* Upgrade antonmedv/expr to expr-lang/expr
The project has moved. This also upgrades from 1.15.5 to 1.16.9.
The expr project lacks a changelog but tests pass and the changes don't
seem to change it much - but there were a lot of changes.
Signed-off-by: Kevin Lyda <kevin@lyda.ie>
* Upgrade build image
In reviewing the build results I see the old build image was deprecated so
upgrading to something newer.
Signed-off-by: Kevin Lyda <kevin@lyda.ie>
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Signed-off-by: Kevin Lyda <kevin@lyda.ie>
* 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>