feat(netbird): manifest-driven migration via reusable orchestrator primitives

Migrate the netbird stack (server/dashboard/proxy) off ~500 lines of per-app Rust
to 3 declarative manifests, adding 4 reusable primitives:
- SecretGenKind::Base64 (netbird relay authSecret + sqlite store encryptionKey)
- GeneratedCert schema + ensure_manifest_certs (self-signed TLS so the dashboard
  gets a secure context for OIDC PKCE — issue #15; https proxy on 8087 preserved)
- templated GeneratedFile render: {{HOST_IP}}/{{HOST_MDNS}}/{{NETWORK_GATEWAY}}
  (aardvark resolver for the #15 stale-IP fix) /{{secret:NAME}} (never logged)
- legacy create_container now honours port.protocol (3478/udp STUN)
install_netbird_stack routes via the orchestrator first (legacy kept as fallback,
mirroring indeedhub); launch URL derives https://{host_ip}:8087 from host facts.
Legacy Rust deletion deferred to post-live-verify.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/netbird-dashboard/manifest.yml

@@ -0,0 +1,77 @@
+app:
+  id: netbird-dashboard
+  name: NetBird Dashboard
+  version: "2.38.0"
+  description: NetBird management dashboard (SPA). Internal stack member served through the netbird proxy.
+  category: networking
+
+  # Hyphen name matches runtime references + the live container (adoption).
+  # Alias `netbird-dashboard` is the short hostname the proxy's nginx proxies to.
+  container_name: netbird-dashboard
+
+  container:
+    image: docker.io/netbirdio/dashboard:v2.38.0
+    pull_policy: if-not-present
+    network: netbird-net
+    network_aliases: [netbird-dashboard]
+    # The dashboard SPA bakes its API/OIDC base URL from these at container
+    # start. They must point at the proxy's public HTTPS origin (8087) so the
+    # browser uses a secure context (window.crypto.subtle / OIDC PKCE, #15).
+    # {{HOST_IP}} is the node's primary host IP, resolved at apply time.
+    derived_env:
+      - key: NETBIRD_MGMT_API_ENDPOINT
+        template: "https://{{HOST_IP}}:8087"
+      - key: NETBIRD_MGMT_GRPC_API_ENDPOINT
+        template: "https://{{HOST_IP}}:8087"
+      - key: AUTH_AUTHORITY
+        template: "https://{{HOST_IP}}:8087/oauth2"
+
+  dependencies:
+    - app_id: netbird-server
+
+  resources:
+    memory_limit: 256Mi
+
+  security:
+    # cap-drop=ALL is applied by the orchestrator. The dashboard image runs
+    # nginx (master as root, drops workers) binding :80 — needs the worker-drop
+    # caps + NET_BIND_SERVICE for the privileged port.
+    capabilities: [CHOWN, DAC_OVERRIDE, SETGID, SETUID, NET_BIND_SERVICE]
+    readonly_root: false
+    network_policy: isolated
+
+  # Internal only — reached container-to-container by the proxy via netbird-net.
+  ports: []
+
+  volumes: []
+
+  environment:
+    - AUTH_AUDIENCE=netbird-dashboard
+    - AUTH_CLIENT_ID=netbird-dashboard
+    - AUTH_CLIENT_SECRET=
+    - USE_AUTH0=false
+    - AUTH_SUPPORTED_SCOPES=openid profile email groups
+    - AUTH_REDIRECT_URI=/nb-auth
+    - AUTH_SILENT_REDIRECT_URI=/nb-silent-auth
+    - NETBIRD_TOKEN_SOURCE=idToken
+    - NGINX_SSL_PORT=443
+    - LETSENCRYPT_DOMAIN=none
+
+  health_check:
+    type: tcp
+    endpoint: localhost:80
+    interval: 30s
+    timeout: 5s
+    retries: 5
+    start_period: 20s
+
+  metadata:
+    author: NetBird
+    icon: /assets/img/app-icons/netbird.svg
+    website: https://netbird.io
+    repo: https://github.com/netbirdio/dashboard
+    license: BSD-3-Clause
+    tags:
+      - networking
+      - vpn
+      - dashboard

