Revert "Support parametrization of nginx port (opea-project#1456)" (opea-project#1473)

This reverts commit eb35fb8.

Author: ZePan110

comps/third_parties/nginx/deployment/docker_compose/start-nginx.sh

@@ -2,5 +2,5 @@
 # SPDX-License-Identifier: Apache-2.0
 
 #!/bin/sh
-envsubst '${NGINX_PORT} ${FRONTEND_SERVICE_IP} ${FRONTEND_SERVICE_PORT} ${BACKEND_SERVICE_NAME} ${BACKEND_SERVICE_IP} ${BACKEND_SERVICE_PORT} ${DATAPREP_SERVICE_IP} ${DATAPREP_SERVICE_PORT}' < /etc/nginx/nginx.conf.template > /etc/nginx/conf.d/default.conf
+envsubst '${FRONTEND_SERVICE_IP} ${FRONTEND_SERVICE_PORT} ${BACKEND_SERVICE_NAME} ${BACKEND_SERVICE_IP} ${BACKEND_SERVICE_PORT} ${DATAPREP_SERVICE_IP} ${DATAPREP_SERVICE_PORT}' < /etc/nginx/nginx.conf.template > /etc/nginx/conf.d/default.conf
 nginx -g 'daemon off;'

comps/third_parties/nginx/src/Dockerfile

@@ -2,14 +2,12 @@
 # SPDX-License-Identifier: Apache-2.0
 
 
-FROM nginxinc/nginx-unprivileged
-USER root
-RUN apt-get update && apt-get install -y gettext && apt-get clean
-#RUN apk add --no-cache gettext
+FROM nginx:alpine
+
+RUN apk add --no-cache gettext
 
 COPY comps/third_parties/nginx/src/nginx.conf.template /etc/nginx/nginx.conf.template
 
-ENV NGINX_PORT=8080
 ENV FRONTEND_SERVICE_IP=localhost
 ENV FRONTEND_SERVICE_PORT=5173
 ENV BACKEND_SERVICE_NAME=chatqna

comps/third_parties/nginx/src/nginx.conf.template

@@ -3,8 +3,8 @@
 
 
 server {
-    listen       ${NGINX_PORT};
-    listen  [::]:${NGINX_PORT};
+    listen       80;
+    listen  [::]:80;
 
     location /home {
         alias  /usr/share/nginx/html/index.html;

tests/third_parties/test_third_parties_nginx.sh

@@ -23,7 +23,7 @@ function start_service() {
     export NGINX_PORT=80
 
     # Start Docker Containers
-    docker run -d --name test-comps-nginx-server -p ${NGINX_PORT}:8080 -e NGINX_PORT=8080 opea/nginx:comps
+    docker run -d --name test-comps-nginx-server -p 80:80 opea/nginx:comps
 
     sleep 5s
 }