I am trying to debug a playbook I've written which uses a couple of roles
to spin up and then configure an AWS instance.
The basic structure is one playbook (`new-server.yml`) imports two roles --
`roles/ec2_instance` and `roles/start_env`. The ec2_instance role should be
ran on localhost with my AWS tokens and then the start_env role gets ran on
servers which are generated by the first role.
My playbook `new-server.yml` starts off like this:
- name: provision new instance
include_role:
name: ec2_instance
public: yes
vars:
instance_name: "{{ item.host_name }}"
env: "{{ item.git_branch }}"
env_type: "{{ item.env_type }}"
loop:
- { host_name: 'prod', git_branch: 'master', env_type: 'prod' }
- { host_name: 'test', git_branch: 'test', env_type: 'devel'}
This role builds an ec2 instance, updates route 53, uses add_host to add
the host to the in-memory inventory in the `just_created` group.
Next, I have this in the `new_server.yml` playbook. Both of my IPs show up
here just fine. My localhost does not show up here.
- name: debug just_created group
debug: msg="{{ groups['just_created'] }}"
Finally, again in `new_server.yml`, I try to do the last mile configuration
and start my application on the new instance:
- name: Configure and start environment on new instance
include_role:
name: start_env
apply:
become: yes
delegate_to: "{{ item }}"
with_items:
- "{{ groups['just_created'] }}"
However, it doesnt look like the task is delegating properly, because I
have this task in `roles/start_env/main.yml`:
- name: debug hostname
debug: msg="{{ ansible_hostname }}"
And what I'm seeing in my output is
TASK [start_env : debug hostname]
************************************************************************************************************************************
Monday 11 January 2021 12:00:05 -0800 (0:00:00.111) 0:00:37.374
********
ok: [localhost -> 10.20.15.225] => {
"msg": "My-Local-MBP"
}
TASK [start_env : debug hostname]
************************************************************************************************************************************
Monday 11 January 2021 12:00:05 -0800 (0:00:00.043) 0:00:37.417
********
ok: [localhost -> 10.20.31.35] => {
"msg": "My-Local-MBP"
}
I've read a lot about delegate_to, include_role and loops this morning. It
sounds like Ansible has made things pretty complicated when you want to
combine these things, but it also seems like the way I am trying to invoke
these should be right. Any idea what I'm doing wrong (or if there is a
smarter way to do this? I found this --
https://medium.com/opsops/ansible-2-5-delegate-to-and-include-role-20cd7e67008e
-- and while its a clever workaround, it doesn't quite fit what I'm seeing
and I'd like to avoid creating another tasks file in my roles. Not exactly
how I want to manage something like this. Most of the information I've been
going off of has been this thread:
https://github.com/ansible/ansible/issues/35398
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