apps/netbird-server/manifest.yml

@@ -0,0 +1,122 @@
+app:
+  id: netbird-server
+  name: NetBird Server
+  version: "0.71.2"
+  description: NetBird combined management / signal / relay server with an embedded identity provider and STUN. Backend for the self-hosted NetBird mesh VPN.
+  category: networking
+
+  # Hyphen name matches the runtime references (crash_recovery / dependencies /
+  # config startup order) + the live container, so on an existing node the
+  # orchestrator ADOPTS the running server rather than recreating it (data +
+  # the sqlite store under /var/lib/netbird preserved). Alias `netbird-server`
+  # is the short hostname the proxy's nginx proxies/grpc-passes to.
+  container_name: netbird-server
+
+  container:
+    image: docker.io/netbirdio/netbird-server:0.71.2
+    pull_policy: if-not-present
+    network: netbird-net
+    network_aliases: [netbird-server]
+    # The relay authSecret and the sqlite store encryptionKey are base64 keys
+    # (the server base64-decodes them to recover raw bytes — hex would decode to
+    # the wrong value). Generated once and reused: ensure_generated_secrets
+    # no-ops when the file already exists, so a re-render of config.yaml on an
+    # adopted node keeps the same keys (regenerating would orphan the store).
+    generated_secrets:
+      - name: netbird-relay-auth-secret
+        kind: base64
+      - name: netbird-store-encryption-key
+        kind: base64
+    # Pass the rendered config explicitly, mirroring the legacy `--config` arg.
+    custom_args: ["--config", "/etc/netbird/config.yaml"]
+
+  dependencies:
+    - storage: 1Gi
+
+  resources:
+    memory_limit: 1Gi
+
+  security:
+    # cap-drop=ALL is applied by the orchestrator. The server binds :80
+    # (management/signal/relay HTTP + gRPC) inside the container — a privileged
+    # port — so it needs NET_BIND_SERVICE. STUN is 3478/udp (unprivileged).
+    capabilities: [NET_BIND_SERVICE]
+    readonly_root: false
+    network_policy: isolated
+
+  ports:
+    - host: 8086
+      container: 80
+      protocol: tcp   # management API + embedded OIDC issuer (/oauth2)
+    - host: 3478
+      container: 3478
+      protocol: udp   # STUN — must be UDP; tcp here breaks relay discovery
+
+  volumes:
+    - type: bind
+      source: /var/lib/archipelago/netbird/data
+      target: /var/lib/netbird
+      options: [rw]
+    # The rendered config.yaml, read-only. Re-rendered on every reconcile from
+    # host facts + the base64 secrets; idempotent (stable bytes → no restart).
+    - type: bind
+      source: /var/lib/archipelago/netbird/config.yaml
+      target: /etc/netbird/config.yaml
+      options: [ro]
+
+  environment: []
+
+  # The server's config. {{HOST_IP}} is the node's primary host IP (the proxy's
+  # public origin is https on 8087 — the dashboard needs a secure context for
+  # OIDC PKCE, issue #15). {{secret:...}} are read 0600 from the secrets dir.
+  files:
+    - path: /var/lib/archipelago/netbird/config.yaml
+      overwrite: true
+      content: |
+        server:
+          listenAddress: ":80"
+          exposedAddress: "https://{{HOST_IP}}:8087"
+          stunPorts:
+            - 3478
+          metricsPort: 9090
+          healthcheckAddress: ":9000"
+          logLevel: "info"
+          logFile: "console"
+          authSecret: "{{secret:netbird-relay-auth-secret}}"
+          dataDir: "/var/lib/netbird"
+          auth:
+            issuer: "https://{{HOST_IP}}:8087/oauth2"
+            localAuthDisabled: false
+            signKeyRefreshEnabled: false
+            dashboardRedirectURIs:
+              - "https://{{HOST_IP}}:8087/nb-auth"
+              - "https://{{HOST_IP}}:8087/nb-silent-auth"
+            dashboardPostLogoutRedirectURIs:
+              - "https://{{HOST_IP}}:8087/"
+            cliRedirectURIs:
+              - "http://localhost:53000/"
+          store:
+            engine: "sqlite"
+            encryptionKey: "{{secret:netbird-store-encryption-key}}"
+
+  # TCP liveness on the management port. Binds at startup, stays green; an http
+  # check of /oauth2 would false-fail while the issuer warms up.
+  health_check:
+    type: tcp
+    endpoint: localhost:80
+    interval: 30s
+    timeout: 5s
+    retries: 10
+    start_period: 30s
+
+  metadata:
+    author: NetBird
+    icon: /assets/img/app-icons/netbird.svg
+    website: https://netbird.io
+    repo: https://github.com/netbirdio/netbird
+    license: BSD-3-Clause
+    tags:
+      - networking
+      - vpn
+      - wireguard
+      - mesh

