Jon Chery
d9978693f4
Research domains (delegated to ci-researcher x2, codebase-grounded): - golang.org/x/crypto/ssh v0.54.0: API surface, Ed25519 keygen, TOFU via knownhosts.New, file upload via session heredoc (no SFTP dep) - /etc/os-release: confirmed ID= values (ubuntu/debian/alpine/pve), parsing approach, fallback strategy - Proxmox VE 8/9: pveum syntax (space-separated --privs), orca@pam realm (not @pve), OrcaOperator role, sudoers with NOEXEC on pct/qm, pvesh excluded (API execute bypasses NOEXEC) - Codebase: 12 files to modify/create, 6 reuse opportunities, 12 pitfalls Persona roster updated: data-engineer + security-engineer reactivated, devops-engineer deactivated. ARCHITECTURE.md addendum with AD-017..021. ---ci--- project: orca phase: 0 milestone: v0.6 status: research ---/ci---
641 lines
36 KiB
Markdown
641 lines
36 KiB
Markdown
# Architecture: Orca
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## System Overview
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Orca is a single-binary, offline-first orchestration engine. The system consists
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of three logical layers (CLI, Daemon, Engine) compiled into one `orca` binary
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and selected via subcommands. v0.2 adds a **cross-node transport layer** (mTLS)
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and a **dispatcher** for multi-node job execution.
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```
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┌─────────────────────────────────────────────────────────────────────────────┐
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│ orca (single binary, v0.2) │
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├─────────────────────────────────────────────────────────────────────────────┤
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│ CLI Layer (Cobra) │
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│ ├── orca version │
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│ ├── orca init # local node bootstrap │
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│ ├── orca cert {init,join,renew,show} # NEW (P01) │
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│ ├── orca status │
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│ ├── orca node {join,leave,list} # join = mTLS handshake (P01) │
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│ │ └── orca node list --watch # NEW iter.Seq (P04) │
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│ ├── orca job {run,list,stop,logs} │
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│ │ └── orca job list --watch # NEW iter.Seq (P04) │
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│ ├── orca doctor # NEW (P01) — diagnostics │
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│ │ ├── orca doctor cert │
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│ │ ├── orca doctor network │
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│ │ └── orca doctor db │
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│ └── orca daemon │
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├─────────────────────────────────────────────────────────────────────────────┤
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│ Daemon Layer (net/http over h2c, mTLS in P01) │
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│ ├── /healthz (liveness) │
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│ ├── /readyz (readiness) │
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│ ├── /v1/jobs/* (job control API) │
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│ ├── /v1/nodes/* (node registry API) │
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│ ├── /v1/tasks/* (task lifecycle API) │
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│ ├── /orca.v1.Dispatch/... # NEW (P02) — cross-node dispatch │
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│ └── /orca.v1.Register/... # NEW (P02) — peer join ack │
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├─────────────────────────────────────────────────────────────────────────────┤
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│ Transport Layer (NEW — internal/transport) │
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│ ├── mTLS client (dialer pool per peer) │
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│ ├── mTLS server config (TLS 1.3 only, AEAD allowlist) │
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│ ├── Retry+backoff (exponential, jittered, capped) │
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│ └── Graceful disconnect (ctx-aware Conn.Close) │
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├─────────────────────────────────────────────────────────────────────────────┤
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│ Core Engine │
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│ ├── Node Registry (in-memory + SQLite persistence) │
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│ ├── Task Executor (os/exec with WaitDelay, Go 1.25+) │
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│ ├── Job Scheduler (single-node FIFO; bin-pack P02) │
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│ ├── Dispatcher # NEW internal/engine/dispatcher.go │
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│ │ ├── Local decision (does this job fit on this node?) │
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│ │ ├── Remote dispatch (POST to peer via transport) │
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│ │ └── Streaming callback (iter.Seq[DispatchResult] for CLI) │
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│ ├── Security Manager # NEW internal/security (P01) │
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│ │ ├── CA lifecycle (init, fingerprint, sign CSR) │
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│ │ ├── Server cert lifecycle (issue, renew, rotate) │
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│ │ ├── mTLS config builder │
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│ │ └── Cert store (filesystem + SQLite metadata) │
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│ └── Audit Logger (log/slog JSON handler) │
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├─────────────────────────────────────────────────────────────────────────────┤
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│ State Store (modernc/sqlite, CGO-free) │
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│ ~/.orca/orca.db │
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│ ├── nodes, jobs, tasks, audit_log (v0.1) │
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│ └── certs # NEW (P01) — CA + server certs │
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└─────────────────────────────────────────────────────────────────────────────┘
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```
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## Component Details
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### 1. CLI Layer (`cmd/orca`, `internal/cli`)
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- **Framework**: Cobra (industry standard, familiar to operators)
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- **v0.1 subcommands**: `version`, `init`, `status`, `node`, `job`, `daemon`
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- **v0.2 additions (P01)**: `orca cert {init,join,renew,show}`
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- **v0.2 additions (P04)**: `--watch` flag on `orca job list` and `orca node list`
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- **v0.2 additions (P01)**: `orca doctor` subcommand (see §5 below)
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- **Output**: Human-readable by default; `--json` flag for machine consumption
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- **Discovery**: All subcommands self-document via Cobra's auto-generated help
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- **Watch semantics (P04)**: `--watch` consumes `iter.Seq[Job|Node]`, exits on
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ctrl-c (via `signal.NotifyContext`), refreshes on internal change events.
