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https://github.com/NousResearch/hermes-agent.git
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06c729706f
Unit-test flag stripping without Docker, and assert the image shim rejects the rc.init '-g: not found' restart loop from #66679.
90 lines
3.4 KiB
Python
90 lines
3.4 KiB
Python
"""Runtime smoke test for the Docker tini compatibility shim (#34192, #66679).
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Build the real image and verify:
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1. /usr/bin/tini exists as an executable shim (not a bare symlink to
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/init — that forwarded tini's ``-g`` into s6 and boot-looped)
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2. The actual ENTRYPOINT is /init (s6-overlay), not /usr/bin/tini
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3. Legacy ``tini -g -- <cmd>`` entrypoints boot without
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``rc.init: -g: not found``
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"""
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from __future__ import annotations
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import subprocess
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def test_tini_compat_shim_exists(built_image: str) -> None:
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"""/usr/bin/tini must be an executable shim script.
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Regression for #34192 / #66679: orchestration templates (e.g.
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Hostinger's 'Hermes WebUI' catalog, NAS compose projects that keep
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an old entrypoint across image updates) still pin /usr/bin/tini as
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the entrypoint, often with ``-g --``. The shim must exist *and*
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strip those flags before exec'ing /init.
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"""
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r = subprocess.run(
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["docker", "run", "--rm", "--entrypoint", "sh",
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built_image, "-c",
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'test -x /usr/bin/tini && '
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# Must NOT be a raw symlink to /init — that reintroduces #66679.
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'if [ -L /usr/bin/tini ]; then '
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' target="$(readlink -f /usr/bin/tini)"; '
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' test "$target" != "/init"; '
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'fi && '
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'head -n1 /usr/bin/tini | grep -q "^#!"'],
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capture_output=True, text=True, timeout=60,
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)
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assert r.returncode == 0, (
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f"/usr/bin/tini is not a usable tini shim: "
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f"stdout={r.stdout[-500:]!r} stderr={r.stderr[-500:]!r}"
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)
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def test_entrypoint_is_init_not_tini(built_image: str) -> None:
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"""The image's actual ENTRYPOINT must be /init (s6-overlay).
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The tini shim is only for legacy external wrappers; the image's own
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runtime must continue to use the canonical /init.
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"""
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r = subprocess.run(
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["docker", "inspect", built_image,
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"--format", "{{json .Config.Entrypoint}}"],
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capture_output=True, text=True, timeout=30,
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)
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assert r.returncode == 0, f"docker inspect failed: {r.stderr}"
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entrypoint = r.stdout.strip()
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assert "/init" in entrypoint, (
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f"ENTRYPOINT is not /init: {entrypoint!r}"
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)
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# The entrypoint array should be ["/init", "/opt/hermes/docker/main-wrapper.sh"]
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# /usr/bin/tini should NOT be in the entrypoint.
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assert "tini" not in entrypoint.lower(), (
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f"ENTRYPOINT references tini instead of /init: {entrypoint!r}"
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)
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def test_legacy_tini_g_entrypoint_does_not_boot_loop(built_image: str) -> None:
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"""``docker run --entrypoint /usr/bin/tini … -g -- --help`` must work.
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Exact failure from #66679: after update, NAS templates still invoke
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``/usr/bin/tini -g -- …``. The old symlink turned that into
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``/init -g -- …``, rc.init tried to exec ``-g``, and the container
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restart-looped. The shim must strip ``-g`` / ``--`` and reach hermes.
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"""
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r = subprocess.run(
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[
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"docker", "run", "--rm",
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"--entrypoint", "/usr/bin/tini",
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built_image,
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"-g", "--", "--help",
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],
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capture_output=True, text=True, timeout=120,
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)
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combined = r.stdout + r.stderr
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assert "-g: not found" not in combined, (
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f"tini -g leaked into rc.init (boot-loop regression):\n{combined[-3000:]}"
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)
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assert r.returncode == 0, (
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f"legacy tini -g -- --help failed (exit {r.returncode}):\n"
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f"stdout={r.stdout[-2000:]!r}\nstderr={r.stderr[-2000:]!r}"
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)
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