How to use is_deployable_resource method in localstack

Best Python code snippet using localstack_python

template_deployer.py

Source:template_deployer.py

...362            if not sm_arn:363                return None364            result = sfn_client.describe_state_machine(stateMachineArn=sm_arn[0])365            return result366        if is_deployable_resource(resource):367            LOG.warning('Unexpected resource type %s when resolving references of resource %s: %s' %368                        (resource_type, resource_id, resource))369    except Exception as e:370        # we expect this to be a "not found" exception371        markers = ['NoSuchBucket', 'ResourceNotFound', '404']372        if not list(filter(lambda marker, e=e: marker in str(e), markers)):373            LOG.warning('Unexpected error retrieving details for resource %s: %s %s - %s %s' %374                (resource_type, e, traceback.format_exc(), resource, resource_status))375    return None376def extract_resource_attribute(resource_type, resource, attribute):377    LOG.debug('Extract resource attribute: %s %s' % (resource_type, attribute))378    # extract resource specific attributes379    if resource_type == 'Lambda::Function':380        actual_attribute = 'FunctionArn' if attribute == 'Arn' else attribute381        return resource['Configuration'][actual_attribute]382    elif resource_type == 'DynamoDB::Table':383        actual_attribute = 'LatestStreamArn' if attribute == 'StreamArn' else attribute384        value = resource['Table'].get(actual_attribute)385        return value386    elif resource_type == 'ApiGateway::RestApi':387        if attribute == 'PhysicalResourceId':388            return resource['id']389        if attribute == 'RootResourceId':390            resources = aws_stack.connect_to_service('apigateway').get_resources(restApiId=resource['id'])['items']391            for res in resources:392                if res['path'] == '/' and not res.get('parentId'):393                    return res['id']394    elif resource_type == 'ApiGateway::Resource':395        if attribute == 'PhysicalResourceId':396            return resource['id']397    return resource.get(attribute)398def resolve_ref(stack_name, ref, resources, attribute):399    if ref == 'AWS::Region':400        return DEFAULT_REGION401    resource_status = {}402    if stack_name:403        resource_status = describe_stack_resource(stack_name, ref)404        attr_value = resource_status.get(attribute)405        if attr_value not in [None, '']:406            return attr_value407    elif ref in resources:408        resource_status = resources[ref]['__details__']409    # fetch resource details410    resource = resources.get(ref)411    resource_new = retrieve_resource_details(ref, resource_status, resources, stack_name)412    if not resource_new:413        return414    resource_type = get_resource_type(resource)415    result = extract_resource_attribute(resource_type, resource_new, attribute)416    if not result:417        LOG.warning('Unable to extract reference attribute %s from resource: %s' % (attribute, resource_new))418    return result419def resolve_refs_recursively(stack_name, value, resources):420    if isinstance(value, dict):421        if len(value) == 1 and 'Ref' in value:422            return resolve_ref(stack_name, value['Ref'],423                resources, attribute='PhysicalResourceId')424        elif len(value) == 1 and 'Fn::GetAtt' in value:425            return resolve_ref(stack_name, value['Fn::GetAtt'][0],426                resources, attribute=value['Fn::GetAtt'][1])427        else:428            for key, val in iteritems(value):429                value[key] = resolve_refs_recursively(stack_name, val, resources)430        if len(value) == 1 and 'Fn::Join' in value:431            return value['Fn::Join'][0].join(value['Fn::Join'][1])432    if isinstance(value, list):433        for i in range(0, len(value)):434            value[i] = resolve_refs_recursively(stack_name, value[i], resources)435    return value436def update_resource(resource_id, resources, stack_name):437    resource = resources[resource_id]438    resource_type = get_resource_type(resource)439    if resource_type not in UPDATEABLE_RESOURCES:440        LOG.warning('Unable to update resource type "%s", id "%s"' % (resource_type, resource_id))441        return442    props = resource['Properties']443    if resource_type == 'Lambda::Function':444        client = aws_stack.connect_to_service('lambda')445        keys = ('FunctionName', 'Role', 'Handler', 'Description', 'Timeout', 'MemorySize', 'Environment', 'Runtime')446        update_props = dict([(k, props[k]) for k in keys if k in props])447        return client.update_function_configuration(**update_props)448def deploy_resource(resource_id, resources, stack_name):449    resource = resources[resource_id]450    client = get_client(resource)451    if not client:452        return False453    resource_type = get_resource_type(resource)454    func_details = RESOURCE_TO_FUNCTION.get(resource_type)455    if not func_details:456        LOG.warning('Resource type not yet implemented: %s' % resource_type)457        return458    LOG.debug('Deploying resource type "%s" id "%s"' % (resource_type, resource_id))459    func_details = func_details[ACTION_CREATE]460    function = getattr(client, func_details['function'])461    params = dict(func_details['parameters'])462    defaults = func_details.get('defaults', {})463    if 'Properties' not in resource:464        resource['Properties'] = {}465    resource_props = resource['Properties']466    for param_key, prop_keys in iteritems(dict(params)):467        params.pop(param_key, None)468        if not isinstance(prop_keys, list):469            prop_keys = [prop_keys]470        for prop_key in prop_keys:471            if prop_key == PLACEHOLDER_RESOURCE_NAME:472                params[param_key] = resource_id473                resource_name = get_resource_name(resource)474                if resource_name:475                    params[param_key] = resource_name476                else:477                    # try to obtain physical resource name from stack resources478                    try:479                        