wmantly
8f0158eb9f
See CHANGELOG.md for the full breakdown. Summary:
- ldap_tunnel.go: serves a local unix socket for SSSD/PAM and relays raw
bytes to the SSO over the existing WSS channel (ldap_tunnel messages);
the agent never parses LDAP (DESIGN.md §4). Adds safeWriter to
serialize WebSocket writes now that telemetry, heartbeat, the LDAP
tunnel, and command responses all share one connection.
- secrets.go: renders local templates ({{ bao "path#key" }} placeholders)
by fetching node-scoped values from the SSO and writing the target
atomically at 0600, on a signed render_secrets command (DESIGN.md §5).
demo/ has minimal bash + Node consumers of the rendered file.
- iam.go: applies signed node IAM pushes -- sudoers.d rules (visudo -c
validated), SSH AuthorizedKeysCommand keys, /etc/security/access.conf,
and revocation via sss_cache -E + pkill -u (DESIGN.md §6).
- Capability reporting: the agent's enabled capabilities ride along in
its discovery frame so the SSO can show them in the Directory.
- DESIGN.md: the v2 protocol design this implements.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
79 lines
3.1 KiB
Plaintext
79 lines
3.1 KiB
Plaintext
# theta-agent configuration file
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# Default location: /etc/theta42/agent.yml
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server_url: "https://sso.example.com"
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# This agent's own token. Leave EMPTY when installing with a join key -- the
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# agent fills it in itself once the SSO enrolls it. The server records only a
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# hash and rejects any token it did not issue, so a locally invented value will
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# never connect.
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auth_token: ""
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# The one credential you need to add a host. Used only while auth_token is
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# empty: the SSO exchanges it for this agent's own token + public key on first
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# connect, and the agent then blanks this line. Get one from the SSO
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# (Directory -> Install Agent, or POST /api/agent/join-keys).
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join_key: ""
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# Base64 of the SSO's RAW 32-byte Ed25519 public key (NOT a PEM body). Filled in
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# automatically when enrolling with a join key; set it by hand only if you
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# pre-registered this host.
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#
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# Required for any high-risk command. Without it the agent still reports
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# telemetry, but REFUSES reboot / service_restart / configure_ldap /
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# arbitrary_bash / update_binary, because it has no way to verify them.
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public_key: ""
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location: "default" # Location identifier (e.g., site, datacenter) for naming
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# Local LDAP byte-pump socket (DESIGN.md §4). The agent forwards raw LDAP bytes
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# from this socket to the SSO, which relays them into its OpenLDAP. The agent
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# never parses LDAP. Point SSSD at it with:
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# ldap_uri = ldapi://%2frun%2ftheta%2fldap.sock
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ldap_socket: "/run/theta/ldap.sock"
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capabilities:
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# ---------------------------------------------------------
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# Basic Capabilities (Safe, read-only or infrastructure management)
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# ---------------------------------------------------------
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# Push CPU, RAM, GPU, and ZFS metrics to the SSO Manager
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telemetry: true
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# Allow the SSO Manager to push down SSSD and SSH keys configuration
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configure_ldap: true
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# Serve the local LDAP byte-pump socket for SSSD/PAM (DESIGN.md §4)
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ldap_tunnel: true
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# Render OpenBao secrets to local files from /etc/theta/templates (DESIGN.md §5)
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secrets: true
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# Apply node IAM (sudo rules, SSH keys, access control, revocation) (DESIGN.md §6)
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iam: true
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# Secret templates to render (DESIGN.md §5). Each maps a local template to a
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# target file and an optional post-render reload. The template embeds secrets as
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# {{ bao "secret/data/nodes/<node-id>/<name>#<key>" }}.
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# secrets:
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# - template: /etc/theta/templates/db.env.tpl
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# target: /etc/theta/db.env
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# reload: systemctl reload app
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# ---------------------------------------------------------
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# Advanced Capabilities (High risk, remote operations)
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# ---------------------------------------------------------
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# Allow remote system reboots via the SSO Manager
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reboot: false
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# Allow restarting, starting, or stopping specific systemd services.
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# Must be an explicit list of allowed service names.
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# Example: ["gitea", "nginx", "docker"]
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# Setting to true or [] denies all.
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service_control: []
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# CRITICAL: Allow the execution of raw bash scripts sent from the SSO Manager.
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# Useful for GitOps deployments, but allows remote code execution.
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arbitrary_bash: false
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