Gemstash User Setup

gemstash_user.sh

# Set permissions on the keypair
chmod 600 gemstash.pem

# SSH into the Gem Server
ssh -i gemstash.pem ubuntu@$GEMSERVER_IP

# Make sure your Gem Server is up to date
sudo apt-get update && sudo apt-get -y upgrade

# Create a gemstash user
sudo useradd -d /home/gemstash -m gemstash

# Set the gemstash users password
sudo passwd gemstash

# Add gemstash to the pool of root users
# Insert the following: gemstash ALL=(ALL:ALL) ALL
sudo visudo

# Change user to gemstash
su - gemstash

# Create gemstash directory
mkdir -p ~/.gemstash

# Create an SSH key for gemstash - replace SOME COMMENT with your e-mail or some other identifier.
ssh-keygen -t rsa -C 'SOME COMMENT'

# Print the newly created public key. Copy this and add it as an SSH key on GitHub/BitBucket.
cat ~/.ssh/id_rsa.pub

### Break Start - Setup passwordless access to the gemserver for your local machine:

# On your own machine, print your own and copy this.
cat ~/.ssh/id_rsa.pub

# As the gemstash user on your gemserver, add your own key into the following
vi ~/.ssh/authorized_keys

# Test your passwordless access to the gemserver on your own machine:
ssh gemstash@$GEMSERVER_IP

### Break End - The following is run on your gemserver

# Setup the necessary libraries
sudo apt-get install git ruby2.3-dev zsh

# Change shell for gemstash
sudo chsh -s /bin/zsh gemstash

# Install RVM (or setup RBENV or whatever you use)
\curl -sSL https://get.rvm.io | bash -s stable
source ~/.bash_profile

# Install a version of ruby
rvm install 2.3.4
rvm use 2.3.4 --default

# Install bundler
gem install bundle

# Setup Routing, this will route all requests from port 80 (HTTP) and 443 (HTTPS) to port 8080
sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-ports 8080
sudo iptables -t nat -A PREROUTING -p tcp --dport 443 -j REDIRECT --to-ports 8080

# Persist IP Tables, choose to keep existing rules.
sudo apt-get install iptables-persistent