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### 2. Daemon Layer (`internal/daemon`)
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- **Server**: `net/http` with `http.ServeMux` (no external router)
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- **TLS (P01)**: `crypto/tls` with `MinVersion=tls.VersionTLS13` and
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AEAD cipher allowlist
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(`TLS_AES_256_GCM_SHA384`, `TLS_CHACHA20_POLY1305_SHA256`,
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`TLS_AES_128_GCM_SHA256`)
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- **Ports**: Configurable (default `:8443` for API+mTLS, `:8080` for health)
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- **Graceful Shutdown**: `signal.NotifyContext` with SIGINT/SIGTERM
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- **v0.2 endpoints (P02)**:
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- `POST /orca.v1.Dispatch/Submit` — receive cross-node job submission
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- `POST /orca.v1.Dispatch/Status` — query dispatched job status
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- `POST /orca.v1.Register/Hello` — peer join ack (used during `orca node join`)
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### 3. Transport Layer (`internal/transport`, NEW in P01/P02)
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- **Client**: `http.Client` with `http.Transport.TLSClientConfig` populated
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from `internal/security.NewClientTLSConfig`
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- **Server**: `http.Server.TLSConfig` populated from
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`internal/security.NewServerTLSConfig`
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- **Retry policy**: exponential backoff with jitter (start 100ms, x2, cap 5s,
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max 5 attempts); only idempotent verbs (`GET`, `HEAD`, `OPTIONS`) are
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retried automatically; `POST` retries require an explicit
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`X-Orca-Idempotency-Key` header
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- **Conn lifecycle**: `context.Context`-aware dials and reads; graceful
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`Close` on `ctx.Done()`
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- **Peer dial pool**: small `sync.Map` of `peerID → *http.Client` to reuse
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TLS handshakes (TCP keep-alive) within a session
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### 4. Core Engine (`internal/engine`)
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- **Node Registry**: In-memory map of node IDs → metadata, persisted to SQLite
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(CPU/memory capacity, available slots, last-seen)
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- **Task Executor**: `os/exec.CommandContext` with `WaitDelay` (Go 1.25+) for
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clean process termination
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- **Job Scheduler (v0.2 P02)**:
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- **Algorithm**: best-fit bin-packing by `available_cpu` and `available_memory`
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- **Within-node ordering**: FIFO queue
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- **Cross-node**: if local node is full, `Dispatcher.Submit(peer, job)` is
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invoked; peers are tried in round-robin order
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- **Fallback**: if all peers reject, return `ErrNoFit` and requeue
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- **Dispatcher (NEW, P02)**:
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- `Submit(peerID, spec) (jobID, error)` — blocking call with retry
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- `Watch(peerID) iter.Seq[DispatchEvent]` — pull-style event stream for the
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CLI's `--watch` flag
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- Stateless: every call uses the latest mTLS client config and peer address
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- **Security Manager (NEW, P01)**:
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- `InitCA(commonName) (*CA, error)` — generates a self-signed CA, writes
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`ca.crt` (0644) and `ca.key` (0600) to `~/.orca/`
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- `Fingerprint(certPath) (sha256hex, error)` — used by `orca cert join`
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- `SignServerCert(csr, validity) (*cert, error)` — signs a CSR with the CA
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- `IssueServerCert(nodeName, dnsNames, ips) (*cert, *key, error)` — generates
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a keypair + CSR + signs it, returns PEM bytes for `orca cert join --server`
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- `ServerTLSConfig() (*tls.Config, error)` — loads `server.crt`/`server.key`
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and the CA pool from disk
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- `ClientTLSConfig(caPath) (*tls.Config, error)` — returns a client config
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pinned to the supplied CA
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- **Rotation policy**: server certs valid 90d; CA cert valid 10y. On
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`orca cert renew`, `IssueServerCert` is called and the daemon
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gracefully reloads the in-process `tls.Config` via `GetCertificate`
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hot-swap (no restart required)
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- **Audit Logger**: `slog.NewJSONHandler(os.Stderr, ...)` with structured fields
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### 5. Doctor (`internal/doctor`, NEW in P01)
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- **Purpose**: operator-facing diagnostics; runs read-only checks against
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the local state and reports PASS/WARN/FAIL.
