fix: Don't require resolv.conf when dns_servers is configured #2496

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Aranjedeath merged 2 commits from eleboucher/continuwuity:fix/dns-without-resolv-conf into main 2026-11-11 21:31:39 +00:00
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This pull request fixes: #2495

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fix: Don't require resolv.conf when dns_servers is configured
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10ef796101
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I was planning on dealing with this myself as I had a specific fix in mind, but I guess not.

I'll review this fully when I get home, but my initial impression is that this looks like an exceedingly big change compared to what is needed.

I was planning on dealing with this myself as I had a specific fix in mind, but I guess not. I'll review this fully when I get home, but my initial impression is that this looks like an exceedingly big change compared to what is needed.
silversys left a comment

note to other reviewers, don't merge this until I've gotten a look at it

note to other reviewers, don't merge this until I've gotten a look at it
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Contributor

@silversys wrote in #2496 (comment):

I was planning on dealing with this myself as I had a specific fix in mind, but I guess not.

I'll review this fully when I get home, but my initial impression is that this looks like an exceedingly big change compared to what is needed.

ah sorry it's just that Quad pinged me

@silversys wrote in https://forgejo.ellis.link/continuwuation/continuwuity/pulls/2496#issuecomment-39533: > I was planning on dealing with this myself as I had a specific fix in mind, but I guess not. > > I'll review this fully when I get home, but my initial impression is that this looks like an exceedingly big change compared to what is needed. ah sorry it's just that Quad pinged me
eleboucher force-pushed fix/dns-without-resolv-conf from 10ef796101
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2026-11-11 10:39:56 +00:00
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simplified it

simplified it
test: Skip system CA roots in state_at_incoming test services
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7670e78796
Henry-Hiles requested changes 2026-11-11 15:58:22 +00:00
Dismissed
@ -224,2 +224,3 @@
"rocksdb_write_buffer_capacity_mb": 4.0,
"allow_local_presence": false
"allow_local_presence": false,
"dns_servers": ["127.0.0.1"],
Member

could it be an empty array instead, or will that break things?

could it be an empty array instead, or will that break things?
Author
Contributor

An empty array is the default and means "use /etc/resolv.conf", so the test would fail again in the Nix sandbox where that file doesn't exist.

An empty array is the default and means "use /etc/resolv.conf", so the test would fail again in the Nix sandbox where that file doesn't exist.
Member

Hm, ok. It's just that this doesn't actually need to resolve DNS at all, right? It seems weird depending on 127.0.0.1, but if it works sure.

Hm, ok. It's just that this doesn't actually need to resolve DNS at all, right? It seems weird depending on 127.0.0.1, but if it works sure.
Author
Contributor

Right, it never resolves anything. It's only there because we always creates the DNS client, and with dns_servers empty that means reading /etc/resolv.conf, which doesn't exist in the Nix sandbox afaik.

Right, it never resolves anything. It's only there because we always creates the DNS client, and with dns_servers empty that means reading /etc/resolv.conf, which doesn't exist in the Nix sandbox afaik.
Member

yeah alright, don't worry about this then.

yeah alright, don't worry about this then.
Member

I can't really review until it actually fixes the Nix build, and for that the Resolvematrix change is also needed, right?

I can't really review until it actually fixes the Nix build, and for that the Resolvematrix change is also needed, right?
Henry-Hiles left a comment

Can confirm this fixes the nix issue when picked alongside #2503.

Can confirm this fixes the nix issue when picked alongside https://forgejo.ellis.link/continuwuation/continuwuity/pulls/2503.
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