apps/netbird/manifest.yml

@@ -0,0 +1,182 @@
+app:
+  id: netbird
+  name: NetBird
+  version: "2.38.0"
+  description: Self-hosted WireGuard mesh VPN control plane with dashboard, embedded identity provider, management API, signal, relay, and STUN. The user-facing entry point — a TLS proxy in front of the dashboard + server.
+  category: networking
+
+  # The user-facing launcher (app_id + container both "netbird", matching the
+  # runtime references + the live container so the orchestrator adopts it). This
+  # is the nginx that terminates TLS on 8087 and fans out to the dashboard +
+  # server by their short aliases on netbird-net.
+  container_name: netbird
+
+  container:
+    image: docker.io/library/nginx:1.27-alpine
+    pull_policy: if-not-present
+    network: netbird-net
+    # Self-signed TLS cert materialised before create — the dashboard needs a
+    # secure context (window.crypto.subtle / OIDC PKCE, issue #15), so the proxy
+    # serves HTTPS. Idempotent: kept as-is when crt+key already exist (a user
+    # accepts it once). SAN defaults to the host IP + 127.0.0.1 + localhost.
+    generated_certs:
+      - crt: /var/lib/archipelago/netbird/tls.crt
+        key: /var/lib/archipelago/netbird/tls.key
+
+  dependencies:
+    - app_id: netbird-server
+    - app_id: netbird-dashboard
+    - storage: 1Gi
+
+  resources:
+    memory_limit: 256Mi
+
+  security:
+    # cap-drop=ALL is applied by the orchestrator. nginx (master as root, drops
+    # workers) binds :443 — needs the worker-drop caps + NET_BIND_SERVICE.
+    capabilities: [CHOWN, DAC_OVERRIDE, SETGID, SETUID, NET_BIND_SERVICE]
+    readonly_root: false
+    network_policy: isolated
+
+  ports:
+    # 8087 publishes the TLS listener (container :443). HTTPS is required for the
+    # dashboard's secure context (issue #15).
+    - host: 8087
+      container: 443
+      protocol: tcp
+
+  volumes:
+    - type: bind
+      source: /var/lib/archipelago/netbird/nginx.conf
+      target: /etc/nginx/conf.d/default.conf
+      options: [ro]
+    - type: bind
+      source: /var/lib/archipelago/netbird/tls.crt
+      target: /etc/nginx/tls.crt
+      options: [ro]
+    - type: bind
+      source: /var/lib/archipelago/netbird/tls.key
+      target: /etc/nginx/tls.key
+      options: [ro]
+
+  environment: []
+
+  # The proxy config. {{NETWORK_GATEWAY}} is the netbird-net bridge gateway =
+  # Podman's aardvark DNS. nginx uses it as an explicit `resolver` with VARIABLE
+  # upstreams so it re-resolves container names per request — without it nginx
+  # pins a container IP at startup and 502s forever once that IP moves on a
+  # restart/reboot (issue #15, observed live on .198). Every #15 fix below
+  # (CORS $http_origin reflect, grpc pass, nb-auth/nb-silent-auth rewrite to
+  # index.html, /relay websocket) is preserved verbatim from the legacy config.
+  files:
+    - path: /var/lib/archipelago/netbird/nginx.conf
+      overwrite: true
+      content: |
+        server {
+            listen 443 ssl;
+            server_name _;
+
+            # netbird's dashboard needs a secure context (window.crypto.subtle for
+            # OIDC PKCE), so the proxy terminates TLS with a self-signed cert (#15).
+            ssl_certificate /etc/nginx/tls.crt;
+            ssl_certificate_key /etc/nginx/tls.key;
+
+            # Rootless Podman can hand a container a new IP across restarts/reboots.
+            # nginx resolves a literal upstream name ONCE at startup and caches it,
+            # so after the IP moves every request 502s with "host unreachable"
+            # (issue #15, observed live on .198: nginx pinned to a dead
+            # netbird-dashboard IP). Fix: point `resolver` at the netbird-net
+            # gateway (Podman's aardvark DNS) and use VARIABLE upstreams, which
+            # forces nginx to re-resolve the container names at request time.
+            resolver {{NETWORK_GATEWAY}} valid=10s ipv6=off;
+
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_http_version 1.1;
+
+            location ~ ^/(relay|ws-proxy/) {
+                set $nb_server netbird-server;
+                proxy_pass http://$nb_server:80;
+                proxy_set_header Upgrade $http_upgrade;
+                proxy_set_header Connection "upgrade";
+                proxy_read_timeout 1d;
+            }
+
+            location ~ ^/(api|oauth2)(/|$) {
+                # The dashboard is a SPA whose API/OIDC base URL is baked at build
+                # time to one host:port. A single box is reached via several
+                # addresses, so those fetches are cross-origin and the browser
+                # blocks them with no Access-Control-Allow-Origin (#15, live on
+                # .198). Reflect the caller's Origin and answer the CORS preflight.
+                if ($request_method = OPTIONS) {
+                    add_header Access-Control-Allow-Origin $http_origin always;
+                    add_header Access-Control-Allow-Credentials true always;
+                    add_header Access-Control-Allow-Methods "GET, POST, PUT, PATCH, DELETE, OPTIONS" always;
+                    add_header Access-Control-Allow-Headers "Authorization, Content-Type, Accept" always;
+                    add_header Access-Control-Max-Age 86400 always;
+                    add_header Content-Length 0;
+                    return 204;
+                }
+                add_header Access-Control-Allow-Origin $http_origin always;
+                add_header Access-Control-Allow-Credentials true always;
+                add_header Access-Control-Allow-Methods "GET, POST, PUT, PATCH, DELETE, OPTIONS" always;
+                add_header Access-Control-Allow-Headers "Authorization, Content-Type, Accept" always;
+                set $nb_server netbird-server;
+                proxy_pass http://$nb_server:80;
+            }
+
+            location ~ ^/(signalexchange\.SignalExchange|management\.ManagementService|management\.ProxyService)/ {
+                set $nb_server netbird-server;
+                grpc_pass grpc://$nb_server:80;
+                grpc_read_timeout 1d;
+                grpc_send_timeout 1d;
+            }
+
+            # OIDC callback routes are client-side SPA routes with NO prebuilt page
+            # in the dashboard bundle, so proxying them straight through 404s —
+            # which crashes the dashboard's auth init and shows "Unauthenticated"
+            # with dead buttons (#15, live on .198: /nb-auth + /nb-silent-auth
+            # returned 404). Serve index.html at these paths (URL unchanged) so
+            # react-oidc boots and completes the login / silent-SSO.
+            location ~ ^/(nb-auth|nb-silent-auth) {
+                set $nb_dashboard netbird-dashboard;
+                rewrite ^.*$ /index.html break;
+                proxy_pass http://$nb_dashboard:80;
+            }
+
+            location / {
+                set $nb_dashboard netbird-dashboard;
+                proxy_pass http://$nb_dashboard:80;
+            }
+        }
+
+  health_check:
+    type: tcp
+    endpoint: localhost:443
+    interval: 30s
+    timeout: 5s
+    retries: 5
+    start_period: 20s
+
+  interfaces:
+    main:
+      name: Dashboard
+      description: Manage your self-hosted NetBird mesh VPN
+      type: ui
+      port: 8087
+      protocol: https
+      path: /
+
+  metadata:
+    author: NetBird
+    icon: /assets/img/app-icons/netbird.svg
+    website: https://netbird.io
+    repo: https://github.com/netbirdio/netbird
+    license: BSD-3-Clause
+    tags:
+      - networking
+      - vpn
+      - wireguard
+      - mesh

