Make proxy in nginx server optional

src/symbols/nginx/server.rs

@@ -49,7 +49,7 @@ pub struct NginxServer<'a, C> where C: Deref<Target=str> {
 use std::borrow::Cow;
 
 impl<'a> NginxServer<'a, String> {
-  pub fn new(socket_path: &'a str, domain: &'a str, static_path: &'a str, redir_domains: &[&'a str], command_runner: &'a CommandRunner) -> Self {
+  pub fn new(socket_path: Option<&'a str>, domain: &'a str, static_path: &'a str, redir_domains: &[&'a str], command_runner: &'a CommandRunner) -> Self {
     let file_path: Cow<str> = Cow::from(String::from("/etc/nginx/sites-enabled/") + domain);
 
     let redir_content = redir_domains.iter().map(|redir_domain| format!("server {{
@@ -60,7 +60,20 @@ impl<'a> NginxServer<'a, String> {
   }}
 
   ", redir_domain, domain)).fold(String::new(), |s, v| s + &v);
-      let content = String::from(redir_content) + &format!("server {{
+
+    let proxy_content = if let Some(socket) = socket_path {
+      format!("location / {{
+  try_files             $uri @proxy;
+}}
+
+location @proxy {{
+  include               fastcgi_params;
+  proxy_pass            http://unix:{}:;
+  proxy_redirect        off;
+}}", socket)
+    } else { "".to_string() };
+
+    let content = String::from(redir_content) + &format!("server {{
     listen                  80;
   #  listen                  443 ssl;
   #  ssl_certificate         /etc/ssl/.crt;
@@ -68,17 +81,8 @@ impl<'a> NginxServer<'a, String> {
     server_name             {};
 
     root                    {};
-
-  location / {{
-    try_files             $uri @proxy;
-  }}
-
-  location @proxy {{
-    include               fastcgi_params;
-    proxy_pass            http://unix:{}:;
-    proxy_redirect        off;
-  }}
-}}", domain, static_path, socket_path);
+    {}
+}}", domain, static_path, proxy_content);
     NginxServer {
       command_runner: command_runner,
       file: FileSymbol::new(file_path, content)