kubernetes/kops · error

cannot interpret %q value as int32

Error message

cannot interpret %q value as int32

What it means

The target field is int32; strconv.ParseInt(s,10,32) failed, meaning the value is not a valid integer or is outside the int32 range (-2147483648..2147483647).

Source

Thrown at util/pkg/reflectutils/access.go:218

	case "int64", "int32", "int16", "int":
		switch t {
		case "int":
			v, err := strconv.Atoi(newValue)
			if err != nil {
				return fmt.Errorf("cannot interpret %q value as integer", newValue)
			}
			newV = reflect.ValueOf(v)
		case "int16":
			v, err := strconv.ParseInt(newValue, 10, 16)
			if err != nil {
				return fmt.Errorf("cannot interpret %q value as int16", newValue)
			}
			v16 := int16(v)
			newV = reflect.ValueOf(v16)
		case "int32":
			v, err := strconv.ParseInt(newValue, 10, 32)
			if err != nil {
				return fmt.Errorf("cannot interpret %q value as int32", newValue)
			}
			v32 := int32(v)
			newV = reflect.ValueOf(v32)
		case "int64":
			v, err := strconv.ParseInt(newValue, 10, 64)
			if err != nil {
				return fmt.Errorf("cannot interpret %q value as int64", newValue)
			}
			v64 := int64(v)
			newV = reflect.ValueOf(v64)
		default:
			panic("missing case in int switch")
		}

	case "uint64", "uint32", "uint16", "uint":
		v, err := strconv.Atoi(newValue)
		if err != nil {
			return fmt.Errorf("cannot interpret %q value as unsigned integer", newValue)

View on GitHub (pinned to 4c8573c808)

Solutions

  1. Use a value within int32 range.
  2. If the real value exceeds ~2.1e9, the field type must be int64 — check the kops API type.
  3. Pre-validate with strconv.ParseInt(v,10,32).

Example fix

// before
SetString(&c, "spec.someInt32Field", "99999999999")
// after
SetString(&c, "spec.someInt64Field", "99999999999") // if field is int64
Defensive patterns

Strategy: validation

Validate before calling

if _, err := strconv.ParseInt(val, 10, 32); err != nil {
    return fmt.Errorf("value %q does not fit int32", val)
}

Type guard

func isInt32(s string) bool {
    _, err := strconv.ParseInt(s, 10, 32)
    return err == nil
}

Try / catch

if err := SetString(&obj, path, val); err != nil {
    if strings.Contains(err.Error(), "as int32") {
        return fmt.Errorf("%q must fit int32 range", val)
    }
    return err
}

Prevention

When it happens

Trigger: SetString on an int32 field with "9999999999" or a non-numeric string.

Common situations: Large IDs, sizes, or byte counts fed to int32 fields via `kops set`; values copied from YAML with underscores or units.

Related errors


AI-assisted analysis of kubernetes/kops@4c8573c808 (2026-09-05). Data as JSON: /api/errors/646cae76bfadc5b1. Report an issue: GitHub.