authentik: deploy outpost as worker-role container with dial-back

In authentik 2026.8.x the proxy-provider URL space (/outpost.goauthentik.io/*)
is served by the Rust worker binary, not the server — verified live: with a
tenant-matching Host header, /if/flow/... answers 200 on the server while
/auth/caddy still 404s. The outpost instance existed in the DB but no process
ever served it, so Caddy's forward_auth subrequests hit a 404 and browsers got
authentik's own Not-Found page instead of the authentication flow.

The new unit runs the same image as server/worker with Exec=worker and flips
into outpost mode via AUTHENTIK_HOST/AUTHENTIK_INSECURE/AUTHENTIK_TOKEN (the
token is read from the DB into the host .env at deploy time; it never enters
the repo). It dials back to core over websocket and serves forward-auth on its
own 9000. Deploy handler restarts only this unit — the rest of the stack is
untouched.

dankclaw/authentik/quadlet/authentik-outpost.container

@@ -0,0 +1,44 @@
+# Quadlet unit: Authentik outpost (rootless, boot-persistent).
+#
+# Install path on dankclaw: ~/.config/containers/systemd/authentik-outpost.container
+# Unit name: authentik-outpost.service (podman 5.x drops the container- prefix)
+#
+# In authentik 2026.8.x the proxy-provider URL space (/outpost.goauthentik.io/*)
+# is served by the Rust worker binary, not the server — verified live: with a
+# tenant-matching Host header, /if/flow/... answers 200 on the server while
+# /auth/caddy still 404s. This container runs the same image as the server and
+# worker units; Exec=worker selects the Rust worker role, and the
+# AUTHENTIK_HOST/AUTHENTIK_TOKEN env flips it into outpost mode: it dials back
+# to core over websocket (ws/outpost/<uuid>/) and serves forward-auth for Caddy
+# on its own 9000. No published port — Caddy reaches it by container DNS on
+# dankclaw_default; the token lives in the host .env, never in this repo.
+
+[Unit]
+Description=Authentik outpost container
+After=network.target authentik-postgres.service authentik-server.service
+Wants=authentik-server.service
+
+[Container]
+ContainerName=authentik-outpost
+Image=ghcr.io/goauthentik/server:2026.8.0
+Exec=worker
+Network=dankclaw_default
+EnvironmentFile=/home/dank/serverAppConfigs/dankclaw/.env
+Environment=AUTHENTIK_POSTGRESQL__HOST=authentik-postgres
+Environment=AUTHENTIK_POSTGRESQL__NAME=authentik
+Environment=AUTHENTIK_POSTGRESQL__USER=authentik
+Environment=AUTHENTIK_POSTGRESQL__PASSWORD=${AUTHENTIK_PG_PASS}
+Environment=AUTHENTIK_SECRET_KEY=${AUTHENTIK_SECRET_KEY}
+Environment=AUTHENTIK_HOST=https://auth.franksdank.cloud
+Environment=AUTHENTIK_INSECURE=false
+Environment=AUTHENTIK_TOKEN=${AUTHENTIK_OUTPOST_TOKEN}
+Volume=/home/dank/authentik/data:/data
+User=0:0
+
+[Service]
+EnvironmentFile=/home/dank/serverAppConfigs/dankclaw/.env
+Restart=always
+RestartSec=5
+
+[Install]
+WantedBy=default.target