~raharper/charms/trusty/nova-compute/nova-compute-lxd

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#!/bin/bash
FORMULA_DIR=$(dirname $0)
ARG0=${0##*/}

if [[ -e $FORMULA_DIR/nova-compute-common ]] ; then
  . $FORMULA_DIR/nova-compute-common
else
  echo "ERROR: Could not load nova-compute-common from $FORMULA_DIR"
fi

function install_hook {
  apt-get -y install python-software-properties || exit 1
  add_ppa
  apt-get update || exit 1
  apt-get -y install $SERVICES || exit 1

  # XXX sudo on the ensemble sample AMI doesnt function
  # as it should (doesn't include suoders.d/*). do this
  # manually until we can use any AMI
  echo "nova ALL=(ALL) NOPASSWD:ALL" >>/etc/sudoers

  nova_ctl all stop
}

function amqp_joined {
  ensemble-log "amqp_joined: requesting credentials for $RABBIT_USER"
  echo "amqp_joined: requesting credentials for $RABBIT_USER"
  relation-set username=$RABBIT_USER
  relation-set vhost=$RABBIT_VHOST
}

function amqp_changed {
  RABBIT_HOST=`relation-get hostname`
  RABBIT_PASSWORD=`relation-get password` 
  if [[ -z $RABBIT_HOST ]] || [[ -z $RABBIT_PASSWORD ]] ; then
    echo "amqp_changed: RABBIT_HOST||RABBIT_PASSWORD not set. Peer not ready? Exit 0 and retry"
    exit 0
  fi
  echo "amqp_changed: Setting rabbit config in nova.conf: $RABBIT_HOST $RABBIT_USER $RABBIT_PASSWORD"
  set_or_update rabbit_host $RABBIT_HOST
  set_or_update rabbit_user $RABBIT_USER
  set_or_update rabbit_password $RABBIT_PASSWORD
  set_or_update rabbit_virtual_host $RABBIT_VHOST
  nova_ctl all restart
}

function db_joined {
  # tell mysql provider which database we want. it will create it and give us
  # credentials
  ensemble-log "db_joined: requesting database access to $NOVA_DB for $DB_USER@$IP"
  relation-set database=$NOVA_DB
  relation-set username=$DB_USER
  relation-set hostname=$HOSTNAME
}

function db_changed {
  DB_HOST=`relation-get db_host`
  DB_PASSWORD=`relation-get password`
  if [[ -z $DB_HOST ]] || [[ -z $DB_PASSWORD ]] ; then
    echo "db_changed: DB_HOST || DB_PASSWORD not yet set. Exit 0 and retry"
    exit 0
  fi
  echo "db_changed: Configuring nova.conf for access to $NOVA_DB"
  set_or_update sql_connection "mysql://$DB_USER:$DB_PASSWORD@$DB_HOST/$NOVA_DB"
  nova_ctl all restart
}

function nova-network_changed {
  MANAGER=`relation-get network_manager`
  if [[ -z $MANAGER ]] ; then
    echo "nova-network_changed: MANAGER not yet set. Exit 0 and retry"
    exit 0
  fi
  configure_network_manager $MANAGER
  nova_ctl all restart
}

function image-service_changed {
  GLANCE_API_SERVER=`relation-get glance-api-server`
  if [[ -z $GLANCE_API_SERVER ]] ; then
    echo "image-service_changed: GLANCE_API_SERVER not yet set. Exit 0 and retry"
    exit 0
  fi
  set_or_update glance_api_servers $GLANCE_API_SERVER
  nova_ctl all restart
}

case $ARG0 in
  "install") install_hook ;;
  "start"|"stop") exit 0 ;;
  "amqp-relation-joined") amqp_joined ;;
  "amqp-relation-changed") amqp_changed ;;
  "shared-db-relation-joined") db_joined ;;
  "shared-db-relation-changed") db_changed ;;
  "nova-network-relation-joined") exit 0 ;;
  "nova-network-relation-changed") nova-network_changed ;;
  "image-service-relation-joined") exit 0 ;;
  "image-service-relation-changed") image-service_changed ;;
esac