Commit Graph
9 Commits
Author SHA1 Message Date
flyemoji 5d4f3063a9 feat(operator): make any Paper image joinable behind the forwarding proxy
Velocity modern forwarding is proxy-WIDE. A backend that cannot verify the signed
handshake does not degrade -- it rejects every login the proxy forwards. Until now the
only backends that could verify it were the two images Felis builds itself
(deploy/limbo, deploy/lobby), which read FELIS_FORWARDING_SECRET in their own
entrypoints. An arbitrary Paper image a user brings does not, so it passed admission,
started, reported Ready, and was UNJOINABLE. The platform's answer was to recommend the
lobby image as a base for a user's own world (0018_recommended_images.sql), which was
never a good base -- it carries the /menu plugin whose job is to TRANSFER a joining
player away, the exact opposite of a server you mean to stay on.

The fix configures forwarding from OUTSIDE the image instead of requiring it inside.
The operator now injects a root `felis init-forwarding` initContainer into every user
server; it writes the proxies.velocity block into config/paper-global.yml and forces
online-mode=false in server.properties on the /data PVC before the main container
starts. The image needs no forwarding logic of its own, so the joinable set stops being
"images that self-configure forwarding" and becomes every Paper-family image the
platform runs.

buildStatefulSet gates the injection on the ABSENCE of the system-role label: the
Felis-built system servers already consume the secret in their entrypoints and the
login gate is a limbo, not Paper. It is also gated on a non-empty felis image name --
the operator Deployment passes its own image as FELIS_IMAGE, and an operator without it
skips the injection rather than failing, because a cluster whose proxy is not in modern
mode has nothing to configure.

The init runs as root deliberately. The world volume's ownership comes from the storage
provisioner and the main container runs as whatever UID its image declares, so root is
the only UID that can reliably write these files; it then chmods them 0666/0777 so that
non-root main container can rewrite them on boot. The privilege is bounded -- the init
exits before the server container starts and the server container keeps its own UID.
The alternative, an fsGroup on the pod, is noted in the code as the upgrade path if the
init ever stops running as root.

The writer merges rather than overwrites, both because Paper expands paper-global.yml to
its full default tree on first boot and because the panel file editor may edit either
file between boots. It sets proxies.velocity.* and the single online-mode key and leaves
every other setting alone. It is a no-op on an empty secret, for the same reason the env
var is optional: a proxy that is not in modern mode provisions no Secret, and wedging
every server's init on a missing optional value would be worse than the status quo.

felis-paper (deploy/paper) is the platform's plain-Paper expression of that base and
0019 seeds it recommended: same PAPER_JAR_URL the lobby build already resolves, no /menu
plugin, no forwarding gate, and a correctly-escaped RCON channel so the console, the
online-player list and permission commands work out of the box. 0018's row is left in
place -- an admin who kept it can keep it; this only adds the better default beside it.

Three fixes ride along, each of which the 1.8 path hit in practice.

bootstrap pins ViaVersion's serverside-blockconnections off. ConnectionData.init() only
builds its block-connection provider when Via's lowest supported protocol is below 1.13;
under modern forwarding the Velocity injector reports 393, so init() returns early,
blockConnectionProvider stays null, and the first 1.12.2->1.13 chunk rewrite dereferences
it -- a 1.8 client takes an NPE on the first chunk it is sent and never finishes joining.
Every call site is behind isServersideBlockConnections(), so switching it off skips all
of them, at a cosmetic pre-1.13 cost: fences and glass panes stop drawing connected.
ViaVersion ships the option ON, so a fresh install shipped that NPE. Seeding a file with
this one key suffices -- Config#loadConfig parses the bundled default as the base map and
merges the on-disk file over it, so every other option stays current across version
bumps. The absence of "Loading block connection mappings" in the log is NOT evidence this
worked: init() gates on the protocol version too, and that half fails on its own, so the
line is missing either way. The config value is the only evidence, which is what the test
asserts.

