Remove NodeJS support; Introduce NGINX_STATIC_ROOT

Author: robertlemke

README.md

@@ -22,7 +22,12 @@ tbd.
 
 ## Hosting a static website
 
-tbd.
+Set the environment variable "BEACH_NGINX_MODE" to "Static" and
+optionally set the variable "NGINX_STATIC_ROOT" to the path leading to
+the root of your static site.
+
+The BEACH_NGINX_MODE variable follows legacy naming and will be renamed
+/ replaced by another concept in the future.
 
 ## Configuration
 
@@ -53,9 +58,11 @@ for possible values. The default value is `warn`.
 | NGINX_CACHE_BACKGROUND_UPDATE          | boolean | off                                   | If background updates should be enabled                                                             |
 | NGINX_CUSTOM_ERROR_PAGE_CODES          | string  | 500 501 502 503                       | FastCGI error codes which should redirect to the custom error page                                  |
 | NGINX_CUSTOM_ERROR_PAGE_TARGET         | string  |                                       | Upstream URL to use for custom FastCGI error pages                                                  |
+| NGINX_STATIC_ROOT                      | string  | /var/www/html                         | Document root path for when BEACH_NGINX_MODE is "Static"                                            |
 | BEACH_NGINX_CUSTOM_METRICS_ENABLE      | boolean | no                                    | If support for a custom metrics endpoint should be enabled                                          |
 | BEACH_NGINX_CUSTOM_METRICS_SOURCE_PATH | string  | /metrics                              | Path where metrics are located                                                                      |
 | BEACH_NGINX_CUSTOM_METRICS_TARGET_PORT | integer | 8082                                  | Port at which Nginx should listen to provide the metrics for scraping                               |
+| BEACH_NGINX_MODE                       | string  | Flow                                  | Either "Flow" or "Static"; this variable is going to be renamed in the future                       |
 | FLOW_HTTP_TRUSTED_PROXIES              | string  | 10.0.0.0/8                            | Nginx passes FLOW_HTTP_TRUSTED_PROXIES to the virtual host using the value of this variable         |
 
 ## Security aspects

root-files/opt/flownative/lib/nginx-legacy.sh

@@ -58,8 +58,7 @@ export BEACH_NGINX_CUSTOM_METRICS_TARGET_PORT=${BEACH_NGINX_CUSTOM_METRICS_TARGE
 
 export NGINX_CUSTOM_ERROR_PAGE_TARGET=${NGINX_CUSTOM_ERROR_PAGE_TARGET:-${BEACH_NGINX_CUSTOM_ERROR_PAGE_TARGET:-}}
 
-export NGINX_UPSTREAM_HOST=${NGINX_UPSTREAM_HOST:-127.0.0.1}
-export NGINX_UPSTREAM_PORT=${NGINX_UPSTREAM_PORT:-3000}
+export NGINX_STATIC_ROOT=${NGINX_STATIC_ROOT:-/var/www/html}
 EOF
 }
 
@@ -173,50 +172,19 @@ EOM
 EOM
 }
 
-# ---------------------------------------------------------------------------------------
-# nginx_legacy_initialize_nodejs() - Set up Nginx configuration for NodeJS
-#
-# @global NGINX_* The NGINX_* environment variables
-# @return void
-#
-nginx_legacy_initialize_nodejs() {
-    info "Nginx: Enabling site configuration for NodeJS ..."
-    cat >"${NGINX_CONF_PATH}/sites-enabled/nodejs.conf" <<-EOM
-upstream nodejs {
-    server ${NGINX_UPSTREAM_HOST}:${NGINX_UPSTREAM_PORT};
-    keepalive 8;
-}
-
-server {
-    listen *:8080 default_server;
-
-    add_header Via '\$hostname';
-
-    location / {
-    proxy_set_header X-Real-IP \$remote_addr;
-      proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
-      proxy_set_header Host \$http_host;
-
-      proxy_pass http://nodejs/;
-      proxy_redirect off;
-    }
-}
-EOM
-}
-
 # ---------------------------------------------------------------------------------------
 # nginx_legacy_initialize_static() - Set up Nginx configuration for a static site
 #
 # @global NGINX_* The NGINX_* environment variables
 # @return void
 #
 nginx_legacy_initialize_static() {
-    info "Nginx: Enabling default site configuration ..."
+    info "Nginx: Enabling static site configuration with root at ${NGINX_STATIC_ROOT} ..."
     cat >"${NGINX_CONF_PATH}/sites-enabled/default.conf" <<-EOM
 server {
     listen *:8080 default_server;
 
-    root /var/www/html;
+    root ${NGINX_STATIC_ROOT};
 
     # deny files starting with a dot (having "/." in the path)
     location ~ /\\. {
@@ -308,8 +276,6 @@ nginx_legacy_initialize() {
 
     if [ "$BEACH_NGINX_MODE" == "Flow" ]; then
         nginx_legacy_initialize_flow
-    elif [ "$BEACH_NGINX_MODE" == "NodeJS" ]; then
-        nginx_legacy_initialize_nodejs
     else
         nginx_legacy_initialize_static
     fi