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hyperhive/nix/host-modules/hive-gateway/vhosts.nix
atlas 92559af8e7 gateway: serve the hive dashboard on <hive>.hives.<swarm> behind authelia, drop htpasswd
The dashboard, its API, the swagger UI and the agent routes move to their
own vhost, `swarm.dashboardDomain` = `<hive>.hives.<swarm.domain>`, under
the swarm domain so authelia's session cookie reaches it. `/`, `/api/` and
`/api/docs/` ask authelia through `auth_request`, and authelia's
`operatorsOnly` rule for each hive's dashboard name lets only the admins
group in. The hive domain keeps matrix discovery and redirects every other
path to the new name.

The name rides as a SAN on the hive's own gateway leaf: the per-hive bao
role allows it, and hive-tls asks for it and checks coverage.

HTTP Basic auth is gone: the htpasswd writer and its test, the
`hivectl gateway` verbs and host-socket requests, the `gateway.auth`
options (now a removed-option error), the unauthorized page and the bcrypt
dependency. tmpfiles deletes a leftover gateway.htpasswd, which held
bcrypt hashes at 0644.

c0re hands out dashboard and agent URLs on the new name
(HYPERHIVE_DASHBOARD_DOMAIN), and the swarm controller's hive roster
carries each hive's dashboard name for the swarm UI's hive list.