The Velocity unit gains -Dfelis.legacy-forwarding.servers=legacy18. A protocol-47 backend
sits behind ViaVersion, which strips modern forwarding's login-plugin-message when it
down-translates the proxy->backend pipeline to 47 -- the packet is registered from 1.13
and has nowhere to go. Only the handshake address field survives Via, so the Felis fork
forwards the named servers BungeeCord-style while every other backend keeps modern+secret
untouched. v1 hardcodes the one legacy backend; rendering the list from the MinecraftServer
CRs is the upgrade path.

deploy/lobby's set_prop escapes the value before substituting it. The RCON password is
operator-provisioned arbitrary bytes, and a '|', '\' or '&' in one corrupts a bare
`sed s|...|...|` and silently kills the key -- taking the console, the online-player list
and permission commands with it. deploy/paper was written with the escaping, so the lobby
gets the same rather than leaving the sibling caller broken.

Verified: the full Go suite passes on Windows and on Fedora 44 (go1.26.4), where
TestWriteForwardingFileModes actually runs its POSIX mode assertions instead of skipping.
The new tests cover the initContainer's image, root UID, world mount and secret env; the
merge preserving unrelated config trees; the properties upsert including the commented-key
case; and the bootstrap script both writing the Via key and still calling the function
that writes it.

Not verified: the initContainer has never run in a real cluster, and the felis-paper
image is code-only here as the other game-stack images are -- no Go CI builds them.

The ViaVersion pin is the one piece with live evidence, and that evidence is what it was
written from. Before it, a client was cut within a second of "logged in with entity id"
on legacy18 while the proxy logged the NPE above -- REMAP OF LEVEL_CHUNK chained into
Protocol1_8To1_9's MAP_BULK_CHUNK. It was applied by hand to the running proxy on
2026-07-24 at 14:47 and only then written back into bootstrap. At 14:48:14 the same
player joined real Paper 1.8.8 through the fork, issued commands, approved an op-login
from in-game at 14:50:39, and held the connection until 15:30:09 -- 42 minutes.

Neither session says which client version it was. The proxy never logged a protocol
number. It bounds above at 1.16.4, from the viabackwards "(1.17->1.16.4) ... for 1.16
players and below" warning that fired for that player on the lobby leg, and no lower --
Via floors every handshake to the proxy's 393, so anything from 47 up is admissible.
Reading Protocol1_8To1_9 in the stack as a client-version tell is backwards: that chain
runs on the BACKEND leg, up-translating the 47 server's chunks to the floor. What the
NPE proves is that the pin was load-bearing, not who was holding the mouse.

That is one hand-run session on one host, and it is not a cell. The 393->47 leg has one
now, in Felis-Legacy -- FL-009 puts a genuine protocol-47 client on a stock Paper 1.8.8
behind this proxy and flips this same option: on it, cut 0.2s after JoinGame with the
fault above; off, holds. No automated test in THIS repository exercises the leg.
2026-07-28 09:13:58 +09:00
flyemoji 694e3cb800 feat(rcon): provision per-server RCON so the console, player list and permissions work
A server created through the panel never had RCON. CreateServer built a
MinecraftServerSpec without a Rcon block at all, so the field took its zero value
and every downstream consumer read Enabled=false. Nothing failed loudly: the
operator skips the probe when RCON is off and marks the server Ready on pod
readiness alone, so the panel showed "运行中" for a server the control plane could
not talk to. Everything that rides the write channel (spec §8 写=RCON) was dead —
the online-player list returned nothing because Status.Players is only ever
sampled by the probe, and console writes answered 503 ErrConsoleUnavailable
because internal/api/console.go refuses when Enabled is false.

The whole RCON machinery already existed — builders gate the service port,
container port, preStop save-and-stop hook and the RCON_* env on Spec.Rcon,
the reconciler probes and reports, console.go dials, the NetworkPolicy opens
25575 to {api, operator}. The only thing missing was that nobody ever turned it
on or created a password. This wires the three layers that were absent.

