dnsmasq script

README.md

Running

$ bash <(curl -Ls https://gist.githubusercontent.com/mshick/414612f1f5426242d4fa0744d509a82a/raw/dnsmasq-setup.sh)

sudo permissions are required

What?

This will configure a homebrew installed dnsmasq service with .test and .localhost TLDs, and will add the LaunchDaemon to your system startup.

Why?

dnsmasq is a small utility which allows you (among other things) to create dynamic local hostnames and TLDs. This is useful for developers who need something other than http://localhost for local projects.

dnsmasq-setup.sh

#!/bin/sh

echo "configuring dnsmasq"

brew_prefix="$(brew --prefix)"
dnsmasq_conf_file="${brew_prefix}/etc/dnsmasq.conf"
dnsmasq_plist="/Library/LaunchDaemons/homebrew.mxcl.dnsmasq.plist"
test_address="address=/.test/127.0.0.1"
localhost_address="address=/.localhost/127.0.0.1"

if ! [ -x "$(command -v dnsmasq)" ]; then
  echo "dnsmasq not found, installing with homebrew"
  brew install dnsmasq
fi

echo "sudo permissions will be required to add a LaunchDaemon and edit /etc/resolver"

# Get sudo permissions
sudo -v

if ! [ -f "${brew_prefix}/etc/dnsmasq.conf" ]; then
  echo "creating dnsmasq.conf files and directories"
  mkdir -p "${brew_prefix}/etc/"
  touch "${dnsmasq_conf_file}"
  sudo mkdir /etc/resolver
fi

if ! [ "$(grep -q "^${test_address}" ${dnsmasq_conf_file})" ]; then
  echo "creating .test TLD"
  printf "\n${test_address}\n" >> "${dnsmasq_conf_file}"
  sudo bash -c 'echo "nameserver 127.0.0.1" > /etc/resolver/test'
else
  echo ".test TLD already exists, skipping"
fi

if ! [ "$(grep -q "^${localhost_address}" ${dnsmasq_conf_file})" ]; then
  echo "creating .localhost TLD"
  printf "\n${localhost_address}\n" >> "${dnsmasq_conf_file}"
  sudo bash -c 'echo "nameserver 127.0.0.1" > /etc/resolver/localhost'
else
  echo ".localhost TLD already exists, skipping"
fi

if ! [ -f "${dnsmasq_plist}" ]; then
  echo "installing LaunchDaemon"
  sudo cp $(brew --prefix dnsmasq)/homebrew.mxcl.dnsmasq.plist /Library/LaunchDaemons
  sudo launchctl load -w /Library/LaunchDaemons/homebrew.mxcl.dnsmasq.plist
fi

echo "dnsmasq successfully configured"

exit 0