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 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 of the OpenStack Command-Line Interface Reference then read the Template Guide and start authoring your own templates.
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