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The Docker backend docs claim "Single persistent container — ONE long- lived container shared across sessions, /new, /reset, and delegate_task subagents. Stopped/removed on shutdown." In practice the code only honored that contract within a single Python process via the in-memory \`_active_environments[task_id]\` cache. Every \`hermes chat\` invocation spawned a fresh \`hermes-<hex>\` container; older containers piled up in \`Exited\` state and accumulated until manual \`docker rm\` (issue #20561). Three root causes, all addressed by this commit: 1. No cross-process container discovery. 2. \`cleanup()\` used fire-and-forget \`subprocess.Popen("... &", shell=True)\` which raced with parent-process exit — when Python exited promptly the detached shell child got killed mid-\`docker stop\`, leaving stopped containers behind. 3. The \`docker rm\` step in cleanup was gated on \`not self._persistent\` (the bind-mount-persistence flag). Default config sets \`container_persistent: true\`, so the default happy path skipped \`rm\` entirely — even when the user explicitly didn't want cross-process reuse, containers leaked. Fix: * Add \`DockerEnvironment.__init__(persist_across_processes=True)\`. When true, init probes \`docker ps -a --filter label=hermes-agent=1 --filter label=hermes-task-id=<task> --filter label=hermes-profile=<profile>\` and reuses a matching container (running → attach; stopped → \`docker start\` → attach; \`docker start\` failure → fall through to a fresh \`docker run\`). Multiple matches prefer the running one, with the stragglers left for the orphan reaper (next commit) to clean up. * Rewrite \`cleanup()\`. Uses \`subprocess.run(..., timeout=30)\` on a daemon \`threading.Thread\`, not the racy \`Popen(... &)\`. The \`_persistent\` guard is dropped on the \`rm\` step — \`rm\` now runs whenever \`persist_across_processes\` is false, regardless of the bind-mount-persistence setting. The leak class is gone in all combinations. * Add \`wait_for_cleanup(timeout)\`. \`tools/terminal_tool.py\`'s atexit hook calls this on every active env, blocking up to 15s for the cleanup thread before interpreter exit. Without this, \`hermes /quit\` raced the daemon-thread teardown and dropped the stop/rm work. * New config \`terminal.docker_persist_across_processes\` (default \`true\` — restores the documented contract). Set \`false\` for hard per-process isolation. Wired through all four config-bridge sites (cli.py env_mappings, gateway/run.py _terminal_env_map, hermes_cli/config.py _config_to_env_sync, tests/conftest.py env-strip list); regression-pinned by \`test_docker_persist_across_processes_is_bridged_everywhere\` matching the existing pattern for docker_run_as_host_user / docker_env. Reuse intentionally does NOT compare image / mounts / resources — only the labels. Operators changing those settings should set \`docker_persist_across_processes: false\` (or \`docker rm -f\` the labeled container) to force a fresh start. This keeps the probe cheap and the failure mode obvious. Coverage: 12 new unit tests in tests/tools/test_docker_environment.py covering reuse paths (running, stopped, fallback, opt-out, duplicate preference) and cleanup behavior (persist-mode no-rm, opt-out always-rm, no-Popen, wait_for_cleanup semantics, partial-init safety). Plus one config-bridge regression pin. Refs #20561 |
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| .. | ||
| __init__.py | ||
| base.py | ||
| daytona.py | ||
| docker.py | ||
| file_sync.py | ||
| local.py | ||
| managed_modal.py | ||
| modal.py | ||
| modal_utils.py | ||
| singularity.py | ||
| ssh.py | ||