add forward path prefix to prefix services in a sub path.

backend/migrations/20230811144605_forward_path.js

@@ -0,0 +1,42 @@
+const migrate_name = 'identifier_for_migrate';
+const logger       = require('../logger').migrate;
+
+/**
+ * Migrate
+ *
+ * @see http://knexjs.org/#Schema
+ *
+ * @param {Object} knex
+ * @param {Promise} Promise
+ * @returns {Promise}
+ */
+exports.up = function (knex, Promise) {
+
+	logger.info('[' + migrate_name + '] Migrating Up...');
+
+
+	return knex.schema.alterTable('proxy_host',function(table){
+		table.string("forward_path_prefix").notNull().defaultTo("");
+	})
+	.then(function() {
+		logger.info('[' + migrate_name + '] Migrating Up Complete');
+	})
+};
+
+/**
+ * Undo Migrate
+ *
+ * @param {Object} knex
+ * @param {Promise} Promise
+ * @returns {Promise}
+ */
+exports.down = function (knex, Promise) {
+	logger.info('[' + migrate_name + '] Migrating Down...');
+
+	return knex.schema.alterTable("proxy_host", function(table){
+		table.dropColumn('forward_path_prefix');
+	})
+	.then(() => {
+		logger.info('[' + migrate_name + '] Migrating Down Complete');
+	});
+};

backend/schema/endpoints/proxy-hosts.json

@@ -32,6 +32,11 @@
       "minimum": 1,
       "maximum": 65535
     },
+    "forward_path_prefix":{
+      "type":"string",
+      "pattern": "^(\/[^/]+)*$",
+      "maxLength":255
+    },
     "certificate_id": {
       "$ref": "../definitions.json#/definitions/certificate_id"
     },
@@ -102,6 +107,10 @@
           "forward_path": {
             "type": "string"
           },
+          "forward_path_prefix":{
+            "type":"string",
+            "pattern": "^(\/[^/]+)*$"
+          },
           "advanced_config": {
             "type": "string"
           }
@@ -221,6 +230,9 @@
           "forward_port": {
             "$ref": "#/definitions/forward_port"
           },
+          "forward_path_prefix":{
+            "$ref": "#/definitions/forward_path_prefix"
+          },
           "certificate_id": {
             "$ref": "#/definitions/certificate_id"
           },
@@ -294,6 +306,9 @@
           "forward_port": {
             "$ref": "#/definitions/forward_port"
           },
+          "forward_path_prefix":{
+            "$ref": "#/definitions/forward_path_prefix"
+          },
           "certificate_id": {
             "$ref": "#/definitions/certificate_id"
           },

backend/templates/_location.conf

@@ -4,7 +4,7 @@
     proxy_set_header X-Forwarded-Proto  $scheme;
     proxy_set_header X-Forwarded-For    $remote_addr;
     proxy_set_header X-Real-IP		$remote_addr;
-    proxy_pass       {{ forward_scheme }}://{{ forward_host }}:{{ forward_port }}{{ forward_path }};
+    proxy_pass       {{ forward_scheme }}://{{ forward_host }}:{{ forward_port }}{{ forward_path_prefix }}{{ forward_path }};
 
     {% include "_access.conf" %}
     {% include "_assets.conf" %}

backend/templates/proxy_host.conf

@@ -5,6 +5,7 @@ server {
   set $forward_scheme {{ forward_scheme }};
   set $server         "{{ forward_host }}";
   set $port           {{ forward_port }};
+  set $path_prefix    "{{ forward_path_prefix }}";
 
 {% include "_listen.conf" %}
 {% include "_certificates.conf" %}