I have been using Ansible for a few months now and it has been a blast. I
think I got the hang of how Ansible works pretty good, but I'm still not
sure about what is the best way to reuse roles.
Let's take the "nginx" role as an example. We have Nginx installed on a lot
of servers, but besides the common steps of installing nginx, the
configuration files are a lot different (some servers only have http, some
have SSL as well, so they need certificates, different virtual hosts, etc).
What I did is created a variable called *nginx_server_type*, which you set
to a server name, or group name (which shares the same configuration files)
and then use it like this:
- name: Copy /etc/nginx/nginx.conf
template: src={{ nginx_server_type }}/etc/nginx/nginx.conf.j2
dest=/etc/nginx/nginx.conf
mode=0644
owner=root
group=root
notify: reload nginx
- name: Copy /etc/nginx/
copy: src={{ nginx_server_type }}/etc/nginx/
dest=/etc/nginx/
notify: reload nginx
Then you need to create directories inside *templates *and *files *which
are called {{ nginx_server_type }} and put the configuration files in them.
So basically every time I need a new server, I modify a role by adding
template and configuration files for that server.
This problem basically comes up for any role which is not the same for all
servers. Is there a better way to deal with this? How do you do it?
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