Update Dockerfile

Dockerfile

@@ -5,21 +5,23 @@ FROM alpine:latest
 RUN apk add --no-cache dante-server
 
 # Create a simple configuration file for dante-server
-RUN echo "logoutput: stderr\n\
-internal: 0.0.0.0 port = 1080\n\
-external: 0.0.0.0\n\
-method: none\n\
-clientmethod: none\n\
-user.privileged: root\n\
-user.notprivileged: nobody\n\
-client pass {\n\
-    from: 0.0.0.0/0 to: 0.0.0.0/0\n\
-    log: connect disconnect error\n\
-}\n\
-socks pass {\n\
-    from: 0.0.0.0/0 to: 0.0.0.0/0\n\
-    log: connect disconnect error\n\
-}" > /etc/sockd.conf
+RUN { \
+    echo "logoutput: stderr"; \
+    echo "internal: 0.0.0.0 port = 1080"; \
+    echo "external: 0.0.0.0"; \
+    echo "method: none"; \
+    echo "clientmethod: none"; \
+    echo "user.privileged: root"; \
+    echo "user.notprivileged: nobody"; \
+    echo "client pass {"; \
+    echo "    from: 0.0.0.0/0 to: 0.0.0.0/0"; \
+    echo "    log: connect disconnect error"; \
+    echo "}"; \
+    echo "socks pass {"; \
+    echo "    from: 0.0.0.0/0 to: 0.0.0.0/0"; \
+    echo "    log: connect disconnect error"; \
+    echo "}"; \
+} > /etc/sockd.conf
 
 # Expose the SOCKS proxy port
 EXPOSE 1080