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package dnsserver
import (
"crypto/tls"
"github.com/coredns/coredns/plugin"
"github.com/mholt/caddy"
)
// Config configuration for a single server.
type Config struct {
// The zone of the site.
Zone string
// The hostname to bind listener to, defaults to the wildcard address
ListenHost string
// The port to listen on.
Port string
// Root points to a base directory we we find user defined "things".
// First consumer is the file plugin to looks for zone files in this place.
Root string
// Debug controls the panic/recover mechanism that is enabled by default.
Debug bool
// The transport we implement, normally just "dns" over TCP/UDP, but could be
// DNS-over-TLS or DNS-over-gRPC.
Transport string
// TLSConfig when listening for encrypted connections (gRPC, DNS-over-TLS).
TLSConfig *tls.Config
// Plugin stack.
Plugin []plugin.Plugin
// Compiled plugin stack.
pluginChain plugin.Handler
// Plugin interested in announcing that they exist, so other plugin can call methods
// on them should register themselves here. The name should be the name as return by the
// Handler's Name method.
registry map[string]plugin.Handler
}
// GetConfig gets the Config that corresponds to c.
// If none exist nil is returned.
func GetConfig(c *caddy.Controller) *Config {
ctx := c.Context().(*dnsContext)
if cfg, ok := ctx.keysToConfigs[c.Key]; ok {
return cfg
}
// we should only get here during tests because directive
// actions typically skip the server blocks where we make
// the configs.
ctx.saveConfig(c.Key, &Config{})
return GetConfig(c)
}
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