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- **Subcommands**:
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- `orca doctor` — runs all checks
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- `orca doctor cert` — cert/CA health (file modes, expiry windows, SAN
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presence, fingerprint pinning match — see REQ-026, REQ-033,
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REQ-034, REQ-036)
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- `orca doctor network` — peer reachability over mTLS (per-peer handshake
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sanity, last-seen delta)
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- `orca doctor db` — SQLite integrity check (`PRAGMA integrity_check`)
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+ migration version
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- **Output**: human-readable by default; `--json` for machine consumption
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- **No state changes**: doctor is strictly read-only. It can be run
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while the daemon is down (where possible) or while it's up.
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- **Initial implementation in P01** (cert checks only); `network` and
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`db` checks land in subsequent phases as their state becomes
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available.
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### 6. State Store (`internal/store`)
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- **Driver**: `modernc.org/sqlite` (pure Go, CGO-free)
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- **Location**: `~/.orca/orca.db` (user-mode) or `/var/lib/orca/orca.db` (system-mode)
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- **Schema (v0.1)**: `nodes`, `jobs`, `tasks`, `audit_log` tables
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- **Schema (v0.2 P01)**: NEW `certs` table
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```sql
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CREATE TABLE certs (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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kind TEXT NOT NULL, -- 'ca' | 'server'
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node_id TEXT, -- NULL for CA
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serial_hex TEXT NOT NULL, -- x509.SerialNumber.Hex()
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subject_cn TEXT NOT NULL,
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issuer_cn TEXT NOT NULL,
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not_before INTEGER NOT NULL, -- unix seconds
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not_after INTEGER NOT NULL, -- unix seconds
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fingerprint TEXT NOT NULL, -- sha256 of DER, hex
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source_path TEXT NOT NULL, -- on-disk PEM path
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created_at INTEGER NOT NULL
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);
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CREATE INDEX idx_certs_node_kind ON certs(node_id, kind);
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CREATE INDEX idx_certs_not_after ON certs(not_after);
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```
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- **Migrations**: Embedded SQL files, applied on startup
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- **Migration 0004** is added in P01 with the schema above
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## Data Model
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### Node (v0.1, extended in v0.2 P02)
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```go
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type Node struct {
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ID string
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Name string
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Address string
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State string
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JoinedAt time.Time
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LastSeen time.Time
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Metadata map[string]string
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// v0.2 P02 — capacity for bin-packing
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Capacity NodeCapacity
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}
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type NodeCapacity struct {
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CPUMillicores int // total, e.g. 4000 = 4 cores
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MemoryBytes int64 // total RAM
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CPUUsed int // currently allocated
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MemoryUsed int64 // currently allocated
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}
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func (c NodeCapacity) AvailableCPU() int { return c.CPUMillicores - c.CPUUsed }
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func (c NodeCapacity) AvailableMemory() int64 { return c.MemoryBytes - c.MemoryUsed }
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```
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### Job (v0.1)
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```go
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type Job struct {
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ID string
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Name string
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Spec string
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Status string
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CreatedAt time.Time
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StartedAt *time.Time
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EndedAt *time.Time
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}
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```
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### Task (v0.1)
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```go
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type Task struct {
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ID string
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JobID string
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Command string
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Args []string
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Env []string
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PID int
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ExitCode int
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Status string
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CreatedAt time.Time
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StartedAt *time.Time
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EndedAt *time.Time
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}
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```
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### Certificate (NEW, v0.2 P01)
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```go
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type Cert struct {
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Kind CertKind // CertCA | CertServer
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NodeID string // empty for CA
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SerialHex string
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SubjectCN string
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IssuerCN string
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NotBefore time.Time
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NotAfter time.Time
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Fingerprint string // sha256 of DER (hex)
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SourcePath string // PEM path on disk
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CreatedAt time.Time
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}
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```
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## v0.2 Component Graph (ASCII)
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```
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┌─────────────────┐
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│ Operator Host │
