feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

internal/netaddr/testutil.go

@@ -0,0 +1,39 @@
+package netaddr
+
+import (
+	"database/sql"
+	"os"
+
+	_ "github.com/lib/pq" // postgres driver
+)
+
+type Fatalistic interface {
+	Fatal(args ...interface{})
+}
+
+func openTestConn(t Fatalistic) *sql.DB {
+	host := getEnv("DATABASE_HOST", getEnv("DB_HOST", "localhost"))
+	if os.Getenv("CI") != "" && os.Getenv("DATABASE_HOST") == "" && os.Getenv("DB_HOST") == "" {
+		host = "postgres"
+	}
+	port := getEnv("DATABASE_PORT", getEnv("DB_PORT", "35432"))
+	user := getEnv("DATABASE_USER", getEnv("DB_USER", "rsmon"))
+	password := getEnv("DATABASE_PASSWORD", getEnv("DB_PASSWORD", "rsmon"))
+	dbname := getEnv("DATABASE_NAME", getEnv("DB_NAME", "rsmon_test"))
+	conn, err := sql.Open(
+		"postgres",
+		"host="+host+" port="+port+" user="+user+" password="+password+" dbname="+dbname+" sslmode=disable",
+	)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	return conn
+}
+
+func getEnv(key, fallback string) string {
+	if value := os.Getenv(key); value != "" {
+		return value
+	}
+	return fallback
+}