feat(nginx): add nginx v1.18 image

nginx/1.18/alpine-develop/Dockerfile

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+FROM nginx:1.18-alpine
+
+MAINTAINER Damien Retzinger <damien@graycore.io>
+
+RUN apk update && apk add openssl
+RUN mkdir /etc/nginx/certs \
+  && echo -e "\n\n\n\n\n\n\n" | openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/nginx/certs/nginx.key -out /etc/nginx/certs/nginx.crt
+
+COPY ./conf/nginx.conf /etc/nginx/
+COPY ./conf/default.conf /etc/nginx/conf.d/
+
+EXPOSE 8443
+
+WORKDIR /var/www/html

nginx/1.18/alpine-develop/conf/default.conf

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+upstream fastcgi_backend {
+  server  magento2:9000;
+}
+
+server {
+  listen 8000;
+  return 301 https://$host$request_uri;
+}
+
+server {
+  listen 8443 ssl;
+
+  ssl_certificate /etc/nginx/certs/nginx.crt;
+  ssl_certificate_key /etc/nginx/certs/nginx.key;
+
+  set $MAGE_ROOT /var/www/html;
+
+  include /var/www/html/nginx[.]conf;
+}

nginx/1.18/alpine-develop/conf/nginx.conf

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+worker_processes 2;
+
+error_log /var/log/nginx/error.log debug;
+
+events {
+
+}
+
+http {
+  include /etc/nginx/mime.types;
+  default_type application/octet-stream;
+
+  log_format main
+    '$remote_addr - $remote_user [$time_local] "$request" '
+    '$status $body_bytes_sent "$http_referer" '
+    '"$http_user_agent" "$http_x_forwarded_for"';
+
+  access_log /var/log/nginx/access.log main;
+
+  sendfile on;
+
+  keepalive_timeout 60;
+
+  gzip on;
+
+  include /etc/nginx/conf.d/*.conf;
+}

nginx/1.18/alpine-develop/conf/prod.sample.conf

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+## This ngninx configuration should serve as an example for a production configuration of nginx.
+## Do note that this configuration only serves non-encrypted connections. This is intentional;
+## traffic within the DMZ should not need to be encrypted unless absolutely required.
+
+server {
+  listen 8000;
+
+  set $MAGE_ROOT /var/www/html;
+
+  include /var/www/html/nginx[.]conf;
+}
+
+# upstream fastcgi_backend {
+#     server   magento2:9001;
+# }