core/archipelago/src/api/rpc/package/stacks.rs

@@ -696,6 +696,16 @@ fn immich_stack_app_ids() -> &'static [&'static str] {
     &["immich-postgres", "immich-redis", "immich"]
 }
 
+fn netbird_stack_app_ids() -> &'static [&'static str] {
+    // Dependency/startup order: the combined management/signal/relay server
+    // first (it owns the base64 relay/store secrets + the sqlite store, and is
+    // the OIDC issuer the others point at), then the dashboard SPA, then the
+    // user-facing TLS proxy ("netbird", which carries the self-signed cert +
+    // the templated nginx.conf and is the launcher). Mirrors the netbird
+    // startup_order in dependencies.rs.
+    &["netbird-server", "netbird-dashboard", "netbird"]
+}
+
 fn indeedhub_stack_app_ids() -> &'static [&'static str] {
     // Dependency order: backends + their generated secrets first, then the api
     // (owns indeedhub-jwt; reads the db/minio secrets the backends materialised),
@@ -1828,6 +1838,23 @@ impl RpcHandler {
 
     /// Install self-hosted NetBird (dashboard + combined management/signal/relay server).
     pub(super) async fn install_netbird_stack(&self) -> Result<serde_json::Value> {
+        // Manifest-driven path (#20 phase 4): render the 3-member stack from
+        // apps/netbird-*/manifest.yml via the orchestrator — dedicated
+        // netbird-net + network_aliases, base64 generated_secrets, a self-signed
+        // TLS cert (generated_certs) so the dashboard gets a secure context for
+        // OIDC PKCE (#15), and templated config.yaml/nginx.conf rendered from
+        // host facts + the netbird-net gateway. The manifests use the exact live
+        // container names, so on an existing node this ADOPTS the running stack
+        // rather than recreating it (the sqlite store + base64 keys are
+        // preserved — ensure_generated_secrets no-ops on existing files). Falls
+        // back to the legacy installer below only when the orchestrator doesn't
+        // know these app_ids (manifests not yet deployed to the node).
+        if let Some(orchestrated) =
+            install_stack_via_orchestrator(self, "netbird", netbird_stack_app_ids()).await?
+        {
+            return Ok(orchestrated);
+        }
+
         if let Some(adopted) = adopt_stack_if_exists(
             "netbird",
             "netbird",

core/archipelago/src/container/docker_packages.rs

@@ -691,16 +691,37 @@ fn extract_lan_address(ports: &[String]) -> Option<String> {
     None
 }
 
+/// netbird's dashboard launch URL: HTTPS on 8087 (the proxy terminates TLS —
+/// the dashboard needs a secure context for OIDC PKCE, issue #15) at the node's
+/// primary host IP so it's reachable from the LAN. Manifest-driven netbird no
+/// longer writes `dashboard.env`, so this is derived from host facts (the same
+/// `{{HOST_IP}}` the orchestrator bakes into the cert/config); it falls back to
+/// the static localhost mapping when the host IP can't be read. URL shape is
+/// identical to the legacy installer's, so the existing https reachability
+/// wrapper still applies.
 async fn netbird_configured_launch_url() -> Option<String> {
-    let env = tokio::fs::read_to_string("/var/lib/archipelago/netbird/dashboard.env")
+    if let Some(ip) = first_host_ip().await {
+        return Some(format!("https://{ip}:8087"));
+    }
+    PodmanClient::lan_address_for("netbird")
+}
+
+/// First address from `hostname -I` — the node's primary host IP. Mirrors the
+/// orchestrator's `detect_host_ip` so launch URLs match the cert/config the
+/// orchestrator renders for `{{HOST_IP}}`.
+async fn first_host_ip() -> Option<String> {
+    let out = tokio::process::Command::new("hostname")
+        .arg("-I")
+        .output()
         .await
         .ok()?;
-    env.lines()
-        .find_map(|line| line.strip_prefix("NETBIRD_MGMT_API_ENDPOINT="))
-        .map(str::trim)
-        .filter(|s| !s.is_empty())
+    if !out.status.success() {
+        return None;
+    }
+    String::from_utf8_lossy(&out.stdout)
+        .split_whitespace()
+        .next()
         .map(ToOwned::to_owned)
-        .or_else(|| PodmanClient::lan_address_for("netbird"))
 }
 
