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#!/usr/bin/env bash
# **exercise.sh** - using the cloud can be fun
# we will use the ``nova`` cli tool provided by the ``python-novaclient``
# package
#
# This script exits on an error so that errors don't compound and you see
# only the first error that occured.
set -o errexit
# Print the commands being run so that we can see the command that triggers
# an error. It is also useful for following allowing as the install occurs.
set -o xtrace
# Settings
# ========
HOST=${HOST:-localhost}
# Nova original used project_id as the *account* that owned resources (servers,
# ip address, ...) With the addition of Keystone we have standardized on the
# term **tenant** as the entity that owns the resources. **novaclient** still
# uses the old deprecated terms project_id.
export NOVA_PROJECT_ID=${TENANT:-2}
# In addition to the owning entity (tenant), nova stores the entity performing
# the action as the **user**.
export NOVA_USERNAME=${USERNAME:-demo}
# With Keystone you pass the keystone password instead of an api key.
export NOVA_API_KEY=${PASSWORD:-secrete}
# With the addition of Keystone, to use an openstack cloud you should
# authenticate against keystone, which returns a **Token** and **Service
# Catalog**. The catalog contains the endpoint for all services the user/tenant
# has access to - including nova, glance, keystone, swift, ... We currently
# recommend using the 2.0 *auth api*.
#
# *NOTE*: Using the 2.0 *auth api* does mean that compute api is 2.0. We will
# use the 1.1 *compute api*
export NOVA_URL=${NOVA_URL:-http://$HOST:5000/v2.0/}
# Currently novaclient needs you to specify the *compute api* version. This
# needs to match the config of your catalog returned by Keystone.
export NOVA_VERSION=1.1
# FIXME - why does this need to be specified?
export NOVA_REGION_NAME=RegionOne
# Launching a server
# ==================
# List servers for tenant:
nova list
# List of flavors:
nova flavor-list
# Images
# ------
# Nova has a **deprecated** way of listing images.
nova image-list
# But we recommend using glance directly
glance index
# show details of the active servers::
#
# nova show 1234
#
nova list | grep ACTIVE | cut -d \| -f2 | xargs -n1 nova show