phase 1: Go foundation — module, migrations, domain, seed ingest

Core deliverables:
- Go module github.com/dtoro/oikos (Go 1.26.3)
- cmd/oikos: single binary with role subcommands (migrate, seed, export)
- 6 SQL migrations: ontology meta-schema, entity instances (UUID+slug,
  blast_radius recursive function), operations (signals/checks/approvals),
  cognition (classifications/executions/feedback/patterns/skills), policy,
  observability (TimescaleDB hypertables + CAGGs + retention)
- Domain layer: entity, signal, execution, classification, pattern, skill,
  approval, check types + 11 sentinel errors + lifecycle state machines
- DB layer: pgx pool, SQL splitter (handles 94436 and -- comments), migration
  runner, seed ingest (ontology+inventory+policy) with content-hash dedup
- Config: env-based with defaults, secrets redaction
- Observability: slog JSON logger with debug mode
- Infrastructure: Makefile, docker-compose.yml, multi-stage Dockerfile
  (distroless, CGO_ENABLED=0)

Verified end-to-end against timescale/timescaledb:2.17.2-pg16:
- 6 migrations applied (65 SQL statements)
- Seeds ingested: 6 lifecycles, 59 entity types, 46 relationship types,
  111 entities, 144 relationships, 4 risk classes, 27 approval rules,
  9 autonomy settings
- Idempotent: second seed run is a no-op (content hash matches)

Bugs fixed during implementation:
- TimescaleDB CAGGs can't run in a transaction -> splitSQL() executes
  statements individually
- Semicolons in -- comments treated as separators -> comment handling
- YAML keys source/target didn't match code's source_type/target_type
- yaml.Marshal produced YAML for JSONB columns -> json.Marshal
This commit is contained in:
2026-07-07 01:07:26 +02:00
parent 55710bd254
commit aa2ca0ae6f
23 changed files with 1964 additions and 0 deletions