Closes #3469
2026-10-15 21:44:27 +02:00

320 lines
14 KiB
Nix

# nginx virtual-host tree for the **hive's own** gateway surface: the `_`
# default server, which answers unmatched `Host` with a bare 444; the
# dashboard's vhost (`swarm.dashboardDomain`), which carries the dashboard
# behind authelia, per-agent routing and the swagger UI; and the vhost
# named for the hive domain, which carries matrix discovery, the legacy
# `<hive>/matrix/*` redirect and a redirect of everything else to the
# dashboard's name.
#
# Scope: a swarm service declares its own vhost and dns name in its own
# module, built from the kit this file also consumes
# (`services.hyperhive.gateway.lib`, ./vhost-lib.nix). That keeps a
# service's gateway surface next to the service, and keeps this file to
# the surface the hive itself serves.
#
# Pure function — called from ./default.nix with the outer-scope config
# values as arguments; returns `{ virtualHosts }`.
{
lib,
cfg, # services.hyperhive.gateway
matrixCfg, # services.hyperhive.swarm.matrix — what the homeserver IS
matrixDeployCfg, # services.hyperhive.deploy.matrix — what THIS host runs
hyperhiveDomain,
dashboardDomain, # services.hyperhive.swarm.dashboardDomain
autheliaDomain, # services.hyperhive.swarm.authelia.domain
runsHive, # deploy.hive-controller.enable — whether hive-c0re runs here
dashboardDist,
swaggerUiTheme, # nix/packages/swagger-ui-theme.nix: has index.html + hyperhive-theme.css
errorPages, # ./error-pages.nix: { notFound, unreachable, ssoUnavailable }
gwLib, # `services.hyperhive.gateway.lib` — ./vhost-lib.nix's kit, via the option
}:
let
# The kit's three members, bound to the names this file already used.
# Read through `gwLib` (the published option) rather than importing
# ./vhost-lib.nix directly: a service module declaring its own vhost
# gets the same object, so "the forge vhost listens where the gateway
# listens" is true by construction and not by review.
inherit (gwLib) securityHeaders;
vhostListen = gwLib.listen;
vhostTlsFor = gwLib.tlsFor;
# Public-facing scheme + port-suffix for URLs the gateway
# mints into responses (well-known JSON, the deprecated
# `<hive>/matrix/*` 301 redirect, future absolute-URL needs):
# always `https://<host>` (matrix-spec compliance) — the canonical
# 443 elides the port. See `docs/networking/gateway.md` ("Self-signed TLS").
publicScheme = "https";
publicPort = cfg.httpsPort;
publicPortSuffix = if publicPort == 443 then "" else ":${toString publicPort}";
# `<hive>/matrix/*` → 301 → `gatewayHost`'s vhost/$1 (`chat.<swarm-domain>`
# by default; legacy deep-link shim for the fluffychat sub-domain).
# See `docs/networking/gateway.md`.
matrixRedirectLocations =
lib.optionalAttrs (matrixDeployCfg.enable && matrixCfg.gatewayHost != null)
(
let
target = "${publicScheme}://${matrixCfg.gatewayHost}${publicPortSuffix}";
in
{
"/matrix/" = {
extraConfig = ''
rewrite ^/matrix/(.*)$ ${target}/$1 permanent;
'';
};
}
);
# `.well-known/matrix/{client,server}` discovery JSON, pointing clients
# and peers at `matrixCfg.gatewayHost`: the homeserver has no other
# address. CORS `*` per matrix spec. The `m.server` port-8448 carve-out
# is documented inline. See `docs/networking/gateway.md`.
wellKnownLocations = lib.optionalAttrs (matrixDeployCfg.enable && matrixCfg.gatewayHost != null) (
let
clientBaseUrl = "${publicScheme}://${matrixCfg.gatewayHost}${publicPortSuffix}";
# `m.server` is NOT a URL: per the matrix server-server spec
# (Resolving Server Names) a delegated host with NO port resolves
# to the federation default 8448 (after the SRV check) — the
# https-implies-443 rule does NOT apply here. So the port must be
# explicit even when it's the HTTPS default; `publicPortSuffix`
# (which drops :443) is right for the client base_url above but
# wrong for federation delegation. Without this, peers federate to
# <gatewayHost>:8448 (closed) while the endpoint actually lives on
# the gateway's 443 vhost. See docs/networking/gateway.md discovery flow.
serverHostPort = "${matrixCfg.gatewayHost}:${toString publicPort}";
in
{
"= /.well-known/matrix/client" = {
extraConfig = ''
default_type application/json;
${securityHeaders}
add_header Access-Control-Allow-Origin *;
return 200 '{"m.homeserver":{"base_url":"${clientBaseUrl}"}}';
'';
};
"= /.well-known/matrix/server" = {
extraConfig = ''
default_type application/json;
return 200 '{"m.server":"${serverHostPort}"}';
'';
};
}
);
# `/agent/` catch-all 404 + the two internal error-page targets it
# points at. Per-agent `location /agent/<name>/` blocks live in the
# runtime-generated `/var/lib/hive-gateway/conf/agents.conf` (included via
# `extraConfig` on the vhost); nginx longest-prefix-match makes a
# real `/agent/<name>/` beat this catch-all. `internal` keeps the
# error pages reachable only through nginx's error handling.
agentLocations = {
"/agent/" = {
extraConfig = ''
error_page 404 = /__hive_agent_not_found;
return 404;
'';
};
"= /__hive_agent_not_found" = {
extraConfig = ''
internal;
alias ${errorPages.notFound};
default_type text/html;
'';
};
"= /__hive_agent_unreachable" = {
extraConfig = ''
internal;
alias ${errorPages.unreachable};
default_type text/html;
'';
};
};
# Repeated verbatim by every operator-gated location (`/`, `/api/`,
# `/api/docs/`): nginx's `auth_request` does NOT inherit across sibling
# locations, so a location without it is reachable with no session.
#
# ⚠️ `auth_request` answers "is there a session", not "is this an
# operator". authelia's `operatorsOnly` rule for this name
# (../swarm-authelia.nix) is what refuses an agent's own account.
dashboardAuth = ''
auth_request /__hive_authelia;
# Captured BEFORE the error_page jump: inside the 401 handler
# `$request_uri` is the internal one.
auth_request_set $target_url $scheme://$http_host$request_uri;
error_page 401 =302 https://${autheliaDomain}/?rd=$target_url;
'';
# Dashboard: nginx static-serves the dist, c0re is API-only. Routing
# is by PATH, never content-type. c0re serves exactly two prefixes —
# `/api/` (all dashboard data + actions + the SSE streams) and
# `/health/` (liveness + readiness) — so those proxy to c0re and
# everything else serves the dist with an SPA fallback to index.html.
# Path routing is deterministic where an Accept-header split would make
# the SAME url behave differently by content-type (e.g. `/api/state`
# fetched with `Accept: text/html` wrongly getting index.html). A new
# top-level c0re route prefix (beyond /api + /health) needs
# a matching location added here.
dashboardProxyLocation = {
