redis 4 ubuntu - ref https://gist.github.com/hackedunit/a53f0b5376b3772d278078f686b04d38

gistfile1.txt

apt-get update
apt-get upgrade -y

sudo apt-get install build-essential tcl -y

curl -O http://download.redis.io/redis-stable.tar.gz
tar xzvf redis-stable.tar.gz
cd redis-stable
make
sudo make install
sudo mkdir /etc/redis
sudo cp /tmp/redis-stable/redis.conf /etc/redis

sudo adduser --system --group --no-create-home redis
sudo mkdir /var/lib/redis
sudo chown redis:redis /var/lib/redis
sudo chmod 770 /var/lib/redis