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How to use resolve_placeholders_in_string method in localstack

Best Python code snippet using localstack_python

template_deployer.py

Source:template_deployer.py

...465            for key, val in item_to_sub[1].items():466                val = resolve_refs_recursively(stack_name, val, resources)467                result = result.replace("${%s}" % key, val)468            # resolve placeholders469            result = resolve_placeholders_in_string(470                result, stack_name=stack_name, resources=resources471            )472            return result473        if stripped_fn_lower == "findinmap":474            attr = resolve_refs_recursively(stack_name, value[keys_list[0]][1], resources)475            result = resolve_ref(stack_name, value[keys_list[0]][0], resources, attribute=attr)476            if not result:477                raise Exception(478                    "Cannot resolve fn::FindInMap: %s %s"479                    % (value[keys_list[0]], list(resources.keys()))480                )481            key = value[keys_list[0]][2]482            if not isinstance(key, str):483                key = resolve_refs_recursively(stack_name, key, resources)484            return result.get(key)485        if stripped_fn_lower == "importvalue":486            import_value_key = resolve_refs_recursively(stack_name, value[keys_list[0]], resources)487            stack = find_stack(stack_name)488            stack_export = stack.exports_map.get(import_value_key) or {}489            if not stack_export.get("Value"):490                LOG.info(491                    'Unable to find export "%s" in stack "%s", existing export names: %s'492                    % (import_value_key, stack_name, list(stack.exports_map.keys()))493                )494                return None495            return stack_export["Value"]496        if stripped_fn_lower == "if":497            condition, option1, option2 = value[keys_list[0]]498            condition = evaluate_condition(stack_name, condition, resources)499            return resolve_refs_recursively(500                stack_name, option1 if condition else option2, resources501            )502        if stripped_fn_lower == "condition":503            result = evaluate_condition(stack_name, value[keys_list[0]], resources)504            return result505        if stripped_fn_lower == "not":506            condition = value[keys_list[0]][0]507            condition = resolve_refs_recursively(stack_name, condition, resources)508            return not condition509        if stripped_fn_lower in ["and", "or"]:510            conditions = value[keys_list[0]]511            results = [resolve_refs_recursively(stack_name, cond, resources) for cond in conditions]512            result = all(results) if stripped_fn_lower == "and" else any(results)513            return result514        if stripped_fn_lower == "equals":515            operand1, operand2 = value[keys_list[0]]516            operand1 = resolve_refs_recursively(stack_name, operand1, resources)517            operand2 = resolve_refs_recursively(stack_name, operand2, resources)518            return str(operand1) == str(operand2)519        if stripped_fn_lower == "select":520            index, values = value[keys_list[0]]521            index = resolve_refs_recursively(stack_name, index, resources)522            values = resolve_refs_recursively(stack_name, values, resources)523            return values[index]524        if stripped_fn_lower == "split":525            delimiter, string = value[keys_list[0]]526            delimiter = resolve_refs_recursively(stack_name, delimiter, resources)527            string = resolve_refs_recursively(stack_name, string, resources)528            return string.split(delimiter)529        if stripped_fn_lower == "getazs":530            region = (531                resolve_refs_recursively(stack_name, value["Fn::GetAZs"], resources)532                or aws_stack.get_region()533            )534            azs = []535            for az in ("a", "b", "c", "d"):536                azs.append("%s%s" % (region, az))537            return azs538        if stripped_fn_lower == "base64":539            value_to_encode = value[keys_list[0]]540            value_to_encode = resolve_refs_recursively(stack_name, value_to_encode, resources)541            return to_str(base64.b64encode(to_bytes(value_to_encode)))542        for key, val in dict(value).items():543            value[key] = resolve_refs_recursively(stack_name, val, resources)544    if isinstance(value, list):545        for i in range(len(value)):546            value[i] = resolve_refs_recursively(stack_name, value[i], resources)547    return value548def resolve_placeholders_in_string(result, stack_name=None, resources=None):549    def _replace(match):550        parts = match.group(1).split(".")551        if len(parts) >= 2:552            resource_name, _, attr_name = match.group(1).partition(".")553            resolved = resolve_ref(554                stack_name, resource_name.strip(), resources, attribute=attr_name.strip()555            )556            if resolved is None:557                raise DependencyNotYetSatisfied(558                    resource_ids=resource_name,559                    message="Unable to resolve attribute ref %s" % match.group(1),560                )561            return resolved562        if len(parts) == 1 and parts[0] in resources:...

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