Add nginx service as second docker-compose stack (#503)

* add nginx service to docker-compose, proxy pgstac and sqlalchemy apps

* Update docker-compose.yml

Co-authored-by: Christian Wygoda <103508637+c-wygoda@users.noreply.github.com>

* feat: add nginx proxy in own docker-compose file

Includes a Makefile rule to run it, and some documentation in README.md. Also
adds a markdownlint silencer and one or two touchups to the whitespace.

* Update changelog

---------

Co-authored-by: Christian Wygoda <103508637+c-wygoda@users.noreply.github.com>
Co-authored-by: Pete Gadomski <pete.gadomski@gmail.com>
Co-authored-by: Nathan Zimmerman <npzimmerman@gmail.com>

CHANGES.md

@@ -4,6 +4,7 @@
 
 ### Added
 
+* Nginx service as second docker-compose stack to demonstrate proxy ([#503](https://github.com/stac-utils/stac-fastapi/pull/503))
 * Validation checks in CI using [stac-api-validator](github.com/stac-utils/stac-api-validator) ([#508](https://github.com/stac-utils/stac-fastapi/pull/508))
 * Required links to the sqlalchemy ItemCollection endpoint ([#508](https://github.com/stac-utils/stac-fastapi/pull/508))
 * Publication of docker images to GHCR ([#525](https://github.com/stac-utils/stac-fastapi/pull/525))

Makefile

@@ -30,6 +30,10 @@ docker-run-sqlalchemy: image
 docker-run-pgstac: image
 	$(run_pgstac)
 
+.PHONY: docker-run-nginx-proxy
+docker-run-nginx-proxy:
+	docker-compose -f docker-compose.yml -f docker-compose.nginx.yml up
+
 .PHONY: docker-shell-sqlalchemy
 docker-shell-sqlalchemy:
 	$(run_sqlalchemy) /bin/bash

README.md

@@ -1,3 +1,5 @@
+<!-- markdownlint-disable MD033 MD041 -->
+
 <p align="center">
   <img src="https://github.com/radiantearth/stac-site/raw/master/images/logo/stac-030-long.png" width=400>
   <p align="center">FastAPI implemention of the STAC API spec.</p>
@@ -101,7 +103,23 @@ The application will be started on <http://localhost:8080>.
 By default, the apps are run with uvicorn hot-reloading enabled. This can be turned off by changing the value
 of the `RELOAD` env var in docker-compose.yml to `false`.
 
-#### Note to Docker for Windows users
+### nginx proxy
+
+This repo includes an example nginx proxy service.
+To start:
+
+```shell
+make docker-run-nginx-proxy
+```
+
+The proxy will be started on <http://localhost>, with the pgstac app available at <http://localhost/api/v1/pgstac/> and the sqlalchemy app at <http://localhost/api/v1/sqlalchemy/>.
+If you need to customize the proxy port, use the `STAC_FASTAPI_NGINX_PORT` environment variable:
+
+```shell
+STAC_FASTAPI_NGINX_PORT=7822 make docker-run-nginx-proxy
+```
+
+### Note to Docker for Windows users
 
 You'll need to enable experimental features on Docker for Windows in order to run the docker-compose,
 due to the "--platform" flag that is required to allow the project to run on some Apple architectures.

docker-compose.nginx.yml

@@ -0,0 +1,18 @@
+version: '3'
+services:
+  nginx:
+    image: nginx
+    ports:
+      - ${STAC_FASTAPI_NGINX_PORT:-80}:80
+    volumes:
+      - ./nginx.conf:/etc/nginx/nginx.conf
+    depends_on:
+      - app-pgstac
+      - app-sqlalchemy
+    command: [ "nginx-debug", "-g", "daemon off;" ]
+  app-pgstac:
+    environment:
+      - UVICORN_ROOT_PATH=/api/v1/pgstac
+  app-sqlalchemy:
+    environment:
+      - UVICORN_ROOT_PATH=/api/v1/sqlalchemy

nginx.conf

@@ -0,0 +1,29 @@
+events {}
+
+http {
+    server {
+        listen   80;
+
+        location /api/v1/pgstac {
+            rewrite ^/api/v1/pgstac(.*)$ $1 break;
+            proxy_pass http://app-pgstac:8082;
+            proxy_set_header HOST $host;
+            proxy_set_header Referer $http_referer;
+            proxy_set_header X-Forwarded-For $remote_addr;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
+        location /api/v1/sqlalchemy {
+            rewrite ^/api/v1/sqlalchemy(.*)$ $1 break;
+            proxy_pass http://app-sqlalchemy:8081;
+            proxy_set_header HOST $host;
+            proxy_set_header Referer $http_referer;
+            proxy_set_header X-Forwarded-For $remote_addr;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
+        location / {
+            proxy_redirect off;
+        }
+    }
+}

stac_fastapi/pgstac/stac_fastapi/pgstac/app.py

@@ -88,6 +88,7 @@ def run():
             port=settings.app_port,
             log_level="info",
             reload=settings.reload,
+            root_path=os.getenv("UVICORN_ROOT_PATH", ""),
         )
     except ImportError:
         raise RuntimeError("Uvicorn must be installed in order to use command")

stac_fastapi/sqlalchemy/stac_fastapi/sqlalchemy/app.py

@@ -1,4 +1,6 @@
 """FastAPI application."""
+import os
+
 from stac_fastapi.api.app import StacApi
 from stac_fastapi.api.models import create_get_request_model, create_post_request_model
 from stac_fastapi.extensions.core import (
@@ -55,6 +57,7 @@ def run():
             port=settings.app_port,
             log_level="info",
             reload=settings.reload,
+            root_path=os.getenv("UVICORN_ROOT_PATH", ""),
         )
     except ImportError:
         raise RuntimeError("Uvicorn must be installed in order to use command")