d8714e64e4
* Rename middleware to plugin first pass; mostly used 'sed', few spots where I manually changed text. This still builds a coredns binary. * fmt error * Rename AddMiddleware to AddPlugin * Readd AddMiddleware to remain backwards compat
46 lines
896 B
Go
46 lines
896 B
Go
package proxy
|
|
|
|
import (
|
|
"github.com/coredns/coredns/core/dnsserver"
|
|
"github.com/coredns/coredns/plugin"
|
|
|
|
"github.com/mholt/caddy"
|
|
)
|
|
|
|
func init() {
|
|
caddy.RegisterPlugin("proxy", caddy.Plugin{
|
|
ServerType: "dns",
|
|
Action: setup,
|
|
})
|
|
}
|
|
|
|
func setup(c *caddy.Controller) error {
|
|
upstreams, err := NewStaticUpstreams(&c.Dispenser)
|
|
if err != nil {
|
|
return plugin.Error("proxy", err)
|
|
}
|
|
|
|
t := dnsserver.GetConfig(c).Handler("trace")
|
|
P := &Proxy{Trace: t}
|
|
dnsserver.GetConfig(c).AddPlugin(func(next plugin.Handler) plugin.Handler {
|
|
P.Next = next
|
|
P.Upstreams = &upstreams
|
|
return P
|
|
})
|
|
|
|
c.OnStartup(OnStartupMetrics)
|
|
|
|
for i := range upstreams {
|
|
u := upstreams[i]
|
|
c.OnStartup(func() error {
|
|
return u.Exchanger().OnStartup(P)
|
|
})
|
|
c.OnShutdown(func() error {
|
|
return u.Exchanger().OnShutdown(P)
|
|
})
|
|
// Register shutdown handlers.
|
|
c.OnShutdown(u.Stop)
|
|
}
|
|
|
|
return nil
|
|
}
|