 async fn reachable_lan_address(app_id: &str, candidate: Option<String>) -> Option<String> {

core/archipelago/src/container/prod_orchestrator.rs

@@ -26,7 +26,7 @@
 use anyhow::{Context, Result};
 use archipelago_container::{
     AppManifest, ContainerRuntime as ContainerRuntimeTrait, ContainerState, ContainerStatus,
-    Dependency, GeneratedFile, HostFacts, ManifestError, ResolvedSource, SecretsProvider,
+    Dependency, HostFacts, ManifestError, ResolvedSource, SecretsProvider,
 };
 use async_trait::async_trait;
 use std::collections::{HashMap, HashSet};
@@ -1809,6 +1809,9 @@ impl ProdContainerOrchestrator {
         self.run_pre_start_hooks(&manifest.app.id).await?;
         self.ensure_bind_mount_sockets(manifest).await?;
         self.ensure_bind_mount_dirs(manifest).await?;
+        // Certs before files: a templated file may not need the cert, but the
+        // container's bind-mounts expect both present before create_container.
+        self.ensure_manifest_certs(manifest).await?;
         self.ensure_manifest_files(manifest).await?;
         self.apply_data_uid(manifest).await?;
         self.run_post_data_uid_hooks(&manifest.app.id).await?;
@@ -2750,7 +2753,14 @@ impl ProdContainerOrchestrator {
     async fn ensure_manifest_files(&self, manifest: &AppManifest) -> Result<HookOutcome> {
         let mut outcome = HookOutcome::Unchanged;
         for file in &manifest.app.files {
-            if ensure_generated_file(file)
+            // Render templated placeholders before comparing/writing so the
+            // idempotency check is against the FINAL bytes (not the template),
+            // otherwise a rendered file would be rewritten every reconcile.
+            let rendered = self
+                .render_file_placeholders(manifest, &file.content)
+                .await
+                .with_context(|| format!("rendering manifest file {}", file.path))?;
+            if ensure_rendered_file(&file.path, &rendered, file.overwrite)
                 .await
                 .with_context(|| format!("ensure manifest file {}", file.path))?
                 == HookOutcome::Rewritten
@@ -2760,23 +2770,185 @@ impl ProdContainerOrchestrator {
         }
         Ok(outcome)
     }
+
+    /// Substitute the allow-listed placeholders a manifest `GeneratedFile` may
+    /// carry. Keeps runtime-derived config (netbird's `config.yaml`/`nginx.conf`)
+    /// declarative instead of generated by per-app Rust:
+    /// - `{{HOST_IP}}` / `{{HOST_MDNS}}` — host facts (`hostname -I` / `.local`).
+    /// - `{{NETWORK_GATEWAY}}` — the gateway of the app's podman network, i.e.
+    ///   aardvark's DNS address. nginx uses it as an explicit `resolver` so it
+    ///   re-resolves container names per request instead of pinning a stale IP
+    ///   and 502-ing after a restart/reboot (issue #15). The network is ensured
+    ///   to exist first so the gateway is readable on a fresh install (this runs
+    ///   before `install_fresh`'s own `ensure_container_network`; both idempotent).
+    /// - `{{secret:NAME}}` — a `0600` secret read from the service-owned secrets
+    ///   dir (e.g. netbird's base64 relay/store keys). NEVER logged.
+    async fn render_file_placeholders(
+        &self,
+        manifest: &AppManifest,
+        content: &str,
+    ) -> Result<String> {
+        let mut out = content.to_string();
+        if out.contains("{{HOST_IP}}") || out.contains("{{HOST_MDNS}}") {
+            let facts = self.detect_host_facts();
+            out = out
+                .replace("{{HOST_IP}}", &facts.host_ip)
+                .replace("{{HOST_MDNS}}", &facts.host_mdns);
+        }
+        if out.contains("{{NETWORK_GATEWAY}}") {
+            self.ensure_container_network(manifest).await?;
+            let gw = self.network_gateway(manifest).await?;
+            out = out.replace("{{NETWORK_GATEWAY}}", &gw);
+        }
+        out = self.render_secret_placeholders(&out).await?;
+        Ok(out)
+    }
+
+    /// Replace every `{{secret:NAME}}` with the trimmed contents of
+    /// `<secrets_dir>/NAME`. `NAME` must be a bare filename (the same safety bar
+    /// as `secret_env`). The secret value is never placed in an error or log.
+    async fn render_secret_placeholders(&self, content: &str) -> Result<String> {
+        const OPEN: &str = "{{secret:";
+        let mut out = String::with_capacity(content.len());
+        let mut rest = content;
+        while let Some(start) = rest.find(OPEN) {
+            out.push_str(&rest[..start]);
+            let after = &rest[start + OPEN.len()..];
+            let end = after
+                .find("}}")
+                .ok_or_else(|| anyhow::anyhow!("unterminated {{secret:...}} placeholder"))?;
+            let name = &after[..end];
+            if name.is_empty() || name.contains('/') || name.contains("..") {