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│ (orca CLI) │
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└────────┬────────┘
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│ 1. cert join --ca-fingerprint <sha>
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▼
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┌──────────────────────────────────────────────────────────────────────────────┐
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│ NODE A (Bootstrap / CA holder) │
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│ │
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│ ┌──────────────┐ CSR ┌────────────────────┐ PEM sign ┌────────┐ │
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│ │ orca cert │──────────▶│ internal/security │─────────────▶│ CA │ │
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│ │ {init,join} │ │ .SignServerCert() │ │ key │ │
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│ └──────────────┘ └────────────────────┘ │ 0600 │ │
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│ ┌──└────────┘ │
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│ ┌─────────────────┐ │ │
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│ │ internal/daemon │ ◀──tls.Config── internal/security │ │
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│ │ (http.Server) │ .ServerTLSConfig() │ │
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│ │ │ │ │
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│ │ /v1/jobs/* │ │ │
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│ │ /v1/nodes/* │ │ │
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│ │ /orca.v1.* │ │ │
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│ └────────┬────────┘ │ │
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│ │ Submit(job) (bin-pack) │ │
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│ ▼ │ │
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│ ┌─────────────────┐ │ │
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│ │ internal/engine │ │ │
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│ │ .scheduler │──── if local fits → executor │ │
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│ │ .dispatcher │──── else → Submit(peer, job) ───────────┼──┐ │
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│ └─────────────────┘ │ │ │
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│ │ │ mTLS │
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└──────────────────────────────────────────────────────────────┼──┼───────────┘
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│ │
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ORCA NODE NETWORK │ │
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│ │
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┌──────────────────────────────────────────────────────────────┼──┼───────────┐
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│ NODE B (Peer) │ │ │
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│ │ │ │
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│ ┌─────────────────┐ ◀── TLS 1.3 handshake ─────────────────┘ │ │
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│ │ internal/daemon │ │ │
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│ │ (http.Server) │ POST /orca.v1.Dispatch/Submit │ │
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│ │ │──── 200 + jobID │ │
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│ └────────┬────────┘ │ │
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│ │ │ │
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│ ▼ │ │
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│ ┌─────────────────┐ │ │
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│ │ internal/engine │ │ │
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│ │ .scheduler (FIFO) │ │
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│ │ .executor │ │
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│ └─────────────────┘ │ │
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└──────────────────────────────────────────────────────────────────────────────┘
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```
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## v0.2 Flows
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### Flow 1: Cert Issuance (CA-init → CSR → sign → install) — P01
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```
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Operator (Node A) Operator (Node B)
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───────────────── ─────────────────
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orca cert init
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↳ InitCA("orca-ca")
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↳ write ca.crt (0644), ca.key (0600)
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↳ record in certs table (kind='ca')
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orca cert join --ca-fingerprint <sha>
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↳ operator copies ca.crt → Node B
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↳ verifies fingerprint matches local
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--ca-fingerprint arg
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↳ IssueServerCert("node-b", SANs)
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↳ generate 2048-bit RSA key
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↳ build CSR with SANs
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↳ read ca.crt + ca.key
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↳ sign CSR (90d validity)
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↳ write server.crt (0644),
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server.key (0600)
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↳ record in certs table
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(kind='server', node_id='node-b')
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```
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### Flow 2: mTLS Handshake at `node join` — P01
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```
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Node B (joiner) Node A (CA holder)
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──────────────── ─────────────────
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orca node join --name node-b
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--ca-fingerprint <sha>
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--peer node-a:8443
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↳ load ca.crt → verify sha256 == --ca-fingerprint
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↳ load server.crt + server.key
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↳ tls.Config{MinVersion: TLS1.3, ...}
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↳ ClientHello (SNI=node-a)
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◀── ServerHello (TLS 1.3)
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◀── Certificate (Node A's cert)
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↳ verify Node A's cert chains to ca.crt ◀── CertificateRequest
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↳ send Certificate (Node B's cert) ◀── Finished
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↳ Finished
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↳ GET /healthz (over mTLS) — sanity check
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↳ POST /v1/nodes (over mTLS) — register
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↳ insert into nodes table
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↳ audit log
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↳ 200 OK
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↳ record node_a in peers table
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↳ audit log
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```
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### Flow 3: Job Dispatch (CLI → dispatcher → peer) — P02
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```
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User (Node A CLI) Node A (scheduler) Node B (peer)
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────────────────── ─────────────────── ─────────────
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orca job run spec.hcl
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↳ parse HCL
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↳ POST /v1/jobs (mTLS, local)
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↳ scheduler.Submit(spec)
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↳ bin-pack: spec.cpu + spec.mem
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↳ local node A has 2000mc + 4GiB free → fit!
