forked from coredns/coredns
/
setup.go
43 lines (35 loc) · 839 Bytes
/
setup.go
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package proxy
import (
"github.com/coredns/coredns/core/dnsserver"
"github.com/coredns/coredns/middleware"
"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 middleware.Error("proxy", err)
}
t := dnsserver.GetMiddleware(c, "trace")
P := &Proxy{Trace: t}
dnsserver.GetConfig(c).AddMiddleware(func(next middleware.Handler) middleware.Handler {
P.Next = next
P.Upstreams = &upstreams
return P
})
c.OnStartup(OnStartupMetrics)
for _, u := range upstreams {
c.OnStartup(func() error {
return u.Exchanger().OnStartup(P)
})
c.OnShutdown(func() error {
return u.Exchanger().OnShutdown(P)
})
}
return nil
}