return resolve_ref(stack_name, resource_id, resources,480                            attribute='PhysicalResourceId')481                    except Exception as e:482                        LOG.debug('Unable to extract physical id for resource %s: %s' % (resource_id, e))483            else:484                if callable(prop_key):485                    prop_value = prop_key(resource_props, stack_name=stack_name, resources=resources)486                else:487                    prop_value = resource_props.get(prop_key)488                if prop_value is not None:489                    params[param_key] = prop_value490            tmp_value = params.get(param_key)491            if tmp_value is not None:492                params[param_key] = resolve_refs_recursively(stack_name, tmp_value, resources)493                break494        # hack: convert to boolean495        if params.get(param_key) in ['True', 'False']:496            params[param_key] = params.get(param_key) == 'True'497    # assign default value if empty498    params = common.merge_recursive(defaults, params)499    # invoke function500    try:501        LOG.debug('Request for creating resource type "%s": %s' % (resource_type, params))502        result = function(**params)503    except Exception as e:504        LOG.warning('Error calling %s with params: %s for resource: %s' % (function, params, resource))505        raise e506    # some resources have attached/nested resources which we need to create recursively now507    if resource_type == 'ApiGateway::Method':508        integration = resource_props.get('Integration')509        if integration:510            api_id = resolve_refs_recursively(stack_name, resource_props['RestApiId'], resources)511            res_id = resolve_refs_recursively(stack_name, resource_props['ResourceId'], resources)512            uri = integration.get('Uri')513            if uri:514                uri = resolve_refs_recursively(stack_name, uri, resources)515                aws_stack.connect_to_service('apigateway').put_integration(restApiId=api_id, resourceId=res_id,516                    httpMethod=resource_props['HttpMethod'], type=integration['Type'],517                    integrationHttpMethod=integration['IntegrationHttpMethod'], uri=uri518                )519    elif resource_type == 'SNS::Topic':520        subscriptions = resource_props.get('Subscription', [])521        for subscription in subscriptions:522            endpoint = resolve_refs_recursively(stack_name, subscription['Endpoint'], resources)523            topic_arn = retrieve_topic_arn(params['Name'])524            aws_stack.connect_to_service('sns').subscribe(525                TopicArn=topic_arn, Protocol=subscription['Protocol'], Endpoint=endpoint)526    return result527def deploy_template(template, stack_name):528    if isinstance(template, string_types):529        template = parse_template(template)530    resource_map = template.get('Resources')531    if not resource_map:532        LOG.warning('CloudFormation template contains no Resources section')533        return534    next = resource_map535    iters = 10536    for i in range(0, iters):537        # get resource details538        for resource_id, resource in iteritems(next):539            stack_resource = describe_stack_resource(stack_name, resource_id)540            resource['__details__'] = stack_resource541        next = resources_to_deploy_next(resource_map, stack_name)542        if not next:543            return544        for resource_id, resource in iteritems(next):545            deploy_resource(resource_id, resource_map, stack_name=stack_name)546    LOG.warning('Unable to resolve all dependencies and deploy all resources ' +547        'after %s iterations. Remaining (%s): %s' % (iters, len(next), next))548# --------549# Util methods for analyzing resource dependencies550# --------551def is_deployable_resource(resource):552    resource_type = get_resource_type(resource)553    entry = RESOURCE_TO_FUNCTION.get(resource_type)554    if entry is None:555        LOG.warning('Unknown resource type "%s": %s' % (resource_type, resource))556    return entry and entry.get(ACTION_CREATE)557def is_deployed(resource_id, resources, stack_name):558    resource = resources[resource_id]559    resource_status = resource.get('__details__') or {}560    details = retrieve_resource_details(resource_id, resource_status, resources, stack_name)561    return bool(details)562def should_be_deployed(resource_id, resources, stack_name):563    """ Return whether the given resource is all of: (1) deployable, (2) not yet deployed,564        and (3) has no unresolved dependencies. """565    resource = resources[resource_id]566    if not is_deployable_resource(resource) or is_deployed(resource_id, resources, stack_name):567        return False568    res_deps = get_resource_dependencies(resource_id, resource, resources)569    return all_dependencies_satisfied(res_deps, stack_name, resources, resource_id)570def is_updateable(resource_id, resources, stack_name):571    """ Return whether the given resource can be updated or not """572    resource = resources[resource_id]573    if not is_deployable_resource(resource) or not is_deployed(resource_id, resources, stack_name):574        return False575    resource_type = get_resource_type(resource)576    return resource_type in UPDATEABLE_RESOURCES577def all_dependencies_satisfied(resources, stack_name, all_resources, depending_resource=None):578    for resource_id, resource in iteritems(resources):579        if is_deployable_resource(resource):580            if not is_deployed(resource_id, all_resources, stack_name):581                return False582    return True583def resources_to_deploy_next(resources, stack_name):584    result = {}585    for resource_id, resource in iteritems(resources):586        if should_be_deployed(resource_id, resources, stack_name):587            result[resource_id] = resource588    return result589def get_resource_dependencies(resource_id, resource, resources):590    result = {}591    dumped = json.dumps(common.json_safe(resource))592    for other_id, other in iteritems(resources):593        if resource != other:...

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