+                anyhow::bail!("invalid secret placeholder name '{name}' (must be a bare filename)");
+            }
+            let value = tokio::fs::read_to_string(self.secrets_dir.join(name))
+                .await
+                .map_err(|_| {
+                    // Do not surface the path-with-value or io detail beyond the name.
+                    anyhow::anyhow!("secret '{name}' referenced by a manifest file is missing")
+                })?;
+            out.push_str(value.trim());
+            rest = &after[end + 2..];
+        }
+        out.push_str(rest);
+        Ok(out)
+    }
+
+    /// The gateway IP of the app's podman network — aardvark's DNS resolver
+    /// address. Mirrors the legacy `netbird_net_resolver_ip`; falls back to
+    /// podman's usual first-pool gateway if the inspect can't be parsed (the
+    /// network was just ensured to exist, so this is a belt-and-braces default).
+    async fn network_gateway(&self, manifest: &AppManifest) -> Result<String> {
+        let network = manifest
+            .app
+            .container
+            .network
+            .as_deref()
+            .filter(|n| !n.is_empty() && !is_builtin_network_mode(n))
+            .ok_or_else(|| {
+                anyhow::anyhow!("{{NETWORK_GATEWAY}} used but app has no dedicated network")
+            })?;
+        let out = tokio::process::Command::new("podman")
+            .args([
+                "network",
+                "inspect",
+                network,
+                "--format",
+                "{{range .Subnets}}{{.Gateway}}{{end}}",
+            ])
+            .output()
+            .await
+            .with_context(|| format!("inspecting podman network {network} for gateway"))?;
+        let gw = String::from_utf8_lossy(&out.stdout).trim().to_string();
+        if !gw.is_empty() && gw.parse::<std::net::IpAddr>().is_ok() {
+            return Ok(gw);
+        }
+        tracing::warn!(
+            network,
+            "could not read network gateway; falling back to 10.89.0.1"
+        );
+        Ok("10.89.0.1".to_string())
+    }
+
+    /// Materialise manifest-declared self-signed TLS certs before the container
+    /// is created (so a bind-mounted cert path resolves to a real file). Skips an
+    /// entry whose crt+key already exist (idempotent / data-preserving). CN and
+    /// SAN templates are rendered against host facts; when omitted they default
+    /// to the node's host IP plus `127.0.0.1`/`localhost` so the cert is valid
+    /// however the box is reached locally. Mirrors the legacy
+    /// `ensure_netbird_tls_cert` (rsa:2048, 10-year, no per-app Rust).
+    async fn ensure_manifest_certs(&self, manifest: &AppManifest) -> Result<()> {
+        let facts = self.detect_host_facts();
+        let render = |s: &str| {
+            s.replace("{{HOST_IP}}", &facts.host_ip)
+                .replace("{{HOST_MDNS}}", &facts.host_mdns)
+        };
+        for cert in &manifest.app.container.generated_certs {
+            if tokio::fs::metadata(&cert.crt).await.is_ok()
+                && tokio::fs::metadata(&cert.key).await.is_ok()
+            {
+                continue;
+            }
+            if let Some(parent) = Path::new(&cert.crt).parent() {
+                create_dir_all_or_sudo(parent).await?;
+            }
+            if let Some(parent) = Path::new(&cert.key).parent() {
+                create_dir_all_or_sudo(parent).await?;
+            }
+            let cn = render(cert.common_name.as_deref().unwrap_or("{{HOST_IP}}"));
+            let san = if cert.sans.is_empty() {
+                format!("IP:{},IP:127.0.0.1,DNS:localhost", facts.host_ip)
+            } else {
+                cert.sans
+                    .iter()
+                    .map(|s| render(s))
+                    .collect::<Vec<_>>()
+                    .join(",")
+            };
+            let status = tokio::process::Command::new("openssl")
+                .args([
+                    "req",
+                    "-x509",
+                    "-newkey",
+                    "rsa:2048",
+                    "-nodes",
+                    "-keyout",
+                    &cert.key,
+                    "-out",
+                    &cert.crt,
+                    "-days",
+                    "3650",
+                    "-subj",
+                    &format!("/CN={cn}"),
+                    "-addext",
+                    &format!("subjectAltName={san}"),
+                ])
+                .status()
+                .await
+                .with_context(|| format!("running openssl for manifest cert {}", cert.crt))?;
+            if !status.success() {
+                anyhow::bail!("openssl failed to generate manifest cert {}", cert.crt);
+            }
+        }
+        Ok(())
+    }
 }
 
