Add --proxy-domain support

root/etc/services.d/code-server/run

@@ -1,11 +1,21 @@
 #!/usr/bin/with-contenv bash
 
+# Added by codeserver-golang
+export PATH=$PATH:/usr/local/go/bin
+
 if [ -n "${PASSWORD}" ]; then
   AUTH="password"
 else
   AUTH="none"
   echo "starting with no password"
 fi
+  code-server:
+
+if [ -z ${PROXY_DOMAIN+x} ]; then
+  PROXY_DOMAIN_ARG=""
+else 
+  PROXY_DOMAIN_ARG="--proxy-domain=${PROXY_DOMAIN}"
+fi
 
 exec \
         s6-setuidgid abc \
@@ -16,4 +26,5 @@ exec \
                         --disable-telemetry \
                         --disable-updates \
                         --auth "${AUTH}" \
+                        "${PROXY_DOMAIN_ARG}" \
                         /config/workspace