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#!/bin/bash
#
# Deploy a node using automated recipes. See discussion at
#
# - http://current.workingdirectory.net/posts/2011/puppet-without-masters/
# - http://andrewbunday.co.uk/2012/12/04/masterless-puppet-wrapper/
# - http://semicomplete.com/presentations/puppet-at-loggly/puppet-at-loggly.pdf.html
# - https://github.com/jordansissel/puppet-examples/tree/master/masterless
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program.  If not, see
# <http://www.gnu.org/licenses/>.

# Load
source $APP_BASE/lib/hydra/functions || exit 1
hydra_config_load

# Command line arguments
NODES="$*"

# Build node list
if [ -z "$NODES" ]; then
  NODES="`hydra $HYDRA nodes`"
fi

# Banner
echo '.__              .___                   .___            .__                ._.'
echo '|  |__ ___.__. __| _/___________      __| _/____ ______ |  |   ____ ___.__.| |'
echo '|  |  <   |  |/ __ |\_  __ \__  \    / __ |/ __ \\____ \|  |  /  _ <   |  || |'
echo '|   Y  \___  / /_/ | |  | \// __ \_ / /_/ \  ___/|  |_> >  |_(  <_> )___  | \|'
echo '|___|  / ____\____ | |__|  (____  / \____ |\___  >   __/|____/\____// ____| __'
echo '     \/\/         \/            \/       \/    \/|__|               \/      \/'
echo ''

# Deploy
for node in $NODES; do
  if [ -d "$node" ]; then
    echo "Deploying to $node folder..."

    # Setup deploy environment
    FOLDER=$node
    hydra_deploy_setup folder $FOLDER

    # Check if puppet is installed
    if [ ! -e "$FOLDER/usr/bin/puppet" ]; then
      echo "Installing dependencies..."
      $DEPLOY_COMMAND apt-get update
      $DEPLOY_COMMAND DEBIAN_FRONTEND=noninteractive apt-get install $DEPLOY_DEPENDENCIES -y
    fi

    # Create folders
    hydra_deploy_mkdirs

    # Sync repository to server
    echo "Syncing configuration..."
    $DEPLOY_RSYNC "$RSYNC_PATH" $DEPLOY_OPTS

    # Copy keys
    hydra_deploy_copy_keys folder

    # Copy config configuration
    hydra_deploy_copy_secrets folder

    # Run puppet, overriding FQDN
    echo "Applying configuration..."
    LC_ALL=C HOSTNAME=$FQDN FACTER_domain=$DOMAIN FACTER_hostname=$FQDN FACTER_fqdn=$HOSTNAME.$DOMAIN $DEPLOY_APPLY
  elif [ "$node" == "localhost" ] || [ "$node" == "`facter fqdn`" ] || [ "$node" == "`facter hostname`" ]; then
    echo "Deploying to localhost..."

    # Setup deploy environment
    hydra_deploy_setup

    # Check if puppet is installed
    if [ ! -e "/usr/bin/puppet" ]; then
      $SUDO apt-get update
      $SUDO apt-get install $DEPLOY_DEPENDENCIES -y
    fi

    # Run puppet
    echo "Applying configuration..."
    $DEPLOY_APPLY
  else
    echo "Deploying to $node..."

    # Setup deploy environment
    hydra_deploy_setup remote $node

    # Check if puppet is installed
    $HYDRA_CONNECT $node <<EOF
    ##### BEGIN REMOTE SCRIPT #####
    if ! which puppet &> /dev/null; then
      echo "Installing dependencies..."
      sudo apt-get update
      sudo apt-get install $DEPLOY_DEPENDENCIES -y
    fi
    ##### END REMOTE SCRIPT #######
EOF

    # Create folders
    hydra_deploy_mkdirs

    # Sync repository to server
    echo "Syncing configuration..."
    $DEPLOY_RSYNC "$RSYNC_PATH" $DEPLOY_OPTS

    # Copy keys
    hydra_deploy_copy_keys remote

    # Copy configuration
    hydra_deploy_copy_secrets remote

    # Run puppet
    echo "Applying configuration..."
    $DEPLOY_APPLY
  fi
done