Refactoring wazuh/wazuh-nginx container

nginx/Dockerfile

@@ -1,7 +1,15 @@
 FROM nginx:latest
 
+ENV DEBIAN_FRONTEND noninteractive
+
 RUN apt-get update && apt-get install -y openssl apache2-utils
 
-COPY config/run.sh /run.sh
+COPY config/entrypoint.sh /entrypoint.sh
 
-RUN chmod 755 /run.sh
+RUN chmod 755 /entrypoint.sh
+
+RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+VOLUME ["/etc/nginx/conf.d"]
+
+ENTRYPOINT /entrypoint.sh

nginx/config/entrypoint.sh

@@ -0,0 +1,53 @@
+#!/bin/sh
+
+set -e
+
+# Generating certificates.
+if [ ! -d /etc/nginx/conf.d/ssl ]; then
+  echo "Generating SSL certificates"
+  mkdir -p /etc/nginx/conf.d/ssl/certs /etc/nginx/conf.d/ssl/private
+  openssl req -x509 -batch -nodes -days 365 -newkey rsa:2048 -keyout /etc/nginx/conf.d/ssl/private/kibana-access.key -out /etc/nginx/conf.d/ssl/certs/kibana-access.pem >/dev/null
+else
+  echo "SSL certificates already present"
+fi
+
+# Configuring default credentiales.
+if [ ! -f /etc/nginx/conf.d/kibana.htpasswd ]; then
+  echo "Setting Nginx credentials"
+  echo bar|htpasswd -i -c /etc/nginx/conf.d/kibana.htpasswd foo >/dev/null
+else
+  echo "Kibana credentials already configured"
+fi
+
+
+if [ "x${NGINX_PORT}" = "x" ]; then
+  NGINX_PORT=443
+fi
+
+if [ "x${KIBANA_HOST}" = "x" ]; then
+  KIBANA_HOST="kibana:5601"
+fi
+
+echo "Configuring NGINX"
+cat > /etc/nginx/conf.d/default.conf <<EOF
+server {
+    listen 80;
+    listen [::]:80;
+    return 301 https://\$host:${NGINX_PORT}\$request_uri;
+}
+
+server {
+    listen ${NGINX_PORT} default_server;
+    listen [::]:${NGINX_PORT};
+    ssl on;
+    ssl_certificate /etc/nginx/conf.d/ssl/certs/kibana-access.pem;
+    ssl_certificate_key /etc/nginx/conf.d/ssl/private/kibana-access.key;
+    location / {
+        auth_basic "Restricted";
+        auth_basic_user_file /etc/nginx/conf.d/kibana.htpasswd;
+        proxy_pass http://${KIBANA_HOST}/;
+    }
+}
+EOF
+
+nginx -g 'daemon off;'

nginx/config/run.sh

@@ -1,43 +0,0 @@
-#!/bin/bash
-
-set -e
-
-if [ ! -d /etc/pki/tls/certs ]; then
-  echo "Generating SSL certificates"
-  mkdir -p /etc/pki/tls/certs /etc/pki/tls/private
-  openssl req -x509 -batch -nodes -days 365 -newkey rsa:2048 -keyout /etc/pki/tls/private/kibana-access.key -out /etc/pki/tls/certs/kibana-access.pem >/dev/null
-else
-  echo "SSL certificates already present"
-fi
-
-if [ ! -f /etc/nginx/conf.d/kibana.htpasswd ]; then
-  echo "Setting Nginx credentials"
-  echo bar|htpasswd -i -c /etc/nginx/conf.d/kibana.htpasswd foo >/dev/null
-else
-  echo "Kibana credentials already configured"
-fi
-
-echo "Configuring NGINX"
-cat > /etc/nginx/conf.d/default.conf <<EOF
-server {
-    listen 80;
-    listen [::]:80;
-    return 301 https://\$host:$NGINX_PORT\$request_uri;
-}
-
-server {
-    listen $NGINX_PORT default_server;
-    listen [::]:$NGINX_PORT;
-    ssl on;
-    ssl_certificate /etc/pki/tls/certs/kibana-access.pem;
-    ssl_certificate_key /etc/pki/tls/private/kibana-access.key;
-    location / {
-        auth_basic "Restricted";
-        auth_basic_user_file /etc/nginx/conf.d/kibana.htpasswd;
-        proxy_pass http://kibana:5601/;
-    }
-}
-EOF
-
-echo "Starting Nginx"
-nginx -g 'daemon off; error_log /dev/stdout info;'