217
cmd/oikos/main.go Normal file
View File

@@ -0,0 +1,217 @@
package main
import (
"context"
"fmt"
"log/slog"
"os"
"os/signal"
"syscall"
"github.com/dtoro/oikos/internal/config"
"github.com/dtoro/oikos/internal/db"
"github.com/dtoro/oikos/internal/observability"
"github.com/jackc/pgx/v5"
)
func main() {
if len(os.Args) < 2 {
usage()
os.Exit(1)
}
role := os.Args[1]
cfg := config.FromEnv()
// Structured logging (slog)
logger := observability.NewLogger(cfg.Debug)
slog.SetDefault(logger)
slog.Info("starting oikos", "role", role, "config", cfg)
ctx, cancel := signal.NotifyContext(context.Background(),
syscall.SIGTERM, syscall.SIGINT)
defer cancel()
switch role {
case "migrate":
if err := runMigrate(ctx, cfg); err != nil {
slog.Error("migrate failed", "error", err)
os.Exit(1)
}
case "seed":
if err := runSeed(ctx, cfg); err != nil {
slog.Error("seed failed", "error", err)
os.Exit(1)
}
case "export":
if err := runExport(ctx, cfg); err != nil {
slog.Error("export failed", "error", err)
os.Exit(1)
}
case "api":
slog.Info("api role not yet implemented (Phase 2)")
os.Exit(1)
case "scheduler":
slog.Info("scheduler role not yet implemented (Phase 3)")
os.Exit(1)
case "notifier":
slog.Info("notifier role not yet implemented (Phase 3)")
os.Exit(1)
case "all":
slog.Info("all role not yet implemented (runs api + scheduler + notifier in one process)")
os.Exit(1)
case "version":
fmt.Println("oikos dev (Phase 1)")
case "help", "--help", "-h":
usage()
default:
fmt.Fprintf(os.Stderr, "unknown role: %s\n", role)
usage()
os.Exit(1)
}
}
func usage() {
fmt.Println(`oikos — the homelab OS
Usage: oikos <role> [flags]
Roles:
migrate Run database migrations (forward-only, idempotent)
seed Ingest seed YAML files into the database
export Export DB state back to seed YAMLs (DR / version control)
api Run the REST + MCP API server (Phase 2)
scheduler Run the observe + act loop (Phase 3)
notifier Run the notification service (Phase 3)
all Run all roles in one process (dev mode)
version Print version info
Environment:
OIKOS_DATABASE_URL Postgres connection string
OIKOS_API_LISTEN API listen address (default :8090)
OIKOS_ENV Environment (dev, prod)
OIKOS_DEBUG Enable verbose logging (true/1)
OIKOS_SEEDS_DIR Path to seeds directory (default: seeds)
OIKOS_MCP_BEARER_TOKEN Shared secret for MCP auth`)
}
func runMigrate(ctx context.Context, cfg config.Config) error {
pool, err := db.New(ctx, cfg.DatabaseURL)
if err != nil {
return err
}
defer pool.Close()
slog.Info("running migrations")
if err := pool.Migrate(ctx); err != nil {
return err
}
slog.Info("migrations complete")
return nil
}
func runSeed(ctx context.Context, cfg config.Config) error {
pool, err := db.New(ctx, cfg.DatabaseURL)
if err != nil {
return err
}
defer pool.Close()
// Ensure migrations are applied first
if err := pool.Migrate(ctx); err != nil {
return fmt.Errorf("migrations: %w", err)
}
seedsDir := cfg.SeedsDir
if seedsDir == "" {
seedsDir = "seeds"
}
// Ingest ontology seed
ontoContent, err := os.ReadFile(seedsDir + "/ontology.yaml")
if err != nil {
return fmt.Errorf("read ontology seed: %w", err)
}
err = pool.SeedIngest(ctx, "ontology.yaml", ontoContent,
func(ctx context.Context, tx pgx.Tx, data map[string]any) error {
r, err := db.IngestOntologySeed(ctx, tx, data)
if err != nil {
return err
}
slog.Info("ontology ingested",
"lifecycles", r.Lifecycles,
"entity_types", r.EntityTypes,
"relationship_types", r.RelationshipTypes)
return nil
})
if err != nil {
return err
}
// Ingest inventory seed
invContent, err := os.ReadFile(seedsDir + "/inventory.yaml")
if err != nil {
return fmt.Errorf("read inventory seed: %w", err)
}
err = pool.SeedIngest(ctx, "inventory.yaml", invContent,
func(ctx context.Context, tx pgx.Tx, data map[string]any) error {
r, err := db.IngestInventorySeed(ctx, tx, data)
if err != nil {
return err
}
slog.Info("inventory ingested",
"entities", r.Entities,
"relationships", r.Relationships)
return nil
})
if err != nil {
return err
}
// Ingest policy seed
polContent, err := os.ReadFile(seedsDir + "/policy.yaml")
if err != nil {
return fmt.Errorf("read policy seed: %w", err)
}
err = pool.SeedIngest(ctx, "policy.yaml", polContent,
func(ctx context.Context, tx pgx.Tx, data map[string]any) error {
r, err := db.IngestPolicySeed(ctx, tx, data)
if err != nil {
return err
}
slog.Info("policy ingested",
"risk_classes", r.RiskClasses,
"approval_rules", r.ApprovalRules,
"autonomy_settings", r.AutonomySettings)
return nil
})
if err != nil {
return err
}
slog.Info("seed ingest complete")
return nil
}
func runExport(ctx context.Context, cfg config.Config) error {
pool, err := db.New(ctx, cfg.DatabaseURL)
if err != nil {
return err
}
defer pool.Close()
exports, err := db.ExportToYAML(ctx, pool)
if err != nil {
return err
}
for name, content := range exports {
path := cfg.SeedsDir + "/" + name
if err := os.WriteFile(path, content, 0644); err != nil {
return fmt.Errorf("write %s: %w", path, err)
}
slog.Info("exported", "file", path, "bytes", len(content))
}
return nil
}