add key

curl https://packagecloud.io/gpg.key | sudo apt-key add -

add sources

echo "deb https://packagecloud.io/grafana/stable/debian/ jessie main" | sudo tee /etc/apt/sources.list.d/grafana.list

update

apt update

Install

apt install grafana

configuration

sudo /bin/systemctl daemon-reload
 sudo /bin/systemctl enable grafana-server

start

sudo /bin/systemctl start grafana-server

or

sudo service grafana-server start