Hi Dave,
I use a single play to get an RDS endpoint and write database.yml. It uses
`local_action` to delegate the rds facts lookup to localhost.
For the example that you've shared, it would look like the following:
- hosts: tag_class_apps
become: yes
become_user: "{{ app_user }}"
gather_facts: False
tasks:
- local_action:
module: rds
command: facts
region: "{{ region }}"
instance_name: "{{ database_instance }}"
register: db_facts
- name: Update database.yml with current rds endpoint
template:
src: ../roles/app_directories/templates/config/database.yml
I hope this is helpful.
-Baraa
On Friday, July 17, 2015 at 10:04:26 PM UTC-4, Dave Thomas wrote:
>
> I’d trying to get the database endpoint into a Rails database.ml file. I
> know the RDS id, so I can get the endpoint using reds/command: facts.
>
> Unfortunately, the RDS play has to use localhost, while the template write
> uses the actual target host.
>
> So far I’ve done it using
>
> - hosts: localhost
> connection: local
> gather_facts: False
> vars_files:
> - ../ec2/ec2_params.yml
>
> tasks:
> - rds:
> command: facts
> region: "{{ region }}"
> instance_name: "{{ database_instance }}"
> register: db_facts
>
> - name: save remote host
> copy:
> content: "{{ db_facts.instance }}"
> dest: /tmp/db_facts
>
> - hosts: tag_class_apps
> become: yes
> become_user: "{{ app_user }}"
> gather_facts: False
>
> vars:
> db_facts: "{{ lookup('file', '/tmp/db_facts')|from_json }}"
>
> tasks:
> - name: Update database.yml with current rds endpoint
> template:
> src: ../roles/app_directories/templates/config/database.yml # this
> template uses db_facts.endpoint
> dest: "{{ shared_path }}/config/database.yml"I can’t help feeling I’m
> making this too complex. What should I be doing?
>
> I can't help feeling I'm making this too complicated. What magic am I
> missing?
>
>
> Cheers
>
>
> Dave
>
>
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