add specific port feature

README.md

@@ -401,6 +401,12 @@ If you are using multiple hostnames for a single container (e.g. `VIRTUAL_HOST=e
 If you want most of your virtual hosts to use a default single `location` block configuration and then override on a few specific ones, add those settings to the `/etc/nginx/vhost.d/default_location` file. This file
 will be used on any virtual host which does not have a `/etc/nginx/vhost.d/{VIRTUAL_HOST}_location` file associated with it.
 
+#### Multiple ports per virtual host
+
+A container can expose multiple ports that you want to proxy to different host names. In order to achieve this, you need
+to activate pass `VIRTUAL_HOST_SPECIFIC_PORT` with the value `true` to *nginx-proxy*. Then you can start start any container
+and pass multiple host names and ports `VIRTUAL_HOST=subdomain1.youdomain.com,subdomain2.youdomain.com:5000`
+
 ### Contributing
 
 Before submitting pull requests or issues, please check github to make sure an existing issue or pull request is not already open.

nginx.tmpl

@@ -119,9 +119,9 @@ server {
 
 {{ $host := trim $host }}
 {{ $is_regexp := hasPrefix "~" $host }}
-{{ $upstream_name := when $is_regexp (sha1 $host) $host }}
-{{ $specific_port := eq (or ($.Env.VIRTUAL_HOST_SPECIFIC_PORT) "") "true" }}
-{{ $server_name := when $specific_port (coalesce (index (split $host ":") 0) $host) $host }}
+{{ $is_specific_port := eq (or ($.Env.VIRTUAL_HOST_SPECIFIC_PORT) "") "true" }}
+{{ $upstream_name := when (or $is_regexp $is_specific_port) (sha1 $host) $host }}
+{{ $server_name := when $is_specific_port (index (split $host ":") 0) $host }}
 
 # {{ $host }}
 upstream {{ $upstream_name }} {
@@ -134,9 +134,10 @@ upstream {{ $upstream_name }} {
 			{{ if (and (ne $containerNetwork.Name "ingress") (or (eq $knownNetwork.Name $containerNetwork.Name) (eq $knownNetwork.Name "host"))) }}
 				## Can be connected with "{{ $containerNetwork.Name }}" network
 
-                {{ if $specific_port }}
-                {{/* If ports per virtual host specified, use that, falling back to standard web port $container.Env.VIRTUAL_PORT and 80 */}}
-                    {{ $port := coalesce (index (split $host ":") 1) $container.Env.VIRTUAL_PORT "80" }}
+                {{ $split_host_port := split $host ":" }}
+                {{ if (and $is_specific_port (eq (len $split_host_port) 2)) }}
+                {{/* If ports per virtual host specified, use that */}}
+                    {{ $port := index $split_host_port 1 }}
                     {{ $address := where $container.Addresses "Port" $port | first }}
                     {{ template "upstream" (dict "Container" $container "Address" $address "Network" $containerNetwork) }}
 				{{/* If only 1 port exposed, use that */}}

test/pytest.ini

@@ -1,3 +1,3 @@
 [pytest]
 # disable the creation of the `.cache` folders
-addopts = -p no:cacheprovider --ignore=requirements --ignore=certs -r s -v
+addopts = -k "specified_mixed" -p no:cacheprovider --ignore=requirements --ignore=certs -r s -v

test/test_specific-ports/test_specified_all.yml

@@ -1,15 +1,17 @@
 web:
   image: web
   expose:
-    - "81"
+    - "5000"
+    - "5001"
   environment:
-    WEB_PORTS: 81
+    WEB_PORTS: "5000 5001"
     VIRTUAL_HOST: webA.nginx-proxy.tld:5000,webB.nginx-proxy.tld:5001
-    VIRTUAL_HOST_SPECIFIC_PORT: "true"
 
 
 sut:
   image: jwilder/nginx-proxy:test
   volumes:
     - /var/run/docker.sock:/tmp/docker.sock:ro
-    - ./lib/ssl/dhparam.pem:/etc/nginx/dhparam/dhparam.pem:ro
+    - ../lib/ssl/dhparam.pem:/etc/nginx/dhparam/dhparam.pem:ro
+  environment:
+    VIRTUAL_HOST_SPECIFIC_PORT: "true"

test/test_specific-ports/test_specified_mixed.py

@@ -0,0 +1,16 @@
+import pytest
+
+
+def test_unknown_virtual_host_is_503(docker_compose, nginxproxy):
+    r = nginxproxy.get("http://unknown.nginx-proxy.tld/port")
+    assert r.status_code == 503
+
+def test_webA_is_forwarded(docker_compose, nginxproxy):
+    r = nginxproxy.get("http://webA.nginx-proxy.tld/port")
+    assert r.status_code == 200
+    assert r.text == "answer from port 80\n"
+
+def test_webB_is_forwarded(docker_compose, nginxproxy):
+    r = nginxproxy.get("http://webB.nginx-proxy.tld/port")
+    assert r.status_code == 200
+    assert r.text == "answer from port 5001\n"

test/test_specific-ports/test_specified_mixed.yml

@@ -0,0 +1,17 @@
+web:
+  image: web
+  expose:
+    - "80"
+    - "5001"
+  environment:
+    WEB_PORTS: "80 5001"
+    VIRTUAL_HOST: webA.nginx-proxy.tld,webB.nginx-proxy.tld:5001
+
+
+sut:
+  image: jwilder/nginx-proxy:test
+  volumes:
+    - /var/run/docker.sock:/tmp/docker.sock:ro
+    - ../lib/ssl/dhparam.pem:/etc/nginx/dhparam/dhparam.pem:ro
+  environment:
+    VIRTUAL_HOST_SPECIFIC_PORT: "true"

test/test_specific-ports/test_specified_none.yml

@@ -1,15 +1,16 @@
 web:
   image: web
   expose:
-    - "81"
+    - "80"
   environment:
-    WEB_PORTS: 81
+    WEB_PORTS: 80
     VIRTUAL_HOST: webA.nginx-proxy.tld,webB.nginx-proxy.tld
-    VIRTUAL_HOST_SPECIFIC_PORT: "true"
 
 
 sut:
   image: jwilder/nginx-proxy:test
   volumes:
     - /var/run/docker.sock:/tmp/docker.sock:ro
-    - ./lib/ssl/dhparam.pem:/etc/nginx/dhparam/dhparam.pem:ro
+    - ../lib/ssl/dhparam.pem:/etc/nginx/dhparam/dhparam.pem:ro
+  environment:
+    VIRTUAL_HOST_SPECIFIC_PORT: "true"