hermes-agent/tools/environments
Ben 4b4c36cb61
feat(docker): remove gosu from bundled image; s6-setuidgid handles privilege drop
The s6-overlay migration replaced every runtime use of gosu with
s6-setuidgid (in stage2-hook.sh, main-wrapper.sh, per-service run
scripts, and cont-init.d hooks), but the gosu binary itself was still
being copied into the image from tianon/gosu, and several comments
across the repo still pointed to it.

Image changes:
- Drop the FROM tianon/gosu:1.19-trixie AS gosu_source stage
- Drop the COPY --from=gosu_source /gosu /usr/local/bin/ layer
- Net: one fewer base-image pull, ~12-15 MB layer eliminated

Documentation/comment refresh (no behavior change):
- Dockerfile: update root-user rationale comment + cont-init.d comment
- docker/main-wrapper.sh: drop "pre-s6 contract (gosu drop)" reference
- docker-compose.yml: update UID/GID remap comment
- .hadolint.yaml: update DL3002 ignore rationale
- website/docs/user-guide/docker.md: privilege-drop helper is s6-setuidgid now
- hermes_cli/config.py: docker_run_as_host_user docstring

tools/environments/docker.py runs *arbitrary user images* via the
terminal backend, not the bundled Hermes image. It still needs SETUID/
SETGID caps so user images that use gosu/su/s6-setuidgid all work.
Renamed the cap-list constant _GOSU_CAP_ARGS → _PRIVDROP_CAP_ARGS and
updated comments to list s6-setuidgid alongside the others as examples.
The matching test (test_security_args_include_setuid_setgid_for_gosu_drop
→ test_security_args_include_setuid_setgid_for_privdrop) was renamed
and its docstring updated; behavior is unchanged.

Verification:
- hadolint clean against .hadolint.yaml
- shellcheck clean against all docker/ shell scripts
- Image rebuilt successfully (sha 1a090924ccea)
- Docker harness: 19 passed in 41.87s (every Phase 0 test + Phase 4
  per-profile-gateway lifecycle + container-restart reconciliation)
- tests/tools/test_docker_environment.py: 23 passed (rename did not
  break test discovery; pre-existing unrelated mock warning)

The plan document (docs/plans/2026-05-07-s6-overlay-dynamic-subagent-gateways.md)
intentionally retains its historical references to gosu — it describes
the pre-s6 entrypoint as background for understanding the migration.
2026-05-24 18:05:33 -07:00
..
__init__.py docs: align terminal-backend count and naming across docs and code 2026-05-05 13:44:09 -07:00
base.py perf(terminal): adaptive subprocess poll cuts ~195ms off every tool call (#29006) 2026-05-19 20:02:52 -07:00
daytona.py fix(daytona): migrate legacy-sandbox lookup to cursor-based list() (#24587) 2026-05-12 16:31:46 -07:00
docker.py feat(docker): remove gosu from bundled image; s6-setuidgid handles privilege drop 2026-05-24 18:05:33 -07:00
file_sync.py fix: guard yaml.safe_load, flock unlock, TOCTOU races, and atomic writes 2026-05-19 00:12:41 -07:00
local.py fix(windows): drop duplicate creationflags kwarg in LocalEnvironment._run_bash 2026-05-19 23:17:52 -04:00
managed_modal.py feat(environments): unified spawn-per-call execution layer 2026-04-08 17:23:15 -07:00
modal.py fix(async): close unscheduled coroutines in all threadsafe bridges (#26584) 2026-05-15 14:00:01 -07:00
modal_utils.py fix: follow-up for salvaged PR #10854 2026-04-16 06:42:45 -07:00
singularity.py feat(environments): unified spawn-per-call execution layer 2026-04-08 17:23:15 -07:00
ssh.py fix(ssh): keep bulk sync extraction scoped to .hermes 2026-05-21 19:17:51 -07:00
vercel_sandbox.py feat(security): supply-chain advisory checker + lazy-install framework + tiered install fallback (#24220) 2026-05-12 01:02:25 -07:00