Caddyfile.json

{
  "apps": {
    "http": {
      "servers": {
        "coder": {
          "listen": [":80"],
          "routes": [
            {
              "handle": [
                {
                  "handler": "subroute",
                  "routes": [
                    {
                      "handle": [
                        {
                          "handler": "reverse_proxy",
                          "upstreams": [
                            {
                              "dial": "api:80"
                            }
                          ]
                        }
                      ],
                      "match": [
                        {
                          "path": ["/graphql"]
                        }
                      ]
                    },
                    {
                      "handle": [
                        {
                          "handler": "reverse_proxy",
                          "upstreams": [
                            {
                              "dial": "web-ui:81"
                            }
                          ]
                        }
                      ],
                      "match": [
                        {
                          "path": ["/"]
                        }
                      ]
                    }
                  ]
                }
              ]
            }
          ],
          "automatic_https": {
            "disable": true
          }
        }
      }
    }
  }
}