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>
56 lines
1.1 KiB
Go
56 lines
1.1 KiB
Go
package metadata
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import (
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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("metadata", setup) }
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func setup(c *caddy.Controller) error {
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m, err := metadataParse(c)
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if err != nil {
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return err
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}
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dnsserver.GetConfig(c).AddPlugin(func(next plugin.Handler) plugin.Handler {
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m.Next = next
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return m
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})
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c.OnStartup(func() error {
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plugins := dnsserver.GetConfig(c).Handlers()
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for _, p := range plugins {
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if met, ok := p.(Provider); ok {
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m.Providers = append(m.Providers, met)
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}
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}
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return nil
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})
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return nil
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}
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func metadataParse(c *caddy.Controller) (*Metadata, error) {
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m := &Metadata{}
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c.Next()
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zones := c.RemainingArgs()
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if len(zones) != 0 {
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m.Zones = zones
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for i := 0; i < len(m.Zones); i++ {
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m.Zones[i] = plugin.Host(m.Zones[i]).Normalize()
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}
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} else {
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m.Zones = make([]string, len(c.ServerBlockKeys))
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for i := 0; i < len(c.ServerBlockKeys); i++ {
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m.Zones[i] = plugin.Host(c.ServerBlockKeys[i]).Normalize()
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}
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}
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if c.NextBlock() || c.Next() {
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return nil, plugin.Error("metadata", c.ArgErr())
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}
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return m, nil
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}
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