Provisioning lives in the operator, not in felis-api. felis-api holds secrets:get
and not create, and giving it create solely to mint a password it immediately
stops caring about (console.go re-reads the Secret at command time) would widen
the API's powers for nothing. The operator already reads every Secret in the
namespace, so adding create there grants no read it did not have. It also makes
provisioning declarative: a Secret deleted by hand comes back on the next pass, a
controller reference garbage-collects it with the server so no delete path has to
remember it, and a server that predates RCON only needs spec.rcon filled in for
the password to appear. The name comes from naming.RconSecretName so felis-api,
`felis setup` and the operator cannot drift apart on it.

RCON is enabled per system service rather than by default, because enabling it on
a backend that serves no RCON listener is destructive rather than merely useless:
the operator gates readiness on the probe, so such a server never leaves Starting
and is eventually marked Failed. The login limbo is exactly that backend
(LOOHP/Limbo has no RCON) and it is the front door, so it stays off; the lobby
runs Paper and is administered through the panel like any other server, so it is
on.

Paper only reads RCON settings from server.properties, so the operator's injected
RCON_PASSWORD did nothing on its own — felis-lobby's entrypoint now writes the
three keys on every boot. Rewriting them each time makes the copy in the world
volume derived state rather than the source of truth, so an owner who edits them
through the panel's file editor cannot lock the control plane out of their own
server. Without a password it sets enable-rcon=false and warns rather than
refusing to start: unlike the forwarding secret, a missing RCON password degrades
the server rather than making it unsafe.

That password landing in server.properties is a §286 exposure (RCON 密码绝不下发
前端), since server.properties is readable through the file editor. It is redacted
on read rather than the file being denied outright the way config/paper-global.yml
is: the forwarding secret is cluster-wide material that merely happens to sit in
the volume, whereas server.properties is the single most-edited config an owner
has, and hiding one line should not cost them MOTD, difficulty and view-distance.
The write path is deliberately left alone — the boot-time rewrite restores the
real value, which is what makes redacting rather than denying safe here.

Also guards idle auto-stop on Rcon.Enabled. Status.Players is only meaningful
when the probe ran; with RCON off it keeps its zero value, which that branch would
have read as "empty" and used to stop a server full of people. AutoStopEnabled is
not currently settable through any path, so this is a latent footgun rather than a
live bug, but it is one line and the alternative is discovering it in production.

Checks: the operator provisions a missing Secret with a 32-hex-char password and a
controller reference, and does not rotate an existing one; idle auto-stop stays
inert without RCON; the editor redacts rcon.password from the world root's
server.properties while leaving the rest of the file (and a plugin's own nested
copy) intact; login has RCON off and lobby has it on with the shared secret name;
CreateServer sets the block. That last one departs from K8sCluster being
integration-tested against a live cluster: this defect was a struct literal
missing a field, it shipped, and a fake client is enough to pin a struct literal.

Existing servers are NOT migrated by this change — CreateServer only covers new
ones and ensureSystemServers is create-if-absent, so a `felis setup` re-run will
not touch an existing lobby. A deployed install additionally needs the
felis-lobby image rebuilt and re-imported for the entrypoint change, and its pods
recreated, before the RCON keys reach server.properties.
2026-07-21 00:12:37 +09:00
flyemoji f0b79e9edd feat(mail): deliver email one-time codes over SMTP and add the setup email screen
Felis never actually sent mail: OTP codes for onboarding, email login and
op-login were only written to the felis-api log behind a "demo has no SMTP"
limitation, and the Settings/SMTP flow those comments promised was never
built. Combined with the bootstrap Owner's address being recorded unverified
(87279a1), op-login start always took the anti-enumeration neutral branch and
minted a fake request_id, so the in-game approve inevitably answered "No
pending operator sign-in with that code".

