Basic templating via yaml

[mhf-ir]

have config file.

‍‍

hosts:
  - ali
  - mamad

‍
And template file:

{{ range $sn := $hosts }}
server {
  server_name {{ $sn }};
}
{{ end }}

‍

How can i run gomplate for generate:

server {
  server_name ali;
}
server {
  server_name mamad;
}

‍

BTW it's awesome project but need more examples for simples use cases.

[hairyhenderson]

Hi @mhf-ir,

First off, thanks for your kind words - and I agree more simple examples would help - perhaps something you could be willing to contribute?

To use a YAML file as a data source you'll need to use either the --datasource or --context flags, or -d/-c for short. Personally I prefer the --context/c approach when possible (though you can't use it if the data source needs to be read dynamically).

So, you could run a command like this: gomplate -c config=config.yaml -f input.tmpl

In your template file instead of using $hosts (which hadn't been defined yet), you'll need to reference the context:

{{ range $sn := .config.hosts }}
server {
  server_name {{ $sn }};
}
{{ end }}

And putting that all together:

$ gomplate -c config=config.yaml -f input.tmpl

server {
  server_name ali;
}

server {
  server_name mamad;
}

Let me know if that helps!