heat/doc/source/getting_started/create_a_stack.rst

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.. _create-a-stack:

Creating your first stack
=========================

Confirming you can access a Heat endpoint
-----------------------------------------

Before any Heat commands can be run, your cloud credentials need to be
sourced::

    $ source openrc

You can confirm that Heat is available with this command::

    $ openstack stack list

This should return an empty line

Preparing to create a stack
---------------------------

Your cloud will have different flavors and images available for
launching instances, you can discover what is available by running::

    $ openstack flavor list
    $ openstack image list


To allow you to SSH into instances launched by Heat, a keypair will be
generated::

    $ openstack keypair create heat_key > heat_key.priv
    $ chmod 600 heat_key.priv

Launching a stack
-----------------
Now lets launch a stack, using an example template from the heat-templates repository::

    $ openstack stack create -t http://git.openstack.org/cgit/openstack/heat-templates/plain/hot/F20/WordPress_Native.yaml --parameter key_name=heat_key --parameter image_id=my-fedora-image --parameter instance_type=m1.small teststack

Which will respond::

    +--------------------------------------+-----------+--------------------+----------------------+
    | ID                                   | Name      | Status             | Created              |
    +--------------------------------------+-----------+--------------------+----------------------+
    | (uuid)                               | teststack | CREATE_IN_PROGRESS | (timestamp)          |
    +--------------------------------------+-----------+--------------------+----------------------+


.. note::
   Link on Heat template presented in command above should reference on RAW
   template. In case if it be a "html" page with template, Heat will return
   an error.

List stacks
~~~~~~~~~~~
List the stacks in your tenant::

    $ openstack stack list

List stack events
~~~~~~~~~~~~~~~~~
List the events related to a particular stack::

   $ openstack stack event list teststack

Describe the wordpress stack
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Show detailed state of a stack::

   $ openstack stack show teststack

Note: After a few seconds, the stack_status should change from ``IN_PROGRESS``
to ``CREATE_COMPLETE``.

Verify instance creation
~~~~~~~~~~~~~~~~~~~~~~~~
Because the software takes some time to install from the repository, it may be
a few minutes before the Wordpress instance is in a running state.

Point a web browser at the location given by the ``WebsiteURL`` output as shown
by ``openstack stack output show``::

    $ WebsiteURL=$(openstack stack output show teststack WebsiteURL -c output_value -f value)
    $ curl $WebsiteURL

Delete the instance when done
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Note: The list operation will show no running stack.::

    $ openstack stack delete teststack
    $ openstack stack list

You can explore other heat commands by referring to the
`Heat chapter
<http://docs.openstack.org/cli-reference/heat.html>`_
of the `OpenStack Command-Line Interface Reference
<http://docs.openstack.org/cli-reference/index.html>`_ then read
the :ref:`template-guide` and start authoring your own templates.