flex-auth's flex-auth-ops-warden pin (FLEX-WP-0016) TokenReviews the caller and
binds resource.system: ops-warden to system:serviceaccount:ops-warden:ops-warden.
policy.py posted /v1/check with no Authorization header, so the pin logs
"caller authentication warning" and can only run callerAuth.mode: warn — which,
under ADHOC-2026-08-17-T01, is exactly what blocks policy.enabled: true.
- policy.caller_auth (none | file | env | command) + src/warden/caller_identity.py:
token resolved per call, never cached, written, or logged (ADR-0002)
- both check_sign_policy and check_fetch_policy attach the bearer header; an
unobtainable token fails closed rather than retrying anonymously
- scripts/check_policy_caller_identity.py: read-only gate, prints length and a
truncated fingerprint only, distinguishes 401 (audience/binding) from 403
- example config: caller_auth block, and flex_auth_url corrected — it pointed at
flex-auth.flex-auth.svc, a Service that does not exist
- WARDEN-WP-0031, PolicyGatedSigning caller-identity section and flip sequence
Default stays mode: none, so behaviour is unchanged until an operator opts in.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Adds transparent, policy-gated, audited proxy of a non-SSH credential
through `warden access`, for exec_capable lanes. Three guardrails in code:
- G1 caller identity: runs the owner's tool with the caller's own env;
warden injects no token of its own (caller_auth_present check).
- G2 transit-only: --fetch inherits stdout (never PIPE) so the value
never enters warden's memory or any log; --exec injects into the child
env only. Audit (access-audit.log) is metadata-only.
- G3 policy gate: check_fetch_policy runs before any fetch; with
policy.enabled=false the proxy refuses unless --no-policy is given.
resolve_fetch_command refuses unresolved <…> placeholders rather than
guess owner-side names. New warden/proxy.py + policy.check_fetch_policy;
tests/test_proxy.py asserts all three guardrails. 168 passed, lint clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add policy.py client that calls flex-auth /v1/check before sign/issue when
policy.enabled is true. Record policy_decision_id in signatures.log. Default
off preserves existing inventory-only behavior. Document production OpenBao
health probe and update config/wiki references.