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↳ executor.Run(spec)
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↳ 202 Accepted + jobID
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↳ returns jobID
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```
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```
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User (Node A CLI) Node A (scheduler) Node B (peer)
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────────────────── ─────────────────── ─────────────
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↳ scheduler.Submit(spec)
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↳ bin-pack: spec.cpu + spec.mem
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↳ local node A has 0 free → NO FIT
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↳ dispatcher.Submit(peer="node-b", spec)
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↳ load transport.Client("node-b")
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↳ POST /orca.v1.Dispatch/Submit
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↳ mTLS handshake
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↳ authenticate cert
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↳ scheduler.Submit(spec)
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↳ executor.Run(spec)
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↳ 200 OK + jobID
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↳ 200 OK + jobID
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↳ return jobID to local caller
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↳ returns jobID
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```
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### Flow 4: iter.Seq Streaming (`--watch`) — P04
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```
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User orca job list --watch
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──── ─────────────────────
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ctx, cancel := signal.NotifyContext(ctx, os.Interrupt)
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defer cancel()
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seq := store.Jobs().Watch(ctx)
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for job := range seq {
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print(job) // human or --json
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}
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// ctrl-c → ctx.Done() → seq stops yielding
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```
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Internally `store.Jobs().Watch(ctx) iter.Seq[Job]` polls the
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`jobs` table on a 1s ticker (or subscribes to an in-process
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notifier channel) and yields the current snapshot of each job
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|
until `ctx.Done()`. The store repo implements `iter.Seq[Job]`
|
|
as a function that takes a `yield func(Job) bool` callback.
|
|
|
|
## Security Architecture
|
|
|
|
### Authentication
|
|
- **v0.1**: mTLS for all API endpoints (self-signed CA)
|
|
- **v0.2 P01**: Internal CA with CSR join (see Flow 1 + 2)
|
|
- **v0.2+**: Token-based auth deferred to v0.3+
|
|
|
|
### Cert Rotation
|
|
- Server certs: 90-day validity, rotate at 60 days (30d before expiry)
|
|
- CA cert: 10-year validity, manual rotation
|
|
- Hot-swap: `tls.Config.GetCertificate` callback re-reads the
|
|
`server.crt`/`server.key` files on each handshake so `orca cert renew`
|
|
takes effect without a daemon restart.
