JelsB

from my_pipeline.configuration import RawConfig, AppConfig, ResourceConfig
# ...


class PipelineStack(core.Stack):

    def __init__(self, scope: core.Construct, pipeline_id: str, raw_config: RawConfig,
                 app_config: AppConfig, **kwargs: Any) -> None:
        super().__init__(scope, pipeline_id, **kwargs)

JelsB

# File where you can extend base configuration classes
from dataclasses import dataclass
from my_cdk_package.config.base import BaseAppConfig, BaseResourceConfig


@dataclass
class AppConfig(BaseAppConfig):
    """Custom application config class."""

    optional_custom_app_config: str

JelsB

class MyStack(core.Stack):
    """Example stack."""

    def __init__(self, scope: Construct, id: str, config: ResourceConfig, **kwargs: Any):
        super().__init__(scope, id, env=config.environment, **kwargs)

        # create resources

JelsB

synth_action = SimpleSynthAction(
    cloud_assembly_artifact=cloud_assembly_artifact,
    source_artifact=source_artifact,
    install_commands=['npm run ci_synth'],
    build_commands=['npm run ci_build'],
    install_commands=[
        # ...
        'npm run ci_type_check'
    ]
    # ...

JelsB

synth_action = SimpleSynthAction(
    # ...
    install_commands=[
        # typo in install
        f'npm insatll -g aws-cdk@{cdk_version}',
        # ...
    ],
    # ...
)

JelsB

from pathlib import Path
from aws_cdk import core
from my_pipeline.configuration import RawConfig, AppConfig
from my_pipeline.pipeline_stack import PipelineStack

# Read config file
config_file = Path('config.json')
# Process raw config file
raw_config = RawConfig(config_file)
# Create application config instance

JelsB

{
    "application": {
        "application_name": "<application_name>",
        "repository_name": "<name_of_the_CodeCommit_mirror_repo>",
        "branch": "master",
        "build_environment": {
            "account": "<account-id-of-build-account>",
            "region": "<build-aws-region>"
        }
        // ...

JelsB

class RawConfig:
    """
    Raw JSON configuration of the application and of all infrastructure resources for
    each environment and.
    """

    def __init__(self, config_file: Path):
        self._all_config: Any = self._read_config(config_file)
        self._environments_config: Any = self._all_config['environments']
        self._default: Any = self._environments_config['default']

JelsB

from dataclasses import dataclass
from typing import Any, Dict, Type, TypeVar
from aws_cdk.core import Environment, RemovalPolicy

# https://mypy.readthedocs.io/en/stable/kinds_of_types.html#the-type-of-class-objects
# https://github.com/python/typing/issues/58
# Needed to return correct child class types in classmethod constructor
ResourceConfigClass = TypeVar('ResourceConfigClass', bound='ResourceConfig')

JelsB

vpc = ec2.Vpc.from_vpc_attributes(self, 'vpc',
                                  vpc_id=vpc_id,
                                  availability_zones=list_of_vpc_availability_zones,
                                  private_subnet_ids=list_of_private_subnet_ids
                                  )

vpc_subnets = ec2.SubnetSelection(subnets=vpc.private_subnets)
# ...

alb = elbv2.ApplicationLoadBalancer(self, 'alb-name',