Give the codes a real delivery path, configured in felis.toml rather than a
web settings page so config keeps a single source of truth:

- config: new [smtp] table (host, port defaulting to 587, from, username,
  password_ref). Validation requires a plausible from address and a sane
  port; the password itself never enters the config file.
- internal/mail (new): stdlib net/smtp mailer implementing the api.OTPMailer
  seam. Port 465 dials implicit TLS, other ports upgrade via STARTTLS when
  advertised; AUTH only when a username is configured (PlainAuth itself
  refuses plaintext, so the password cannot leak to a TLS-less relay).
  Ping() proves reachability and credentials without sending mail. The
  message shape (CRLF, Q-encoded bilingual subject) is pinned by test.
- platform: felis-smtp Secret constants and an optional FELIS_SMTP_PASSWORD
  env var on the felis-api Deployment, mirroring felis-uploads-s3.
- cmd/felis api: construct the real mailer when [smtp] is configured; keep
  the log fallback otherwise and say so at startup. Warn when a username is
  set but the credentials env is empty.
- setup TUI: "e" on the summary/status screen opens the email form (host,
  port, from, optional auth). Apply order: Ping preflight, [smtp] into both
  host and pod config files, felis-smtp Secret piped to kubectl via stdin,
  config Secret, felis-api rollout. A failed preflight leaves the install
  untouched. SMTP is deliberately not a wizard rail step: first-run stays
  mail-less by design, and the passkey minted at onboarding is the pre-SMTP
  owner credential.

Also make PGRepo.UserByEmail match case-insensitively (lower(email) =
lower($1)), honoring the interface contract and the users_verified_email_
unique partial index; the fake repo already matched with EqualFold.

Existing installs need the felis-api Deployment manifest re-applied (e.g. a
bootstrap re-run) before the new env var exists; a rollout restart alone
cannot add it.
2026-07-20 10:24:52 +09:00
flyemoji 5dc8eb92a8 feat(operator): secure system server workloads 2026-07-14 02:56:19 +09:00
flyemoji 2ba994889e fix(platform): front the felis-api internal face on its own ClusterIP Service
The login limbo pod dials FELIS_API_BASE_URL = felis-api.<ns>.svc:8081 (the
internal face, service-token auth) to mint bind codes and poll link status, but
the only Service named felis-api is the external NodePort face and declares only
port 443. A Service answers only on its declared ports, so felis-api:8081 had no
backend and every login-pod internal call silently failed to connect.

Render a separate ClusterIP Service felis-api-internal for port 8081 and repoint
InternalAPIBaseURL at it. A second port on the NodePort Service is not an option:
Type=NodePort allocates a node port for every declared port with no per-port
opt-out, so it would publish the no-Zero-Trust internal face on every node's
external IP. A distinct ClusterIP Service keeps 8081 in-cluster only, reachable
by the login pod via DNS and by the on-node break-glass console via the
ClusterIP (exported as APIInternalServiceName / APIInternalPort).

Manifest-level fix; the live packet path is pending real-cluster verification.
2026-07-07 11:24:09 +09:00
Lemon-miaow 598f3d31f4 feat(submit): local + S3 backends for modpack upload contexts, installer-selectable 2026-07-02 23:38:46 +08:00
flyemoji 3fdb3d032e feat(platform): internal API base-URL helper and single-sourced token secret
InternalAPIBaseURL builds the felis-api internal-face DNS from SAAPI and the internal port for cross-namespace callers (the login limbo). The service-token Secret name/key now reference the shared naming constants so the Deployment wiring and the operator's login-pod injection cannot drift.
2026-07-02 19:38:37 +09:00
Lemon-miaow e5f1682898 refactor(deploy)!: TUI 2026-06-29 20:17:17 +08:00
flyemoji 47fcd90f75 feat(platform): add node orchestration and the felis entrypoint
The platform package that places servers across nodes and wires the operator, build, restore, and reaper subsystems, plus cmd/felis, the single binary that runs them.
2026-06-26 23:32:38 +09:00