set up IPFS systemd service

gistfile1.txt

#!/bin/bash

#pick your IPFS version
VERS=0.7.0
DIST="go-ipfs_v${VERS}_linux-amd64.tar.gz"

sudo apt-get update
sudo apt-get install golang-go -y
wget https://dist.ipfs.io/go-ipfs/v0.4.13/$DIST
tar xvfz $DIST
rm *.gz
sudo mv go-ipfs/ipfs /usr/local/bin/ipfs
#initialized IPFS as 'ubuntu' user
#the systemd config also runs it as 'ubuntu'
ipfs init

#need to be root to write service file
sudo su
cat <<EOT >> /lib/systemd/system/ipfs.service
[Unit]
Description=IPFS daemon
After=network.target
[Service]
User=ubuntu
ExecStart=/usr/local/bin/ipfs daemon
[Install]
WantedBy=multiuser.target
EOT
exit

sudo systemctl start ipfs