Ansible ec2_asg module does not find launch configuration - ansible

Question

I'm trying to get Ansible to create a launch configuration (using ec2_lc) and auto scaling group (ec2_asg). My playbook creates the launch configuration just fine, but the ASG is creating an error:
fatal: [localhost -> localhost]: FAILED! => {"changed": false, "msg": "No launch config found with name {'name': 'dockerLC', 'instance_type': 't2.micro', 'image_id': 'ami-e97c548c', 'changed': False, 'failed': False, 'arn': None, 'created_time': 'None', 'security_groups': ['sg-e0c0de88'], 'result': {'image_id': 'ami-e97c548c', 'key_name': 'ansible-keys', 'launch_configuration_name': 'dockerLC', 'ebs_optimized': False, 'instance_type': 't2.micro', 'created_time': 'None', 'associate_public_ip_address': True, 'instance_monitoring': False, 'placement_tenancy': 'default', 'security_groups': ['sg-e0c0de88'], 'block_device_mappings': []}}"}
I'm unsure why this error is being thrown because I certainly have a dockerLC launch configuration in the AWS EC2 web interface. My playbook is below.
tasks:
- name: Create Launch Configuration
local_action:
module: ec2_lc
name: dockerLC
region: '{{ aws_region }}'
image_id: '{{ ami_id }}'
key_name: '{{ key_name }}'
security_groups: '{{ security_group_id }}'
# security_groups: '{{ security_group }}'
instance_type: '{{ instance_type }}'
assign_public_ip: True
vpc_id: '{{ vpc }}'
register: lc
# - pause:
# seconds: 10
- name: Create Auto Scaling Group
local_action:
module: ec2_asg
name: dockerASG
region: '{{ aws_region }}'
launch_config_name: '{{ lc }}'
min_size: 3
max_size: 5
wait_for_instances: True
availability_zones: ['us-east-2a', 'us-east-2b', 'us-east-2c']
vpc_zone_identifier: ' {{ vpc_zones }} '
tags:
- function: docker
billingGroup: Work

Answer 1

When you register a variable for tasks the variable is usually a hash containing more information than just a string. In this case, there is a hash containing:
{
'name':'dockerLC',
'instance_type':'t2.micro',
'image_id':'ami-e97c548c',
'changed':False,
'failed':False,
'arn':None,
'created_time':'None',
'security_groups':[
'sg-e0c0de88'
],
'result':{
'image_id':'ami-e97c548c',
'key_name':'ansible-keys',
'launch_configuration_name':'dockerLC',
'ebs_optimized':False,
'instance_type':'t2.micro',
'created_time':'None',
'associate_public_ip_address':True,
'instance_monitoring':False,
'placement_tenancy':'default',
'security_groups':[
'sg-e0c0de88'
],
'block_device_mappings':[
]
}
}
But launch_config_name wants just the name as a string. In this case, you want to reference launch_config_name: '{{ lc.name }}' which is the name of the launch configuration. You could likely also use the ariable lc.result.launch_configuration_name as well (as an example).