feat(nostr-vpn): package paid-exit seller + web control panel as manifest apps

Phase 1 of docs/nostr-vpn-integration-plan.md's Phase 0->4 plan (seller-side
rootless feasibility already confirmed there). Two apps, one image:

- apps/nostr-vpn: the daemon. Own network namespace (container.network:
  pasta), NET_ADMIN+NET_RAW scoped to that netns, /dev/net/tun, and the
  net.ipv4.ip_forward sysctl via the primitive added in e42bd26. UDP 51822
  (not upstream's default 51820, which collides with archipelago-wg on
  fleet nodes per the Phase 0 log). Seller mode stays off until an operator
  explicitly enables it (paid_exit.enabled defaults to false upstream).
- apps/nostr-vpn-web: the control panel, gated behind 127.0.0.1:38080,
  talking to the daemon only through the shared /data volume (state-file
  status + shelling out to the nvpn CLI) -- no network link between the
  two containers, matching upstream's own umbrel/docker-compose.yml.
- docker/nostr-vpn: upstream's umbrel/Dockerfile, unchanged except for how
  the pinned commit arrives (shallow git fetch of a verified SHA, since
  codeload.github.com archive tarballs 404 from this environment and
  GitHub won't fetch an arbitrary SHA directly). Entrypoint seeds a minimal
  config.toml with the chosen listen_port on first boot only -- every
  AppConfig field is `serde(default = ...)`, confirmed by reading
  nostr-vpn-core directly, so this merges with nvpn's own identity/wallet
  bootstrap instead of needing a generated_secrets entry or full config
  template, and never touches a config that already exists.

Both volumes point at /var/lib/archipelago/nostr-vpn, adopting state from
the old root-mode install. Build and the seed-config path were verified
against the real `nvpn daemon` binary, not just read -- see the plan doc's
Phase 1 log for what that caught (a fabricated commit SHA, the codeload
404, wrong default branch name, and confirming identity/wallet persistence
actually survives container recreation).

Not done here, flagged in the plan doc instead: removing the old root-mode
path (rpc/vpn.rs, rpc/auth.rs's auto-enable-on-login) touches live
onboarding on every node, not just this app -- needs explicit sign-off.
Also missing: a stop-hook/uninstall-guard manifest primitive (doesn't
exist yet -- LifecycleHooks only has post_install/pre_start) for the
collect-due-on-stop and non-zero-wallet uninstall guard, and registry
mirroring + catalog signing (need credentials this pass doesn't have).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/nostr-vpn-web/manifest.yml

@@ -0,0 +1,89 @@
+app:
+  id: nostr-vpn-web
+  name: Nostr VPN Control Panel
+  version: 1.0.0
+  upstream:
+    kind: github
+    repo: mmalmi/nostr-vpn
+  description: |
+    Web control panel for the nostr-vpn paid-exit seller (apps/nostr-vpn).
+    Talks to the daemon only through the shared /data volume (state-file
+    status + shelling out to the nvpn CLI) -- no network link between the
+    two containers, mirroring upstream's own umbrel/docker-compose.yml
+    exactly (read directly, not assumed). Same image as apps/nostr-vpn,
+    different entrypoint args.
+  category: money
+
+  container:
+    build:
+      context: /opt/archipelago/docker/nostr-vpn
+      dockerfile: Dockerfile
+      tag: localhost/nostr-vpn:local
+    entrypoint: ["/usr/local/bin/archy-nvpn-entrypoint.sh"]
+    custom_args:
+      - /usr/local/bin/nvpn-web
+      - --listen
+      - 0.0.0.0:38080
+      - --behind-trusted-proxy
+      - --config
+      - /data/config/nvpn/config.toml
+
+  dependencies:
+    - app_id: nostr-vpn
+
+  resources:
+    memory_limit: 128Mi
+
+  security:
+    capabilities: []
+    readonly_root: false
+    no_new_privileges: true
+    network_policy: bridge
+
+  ports:
+    - host: 38080
+      container: 38080
+      protocol: tcp
+      bind: 127.0.0.1
+      auth: gated
+
+  volumes:
+    # Same volume as apps/nostr-vpn, read-write: the panel's wallet/seller
+    # actions (wallet send, paid-exit run) shell out to the nvpn CLI
+    # against this same config.toml and data dir, per
+    # NVPN_EXTERNAL_DAEMON/NVPN_DAEMON_STATUS_MODE below.
+    - type: bind
+      source: /var/lib/archipelago/nostr-vpn
+      target: /data
+      options: [rw]
+
+  environment:
+    - NVPN_CLI_PATH=/usr/local/bin/nvpn
+    - NVPN_DAEMON_STATUS_MODE=state-file
+    - NVPN_EXTERNAL_DAEMON=true
+
+  health_check:
+    type: http
+    endpoint: http://127.0.0.1:38080
+    path: /
+    interval: 30s
+    timeout: 5s
+    retries: 3
+
+  interfaces:
+    main:
+      name: Control Panel
+      description: nostr-vpn paid-exit status, wallet, and seller settings
+      type: ui
+      port: 38080
+      protocol: http
+      path: /
+
+  metadata:
+    category: money
+    tier: optional
+    author: mmalmi
+    repo: https://github.com/mmalmi/nostr-vpn
+    features:
+      - Paid-exit seller status, wallet, and offer controls
+      - Shares state with apps/nostr-vpn via one data volume, no RPC link

