Updated examples

Signed-off-by: Kaloyan Nikolov <tzerber@gmail.com>

.examples/docker-compose/with-nginx-proxy/postgres/fpm/compose.yaml

@@ -1,6 +1,6 @@
-version: '3'
-
 services:
+  # Note: PostgreSQL is an external service. You can find more information about the configuration here:
+  # https://github.com/docker-library/docs/blob/master/postgres/README.md
   db:
     image: postgres:alpine
     restart: always
@@ -9,6 +9,8 @@ services:
     env_file:
       - db.env
 
+  # Note: Redis is an external service. You can find more information about the configuration here:
+  # https://redis.io/docs/latest/operate/oss_and_stack/install/install-stack/docker/#configuration
   redis:
     image: redis:alpine
     restart: always
@@ -29,12 +31,15 @@ services:
       - redis
       - proxy
 
+  # Note: Nginx is an external service. You can find more information about the configuration here:
+  # https://hub.docker.com/_/nginx/
   web:
-    build: ./web
+    image: nginx:alpine
     restart: always
     volumes:
+      - ./web/nginx.conf:/etc/nginx/nginx.conf:ro  # https://docs.nextcloud.com/server/latest/admin_manual/installation/nginx.html
+      # NOTE: The `volumes` included below should match those of the `app` container (unless you know what you're doing)
       - nextcloud:/var/www/html:z,ro
-      # NOTE: The `volumes` included here should match those of the `app` container (unless you know what you're doing)
     environment:
       - VIRTUAL_HOST=
       - LETSENCRYPT_HOST=
@@ -56,6 +61,9 @@ services:
       - db
       - redis
 
+  # Note: Nginx-proxy is an external service. You can find more information about the configuration here:
+  # Warning: Do not use :latest tags of nginx-proxy unless absolutely sure about the consequences.
+  # https://hub.docker.com/r/nginxproxy/nginx-proxy
   proxy:
     build: ./proxy
     restart: always
@@ -72,6 +80,8 @@ services:
     networks:
       - proxy-tier
 
+  # Note: Letsencrypt companion is an external service. You can find more information about the configuration here:
+  # https://github.com/nginx-proxy/acme-companion/tree/main/docs#readme
   letsencrypt-companion:
     image: nginxproxy/acme-companion
     restart: always
@@ -88,7 +98,7 @@ services:
     depends_on:
       - proxy
 
-# self signed
+# self signed, outdated
 #  omgwtfssl:
 #    image: paulczar/omgwtfssl
 #    restart: "no"

.examples/docker-compose/with-nginx-proxy/postgres/fpm/proxy/Dockerfile

@@ -1,3 +1,3 @@
-FROM nginxproxy/nginx-proxy:alpine
+FROM nginxproxy/nginx-proxy:1.7-alpine
 
 COPY uploadsize.conf /etc/nginx/conf.d/uploadsize.conf

.examples/docker-compose/with-nginx-proxy/postgres/fpm/web/Dockerfile

@@ -1,3 +0,0 @@
-FROM nginx:alpine
-
-COPY nginx.conf /etc/nginx/nginx.conf