coredns/plugin/pprof/setup.go
Miek Gieben 12b2ff9740
Use logging (#1718)
* update docs

* plugins: use plugin specific logging

Hooking up pkg/log also changed NewWithPlugin to just take a string
instead of a plugin.Handler as that is more flexible and for instance
the Root "plugin" doesn't implement it fully.

Same logging from the reload plugin:

.:1043
2018/04/22 08:56:37 [INFO] CoreDNS-1.1.1
2018/04/22 08:56:37 [INFO] linux/amd64, go1.10.1,
CoreDNS-1.1.1
linux/amd64, go1.10.1,
2018/04/22 08:56:37 [INFO] plugin/reload: Running configuration MD5 = ec4c9c55cd19759ea1c46b8c45742b06
2018/04/22 08:56:54 [INFO] Reloading
2018/04/22 08:56:54 [INFO] plugin/reload: Running configuration MD5 = 9e2bfdd85bdc9cceb740ba9c80f34c1a
2018/04/22 08:56:54 [INFO] Reloading complete

* update docs

* better doc
2018-04-22 21:40:33 +01:00

58 lines
923 B
Go

package pprof
import (
"net"
"sync"
"github.com/coredns/coredns/plugin"
clog "github.com/coredns/coredns/plugin/pkg/log"
"github.com/mholt/caddy"
)
var log = clog.NewWithPlugin("pprof")
const defaultAddr = "localhost:6053"
func init() {
caddy.RegisterPlugin("pprof", caddy.Plugin{
ServerType: "dns",
Action: setup,
})
}
func setup(c *caddy.Controller) error {
h := &handler{addr: defaultAddr}
i := 0
for c.Next() {
if i > 0 {
return plugin.Error("pprof", plugin.ErrOnce)
}
i++
args := c.RemainingArgs()
if len(args) == 1 {
h.addr = args[0]
_, _, e := net.SplitHostPort(h.addr)
if e != nil {
return e
}
}
if len(args) > 1 {
return plugin.Error("pprof", c.ArgErr())
}
if c.NextBlock() {
return plugin.Error("pprof", c.ArgErr())
}
}
pprofOnce.Do(func() {
c.OnStartup(h.Startup)
c.OnShutdown(h.Shutdown)
})
return nil
}
var pprofOnce sync.Once