added route for quicker docker engine setup, just curl /setup | bash

nginx.conf

@@ -121,6 +121,28 @@ http {
              alias /ca/ca.crt;
         }
 
+        location /setup {
+            add_header "Content-type" "text/plain" always;
+            return 200 '
+mkdir -p /etc/systemd/system/docker.service.d
+cat << EOD > /etc/systemd/system/docker.service.d/http-proxy.conf
+[Service]
+Environment="HTTPS_PROXY=$scheme://$http_host/"
+EOD
+
+# Get the CA certificate from the proxy and make it a trusted root.
+curl $scheme://$http_host/ca.crt > /usr/share/ca-certificates/docker_registry_proxy.crt
+echo "docker_registry_proxy.crt" >> /etc/ca-certificates.conf
+update-ca-certificates --fresh
+
+# Reload systemd
+systemctl daemon-reload
+
+# Restart dockerd
+systemctl restart docker.service
+';
+        }
+
         # @TODO: add a dynamic root path that generates instructions for usage on docker clients
     }