ember_deploy.sh

#!/bin/bash

# Fail if any commands fail
set -e
set -o pipefail

# These are ec2 tags from which we will determine where to deploy
ec2_stage=$DEPLOY_STAGE
ec2_app="core"
ec2_role="app"

# What env to use to compile ember app?
ember_env=$EMBER_ENV

# What bucket to put it into on S3
bucket="bucket-for-my-ember-app"

destination="/path/to/where/ember/lives"
rails_app="/path/to/my/rails/app"

deploy_cmd="mkdir -p $destination && wget -qO- https://s3.amazonaws.com/$bucket/$ec2_stage/release.tgz | tar xzvf - -C $destination && cd $rails_app/public && ln -nfs $destination ."

function build_app() {
  npm install
  node_modules/.bin/bower install
  node_modules/.bin/ember build --environment $ember_env
  cd dist
  tar -czf ../release.tgz .
  cd -
  echo "Created release: `ls -alh release.tgz`"

  # Uploading our artifact
  aws s3 cp release.tgz s3://$bucket/$ec2_stage/ --acl public-read
}

# using aws cli hit up the api and return the nodes we want to deploy to
function fetch_ips() {
  ips=$(aws ec2 describe-instances \
    --filters "[{\"Name\":\"tag:app\", \"Values\":[\"$ec2_app\"]},{\"Name\":\"tag:stage\", \"Values\":[\"$ec2_stage\"]}, {\"Name\":\"tag:role\", \"Values\":[\"$ec2_role\"]}]" \
    --query="Reservations[*].Instances[*].PrivateIpAddress" \
    --output text)
}

# loop through ips returned from aws and run our deploy_cmd
function deploy {
  echo "Deploying to $ips"
  for ip in $ips; do
    echo "ssh someuser@$ip \"$deploy_cmd\""
    ssh reverb@$ip "$deploy_cmd"
  done
}

build_app
fetch_ips
deploy