50 lines
881 B
Go
50 lines
881 B
Go
package loadbalance
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import (
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"fmt"
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"github.com/coredns/coredns/core/dnsserver"
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"github.com/coredns/coredns/plugin"
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clog "github.com/coredns/coredns/plugin/pkg/log"
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"github.com/mholt/caddy"
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)
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var log = clog.NewWithPlugin("loadbalance")
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func init() {
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caddy.RegisterPlugin("loadbalance", caddy.Plugin{
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ServerType: "dns",
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Action: setup,
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})
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}
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func setup(c *caddy.Controller) error {
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err := parse(c)
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if err != nil {
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return plugin.Error("loadbalance", err)
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}
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dnsserver.GetConfig(c).AddPlugin(func(next plugin.Handler) plugin.Handler {
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return RoundRobin{Next: next}
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})
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return nil
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}
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func parse(c *caddy.Controller) error {
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for c.Next() {
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args := c.RemainingArgs()
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switch len(args) {
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case 0:
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return nil
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case 1:
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if args[0] != "round_robin" {
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return fmt.Errorf("unknown policy: %s", args[0])
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}
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return nil
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}
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}
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return c.ArgErr()
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}
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