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warning) The plan document (docs/plans/2026-05-07-s6-overlay-dynamic-subagent-gateways.md) intentionally retains its historical references to gosu — it describes the pre-s6 entrypoint as background for understanding the migration.		2026-05-24 18:05:33 -07:00
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cont-init.d	feat(docker): per-profile s6 supervision + container-restart reconciliation	2026-05-24 18:05:33 -07:00
s6-rc.d	feat(docker)!: replace tini with s6-overlay as PID 1	2026-05-24 18:05:33 -07:00
entrypoint.sh	feat(docker)!: replace tini with s6-overlay as PID 1	2026-05-24 18:05:33 -07:00
main-wrapper.sh	feat(docker): remove gosu from bundled image; s6-setuidgid handles privilege drop	2026-05-24 18:05:33 -07:00
SOUL.md	feat(docker): add Docker container for the agent (salvage #1841) (#3668)	2026-03-28 22:21:48 -07:00
stage2-hook.sh	feat(docker): per-profile s6 supervision + container-restart reconciliation	2026-05-24 18:05:33 -07:00