redis.auto.sh

function createRedisInstance() {  
  export BASE_PATH=$HOME/redis-storage;
  export INSTANCES_COUNT=$(sudo find $BASE_PATH -maxdepth 1 -type d | wc -w);
  export PORT=$1
  export REDIS_PASSWORD=$2
  export DBNAME=redis$PORT;
  export INSTALLFOLDER=$BASE_PATH/$DBNAME;
  export CONFIGFILE=$INSTALLFOLDER/redis.conf;
  export SYSTEMDFILE=/etc/systemd/system/$DBNAME.service;
  export PIDFILE=$INSTALLFOLDER/redis.pid;
  export LOGFILE=$INSTALLFOLDER/redis.log;
  export DUMPFILE=$INSTALLFOLDER/dump.rdb;
  export DATADIRECTORY=$INSTALLFOLDER/data;

  sudo mkdir -p $INSTALLFOLDER;
  sudo chown -R redis:redis $INSTALLFOLDER;

  sudo mkdir -p $DATADIRECTORY;
  sudo chown -R redis:redis $DATADIRECTORY;

  sudo cp -p $HOME/redis-storage/redis.conf.orig $CONFIGFILE;

  sudo sed -i "s|pidfile .*|pidfile $PIDFILE|" $CONFIGFILE;
  sudo sed -i "s|logfile .*|logfile $LOGFILE|" $CONFIGFILE;
  sudo sed -i "s|dir .*|dir $DATADIRECTORY|" $CONFIGFILE;
  sudo sed -i "s|port 6379|port $PORT|" $CONFIGFILE;
  sudo sed -i "s|bind .*|bind 0.0.0.0|" $CONFIGFILE;
  sudo sed -i "s|# requirepass .*|requirepass $REDIS_PASSWORD|" $CONFIGFILE;

  sudo cp -p $HOME/redis-storage/redis.service.orig $SYSTEMDFILE;
  sudo sed -i "s|ExecStart=.*|ExecStart=/usr/local/bin/redis-server $CONFIGFILE|" $SYSTEMDFILE;
  sudo sed -i "s|ReadWriteDirectories=.*|ReadWriteDirectories=$DATADIRECTORY|" $SYSTEMDFILE;
  sudo sed -i "s|PIDFile=.*|PIDFile=$PIDFILE|" $SYSTEMDFILE;

  sudo systemctl enable $DBNAME.service;
  sudo systemctl start $DBNAME.service;
}

createRedisInstance "$@"; exit