"/" = {
root = dashboardDist;
extraConfig = ''
try_files $uri /index.html;
${dashboardAuth}
'';
};
"/api/" = {
proxyPass = "http://${cfg.upstreamHost}:${toString cfg.upstreamPort}";
proxyWebsockets = true;
extraConfig = ''
# off + 1d keep the SSE streams (/api/dashboard/stream,
# /api/build-logs/id/{id}/stream) live.
proxy_buffering off;
proxy_read_timeout 1d;
${dashboardAuth}
'';
};
"/health/" = {
# No dashboardAuth here: an external uptime monitor can't do an
# interactive login. The endpoints themselves are scoped to
# status + warning kind/message (see hive-c0re/src/dashboard/
# health.rs) — no tokens, no agent detail — so exposing them
# unauthenticated isn't a new secret surface.
proxyPass = "http://${cfg.upstreamHost}:${toString cfg.upstreamPort}";
};
};
# Swagger UI: nginx hosts the FULL themed dist (`swaggerUiTheme` —
# vendored Swagger UI + our overlay, see nix/packages/swagger-ui-
# dist.nix + swagger-ui-theme.nix) straight from the store, with NO
# fallback to hive-c0re at all: core hosts only the JSON. Only
# `/api/openapi.json` (the live-generated spec `index.html` fetches;
# not under this prefix) proxies to c0re via "/api/" below — that's
# the one thing that has to stay dynamic.
#
# Prefix location, not exact-match: wins over "/api/" on plain
# prefix length (no ordering/`=` needed), and covers every file in
# the tree (bundle.js, maps, favicons, …), not just our 2 override
# files — hive-c0re serves none of this as a fallback.
# `= /api/docs` (no trailing slash) redirects to `/api/docs/`: nginx
# owns that redirect because hive-c0re has no route for it, and the
# H0M3 hub's own `/api/docs` link (no trailing slash) would 404
# without it.
swaggerUiLocations = {
"= /api/docs" = {
extraConfig = ''
return 301 /api/docs/;
'';
};
"/api/docs/" = {
alias = "${swaggerUiTheme}/";
extraConfig = ''
index index.html;
${dashboardAuth}
'';
};
};
# The subrequest `dashboardAuth` makes, the same as the swarm UI's
# (../swarm-ui.nix), which documents the header set.
autheliaLocation = {
"= /__hive_authelia" = {
proxyPass = "https://${autheliaDomain}/api/authz/auth-request";
# nixpkgs appends its OWN `Host $host` after extraConfig, which would
# override verifiedProxyTo's — see the comment on verifiedProxyTo in
# ./vhost-lib.nix.
recommendedProxySettings = false;
extraConfig = ''
internal;
${gwLib.verifiedProxyTo autheliaDomain}
proxy_pass_request_body off;
proxy_set_header Content-Length "";
proxy_set_header X-Original-Method $request_method;
proxy_set_header X-Original-URL $scheme://$http_host$request_uri;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Host $http_host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
'';
};
};
in
{
virtualHosts = {
# The catch-all, and now *only* a catch-all: anything whose `Host`
# matches no vhost gets an immediate 444 (close without a response)
# rather than being served the hive's dashboard.
#
# `_` is the idiomatic spelling because it is not a legal hostname,
# so it can never match a request by name — it serves traffic solely
# by being `default_server`.
#
# ⚠️ It still needs TLS attrs. It listens on the https port, so a
# client connecting by IP completes a TLS handshake *before* nginx
# can look at `Host` and reject it; with no cert the vhost fails to
# load. The certificate will not match what such a client asked for
# — that is unavoidable and correct: nothing can present a valid
# cert for a name the operator never issued one for.
#
# `mkDefault` per the operator: an operator with their own
# `default = true` vhost must be able to win without fighting
# priorities. The assertion in ./default.nix catches the case where
# they add one *without* turning this off, which nginx would
# otherwise only report at runtime as a failed config test.
"_" = (vhostTlsFor "_") // {
listen = vhostListen;
default = lib.mkDefault true;
extraConfig = ''
return 444;
'';
};
}
// lib.optionalAttrs (runsHive && dashboardDomain != null) {
# The dashboard, reachable by its own NAME under the swarm domain, where
# authelia's session cookie reaches. Only where a hive runs: the
# dashboard, agent routes and swagger UI proxy to hive-c0re, which runs
# only with the hive controller, and the hive leaf carrying this name
# exists only there.
#
# The agent routes live here and not on the hive domain because the
# agent page calls the dashboard's `/api/` on its own origin
# (frontend/packages/agent/src/lib/dashboardBase.ts), and the dashboard
# links to them by path. They carry no `auth_request`.
#
# `forceSSL` for the reason ../swarm-ui.nix gives: authelia answers the
# subrequest for an `http://` target with 400, which `auth_request`
# cannot read. `removeAttrs` because nixos asserts on a vhost declaring
# both.
${dashboardDomain} = (builtins.removeAttrs (vhostTlsFor dashboardDomain) [ "addSSL" ]) // {
forceSSL = true;
listen = vhostListen;
locations = agentLocations // dashboardProxyLocation // swaggerUiLocations // autheliaLocation;
# Per-agent location blocks, generated at runtime by
# hive-c0re and written to /var/lib/hive-gateway/conf/agents.conf
# on the host — the same machine nginx runs on. nginx parses
# `include` at config-load time so a reload (triggered by c0re
# after each agents.conf write) picks up new or removed
# agents without a nixos-rebuild. nginx's longest-prefix-
# match rule ensures `/agent/<name>/` from this file beats
# the `/agent/` catch-all above.
extraConfig = securityHeaders + ''
include /var/lib/hive-gateway/conf/agents.conf;
'';
};
# The hive domain's own vhost: matrix discovery, which federation
# reads off the server name, and a redirect of every other path to the
# dashboard's name, so a bookmarked dashboard or agent link still lands.
${hyperhiveDomain} = (vhostTlsFor hyperhiveDomain) // {
listen = vhostListen;
locations =
matrixRedirectLocations
// wellKnownLocations
// {
"/".extraConfig = ''
return 301 ${publicScheme}://${dashboardDomain}${publicPortSuffix}$request_uri;
'';
};
extraConfig = securityHeaders;
};
};
}