feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

internal/netaddr/inet.go

@@ -0,0 +1,39 @@
+package netaddr
+
+import (
+	"database/sql/driver"
+	"errors"
+	"net"
+)
+
+// Inet is a wrapper for transferring Inet values back and forth easily.
+type Inet struct {
+	Inet net.IP
+}
+
+// Scan implements the Scanner interface.
+func (i *Inet) Scan(value interface{}) error {
+	i.Inet = nil
+	if value == nil {
+		return nil
+	}
+	ipAsBytes, ok := value.([]byte)
+	if !ok {
+		return errors.New("could not convert scanned value to bytes")
+	}
+	parsedIP := net.ParseIP(string(ipAsBytes))
+	if parsedIP == nil {
+		return nil
+	}
+	i.Inet = parsedIP
+	return nil
+}
+
+// Value implements the driver Valuer interface. Note if
+// i.IP is nil the database column value will be set to NULL.
+func (i Inet) Value() (driver.Value, error) {
+	if i.Inet == nil {
+		return nil, nil
+	}
+	return []byte(i.Inet.String()), nil
+}