splitter

splitter selects a middleware sub-chain by evaluating expressions against the request. The first rule that returns true wins.

server:
  http:
    middlewares:
      v1:
        service:
          loadbalancer:
            servers:
              - url: http://v1:3000
      v2:
        service:
          loadbalancer:
            servers:
              - url: http://v2:3000
      version_splitter:
        splitter:
          rules:
            - rule: Header(`X-Version`, `v2`)
              middlewares:
                - v2
            - rule: "true"
              middlewares:
                - v1

Expression Helpers

Helper	Description
Header(key, value)	Header equals value.
Path(pattern)	URL path matches a doublestar pattern.
PathPrefix(prefix)	URL path has prefix.
Method(method)	HTTP method equals value, case-insensitive.
Host(host)	Host equals value.
Query(key, value)	Query parameter equals value.

If no rule matches, Turna returns 404.