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nix: give the gateway, resolver and bridge their own enable

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`services.hyperhive.gateway.enable`, `gateway.dns.enable` and
`network.enable` replace the `hyperhive.enable` gate on all three. Each
defaults to false; the modules that need one assert it with `mkDefault
true` from inside the guard their own deployment already carries, and
`swarm-required-services.nix` — the module that owns what the
swarm-services toggle implies — asserts all three explicitly.

hive-c0re asserts all three unconditionally, so an ordinary hive keeps
getting them with no opt-in: it is the host's only knowledge that agent
containers exist.

The resolver moves to its own `hive-gateway/dns.nix` so it can be gated
without reindenting the nginx half of the module.

Reinstates `network.enable`, dropping its `mkRemovedOptionModule` shim.
A config still carrying `network.enable = false` from before the removal
now switches the bridge off instead of failing eval.

Also deletes a duplicate `centralToggleOff` fixture in nix/module-eval.nix.
Two sibling slices added it independently (c5f60fd5, ce3b3d94); the merge
was textually clean and left `main` failing to evaluate at all, so this
file could not be gated without removing one.
This commit is contained in:
atlas 2026-09-19 13:45:55 +02:00 • committed by mara
commit d8e26a17bb
21 changed files with 249 additions and 75 deletions
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10
docs/networking/network.md
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@ -1,12 +1,12 @@
# hive-network
Host-side bridge + per-agent private-netns isolation — always on
whenever hyperhive is enabled. Configured via
`services.hyperhive.network.*`.
Host-side bridge + per-agent private-netns isolation, up on a host
where something attaches to it (`services.hyperhive.network.enable`,
asserted by the modules that need it rather than set by hand).
Configured via `services.hyperhive.network.*`.
> Isolation is the only mode — there is no shared-netns fallback. The
> former `services.hyperhive.network.enable`,
> `services.hyperhive.network.isolateContainers` and
> former `services.hyperhive.network.isolateContainers` and
> `services.hyperhive.network.upstreamDns` options were removed; a
> config that still sets one fails eval with a removal message.