv:  $rx_gb GB   @ \$$TX_RATE/GB"
+    echo "  Network cost:  \$$network_cost"
+    echo "----------------------------------------------------------"
+    echo "  Uptime:        $hours hr  @ \$$MEMORY_RATE/hr"
+    echo "  Uptime cost:   \$$uptime_cost"
+    echo "----------------------------------------------------------"
+    echo "Total cost:      ~\$$total_cost"
+    echo "=========================================================="
+    exit 0
+fi
+
+printf "$(color K G)~\$$(color -)$(color b K G)%s$(color -) " $total_cost

usr/share/byobu/profiles/common

@@ -71,6 +71,7 @@ backtick 130 	5	5		byobu-status custom
 backtick 131 	53	53		byobu-status services
 backtick 132 	11	11		byobu-status time_utc
 backtick 133 	3	3		byobu-status disk_io
+backtick 134 	613	613		byobu-status rcs_cost
 
 hardstatus alwayslastline
 

usr/share/man/man1/byobu.1

@@ -36,6 +36,8 @@ byobu \- wrapper script for seeding a user's byobu configuration and launching s
 
 \fBec2_cost\fP \- an estimation of the cost of the current boot of the system in terms of the Amazon EC2 billing model; displayed in the lower bar toward the right in green text on a black background; there is a leading '~' to indicate that this is an estimation, and the monetary units are US Dollars '$'
 
+\fBrcs_cost\fP \- an estimation of the cost of the current boot of the system in terms of the Rackspace Cloud Server billing model; displayed in the lower bar toward the right in green text on a black background; there is a leading '~' to indicate that this is an estimation, and the monetary units are US Dollars '$'
+
 \fBfan_speed\fP \- cpu or system fan speed as reported by lm-sensors; displayed in the lower bar toward the right in black text on a grey background; there is a trailing 'rpm' for units
 
 \fBhostname\fP \- the hostname of the system; displayed in the upper bar on the far right in bold black text on a grey background; there is a leading '@' symbol if the username status is also enabled