This is how I do deployments on `git push` for azurefire.net.

azure-deploy.sh

# ${HOME}/bin/azure-deploy

#!/bin/sh
#
# Deployment script for azurefire.

AZURE_HOME="/var/webapp/azurefire"
export PATH=${PATH}:${HOME}/.rbenv/bin:${HOME}/.rbenv/shims

AZURE_GIT="--git-dir ${AZURE_HOME}/.git --work-tree ${AZURE_HOME}"

echo ">> Deploying azurefire."

# Pull the latest code.
git ${AZURE_GIT} pull --ff-only origin master

echo ">> Updating dependencies."

# Re-run bundler.
cd ${AZURE_HOME}
bundle install --deployment --binstubs

# Make sure everything is readable by www-data.
# With a giant hammer.
sudo chown -R :www-data ${AZURE_HOME}

echo ">> Recompiling sass templates."
bundle exec rake sass

echo ">> Kicking the unicorn."

# Kick the unicorn
sudo kill -USR2 `cat ${AZURE_HOME}/tmp/pids/unicorn.pid`

echo ">> Success!"

post-receive.sh

# /var/git/azurefire.git/hooks/post-receive

#!/bin/bash

MASTER=0

while read oldrev newrev refname
do
  BRANCH=$(git rev-parse --symbolic --abbrev-ref ${refname})
  if [ "${BRANCH}" == "master" ]; then
    MASTER=1
  fi
done

if [ "${MASTER}" != "1" ]; then
  exit 0
fi

# New code has been pushed to master. Update the live checkout and ping Unicorn for a restart.

DEPLOY=${HOME}/bin/azure-deploy

if [ ! -x ${DEPLOY} ]; then
  echo "Unable to execute ${DEPLOY}."
  exit 0
fi

exec ${DEPLOY}

setup.md

Setup

1. bare repository in /var/git/azurefire.git

   initialized with:

   git clone --bare git@github.com:smashwilson/azurefire.git /var/git/azurefire.git
   

2. live working copy in /var/webapp/azurefire

   initialized with:

   git clone /var/git/azurefire.git /var/webapp/azurefire
   

3. set up the post-receive hook in the bare repository

   See /var/git/azurefire.git/hooks/post-receive below, which calls ${HOME}/bin/azure-deploy to finalize the deployment. I'm not sure why I put azure-deploy in my home directory; probably so I can trigger it manually?

   Also, these should probably be running set -e to fail on the first nonzero exit. Hmm.

4. to do a deployment, add the bare repository as a remote:

git remote add live smash@azurefire.net:/var/git/azurefire.git

and trigger deployment with a push:

git push live master