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hermes-agent/ansible/roles/fleet_mtls_certs/defaults/main.yml
Alexander Whitestone 91faf6f956
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feat: A2A auth — mutual TLS between fleet agents
Implements mutual TLS for secure agent-to-agent communication (#806).

- scripts/gen_fleet_ca.sh: generate fleet CA (4096-bit RSA, 10-year)
- scripts/gen_agent_cert.sh: per-agent cert signed by fleet CA (timmy, allegro, ezra)
- agent/a2a_mtls.py: A2AServer requiring client cert verification (CERT_REQUIRED),
  build_server_ssl_context / build_client_ssl_context helpers, server_from_env()
- ansible/roles/fleet_mtls_certs/: distribute CA + per-agent certs to fleet nodes,
  write /etc/hermes/a2a.env, notify hermes-a2a service on change
- ansible/fleet_mtls.yml + ansible/inventory/fleet.ini.example: playbook + example inventory
- tests/agent/test_a2a_mtls.py: 11 tests — authorized agent accepted (200/202),
  self-signed cert rejected, no-cert rejected, lifecycle, env-var wiring

Fixes #806

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-21 13:28:28 -04:00

22 lines
939 B
YAML

---
# Default paths on the *control node* where certs are read from.
# Override these in your inventory / group_vars as needed.
# Fleet CA certificate (public; safe to push to all nodes)
fleet_mtls_ca_cert_src: "{{ lookup('env', 'HOME') }}/.hermes/pki/ca/fleet-ca.crt"
# Per-agent cert/key source dir on the control node.
# Expected layout: <fleet_mtls_agent_certs_dir>/<agent_name>/<agent_name>.{crt,key}
fleet_mtls_agent_certs_dir: "{{ lookup('env', 'HOME') }}/.hermes/pki/agents"
# Remote destination paths on the fleet node
fleet_mtls_remote_pki_dir: "/etc/hermes/pki"
fleet_mtls_remote_ca_dir: "{{ fleet_mtls_remote_pki_dir }}/ca"
fleet_mtls_remote_agent_dir: "{{ fleet_mtls_remote_pki_dir }}/agent"
# The agent name to deploy (set per-host in inventory, e.g. timmy / allegro / ezra)
fleet_mtls_agent_name: "{{ inventory_hostname_short }}"
# Hermes service name (for reload notification)
fleet_mtls_hermes_service: "hermes-a2a"