av/init/pi_run.sh

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#!/bin/sh -e
# This script launches rv on a pi, intended to run at boot time.
RVPATH=/home/pi/go/src/bitbucket.org/ausocean/av/cmd/rv
echo Set kernel parameters:
# kernel settings to improve performance on Raspberry Pi
# tell Linux to fork optimistically
sudo sysctl -w vm.overcommit_memory=1
# minimize swapping, without disabling it completely
sudo sysctl -w vm.swappiness=1
# the following required directories _should_ already exist
if [ ! -d /var/log/netsender ]; then
sudo mkdir /var/log/netsender
chmod guo+rwx /var/log/netsender
fi
if [ ! -d /var/netsender ]; then
sudo mkdir /var/netsender
chmod guo+rwx /var/netsender
fi
# show IP addresses
echo Our IP addresses:
sudo ip addr show | grep inet
# capture stdout and stderr to a secondary log file (just in case)
exec 2> /var/log/netsender/stream.log
exec 1>&2
# set env, working dir and run rv as pi user
HOME=/home/pi
GOPATH=$HOME/go
RVPATH=$GOPATH/src/bitbucket.org/ausocean/av/cmd/rv
PATH=$PATH:/usr/local/go/bin:$RVPATH
cd $RVPATH
sudo -u pi HOME=$HOME GOPATH=$GOPATH PATH=$PATH ./rv
if [ $? -eq 0 ]
then
echo "Successfully exited rv"
exit 0
else
echo "rv exited with code: $?" >&2
exit 1
fi