|
|
|
|
### Audit Logging
|
|
- All state-changing operations emit structured log records
|
|
- Fields: `timestamp`, `actor`, `action`, `resource`, `result`, `error`
|
|
- Stored in SQLite `audit_log` table and stderr (JSON)
|
|
- **v0.2 P01 additions**: `cert.issued`, `cert.renewed`, `cert.joined`,
|
|
`node.handshake_ok`, `node.handshake_failed`
|
|
|
|
### Input Validation
|
|
- All CLI inputs validated via Cobra's `Args`/`ValidArgs` functions
|
|
- All API inputs validated at handler boundary
|
|
- HCL/YAML specs parsed with strict schemas
|
|
|
|
## Key Architectural Decisions (v0.1 + v0.2)
|
|
|
|
| ID | Decision | Rationale |
|
|
|----|----------|-----------|
|
|
| AD-001 | Single binary with subcommands | Simpler distribution, aligns with simplicity pillar |
|
|
| AD-002 | modernc/sqlite (CGO-free) | Cross-compile friendly, no CGO toolchain needed |
|
|
| AD-003 | net/http (no framework) | Stdlib suffices; avoids external router dependency |
|
|
| AD-004 | os/exec with WaitDelay (Go 1.25+) | Clean process termination, native to Go |
|
|
| AD-005 | Cobra for CLI | Industry standard, familiar to operators |
|
|
| AD-006 | slog for logging | Native to Go 1.21+, no external dependency |
|
|
| AD-007 | HCL for job specs | Familiar to Nomad/HashiCorp users |
|
|
| AD-008 | Single-node scheduling (v0.1) | Multi-node scheduling deferred to v0.2+ |
|
|
| AD-009 | Internal CA, no external PKI (v0.2) | Self-contained, no operational PKI requirement |
|
|
| AD-010 | Roll-our-own CA in `crypto/x509` (v0.2) | step-ca/cfssl/vault-pki too heavyweight for Orca's footprint |
|
|
| AD-011 | Operator-mediated CA cert distribution (v0.2) | No secret distribution over the wire; matches offline-first |
|
|
| AD-012 | TLS 1.3 only, AEAD allowlist (v0.2) | Modern crypto only; no downgrade risk |
|
|
| AD-013 | Eager mTLS at `node join` (v0.2) | Fail fast; don't defer handshake to first request |
|
|
| AD-014 | `orca.v1.Dispatch` via stdlib h2c (v0.2) | ConnectRPC not in go.mod; stdlib suffices for a single-RPC service |
|
|
| AD-015 | Best-fit bin-packing (v0.2) | Simple, deterministic, optimal for small fleets |
|
|
| AD-016 | iter.Seq for streaming lists (v0.2) | Go 1.25+ native, context-aware, pull semantics |
|
|
|
|
## Anti-Patterns (Explicitly Avoided)
|
|
|
|
- No controller/agent split (single binary)
|
|
- No CRDs / custom resource definitions
|
|
- No web UI (CLI-only)
|
|
- No service mesh
|
|
- No container runtime integration
|
|
- No multi-tenancy
|
|
- No cloud provider integrations
|
|
- No auto-scaling
|
|
- No admission controllers
|
|
- No complex scheduling algorithms (best-fit only)
|
|
- No gRPC framework dependency (stdlib net/http with h2c, Go 1.25+ native)
|
|
- No external PKI / no cert transparency logs (offline-first)
|
|
|
|
## Dependency Map (minimal — v0.2 adds zero direct deps)
|
|
|
|
```
|
|
github.com/spf13/cobra # CLI framework
|
|
github.com/hashicorp/hcl/v2 # HCL parser
|
|
modernc.org/sqlite # SQLite (pure Go)
|
|
github.com/google/uuid # UUID generation
|
|
```
|
|
|
|
Total: ~4 direct dependencies. No web framework, no ORM, no RPC framework,
|
|
no PKI library. mTLS via `crypto/tls` and `crypto/x509` (stdlib).
|
|
|
|
> **ConnectRPC note**: `.ciagent/config.json` lists `connectrpc` in
|
|
> `frameworks`, but the actual `go.mod` does not depend on
|
|
> `connectrpc.com/connect`. v0.2 falls back to plain `net/http` with
|
|
> HTTP/2 cleartext (h2c) for `orca.v1.Dispatch`. The protocol is a
|
|
> simple JSON-over-HTTP POST: client sends
|
|
> `{"spec": "..."}` to `/orca.v1.Dispatch/Submit`; server replies
|
|
> `{"job_id": "..."}`. This keeps the zero-new-dep promise and the
|
|
> codebase coherent with the rest of the daemon's `http.ServeMux`.
|
|
|
|
## Deployment Model (v0.2)
|
|
|
|
```
|
|
Operator Machine Node A (CA holder) Node B (Peer)
|
|
──────────────── ───────────────── ─────────────
|
|
orca CLI orca daemon orca daemon
|
|
│ │ ▲ │ ▲
|
|
│ mTLS handshake │ │ mTLS │ │
|
|
│ at `node join` ────────────┼──┘ │ │
|
|
│ │ │ │
|
|
│ submit job ───POST────────▶│ POST (cross-node) ──────────▶│
|
|
│ │ mTLS only │ │
|
|
│ │ │ │
|
|
│ ◀───────jobID──────────────│ ◀─────jobID (200 OK)─────────│
|
|
│ │ │
|
|
│ orca job list --watch │ │
|
|
│ (iter.Seq stream) ◀────────│── polls local + stream events│
|
|
```
|
|
|
|
For v0.2, one node must be the CA holder (`orca cert init` was run
|
|
on it). The CA holder's `ca.crt` is copied to each peer manually by
|
|
the operator; peers do not auto-fetch it.
