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Monitor DNS_OPTIONS for changes #239

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@bhouse-nexthop bhouse-nexthop commented Apr 11, 2025

A new DNS_OPTIONS table has been added to allow for more than basic nameserver configuration. We need to monitor this table for changes like we do DNS_NAMESERVER and simply reload the DNS configuration service when changes are detected.

Depends on sonic-net/sonic-buildimage#22310

Fixes sonic-net/sonic-buildimage#22311

NOTE: There are no tests in sonic-host-services for DNS as all it is doing is restarting a daemon which regenerates the /etc/resolv.conf. This daemon is in sonic-buildimage.

A new DNS_OPTIONS table has been added to allow for more
than basic nameserver configuration.  We need to monitor this
table for changes like we do DNS_NAMESERVER and simply reload
the DNS configuration service when changes are detected.

Signed-off-by: Brad House <[email protected]>
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Enhancement: Additional DNS configuration options
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