openstack heat doesn't recognize key_name parameter - openstack

Question

hy
i have an openstack deployed on my laptop. i'm trying to create a stack with heat.
i have created a keypair openstack keypair create heat_key > heat_key.priv
which is recognized by nova nova keypair-list give the following output :
+----------+------+-------------------------------------------------+
| Name | Type | Fingerprint |
+----------+------+-------------------------------------------------+
| heat_key | ssh | 0b:7a:36:20:e2:e3:19:3b:ab:a1:95:ac:67:41:67:d7 |
+----------+------+-------------------------------------------------+
this is my simple HOT template :
heat_template_version: 2013-05-23
description: Hot Template to deploy a single server
parameters:
image_id:
type: string
description: Image ID
key_name:
type: string
description: name of keypair to enable ssh to the instance
resources:
test_stack:
type: OS::Nova::Server
properties:
name: "test_stack"
image: { get_param: image_id }
flavor: "ds1G"
key_name:{ get_param: key_name }
outputs:
test_stack_ip:
description: IP of the server
value: { get_attr: [ test_stack, first_address ] }
when i try to create the stack
openstack stack create -t myTemp.hot --parameter key_name=heat_key --parameter image_id=trusty-server-cloudimg-amd64-disk1 test_stack
i get the following error
ERROR: Property error: : resources.test_stack.properties: : Unknown Property key_name:{ get_param
i have tried with different versions of templates but i get the same error
any idea why this is happening?

Answer 1

WORST part about the YAML file is, it is SPACE sensitive, so we need to be really careful while editing or copying conetent of HEAT templete. There is no space between "key_name" and "{" which is why it is failing.
key_name:{ get_param: key_pair_name }
Just put an extra space between these and it will work. I tested it :-)
key_name: { get_param: key_pair_name }

Answer 2

I was able to do it by providing the details in parameters . PFB Sample script which worked for me.
heat_template_version: 2016-10-14
description: Admin VM - Test Heat
parameters:
image_name_1:
type: string
label: Centos-7.0
description: Centos Linux 7.0
default: Centos-7.0
network_id_E1:
type: string
label: 58e867ce-841c-48cf-8116-e72d998dbc89
description: Admin External Network
default: Admin
network_id_E1:
type: string
label: 4f69c8e5-8f52-4804-89e0-2c8232f9f3aa
description: Internal-1 Network
default: SR-IOV Interface
network_id_I2:
type: string
label: 28120cdb-7e8b-4e8b-821f-7c7d8df37c1d
description: Internal-2 Network
default: Internal-2
KeyName:
type: string
default: IO_Perf_Cnt
description: Name of an existing key pair to use for the instance
constraints:
- custom_constraint: nova.keypair
description: Must name a public key (pair) known to Nova
resources:
AdminVM1:
type: OS::Nova::Server
properties:
availability_zone: naz3
image: { get_param: image_name_1 }
flavor: 4vcpu_8192MBmem_40GBdisk
key_name: { get_param: KeyName }
networks:
- network: { get_param : network_id_E1 }

Answer 3

Try to change the parameter name key_name to some other name and execute it
heat_template_version: 2015-10-15
description: Hot Template to deploy a single server
parameters:
image_id:
type: string
description: Image ID
key_pair_name:
type: string
description: name of keypair to enable ssh to the instance
resources:
test_stack:
type: OS::Nova::Server
properties:
name: "test_stack"
image: { get_param: image_id }
flavor: "ds1G"
key_name: { get_param: key_pair_name }
outputs:
test_stack_ip:
description: IP of the server
value: { get_attr: [ test_stack, first_address ] }