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004c5fca9d
Abstract the caddy call and make it simpler. See #3261 for some part of the discussion. Go from: ~~~ go func init() { caddy.RegisterPlugin("any", caddy.Plugin{ ServerType: "dns", Action: setup, }) } ~~~ To: ~~~ go func init() { plugin.Register("any", setup) } ~~~ This requires some external documents in coredns.io to be updated as well; the old way still works, so it's backwards compatible. Signed-off-by: Miek Gieben <miek@miek.nl>
47 lines
808 B
Go
47 lines
808 B
Go
package nsid
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import (
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"os"
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"strings"
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"github.com/coredns/coredns/core/dnsserver"
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"github.com/coredns/coredns/plugin"
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"github.com/caddyserver/caddy"
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)
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func init() { plugin.Register("nsid", setup) }
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func setup(c *caddy.Controller) error {
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nsid, err := nsidParse(c)
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if err != nil {
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return plugin.Error("nsid", err)
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}
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dnsserver.GetConfig(c).AddPlugin(func(next plugin.Handler) plugin.Handler {
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return Nsid{Next: next, Data: nsid}
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})
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return nil
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}
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func nsidParse(c *caddy.Controller) (string, error) {
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// Use hostname as the default
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nsid, err := os.Hostname()
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if err != nil {
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nsid = "localhost"
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}
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i := 0
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for c.Next() {
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if i > 0 {
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return nsid, plugin.ErrOnce
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}
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i++
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args := c.RemainingArgs()
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if len(args) > 0 {
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nsid = strings.Join(args, " ")
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}
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}
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return nsid, nil
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}
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