neptune-endpoints-info-lambda.json

{
  "AWSTemplateFormatVersion": "2010-09-09",
  "Description": "AWS Lambda function for retrieving Amazon Neptune endpoint info",
  "Parameters": {
    "NeptuneClusterId": {
      "Description": "Amazon Neptune DB cluster identifier.",
      "Type": "String"
    },
    "Concurrency": {
      "Description": "The number of simultaneous executions to reserve for the function (default 1).",
      "Type": "Number",
      "Default": 1
    },
    "PollingIntervalSeconds": {
      "Description": "Interval (in seconds) between polling the Amazon Neptune management API for endpoint info (default 10).",
      "Type": "Number",
      "Default": 10
    },
    "Suspended": {
      "Description": "Determines which endoints will be marked as 'suspended' (values 'all', 'none', 'writer', 'reader'; default 'none').",
      "Type": "String",
      "Default": "none",
      "AllowedValues": [
        "all",
        "none",
        "writer",
        "reader"
      ]
    },
    "S3Bucket": {
      "Description": "An Amazon S3 bucket containing the Lambda .jar file.",
      "Type": "String"
    },
    "S3Key": {
      "Description": "The Amazon S3 key of the Lambda .jar file (e.g. bin/neptune-endpoints-info-lambda.jar).",
      "Type": "String"
    }
  },
  "Resources": {
    "LambdaExecutionRole": {
      "Type": "AWS::IAM::Role",
      "Properties": {
        "AssumeRolePolicyDocument": {
          "Version": "2012-10-17",
          "Statement": [
            {
              "Effect": "Allow",
              "Principal": {
                "Service": [
                  "lambda.amazonaws.com"
                ]
              },
              "Action": [
                "sts:AssumeRole"
              ]
            }
          ]
        },
        "Path": "/",
        "ManagedPolicyArns": [
          "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole",
          "arn:aws:iam::aws:policy/AmazonRDSReadOnlyAccess"
        ]
      }
    },
    "NeptuneEndpointsInfoLambda": {
      "Type": "AWS::Lambda::Function",
      "Properties": {
        "FunctionName": {
          "Fn::Sub": "neptune-endpoint-info_${NeptuneClusterId}"
        },
        "Handler": "software.amazon.lambda.NeptuneEndpointsInfoLambda::handleRequest",
        "ReservedConcurrentExecutions": {
          "Ref": "Concurrency"
        },
        "Role": {
          "Fn::GetAtt": [
            "LambdaExecutionRole",
            "Arn"
          ]
        },
        "Code": {
          "S3Bucket": {
            "Ref": "S3Bucket"
          },
          "S3Key": {
            "Ref": "S3Key"
          }
        },
        "Environment": {
          "Variables": {
            "clusterId": {
              "Ref": "NeptuneClusterId"
            },
            "pollingIntervalSeconds": {
              "Ref": "PollingIntervalSeconds"
            },
            "suspended": {
              "Ref": "Suspended"
            }
          }
        },
        "MemorySize": 512,
        "Runtime": "java8",
        "Timeout": "15"
      }
    }
  },
  "Outputs": {
    "NeptuneEndpointsInfoLambdaArn": {
      "Description": "NeptuneEndpointsInfoLambda ARN",
      "Value": {
        "Fn::GetAtt": [
          "NeptuneEndpointsInfoLambda",
          "Arn"
        ]
      }
    }
  }
}