Forward DNS requests into --internal networks #47821
Merged
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- What I did
Fixes #47822
#47538 prevents containers only connected to
--internal
networks from communicating with external DNS servers - it also inadvertently prevents the daemon's internal DNS server from forwarding requests within an internal network to a containerised DNS server.- How I did it
Relax the check, so that only requests that need to be forwarded from the host's network namespace are dropped.
External DNS servers remain unreachable from the internal network.
- How to verify it
New integration test.
- Description for the changelog