d3f2d4a291
* core: remove HostAddresses() config.HostAddresses() is a weird function that gathers some data from the server and returns a string. It is *only* used the trace plugin, to figure out what server starts the trace. Looks to be better to fit in the with metrics.WithServer label on the trace itself to show which server handled the trace. Remove HostAddresses() and cleanup trace a small bit.:w * lint
73 lines
2.1 KiB
Go
73 lines
2.1 KiB
Go
package dnsserver
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import (
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"crypto/tls"
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"fmt"
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"github.com/coredns/coredns/plugin"
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"github.com/mholt/caddy"
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)
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// Config configuration for a single server.
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type Config struct {
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// The zone of the site.
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Zone string
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// one or several hostnames to bind the server to.
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// defaults to a single empty string that denote the wildcard address
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ListenHosts []string
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// The port to listen on.
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Port string
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// Root points to a base directory we we find user defined "things".
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// First consumer is the file plugin to looks for zone files in this place.
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Root string
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// Debug controls the panic/recover mechanism that is enabled by default.
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Debug bool
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// The transport we implement, normally just "dns" over TCP/UDP, but could be
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// DNS-over-TLS or DNS-over-gRPC.
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Transport string
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// If this function is not nil it will be used to further filter access
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// to this handler. The primary use is to limit access to a reverse zone
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// on a non-octet boundary, i.e. /17
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FilterFunc func(string) bool
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// TLSConfig when listening for encrypted connections (gRPC, DNS-over-TLS).
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TLSConfig *tls.Config
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// Plugin stack.
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Plugin []plugin.Plugin
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// Compiled plugin stack.
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pluginChain plugin.Handler
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// Plugin interested in announcing that they exist, so other plugin can call methods
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// on them should register themselves here. The name should be the name as return by the
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// Handler's Name method.
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registry map[string]plugin.Handler
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}
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// keyForConfig build a key for identifying the configs during setup time
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func keyForConfig(blocIndex int, blocKeyIndex int) string {
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return fmt.Sprintf("%d:%d", blocIndex, blocKeyIndex)
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}
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// GetConfig gets the Config that corresponds to c.
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// If none exist nil is returned.
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func GetConfig(c *caddy.Controller) *Config {
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ctx := c.Context().(*dnsContext)
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key := keyForConfig(c.ServerBlockIndex, c.ServerBlockKeyIndex)
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if cfg, ok := ctx.keysToConfigs[key]; ok {
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return cfg
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}
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// we should only get here during tests because directive
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// actions typically skip the server blocks where we make
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// the configs.
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ctx.saveConfig(key, &Config{ListenHosts: []string{""}})
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return GetConfig(c)
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}
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