uberspace-setup-redis.sh

#!/bin/bash
# we've moved on to ansible. there will be no more updates to this script.
MYUID=`id -u`

if [ "$MYUID" = "0" ] ; then
  echo "This script is not meant to be run as root."
  exit 1
fi

if [ ! -d ~/service ] ; then
  echo "You don't have a ~/service directory."
  echo "Please run \"uberspace-setup-svscan\" first to initialize daemon-tools before setting up Redis."
  exit 1
fi

for DIR in ~/.redis ~/service/redis ~/etc/run-redis ; do
  if [ -d $DIR ] ; then
    echo "You already have a $DIR directory. Nothing to do here."
    exit 1
  fi
done

# We no longer need to build redis. It's preinstalled on all hosts.
#echo "Installing redis. This might take some time."
#toast arm redis

# create configuration for redis
echo "Creating Redis-configuration"
mkdir ~/.redis
cat <<__EOF__ > ~/.redis/conf
unixsocket /home/$USER/.redis/sock
daemonize no
logfile stdout
port 0
__EOF__

mkdir ~/etc/run-redis
cat <<__EOF__ > ~/etc/run-redis/run
#!/bin/sh
exec redis-server ~/.redis/conf 2>&1
__EOF__
chmod 755 ~/etc/run-redis/run

# Create the logging-script for redis/daemon-tools
echo "Creating the ~/etc/run-redis/log/run logging run script"
mkdir ~/etc/run-redis/log
cat <<__EOF__ > ~/etc/run-redis/log/run
#!/bin/sh
exec multilog t ./main
__EOF__
chmod 755 ~/etc/run-redis/log/run

echo "Creating symlink for ~/etc/run-redis to ~/service/redis to start the service"
ln -s ../etc/run-redis ~/service/redis

# Check if redis-service starts sucessfully
WAIT=0
echo -n "Waiting for Redis to start..."
while [ $WAIT -lt 6 ]; do
  WAIT=$(($WAIT+1))
  echo -n "."
  svok ~/service/redis 2>/dev/null
  SVOK=$?
  if [ "$SVOK" = "0" ] ; then
    break
  fi
  sleep 1
done

if [ "$SVOK" != "0" ] ; then
  echo " failed."
  echo "We're really sorry; this shouldn't have happened - please contact hallo@uberspace.de for help. Thanks a lot!"
  exit 4
fi

# famous last words
echo "Everything's been setup. You can use Redis now."
echo
echo "Please note that Redis does not use TCP."
echo "Instead, we setup Redis to use a UNIX-Socket to connect to."
echo
echo "To connect to redis via socket, use:"
echo
echo "redis-cli -s ~/.redis/sock"
echo