|
|
|
|
## v0.6 Architecture Addendum — Node Bootstrap & Proxmox
|
|
|
|
### `orca init` Full Bootstrap (REQ-047, REQ-048, REQ-049)
|
|
|
|
`orca init` transforms from a bare `mkdir` into a full single-node
|
|
cluster bootstrap. The sequence (idempotent per D-036):
|
|
|
|
```
|
|
orca init
|
|
1. MkdirAll(certpaths.Dir(), 0o755) # namespace dir
|
|
2. store.Open(certpaths.DBPath()) # runs migrations 0001..0006
|
|
3. security.CAInit(dir, "orca-internal-ca") # idempotent fast-path
|
|
4. if !exists(server.crt):
|
|
GenerateCSR("localhost", ["localhost","127.0.0.1"])
|
|
ca.SignCSR(csr) → WriteCert + WriteKey # server cert (skip if present)
|
|
5. os := detectOS() # /etc/os-release ID=
|
|
6. node := Node{kind:"localhost", os:os, name:"localhost", addr:"localhost:8443"}
|
|
if GetByName("localhost") exists:
|
|
UpdateLastSeenAndOS(id, os) # refresh, keep id/joined_at
|
|
else:
|
|
NodeRepo.Insert(node) # first-run insert
|
|
7. print summary (CA fp, server cert fp, os, node id)
|
|
```
|
|
|
|
After `orca init`, `orca doctor` MUST pass with zero FAILs.
|
|
|
|
### Node Schema Extension (REQ-049)
|
|
|
|
Migration 0006 adds two nullable columns to `nodes`:
|
|
|
|
```sql
|
|
ALTER TABLE nodes ADD COLUMN kind TEXT; -- localhost | linux | proxmox
|
|
ALTER TABLE nodes ADD COLUMN os TEXT; -- ubuntu | debian | alpine | pve | linux
|
|
```
|
|
|
|
Existing rows get SQL NULL → mapped to `""` in Go (`sql.NullString`).
|
|
`Node` struct gains `Kind string` + `OS string` fields (JSON tags
|
|
`kind,omitempty` / `os,omitempty`). `NodeRepo` extends all
|
|
INSERT/SELECT/scanNode calls; adds `GetByName(ctx, name)` and
|
|
`UpdateLastSeenAndOS(ctx, id, os)` helpers.
|
|
|
|
### Proxmox SSH Bootstrap (REQ-050, REQ-051)
|
|
|
|
```
|
|
orca node join --type proxmox --host <addr> --user root --password <pw>
|
|
│ password from --password or $ORCA_PROXMOX_PASSWORD (never persisted, D-031)
|
|
▼
|
|
internal/proxmox.BootstrapProxmox(ctx, opts)
|
|
1. GenerateOrLoadSSHKey(certpaths.Dir()) # Ed25519, ~/.orca/orca_ssh_key{,.pub}
|
|
2. SSH dial (password auth, knownhosts.New TOFU) # capture host key on first connect
|
|
3. Deploy pubkey → ~orca/.ssh/authorized_keys # via session heredoc (no SFTP dep)
|
|
4. useradd -m orca # create Linux system user (config-overridable name)
|
|
5. pveum role add OrcaOperator --privs "VM.Audit Datastore.AllocateSpace SDN.Use"
|
|
(idempotent: probe pveum role list first)
|
|
6. pveum user add orca@pam -comment "Orca automation user"
|
|
(idempotent: probe pveum user list first)
|
|
7. pveum acl modify / -user orca@pam -role OrcaOperator
|
|
(idempotent: modify creates or updates)
|
|
8. Write /etc/sudoers.d/orca (mode 0440):
|
|
orca ALL=(root) NOPASSWD: NOEXEC: /usr/bin/pct, /usr/bin/qm
|
|
orca ALL=(root) NOPASSWD: /usr/bin/apt-get, /usr/bin/dpkg
|
|
9. visudo -cf /etc/sudoers.d/orca # validate; abort on error
|
|
10. NodeRepo.Insert(Node{kind:"proxmox", os:"pve", name:host, addr:host})
|
|
11. Audit log: proxmox.bootstrap_ok (host, user, role, fp)
|
|
```
|
|
|
|
**`pvesh` excluded from sudoers** — `pvesh` can trigger the API
|
|
`/nodes/{node}/execute` endpoint which spawns shell commands
|
|
server-side, bypassing sudo's `NOEXEC` tag. API access is via the
|
|
`OrcaOperator` PVE role + `orca@pam` user (PVE RBAC), not sudo'd `pvesh`.
