[sdlf-foundations][cdk] ability to provide parameter values without --parameters

Author: cnfait

sdlf-foundations/deployspec.yaml

@@ -12,11 +12,8 @@ deploy:
     build:
       commands:
         - |-
-          cdk deploy --all --require-approval never --progress events --app "python src/app.py" --outputs-file ./cdk-exports.json \
-            --no-previous-parameters \
-            --parameters pOrg="$SEEDFARMER_PARAMETER_ORG" \
-            --parameters pDomain="$SEEDFARMER_PARAMETER_DOMAIN" \
-            --parameters pChildAccountId="$AWS_ACCOUNT_ID"
+          env | grep "SEEDFARMER"
+          cdk deploy --all --require-approval never --progress events --app "python src/app.py" --outputs-file ./cdk-exports.json
         - seedfarmer metadata convert -f cdk-exports.json || true
 destroy:
   phases:

sdlf-foundations/src/app.py

@@ -12,12 +12,25 @@
 
 if project_name:
     stack_name = f"{project_name}-{deployment_name}-{module_name}"
+    param_prefix = "SEEDFARMER_PARAMETER_"
 else:  # app.py not used in a seedfarmer context somehow
     stack_name = "sdlf-foundations"
+    param_prefix = ""
+
+
+def _param(name: str, default: str = None) -> str:
+    return os.getenv(f"{param_prefix}{name}", default)
+
 
 app = cdk.App()
 stack = cdk.Stack(app, stack_name)
-stack_foundations = Foundations(stack, "foundations")
+stack_foundations = Foundations(
+    stack,
+    "foundations",
+    org=_param("ORG"),
+    data_domain=_param("DATA_DOMAIN"),
+    account_id=os.getenv("CDK_DEFAULT_ACCOUNT"),
+)
 
 cdk.CfnOutput(
     scope=stack,

sdlf-foundations/src/foundations.py

@@ -28,7 +28,7 @@
 class Foundations(Construct):
     external_interface = {}
 
-    def __init__(self, scope: Construct, id: str, **kwargs) -> None:
+    def __init__(self, scope: Construct, id: str, org: str, data_domain: str, account_id: str, **kwargs) -> None:
         super().__init__(scope, id)
 
         dirname = os.path.dirname(__file__)
@@ -50,6 +50,7 @@ def __init__(self, scope: Construct, id: str, **kwargs) -> None:
             type="String",
             allowed_pattern="(\\d{12}|^$)",
             constraint_description="Must be an AWS account ID",
+            default=str(account_id),
         )
         p_childaccountid.override_logical_id("pChildAccountId")
         p_org = CfnParameter(
@@ -58,13 +59,15 @@ def __init__(self, scope: Construct, id: str, **kwargs) -> None:
             description="Name of the organization owning the datalake (all lowercase, no symbols or spaces)",
             type="String",
             allowed_pattern="[a-z0-9]{2,9}",
+            default=org,
         )
         p_org.override_logical_id("pOrg")
         p_domain = CfnParameter(
             self,
             "pDomain",
             description="Data domain name",
             type="String",
+            default=data_domain,
         )
         p_domain.override_logical_id("pDomain")
         # p_cloudwatchlogsretentionindays = CfnParameter(self, "pCloudWatchLogsRetentionInDays",