Hi guys,
I've got something I'd really like some help on, not just the solution, but
the understanding and perhaps any related documentation/articles.
I'm writing a role for deployment of Hubot.
To define bots to be deployed, I'm using a dictionary, like so:
hubot_bots:
testbot:
owner: 'Bot Wrangler <b...@example.com>'
name: Hubot
descr: Delightfully aware robutt
adapter: rocketchat
environment:
- rocketchat_room: GENERAL
- rocketchat_user: Hubot
- rocketchat_password: Hubot
Using 'with_items' I can iterate over items in 'hubot_bots', like 'testbot'
here, and create resources, such as directories named after the key 'testbot'
and then run commands accessing the values using 'item.value.owner' and '
item.value.adapter', etc.
Now, for each of these bot definitions, I want to deploy a Systemd service
file, for management of each bot process.
Within this template, I want to refer to some of the values as defined
above, including iterating over each key/value in the 'environment' list.
I tried my best the other evening with a few combinations of 'with_dict'
and 'with_nested' and felt I was making some progress, but definitely not
getting the desired results, nor understanding how it was working.
Here's the task I'm deploying the template with:
- name: Deploy service files for each Hubot
template:
src: hubot.service.j2
dest: /usr/lib/systemd/system/hubot-{{ item.key }}.service
owner: root
group: root
mode: 0644
with_dict: hubot_bots
And here's the template I'm using:
[Unit]
Description=Hubot-{{ item }}
Requires=network.target
After=network.target
[Service]
Type=simple
WorkingDirectory={{ hubot_village_path }}/{{ item }}
User={{ hubot_admin_user }}
Restart=always
RestartSec=10
{% for env in item.value.environment %}
Environment={{ env|upper}}={{ env.value }}
{% endfor %}
ExecStart={{ hubot_village_path }}/{{ item }}/bin/hubot --adapter {{ item.
value.adapter }}
[Install]
WantedBy=multi-user.target
As you can see, I want to refer to each bot defined under 'hubot_bots' and
then some other values.
Would anyone be able to point me in the right direction on how to get the
desired outcome, and understand how this works.
Any documentation or articles would be great. I'm still grasping concepts
with YAML structures and the Jinja2 template engine - I'd love to learn as
much as I can about it, as I can see it can be very powerful.
So, thank you so much in advance if anyone can help me on this!
Kind Regards,
Calum
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