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plugin/view: Advanced routing interface and new 'view' plugin (#5538)

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* introduce new interface "dnsserver.Viewer", that allows a plugin implementing it to decide if a query should be routed into its server block.
* add new plugin "view", that uses the new interface to enable a user to define expression based conditions that must be met for a query to be routed to its server block.

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
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Chris O'Haver 2022-09-08 14:56:27 -04:00 • committed by GitHub
parent 1f0a41a665
commit b56b080a7c
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GPG key ID: 4AEE18F83AFDEB23
36 changed files with 880 additions and 114 deletions
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6
plugin/cache/setup.go vendored
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@ -23,6 +23,12 @@ func setup(c *caddy.Controller) error {
if err != nil {
return plugin.Error("cache", err)
}
c.OnStartup(func() error {
ca.viewMetricLabel = dnsserver.GetConfig(c).ViewName
return nil
})
dnsserver.GetConfig(c).AddPlugin(func(next plugin.Handler) plugin.Handler {
ca.Next = next
return ca