Using multiple backends does not work.

[freality]

varnish/services/varnish/builder.js

Line 56 in 1f73f51

VARNISH_BACKEND_HOST: options.backends.join(' '),

The wodby/varnish expects a valid hostname for its VARNISH_BACKEND_HOST env variable (used here: https://github.com/wodby/varnish/blob/0e0ad4cea019dda531dab37325daf6be36c91763/templates/includes/backend.vcl.tmpl#L4). But the builder code concatenates the configured backends into a space delimited string. This results in a non-valid hostname.

I need to be able to address multiple varnish backends in my project. But looking at thewodby/varnish varnish config, it appears it is not possible in .lando.yml service config alone.

Although, It'd be great if the entire service didn't break when multiple backends are defined. As Lando also uses the backends configuration in its depends_on conf.

If only using the first defined backend is a serviceable solution? I'd be happy to submit the fix.