apps/nostr-vpn/manifest.yml

@@ -0,0 +1,119 @@
+app:
+  id: nostr-vpn
+  name: Nostr VPN (paid exit)
+  version: 1.0.0
+  # Pinned commit, not a tag -- upstream has no release tags yet. Re-pin
+  # deliberately in docker/nostr-vpn/Dockerfile's NVPN_COMMIT build arg; see
+  # docs/nostr-vpn-integration-plan.md for the Phase 0 feasibility log this
+  # pin was verified against.
+  upstream:
+    kind: github
+    repo: mmalmi/nostr-vpn
+  description: |
+    Sells spare bandwidth as a Nostr-discovered, Cashu-metered paid exit
+    (github.com/mmalmi/nostr-vpn). Runs rootless in its own network
+    namespace (pasta) -- NET_ADMIN/NET_RAW are scoped to that netns, never
+    the host. Seller mode defaults OFF (upstream's own `paid_exit.enabled`
+    default); turning it on is a separate step (Phase 3 UI, not yet built).
+
+    This replaces the old root-mode integration (image-recipe's
+    nostr-vpn.service running `nvpn daemon` as root, auto-enabled on first
+    login via rpc/auth.rs) that broke the rootless/no-OS-reliance
+    invariant. That old path and its RPC TOML-rewriting code
+    (rpc/vpn.rs::handle_vpn_add_participant) are a separate, higher-risk
+    removal -- not done here, since it's wired into every node's login
+    flow today, not just this app.
+  category: money
+
+  container:
+    build:
+      context: /opt/archipelago/docker/nostr-vpn
+      dockerfile: Dockerfile
+      tag: localhost/nostr-vpn:local
+    network: pasta
+    # Image has no image-level ENTRYPOINT/CMD (see Dockerfile) -- both this
+    # app and nostr-vpn-web point the shared seed-config entrypoint at
+    # different binaries/args.
+    entrypoint: ["/usr/local/bin/archy-nvpn-entrypoint.sh"]
+    custom_args:
+      - /usr/local/bin/nvpn
+      - daemon
+      - --config
+      - /data/config/nvpn/config.toml
+
+  dependencies:
+    - storage: 1Gi
+
+  resources:
+    memory_limit: 256Mi
+
+  security:
+    # NET_ADMIN/NET_RAW: TUN device + the exit forwarding/NAT nvpn installs
+    # itself inside its own netns (nvpn-exit-forward-in/out, nvpn-exit-masq,
+    # the MSS clamp) -- confirmed working rootless in Phase 0 testing, with
+    # no capabilities beyond these two plus the sysctl below. Host iptables
+    # and routes were confirmed untouched.
+    capabilities: [NET_ADMIN, NET_RAW]
+    # false: not verified read-only-root-compatible in Phase 0 testing (the
+    # working run flags there didn't include --read-only). nvpn's own state
+    # (config/identity/wallet) lives on the /data volume either way.
+    readonly_root: false
+    no_new_privileges: true
+    network_policy: isolated
+
+  # Rootless /proc/sys is read-only, so forwarding can only be set at
+  # container-create time via this primitive (added for exactly this app --
+  # see commit e42bd26). nvpn only *reads* ip_forward and writes it when 0,
+  # so setting it here once at create is enough; nvpn's own cleanup path
+  # leaves it alone.
+  sysctls:
+    net.ipv4.ip_forward: "1"
+
+  devices:
+    - /dev/net/tun
+
+  ports:
+    # Paid-exit buyers dial this directly from the open internet to pay for
+    # bandwidth -- it's the whole point of the app, not an admin surface,
+    # and it speaks nvpn's own FIPS UDP wire protocol, not HTTP, so the app
+    # gate cannot front it. 51822, not upstream's default 51820: that
+    # collides with archipelago-wg (kernel WireGuard) on fleet nodes --
+    # found running both side by side in Phase 0 testing.
+    - host: 51822
+      container: 51822
+      protocol: udp
+      auth: none
+      auth_rationale: >-
+        FIPS UDP transport for paid-exit buyers. Anonymous by design (not
+        HTTP), and the seller is off by default (paid_exit.enabled=false)
+        until an operator explicitly turns on selling, so exposure here
+        alone grants no access to anything.
+
+  volumes:
+    # Adopts whatever a node already has under the old root-mode path
+    # (nostr-vpn.service wrote here too) -- an identity, wallet balance, or
+    # pending Cashu credit must survive this migration, not reset.
+    - type: bind
+      source: /var/lib/archipelago/nostr-vpn
+      target: /data
+      options: [rw]
+
+  environment:
+    - NVPN_LISTEN_PORT=51822
+
+  health_check:
+    type: exec
+    endpoint: nvpn status
+    interval: 30s
+    timeout: 10s
+    retries: 3
+
+  metadata:
+    category: money
+    tier: optional
+    author: mmalmi
+    repo: https://github.com/mmalmi/nostr-vpn
+    features:
+      - Sell spare bandwidth as a Cashu-metered Nostr paid exit
+      - Rootless: own network namespace, no host network access
+      - Seller mode off by default

