coredns/middleware/autopath
Miek Gieben 7f46df6d27 tests: add SortAndCheck helper (#926)
There was quite some code duplication in a lot of tests to check if
an answer was considered Ok. Created a test.SortAndCheck helper function
that takes care of this.
2017-08-16 15:30:58 +01:00
..
autopath.go go lint cleanup (#904) 2017-08-11 19:48:11 -07:00
autopath_test.go tests: add SortAndCheck helper (#926) 2017-08-16 15:30:58 +01:00
cname.go WIP: autopath as middleware (#859) 2017-08-09 03:13:38 -07:00
nonwriter.go WIP: autopath as middleware (#859) 2017-08-09 03:13:38 -07:00
README.md WIP: autopath as middleware (#859) 2017-08-09 03:13:38 -07:00
setup.go core: replace GetMiddleware (#885) 2017-08-10 21:31:36 +01:00
setup_test.go cidr everywhere: check all middleware (#915) 2017-08-13 18:16:25 +01:00

autopath

The autopath middleware allows CoreDNS to perform server side search path completion. If it sees a query that matches the first element of the configured search path, autopath will follow the chain of search path elements and returns the first reply that is not NXDOMAIN. On any failures the original reply is returned.

Because autopath returns a reply for a name that wasn't the original question it will add a CNAME that points from the original name (with the search path element in it) to the name of this answer.

Syntax

autopath [ZONE..] RESOLV-CONF
  • ZONES zones autopath should be authoritative for.
  • RESOLV-CONF points to a resolv.conf like file or uses a special syntax to point to another middleware. For instance @kubernetes, will call out to the kubernetes middleware (for each query) to retrieve the search list it should use.

Currently the following set of middleware has implemented autopath:

  • kubernetes

Examples

autopath my-resolv.conf

Use my-resolv.conf as the file to get the search path from. This file only needs so have one line: search domain1 domain2 ...

autopath @kubernetes

Use the search path dynamically retrieved from the kubernetes middleware.