|
|
|
|
### Doctor Extensions (REQ-052)
|
|
|
|
- **`doctor os`**: re-runs `detectOS()` from `/etc/os-release`, compares
|
|
to the stored localhost node's `os` field. Drift = WARN (OS upgraded
|
|
since init? re-run `orca init` to refresh). Match = PASS.
|
|
- **`doctor proxmox`**: iterates `kind=proxmox` nodes, SSH-probes each
|
|
with `pveversion` (3s timeout per peer, clones `doctor.Network()`
|
|
pattern). PASS = reachable + pveversion exits 0. WARN = zero proxmox
|
|
nodes (single-node cluster is legitimate). FAIL = any node
|
|
unreachable or pveversion fails.
|
|
|
|
### SSH Key Handling (D-037)
|
|
|
|
- **Location**: `~/.orca/orca_ssh_key` (0600) + `~/.orca/orca_ssh_key.pub` (0644)
|
|
- **Algorithm**: Ed25519 (smaller, faster, more secure than RSA for SSH)
|
|
- **Generation**: lazy — on first `orca node join --type proxmox`, NOT at `orca init` (localhost doesn't need SSH)
|
|
- **Format**: PKCS8 PEM (consistent with `ca.key`/`server.key`; `ssh.ParsePrivateKey` accepts it)
|
|
- **TOFU host keys**: `~/.orca/known_hosts` (OpenSSH format via `knownhosts.New`)
|
|
|
|
### Dependency Map (v0.6 addition)
|
|
|
|
```
|
|
golang.org/x/crypto v0.54.0 # SSH (ssh + ssh/knownhosts + ed25519)
|
|
└─ golang.org/x/sys v0.47.0 # indirect (bumped from v0.42.0)
|
|
└─ golang.org/x/term v0.45.0 # indirect (pulled by ssh for PTY)
|
|
```
|
|
|
|
Total direct deps: 5 (was 4). One new direct dep (`x/crypto`). Matches
|
|
D-030 minimal-deps rationale. No SFTP module (file upload via session
|
|
heredoc).
|
|
|
|
### v0.6 Architectural Decisions (AD-017..AD-021)
|
|
|
|
| ID | Decision | Rationale |
|
|
|----|----------|-----------|
|
|
| AD-017 | `orca init` = full bootstrap (CA + cert + db + localhost node) | Single command produces a working cluster; `orca doctor` passes post-init. Idempotent (D-036). |
|
|
| AD-018 | Proxmox join via SSH (golang.org/x/crypto/ssh), not PVE REST API | SSH is the universal Proxmox management entry point; REST API would require API token bootstrap (chicken-and-egg). One new direct dep (D-030). |
|
|
| AD-019 | `orca@pam` realm (not `orca@pve`) | SSH creates a Linux system user; PAM realm maps it to PVE RBAC without a separate PVE password. `@pve` requires interactive password prompt over non-PTY SSH (hangs). |
|
|
| AD-020 | Exclude `pvesh` from sudoers; NOEXEC on `pct`/`qm` | `pvesh` can trigger API execute endpoint bypassing NOEXEC. `pct`/`qm` are Perl scripts via dynamically-linked perl → NOEXEC effective. `apt-get`/`dpkg` need exec for maintainer scripts → no NOEXEC. |
|
|
| AD-021 | TOFU host-key via `knownhosts.New` | Avoids deprecated `ssh.InsecureIgnoreHostKey`. Capture-on-first-connect, verify-on-subsequent. Fail closed on mismatch (operator runs key-reset). |
|