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4686efd8c8
The unified agent's Linux installer only offered the root profile, and the docs called non-root unsupported. That default is the most-cited reason security-conscious evaluators reject Pulse without trying it. install.sh gains --least-privilege: the service runs as a dedicated nologin pulse-agent system user with every existing hardening directive, no LXC-attach ambient capabilities, docker-group membership for socket reads, and refusal (not silent root fallback) on appliance platforms, non-systemd init systems, and --enable-commands. Optional --grant-smart and --grant-pct restore the only two collectors that need elevation through visudo-validated exact-command sudoers rules and root-owned wrappers the agent reaches via new absolute-path-only PULSE_SMARTCTL_PATH / PULSE_PCT_PATH overrides; the pct grant covers pct list and pct df only and can never widen into pct exec. --update preserves the profile and its grants by reading the installed unit. The agent now authors a privilege block in its report (effective root, service user, active helpers), carried through models into the fleet doctor as a descriptive field: Agent Doctor shows the profile and its helpers instead of presenting intentionally absent collectors as a fault, and a least-privilege agent can never be marked unhealthy on that evidence alone. |
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