ability to set several users for basic auth using env vars (#1)

redundant .gitignore removed
nginx configs reduced to server block only
docker-compose added as example of usage

Author: jifeon

.gitignore

@@ -1,9 +1,9 @@
 FROM nginx:1.11.10
 
-COPY nginx.conf /etc/nginx/nginx.conf
-COPY bin/* /usr/local/bin/
+COPY default.conf /etc/nginx/conf.d/default.conf
+COPY bin/entry.sh /usr/local/bin/
 
 RUN chmod 744 /usr/local/bin/entry.sh && \
     chown root:root /usr/local/bin/entry.sh
 
-CMD ["/usr/local/bin/entry.sh"]
+CMD /usr/local/bin/entry.sh

Dockerfile

@@ -1,2 +1,3 @@
 # nginx-basic-auth
-A simple nginx template for challenging basic auth
+
+A simple nginx template for challenging basic auth. See docker-compose.yml for example of usage.

README.md

@@ -1,15 +1,19 @@
 #!/bin/bash
 
-# Providing defaults values for missing env variables
-[ "$DEFAULT_USER" = "" ]        && export DEFAULT_USER="admin"
-[ "$DEFAULT_PASSWORD" = "" ]    && export DEFAULT_PASSWORD="$(openssl rand -base64 12)"
+touch /htpasswd
 
-printf "$DEFAULT_USER:$(openssl passwd -crypt "${DEFAULT_PASSWORD}")\n" > /htpasswd
+i=0
+user=${USER_0}
+password=${PASSWORD_0}
 
-echo "=====[ Nginx Basic Auth ]============================================"
-echo "Generated default user"
-echo "Login: $DEFAULT_USER"
-echo "Password: $DEFAULT_PASSWORD"
-echo "=========================================================================="
+while [ "$user" ]; do
+    printf "$user:$(openssl passwd -crypt "$password")\n" >> /htpasswd
+
+    let "i += 1"
+    user_var_name="USER_$i"
+    user=${!user_var_name}
+    password_var_name="PASSWORD_$i"
+    password=${!password_var_name}
+done
 
 nginx -g "daemon off;"

bin/entry.sh

@@ -0,0 +1,15 @@
+server {
+    listen 80;
+
+    location / {
+        auth_basic "Are you authorized to be there?";
+        auth_basic_user_file /htpasswd;
+
+        try_files DUMMY @return200;
+    }
+
+    location @return200 {
+        add_header Content-Type text/plain;
+        return 200 'Welcome';
+    }
+}

default.conf

@@ -0,0 +1,9 @@
+nginx-basic-auth:
+  build: .
+  ports:
+  - 80:80
+  environment:
+    USER_0: user0
+    PASSWORD_0: test0
+    USER_1: user1
+    PASSWORD_1: test1