-async fn ensure_generated_file(file: &GeneratedFile) -> Result<HookOutcome> {
-    let path = Path::new(&file.path);
-    if let Ok(existing) = tokio::fs::read_to_string(path).await {
-        if existing == file.content || !file.overwrite {
+async fn ensure_rendered_file(path: &str, content: &str, overwrite: bool) -> Result<HookOutcome> {
+    let p = Path::new(path);
+    if let Ok(existing) = tokio::fs::read_to_string(p).await {
+        if existing == content || !overwrite {
             return Ok(HookOutcome::Unchanged);
         }
-    } else if path.exists() && !file.overwrite {
+    } else if p.exists() && !overwrite {
         return Ok(HookOutcome::Unchanged);
     }
 
-    let parent = path
+    let parent = p
         .parent()
-        .ok_or_else(|| anyhow::anyhow!("generated file path has no parent: {}", file.path))?;
+        .ok_or_else(|| anyhow::anyhow!("generated file path has no parent: {}", path))?;
     create_dir_all_or_sudo(parent).await?;
-    write_generated_file_atomically(path, &file.content).await?;
+    write_generated_file_atomically(p, content).await?;
     Ok(HookOutcome::Rewritten)
 }
 

core/archipelago/src/container/secrets.rs

@@ -66,6 +66,7 @@ fn ensure_one(dir: &Path, gs: &GeneratedSecret) -> Result<()> {
     match gs.kind {
         SecretGenKind::Hex16 => write_secret(&dir.join(&gs.name), &random_hex(16))?,
         SecretGenKind::Hex32 => write_secret(&dir.join(&gs.name), &random_hex(32))?,
+        SecretGenKind::Base64 => write_secret(&dir.join(&gs.name), &random_base64(32))?,
         SecretGenKind::Bcrypt => {
             let password = random_hex(BCRYPT_PASSWORD_BYTES);
             let hash = bcrypt::hash(&password, bcrypt::DEFAULT_COST)
@@ -92,6 +93,15 @@ fn random_hex(bytes: usize) -> String {
     hex::encode(buf)
 }
 
+/// `bytes` of entropy, standard base64 (with padding). For keys that a service
+/// base64-decodes to recover the raw bytes (e.g. netbird's store encryptionKey).
+fn random_base64(bytes: usize) -> String {
+    use base64::Engine as _;
+    let mut buf = vec![0u8; bytes];
+    rand::thread_rng().fill_bytes(&mut buf);
+    base64::engine::general_purpose::STANDARD.encode(buf)
+}
+
 /// Atomically write a `0600` secret: a temp file in the same dir (so the rename
 /// is atomic), fsynced, then renamed over the target.
 fn write_secret(path: &Path, value: &str) -> Result<()> {

core/container/src/lib.rs

@@ -8,8 +8,9 @@ pub mod runtime;
 pub use bitcoin_simulator::{BitcoinSimulationMode, BitcoinSimulator};
 pub use health_monitor::HealthMonitor;
 pub use manifest::{
-    AppInterface, AppManifest, BuildConfig, ContainerConfig, Dependency, DerivedEnv, GeneratedFile,
-    GeneratedSecret, HealthCheck, HookStep, HostCopy, HostFacts, LifecycleHooks, ManifestError,
+    AppInterface, AppManifest, BuildConfig, ContainerConfig, Dependency, DerivedEnv, GeneratedCert,
+    GeneratedFile, GeneratedSecret, HealthCheck, HookStep, HostCopy, HostFacts, LifecycleHooks,
+    ManifestError,
     ResolvedSource, ResourceLimits, SecretEnv, SecretGenKind, SecretsProvider, SecurityPolicy,
     Volume,
 };

core/container/src/manifest.rs

@@ -223,6 +223,19 @@ pub struct ContainerConfig {
     #[serde(default)]
     pub generated_secrets: Vec<GeneratedSecret>,
 
