Mirrors/coredns
1
0
Fork 0
mirror of https://github.com/coredns/coredns.git synced 2025-11-01 02:33:14 -04:00
Code Issues Packages Projects Releases Wiki Activity

plugin/k8s_external: Resolve headless services (#5505)

Browse Source 
*add option for resolving headless Services without external IPs in k8s_external

Signed-off-by: Tomas Kohout <tomas.kohout1995@gmail.com>
This commit is contained in:
TomasKohout
2022-08-30 20:59:27 +02:00
committed by GitHub
parent b218b56063
commit 6782b7fb42
15 changed files with 491 additions and 81 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
plugin/k8s_external/external.go
View File

@@ -26,11 +26,11 @@ import (
type Externaler interface {
// External returns a slice of msg.Services that are looked up in the backend and match
// the request.
External(request.Request) ([]msg.Service, int)
External(request.Request, bool) ([]msg.Service, int)
// ExternalAddress should return a string slice of addresses for the nameserving endpoint.
ExternalAddress(state request.Request) []dns.RR
// ExternalServices returns all services in the given zone as a slice of msg.Service.
ExternalServices(zone string) []msg.Service
ExternalAddress(state request.Request, headless bool) []dns.RR
// ExternalServices returns all services in the given zone as a slice of msg.Service and if enabled, headless services as a map of services.
ExternalServices(zone string, headless bool) ([]msg.Service, map[string][]msg.Service)
// ExternalSerial gets the current serial.
ExternalSerial(string) uint32
}
@@ -40,16 +40,17 @@ type External struct {
Next plugin.Handler
Zones []string
hostmaster string
apex string
ttl uint32
hostmaster string
apex string
ttl uint32
headless bool
upstream *upstream.Upstream
externalFunc func(request.Request) ([]msg.Service, int)
externalAddrFunc func(request.Request) []dns.RR
externalFunc func(request.Request, bool) ([]msg.Service, int)
externalAddrFunc func(request.Request, bool) []dns.RR
externalSerialFunc func(string) uint32
externalServicesFunc func(string) []msg.Service
externalServicesFunc func(string, bool) ([]msg.Service, map[string][]msg.Service)
}
// New returns a new and initialized *External.
@@ -85,7 +86,7 @@ func (e *External) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Ms
}
}
svc, rcode := e.externalFunc(state)
svc, rcode := e.externalFunc(state, e.headless)
m := new(dns.Msg)
m.SetReply(state.Req)