docker/nostr-vpn/Dockerfile

@@ -0,0 +1,98 @@
+# syntax=docker/dockerfile:1.7
+#
+# Packages nostr-vpn (github.com/mmalmi/nostr-vpn) as the paid-exit seller
+# daemon + its web control panel. Both apps/nostr-vpn and apps/nostr-vpn-web
+# build from this one image (same binaries, different entrypoint/command),
+# mirroring upstream's own umbrel/docker-compose.yml, which runs `daemon`
+# and `web` as two containers sharing one /data volume with no network link
+# between them — reviewed directly, not assumed.
+#
+# This is upstream's own umbrel/Dockerfile, unchanged except for how the
+# source arrives (a pinned commit tarball here, instead of a local checkout
+# in their build context) — see docs/nostr-vpn-integration-plan.md for why
+# the pin exists and what was verified against this exact commit.
+ARG NVPN_COMMIT=87f19447741998ab5a06aadc701abc7ae021004b
+
+FROM debian:bookworm-slim AS source
+ARG NVPN_COMMIT
+# git clone, not a codeload.github.com/archive/<sha>.tar.gz tarball: the
+# latter 404s from this environment even for refs/heads/main HEAD (network
+# policy on that specific endpoint, not a real upstream 404 — plain
+# `git clone https://github.com/...` works fine).
+RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates git \
+    && rm -rf /var/lib/apt/lists/*
+WORKDIR /src
+# GitHub's anonymous smart-HTTP upload-pack refuses to fetch an arbitrary
+# SHA directly (only advertised refs) — fetch main by name and verify the
+# pinned commit is actually what we land on, so a force-push to main can't
+# silently swap out the reviewed code.
+RUN git init -q . \
+    && git remote add origin https://github.com/mmalmi/nostr-vpn.git \
+    && git fetch -q --depth 1 origin master \
+    && git checkout -q FETCH_HEAD \
+    && test "$(git rev-parse HEAD)" = "${NVPN_COMMIT}" \
+    && rm -rf .git
+
+FROM node:24-bookworm AS web-builder
+WORKDIR /work/web/control-panel
+COPY --from=source /src/web/control-panel/package.json /src/web/control-panel/pnpm-lock.yaml ./
+RUN --mount=type=cache,id=nostr-vpn-pnpm-store,target=/pnpm/store \
+    corepack enable \
+    && corepack prepare pnpm@10.28.2 --activate \
+    && pnpm install --frozen-lockfile --store-dir /pnpm/store
+COPY --from=source /src/web/control-panel ./
+RUN pnpm run build
+
+FROM rust:1.94-bookworm AS rust-builder
+ARG TARGETPLATFORM
+WORKDIR /work
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+      clang \
+      libclang-dev \
+      libdbus-1-dev \
+      pkg-config \
+    && rm -rf /var/lib/apt/lists/*
+COPY --from=source /src/Cargo.toml /src/Cargo.lock ./
+COPY --from=source /src/crates ./crates
+COPY --from=source /src/vendor ./vendor
+RUN --mount=type=cache,id=nostr-vpn-cargo-registry-${TARGETPLATFORM},target=/usr/local/cargo/registry \
+    --mount=type=cache,id=nostr-vpn-cargo-git-${TARGETPLATFORM},target=/usr/local/cargo/git \
+    --mount=type=cache,id=nostr-vpn-cargo-target-${TARGETPLATFORM},target=/work/target \
+    cargo build --release -p nvpn -p nostr-vpn-web \
+    && mkdir -p /out \
+    && cp /work/target/release/nvpn /out/nvpn \
+    && cp /work/target/release/nostr-vpn-web /out/nvpn-web
+
+FROM debian:bookworm-slim AS runtime
+LABEL org.opencontainers.image.source="https://github.com/mmalmi/nostr-vpn" \
+      org.opencontainers.image.description="nostr-vpn, packaged as an Archipelago paid-exit seller app" \
+      org.opencontainers.image.licenses="MIT"
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+      ca-certificates \
+      iproute2 \
+      iptables \
+      iputils-ping \
+      libdbus-1-3 \
+      procps \
+      wireguard-tools \
+    && rm -rf /var/lib/apt/lists/*
+COPY --from=rust-builder /out/nvpn /usr/local/bin/nvpn
+COPY --from=rust-builder /out/nvpn-web /usr/local/bin/nvpn-web
+COPY --from=web-builder /work/web/control-panel/dist /usr/share/nostr-vpn/web
+COPY docker-entrypoint.sh /usr/local/bin/archy-nvpn-entrypoint.sh
+RUN chmod +x /usr/local/bin/archy-nvpn-entrypoint.sh
+
+ENV HOME=/data/home \
+    XDG_CONFIG_HOME=/data/config \
+    NVPN_CLI_PATH=/usr/local/bin/nvpn \
+    RUST_LOG=info
+
+EXPOSE 38080
+VOLUME ["/data"]
+
+# No image-level ENTRYPOINT/CMD: apps/nostr-vpn and apps/nostr-vpn-web set
+# their own entrypoint/custom_args in their manifests (daemon vs. web),
+# both pointing at archy-nvpn-entrypoint.sh — see that script for why the
+# seed-config step has to run before either binary starts.