+    /// Self-signed TLS certificates the orchestrator materialises before the
+    /// container is created (so a bind-mounted cert path resolves to a real
+    /// file, not a stale/missing path). Like `generated_secrets`, this keeps an
+    /// app data-driven: a service that needs a secure context (e.g. netbird's
+    /// dashboard — OIDC PKCE / `window.crypto.subtle` only works over HTTPS,
+    /// issue #15) declares the cert here instead of relying on per-app Rust.
+    /// Idempotent: an entry whose `crt` and `key` already exist is left
+    /// untouched. SAN/CN templates are rendered against host facts at apply time.
+    ///
+    /// Example: `- { crt: /var/lib/archipelago/netbird/tls.crt, key: /var/lib/archipelago/netbird/tls.key }`
+    #[serde(default)]
+    pub generated_certs: Vec<GeneratedCert>,
+
     /// Rootless-mapped UID:GID applied to the container's data directory
     /// (the `bind`-mounted host path with `target` inside the container's
     /// data root) before creation. Mirrors `SPEC_DATA_UID`.
@@ -261,6 +274,11 @@ pub enum SecretGenKind {
     Hex16,
     /// 32 random bytes, lowercase hex (64 chars). Longer keys/cookies.
     Hex32,
+    /// 32 random bytes, standard base64 (44 chars incl. padding). For services
+    /// that require a base64-encoded key rather than hex — e.g. netbird's relay
+    /// `authSecret` and the SQLite store `encryptionKey`, which base64-decode
+    /// their configured value (hex would decode to the wrong bytes).
+    Base64,
     /// A random password and its bcrypt hash. `<name>` holds the bcrypt hash
     /// (what a server is configured with); the plaintext is stored alongside as
     /// `<name>.pw` for any client that must authenticate. `secret_env` injects
@@ -282,12 +300,31 @@ impl GeneratedSecret {
     /// (primary first). A consumer references one of these via `secret_env`.
     pub fn target_files(&self) -> Vec<String> {
         match self.kind {
-            SecretGenKind::Hex16 | SecretGenKind::Hex32 => vec![self.name.clone()],
+            SecretGenKind::Hex16 | SecretGenKind::Hex32 | SecretGenKind::Base64 => {
+                vec![self.name.clone()]
+            }
             SecretGenKind::Bcrypt => vec![self.name.clone(), format!("{}.pw", self.name)],
         }
     }
 }
 
+/// A self-signed TLS certificate materialised by the orchestrator. See
+/// [`ContainerConfig::generated_certs`]. `crt`/`key` are absolute host paths
+/// (typically under `/var/lib/archipelago/<app>/`) that the container
+/// bind-mounts read-only. `common_name` and `sans` are rendered against host
+/// facts (`{{HOST_IP}}`) at apply time; when omitted they default to the
+/// node's host IP plus `IP:127.0.0.1,DNS:localhost` so the cert is valid for
+/// however the box is reached locally.
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
+pub struct GeneratedCert {
+    pub crt: String,
+    pub key: String,
+    #[serde(default)]
+    pub common_name: Option<String>,
+    #[serde(default)]
+    pub sans: Vec<String>,
+}
+
 fn default_pull_policy() -> String {
     "if-not-present".to_string()
 }
@@ -665,6 +702,18 @@ impl AppManifest {
             }
         }
 
+        // generated_certs: crt/key must be non-empty absolute paths with no
+        // traversal (they become bind-mount sources, same safety bar as files).
+        for (i, c) in self.app.container.generated_certs.iter().enumerate() {
+            for (field, val) in [("crt", &c.crt), ("key", &c.key)] {
+                if val.is_empty() || !val.starts_with('/') || val.contains("..") {
+                    return Err(ManifestError::Invalid(format!(
+                        "container.generated_certs[{i}].{field} must be an absolute path with no '..', got '{val}'"
+                    )));
+                }
+            }
+        }
+
         // data_uid: if set, must look like "NNNNN:NNNNN".
         if let Some(u) = &self.app.container.data_uid {
             let parts: Vec<&str> = u.split(':').collect();
@@ -1711,6 +1760,7 @@ app:
             ],
             secret_env: vec![],
             generated_secrets: vec![],
+            generated_certs: vec![],
             data_uid: None,
         };
         let facts = HostFacts {
@@ -1762,6 +1812,7 @@ app:
                 },
             ],
             generated_secrets: vec![],
+            generated_certs: vec![],
             data_uid: None,
         };
         let p = MapSecretsProvider {
@@ -1799,6 +1850,7 @@ app:
                 secret_file: "bitcoin-rpc-password".to_string(),
             }],
             generated_secrets: vec![],
+            generated_certs: vec![],
             data_uid: None,
         };
         let p = MapSecretsProvider {

core/container/src/podman_client.rs

@@ -124,7 +124,9 @@ impl PodmanClient {
             "nginx-proxy-manager" => "http://localhost:8081",
             "fedimint-gateway" => "http://localhost:8176",
             "endurain" => "http://localhost:8080",
-            "netbird" => "http://localhost:8087",
+            // HTTPS: netbird's dashboard needs a secure context for OIDC PKCE
+            // (window.crypto.subtle), so the proxy serves TLS on 8087 (issue #15).
+            "netbird" => "https://localhost:8087",
             "electrs" | "archy-electrs-ui" => "http://localhost:50002",
             _ => return None,
         };
@@ -275,10 +277,18 @@ impl PodmanClient {
         // Build the container spec for the API
         let mut port_mappings = Vec::new();
         for port in &manifest.app.ports {
+            // Honour the manifest's protocol (default tcp). netbird's STUN port
+            // is 3478/udp; forcing tcp here would publish the wrong protocol and
+            // silently break relay discovery.
+            let protocol = match port.protocol.to_ascii_lowercase().as_str() {
+                "udp" => "udp",
+                "sctp" => "sctp",
+                _ => "tcp",
+            };
             port_mappings.push(serde_json::json!({
                 "container_port": port.container,
                 "host_port": port.host,
-                "protocol": "tcp",
+                "protocol": protocol,
             }));
         }