created first working version which fulfills all needs

Author: inventivejon

StartRegistry.sh

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+#!/bin/bash
+#docker-compose -f docker-compose.yml up -d
+docker-compose build
+docker stack deploy -c docker-compose.yml registry

StopRegistry.sh

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+#!/bin/bash
+#docker stack rm registry
+docker-compose -f docker-compose.yml down

docker-compose.yml

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+version: "3.7"
+services:
+  auth:
+    build: ./nginx
+    image: aussume_nginx_auth
+    ports:
+      - 5001:80
+    links:
+      - registry
+    environment:
+      USER: "<YourUserName>"
+      PASS: "<YourPassword>"
+    # depends_on:
+    #   - registry
+
+  registry:
+    image: registry:latest
+

nginx/Dockerfile

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+FROM nginx
+
+RUN apt-get update -y \
+    && apt-get install -y \
+        apache2-utils \
+    && rm -rf /var/lib/apt/lists/*
+
+ENV FORWARD_PORT=80
+
+WORKDIR /opt
+
+#RUN apk add --no-cache gettext
+
+COPY auth.conf auth.htpasswd launch.sh ./
+
+RUN chmod 0755 ./launch.sh
+
+CMD ["./launch.sh"]

nginx/auth.conf

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+server {
+ listen *:80 default_server;
+ return 444;
+}
+
+server {
+ listen *:80;
+ server_name 127.0.0.1;
+
+ location / {
+     satisfy any;
+     allow all;
+
+     proxy_pass                          http://registry:5000;
+     proxy_read_timeout                  900;
+ }
+}

nginx/auth.htpasswd

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+#!/bin/sh
+
+
+envsubst < auth.conf > /etc/nginx/conf.d/auth.conf
+envsubst < auth.htpasswd > /etc/nginx/auth.htpasswd
+
+htpasswd -c -b /etc/nginx/auth.htpasswd $USER $PASS
+
+echo basic-auth-pwd
+cat /etc/nginx/auth.htpasswd
+
+nginx -g "daemon off;"