archipelago 069bc4a561 feat(container): bitcoin-ui pre-start hook renders nginx.conf from embedded template
Replaces the first-boot-containers.sh sed/envsubst approach with a
Rust-native render step bound into the ContainerOrchestrator lifecycle.

- New container::bitcoin_ui module: embeds the nginx.conf template via
  include_str!, reads the plaintext RPC password from
  /var/lib/archipelago/secrets/bitcoin-rpc-password, substitutes
  {{BITCOIN_RPC_AUTH}} with base64(archipelago:<password>), and atomic-
  writes (tmp + rename) to /var/lib/archipelago/bitcoin-ui/nginx.conf.
  Idempotent: byte-compares before writing so unchanged input is a
  no-op (no inode churn, no restart cascade).
- ProdContainerOrchestrator gains run_pre_start_hooks(app_id) returning
  HookOutcome::{Rewritten, Unchanged}. Fires in install_fresh before
  create_container, and in ensure_running: on Running + Rewritten
  triggers a restart; on Stopped re-renders then starts.
- bitcoin-ui Dockerfile no longer COPYs a default.conf; the file now
  arrives via runtime bind-mount of the rendered config. If the bind-
  mount is ever missing, nginx starts with no site configured and
  returns 404 everywhere — safe failure vs. serving upstream RPC with
  a stale Authorization header.
- apps/{bitcoin,electrs,lnd}-ui/manifest.yml land as first-class
  manifests. bitcoin-ui declares the bind-mount target and a dependency
  on bitcoin-core; electrs-ui and lnd-ui declare their own deps and
  health checks.
- 8 new unit tests on the render fn (idempotency, rotation, trimming,
  missing/empty secret, template invariants) plus an integration test
  asserting install(bitcoin-ui) actually lands a substituted nginx.conf
  on disk via the hook. 39/39 container:: tests pass
  (test_parse_image_versions pre-existing failure unchanged, out of
  scope).
2026-04-23 02:19:52 -04:00
..