docker/nostr-vpn/docker-entrypoint.sh

@@ -0,0 +1,37 @@
+#!/bin/sh
+# Shared entrypoint for both apps/nostr-vpn (daemon) and apps/nostr-vpn-web
+# (control panel) -- they're the same image, differing only in the args
+# this script execs into (see each manifest's container.entrypoint/custom_args).
+#
+# Seeds a minimal config.toml with our chosen listen_port BEFORE nvpn's own
+# bootstrap (config_bootstrap.rs::load_or_default_config) ever runs, so the
+# very first boot never has to self-heal off upstream's default 51820 --
+# archy-x250 fleet nodes already run archipelago-wg on that port (found in
+# Phase 0 testing, see docs/nostr-vpn-integration-plan.md). Every AppConfig
+# field has #[serde(default = ...)], confirmed by reading
+# crates/nostr-vpn-core/src/config/types.rs directly, so a partial TOML here
+# merges cleanly with nvpn's own defaults (including the self-generated
+# Nostr seller identity) instead of needing a full config.
+#
+# Never overwrites an existing config.toml: this volume may already hold a
+# seller's identity, wallet, and pending Cashu credit adopted from the old
+# root-mode install (/var/lib/archipelago/nostr-vpn) -- clobbering it would
+# be a real funds-safety bug, not just a config reset.
+set -eu
+
+NVPN_LISTEN_PORT="${NVPN_LISTEN_PORT:-51822}"
+CONFIG_DIR=/data/config/nvpn
+CONFIG_PATH="$CONFIG_DIR/config.toml"
+
+mkdir -p "$CONFIG_DIR" /data/home
+
+if [ ! -f "$CONFIG_PATH" ]; then
+  cat > "$CONFIG_PATH" <<EOF
+[node]
+listen_port = ${NVPN_LISTEN_PORT}
+EOF
+  chmod 600 "$CONFIG_PATH"
+  echo "nostr-vpn: seeded $CONFIG_PATH with listen_port=${NVPN_LISTEN_PORT} (first boot)"
+fi
+
+exec "$@"