Thanks Todd,
It worked. So because "delegate_to" the localhost host variables are not
available I need to pass the variables with hostvars[ host ], right?
Thank you I will correct the entire playbook
On Saturday, January 13, 2024 at 12:52:55 PM UTC-4 Todd Lewis wrote:
> It's even stranger than that (until you realize what's going on).
> Rather than commenting out the "ansible_ssh_user:" line, just misspell
> the variable, like "ansible_ssh_userx". It'll work then, too — but with
> the wrong user of course.
>
> What you're running into is a combination of things: set_fact, delegate_to,
> and the bit you didn't show, which is your playbook's "hosts:" line
> and/or your command's "--limit" specification. Also the "special
> variable" function of the "ansible_ssh_user" variable itself. Maybe throw
> in lazy variable template evaluation for good measure.
>
> The error message is correct but incomplete, in that "aws_region" is
> undefined. What the message leaves out is "… in the context of the
> delegation host 'ec2.instances.0.network_interfaces.0.private_ip_address'
> ".
>
> You set the task variable "ansible_ssh_user" to a template. By lazy
> template evaluation, that template isn't evaluated until the variable is
> used, which is at the point of connection. So it's evaluated in the context
> of a host *which has no set_fact-derived variables defined*:
> 'ec2.instances.0.network_interfaces.0.private_ip_address'. Only your play
> hosts will have set_fact-derived variables.
>
> Assuming your hosts line is something like "hosts: localhost", then you
> can work around it by changing your variable definition to
> ansible_ssh_user: "{{ amis[*hostvars['localhost'].*aws_region][
> *hostvars['localhost'].*os_version].user }}"
>
> I'm reasonably sure (but could be wrong) that the "amis" dict is defined,
> because it isn't a host variable. That's different from set_fact-derived
> variables which are both host-specific and template resolved at their
> creation.
>
> Let us know if this resolves your issue.
> --
> Todd
>
>
> On Saturday, January 13, 2024 at 9:40:57 AM UTC-5 ricardo barbosa wrote:
>
>> Hello guys
>>
>> I created the following structure:
>>
>> ```
>> amis:
>> us-east-1:
>> amazonlinux:
>> owner_id: "137112412989"
>> x86_64: "ami-01bc990364452ab3e"
>> arm64: "ami-0900a8f768a21540a"
>> user: "ec2-user"
>> ubuntu:
>> owner_id: "099720109477"
>> x86_64: "ami-0fc5d935ebf8bc3bc" # Ubuntu 22
>> arm64: "ami-016485166ec7fa705" #
>> user: "ubuntu"
>> ```
>>
>> and I have a json file that I fill in to raise an ec2 instance:
>>
>> ```json
>> {
>> "aws_region":"us-east-1",
>> "architecture":"arm64",
>> "os_version":"ubuntu",
>> "instance_name":"test6",
>> "domain":"example.corp",
>> "subnet":"SUBNET-PUB-A",
>> "instance_type":"t4g.micro",
>> "security_groups": [ "sg-xxxxxx", "sg-yyyyyyyy"],
>> "aws_role":"default-role",
>> "root_volume_size":20,
>> "ebs_swap_size": 4,
>> "keyname": "ssh-key",
>> "ebs_type": "gp3",
>> "backup": "no",
>> "boxenv":"DEV"
>> }
>> ```
>>
>> And I read this json and create the variables with the tasks:
>>
>> ```
>> - name: Read json configuration
>> shell: cat config-ec2-launch.json
>> register: result
>>
>> - name: save the Json data to a Variable as a Fact
>> set_fact:
>> jsondata: "{{ result.stdout | from_json }}"
>>
>> - name: Variable | Get aws_region variable
>> set_fact:
>> aws_region: "{{ jsondata | json_query(jmesquery) }}"
>> vars:
>> jmesquery: 'aws_region'
>>
>> - name: Variable | Get architecture variable
>> set_fact:
>> architecture: "{{ jsondata | json_query(jmesquery) }}"
>> vars:
>> jmesquery: 'architecture'
>>
>> - name: Variable | Get os_version variable
>> set_fact:
>> os_version: "{{ jsondata | json_query(jmesquery) }}"
>> vars:
>> jmesquery: 'os_version'
>> ```
>>
>> and created the tasks right away:
>>
>> ```
>> - name: AWS Ec2 Instance | Create the EC2 instance
>> ec2_instance:
>> state: started # started state=running + waits for EC2 status
>> checks to report OK if wait=true
>> image_id: "{{ newest_ami }}"
>> name: "{{ instance_name }}"
>> detailed_monitoring: false
>> metadata_options:
>> http_tokens: required
>> instance_type: "{{ instance_type }}"
>> region: "{{ aws_region }}"
>> vpc_subnet_id: "{{ subnet_facts.subnets.0.id }}"
>> instance_initiated_shutdown_behavior: stop
>> instance_role: "{{ aws_roles[aws_role] }}"
>> volumes:
>> - device_name: "{{ name_device_root_ami.images.0.root_device_name
>> }}"
>> ebs:
>> volume_type: gp3
>> volume_size: "{{ root_volume_size }}"
>> delete_on_termination: true
>> security_groups: "{{ security_groups }}"
>> tags:
>> Name: "{{ instance_name }}"
>> Domain: "{{ domain }}"
>> Backup: "{{ backup }}"
>> BOXENV: "{{ boxenv }}"
>> key_name: "{{ aws_key_names[keyname] }}"
>> wait: yes
>> register: ec2
>>
>> - name: AWS Ec2 ebs | Add volume to swap
>> amazon.aws.ec2_vol:
>> instance: "{{ ec2.instances[0].instance_id }}"
>> volume_size: "{{ ebs_swap_size }}"
>> volume_type: "{{ ebs_type }}"
>> delete_on_termination: True
>> device_name: "/dev/sdf"
>> region: '{{ aws_region }}'
>> tags:
>> Name: "{{ instance_name }}:swap"
>> BOXENV: "{{ boxenv }}"
>>
>>
>> - name: Swap | List all devices on {{ instance_name }}
>> vars:
>> ansible_ssh_user: "{{ amis[ aws_region ][ os_version ].user }}"
>> ansible.builtin.shell: echo "{{ aws_region }} {{
>> ec2.instances.0.network_interfaces.0.private_ip_address }}"
>> register: devices_host
>> delegate_to: "{{
>> ec2.instances.0.network_interfaces.0.private_ip_address }}"
>> args:
>> executable: /bin/bash
>> ```
>>
>> But when I run it, it displays the error below
>>
>> ```
>> FAILED! => {"msg": "'aws_region' is undefined"}
>> ```
>>
>> If I comment the line `ansible_ssh_user: "{{ amis[ aws_region ][
>> os_version ].user }}"` it displays the contents of the aws_region variable.
>> Any
>> idea where I'm going wrong?
>>
>> Thanks
>>
>>
>>
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