Add service-specific locations
This guide shows how to extend a working submission from the Submit Templates Guide by adding server augments for new services with dedicated location augments.
Because you can’t retrieve previous submissions, you must include the full request with any updates.
If there aren’t existing augment templates that fit your needs, you will need to create and import them.
Because there isn’t a server augment yet, you need to create one. This template creates dedicated server blocks for each service.
http-server.tmpl
server {
listen {{ .listen_port }};
server_name{{ range .server_names }} {{ . }}{{ end }};
{{ augment_includes "http/server/location" . }}
}schema.yaml
$schema: "http://json-schema.org/draft-07/schema#"
type: object
properties:
listen_port:
type: integer
description: "Port for the server to listen on"
minimum: 1
maximum: 65535
default: 80
server_names:
type: array
description: "Array of domain names for this server"
items:
type: string
minItems: 1
required:
- listen_port
- server_names
additionalProperties: falseWhen Importing this template allows you to set up:
- name:
http-server - type:
augment - allowed_in_contexts:
["http"]
Create a location augment template to add location blocks within each server.
If you already have a "health-check" location augment from earlier steps, you can add it to the new servers.
location-proxy.tmpl
location {{ .path }} {
proxy_pass {{ .upstream_url }};
proxy_connect_timeout {{ .proxy_timeout }};
proxy_read_timeout {{ .proxy_read_timeout }};
}schema.yaml
$schema: "http://json-schema.org/draft-07/schema#"
type: object
properties:
path:
type: string
description: "Location path (for example, /api, /admin)"
pattern: "^/.*$"
upstream_url:
type: string
description: "Backend service URL"
pattern: "^https?://[^\\s]+$"
proxy_timeout:
type: string
description: "Proxy connection timeout"
pattern: "^\\d+[smhd]?$"
default: "30s"
proxy_read_timeout:
type: string
description: "Proxy read timeout"
pattern: "^\\d+[smhd]?$"
default: "60s"
required:
- path
- upstream_url
additionalProperties: falseWhen Importing this template allows you to:
- name:
location-proxy - type:
augment - allowed_in_contexts:
["http/server/location"]
Example API request:
{
"conf_path": "/etc/nginx/nginx.conf",
"base_template": {
"object_id": "<ID of your template object>",
"values": {
"backend_url": "http://example.com:8080"
}
},
"augments": [
{
"object_id": "<ID of your template object>",
"target_context": "http/server/location",
"values": {
"cors_allowed_origins": "https://app.example.com",
"cors_allowed_methods": "GET, POST, PUT, DELETE, OPTIONS"
}
},
{
"object_id": "<ID of your template object>",
"target_context": "http/server"
},
{
"object_id": "<ID of your template object>",
"target_context": "http",
"values": {
"listen_port": 80,
"server_names": ["admin.example.com"]
},
"child_augments": [
{
"object_id": "<ID of your template object>",
"target_context": "http/server/location",
"values": {
"path": "/admin",
"upstream_url": "http://admin-backend:8080"
}
},
{
"object_id": "<ID of your template object>",
"target_context": "http/server/location",
"values": {
"health_check_path": "/admin/health"
}
}
]
}
]
}- Existing augments remain: CORS headers and the health-check location still apply to the main server.
- New server augments Adds an extra server block.
- Service-specific routing: The new
admin.example.comserver name has its own location blocks and routing rules.
If the request succeeds, the response includes the following output and the rendered NGINX configuration:
{
"config": {
"aux": [],
"conf_path": "/etc/nginx/nginx.conf",
"config_version": "nuZ4+d1T159/0vVV9vKaajrEw7QXc6T3fAnxKcVkC6I=",
"configs": [
{
"files": [
{
"contents": "<base64_encoded_nginx_conf>",
"mtime": "0001-01-01T00:00:00Z",
"name": "nginx.conf",
"size": 483
}
],
"name": "/etc/nginx"
},
{
"files": [
{
"contents": "<base64_encoded_nginx_conf>",
"mtime": "0001-01-01T00:00:00Z",
"name": "cors-headers.tmpl.4aaf36d4a643.conf",
"size": 159
},
{
"contents": "<base64_encoded_nginx_conf>",
"mtime": "0001-01-01T00:00:00Z",
"name": "health-check.tmpl.78346de4dae4.conf",
"size": 109
},
{
"contents": "<base64_encoded_nginx_conf>",
"mtime": "0001-01-01T00:00:00Z",
"name": "http-server.tmpl.81761e94d463.conf",
"size": 145
},
{
"contents": "<base64_encoded_nginx_conf>",
"mtime": "0001-01-01T00:00:00Z",
"name": "location-proxy.tmpl.66ebf3e1dfd9.conf",
"size": 121
}
],
"name": "/etc/nginx/conf.d/augments"
}
]
},
"errors": null
}# configuration file /etc/nginx/nginx.conf:
user nginx;
worker_processes auto;
events {
worker_connections 1048;
}
http {
server {
listen 80;
server_name admin.example.com;
location /admin {
proxy_pass http://admin-backend:8080;
proxy_connect_timeout 30s;
proxy_read_timeout 60s;
}
}
server {
listen 80;
server_name _;
location /health {
access_log off;
return 200 "healthy\n";
add_header Content-Type text/plain;
}
location / {
proxy_pass http://example.com:8080;
add_header 'Access-Control-Allow-Origin' 'https://app.example.com' always;
add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS' always;
}
}
}Child augments let you nest one augment inside another, creating hierarchical configurations. This is often used when a parent augment creates a container (such as a server block) that requires specific sub-configurations (such as location blocks).
How child augments work
When an augment template includes an {{ augment_includes "context_path" . }} extension point, you can provide child augments that target that context path. The child augments render only within their parent augment’s output.
Key behaviors
- Child location augments apply only to their parent server.
- Different servers can have different location configurations.
- Each server runs independently with its own routing rules.
For details on designing templates with extension points, see the Template Authoring Guide.