# aws-fargate-sns module
<!--BEGIN STABILITY BANNER-->---
> All classes are under active development and subject to non-backward compatible changes or removal in any
> future version. These are not subject to the [Semantic Versioning](https://semver.org/) model.
> This means that while you may use them, you may need to update your source code when upgrading to a newer version of this package.
---
<!--END STABILITY BANNER-->
| **Reference Documentation**:| <span style="font-weight: normal">https://docs.aws.amazon.com/solutions/latest/constructs/</span>|
|:-------------|:-------------|
<div style="height:8px"></div>
| **Language** | **Package** |
|:-------------|-----------------|
| Python|`aws_solutions_constructs.aws_fargate_sns`|
| Typescript|`@aws-solutions-constructs/aws-fargate-sns`|
| Java|`software.amazon.awsconstructs.services.fargatesns`|
## Overview
This AWS Solutions Construct implements an AWS Fargate service that can write to an Amazon SNS topic
Here is a minimal deployable pattern definition:
Typescript
```python
import { Construct } from 'constructs';
import { Stack, StackProps } from 'aws-cdk-lib';
import { FargateToSns, FargateToSnsProps } from '@aws-solutions-constructs/aws-fargate-sns';
const constructProps: FargateToSnsProps = {
publicApi: true,
ecrRepositoryArn: "arn:aws:ecr:us-east-1:123456789012:repository/your-ecr-repo"
};
new FargateToSns(this, 'test-construct', constructProps);
```
Python
```python
from aws_solutions_constructs.aws_fargate_sns import FargateToSns, FargateToSnsProps
from aws_cdk import (
Stack
)
from constructs import Construct
FargateToSns(self, 'test_construct',
public_api=True,
ecr_repository_arn="arn:aws:ecr:us-east-1:123456789012:repository/your-ecr-repo")
```
Java
```java
import software.constructs.Construct;
import software.amazon.awscdk.Stack;
import software.amazon.awscdk.StackProps;
import software.amazon.awsconstructs.services.fargatesns.*;
new FargateToSns(this, "test_construct", new FargateToSnsProps.Builder()
.publicApi(true)
.ecrRepositoryArn("arn:aws:ecr:us-east-1:123456789012:repository/your-ecr-repo")
.build());
```
## Pattern Construct Props
| **Name** | **Type** | **Description** |
|:-------------|:----------------|-----------------|
| publicApi | boolean | Whether the construct is deploying a private or public API. This has implications for the VPC. |
| vpcProps? | [ec2.VpcProps](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.VpcProps.html) | Optional custom properties for a VPC the construct will create. This VPC will be used by any Private Hosted Zone the construct creates (that's why loadBalancerProps and privateHostedZoneProps can't include a VPC). Providing both this and existingVpc is an error. |
| existingVpc? | [ec2.IVpc](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.IVpc.html) | An existing VPC in which to deploy the construct. Providing both this and vpcProps is an error. If the client provides an existing load balancer and/or existing Private Hosted Zone, those constructs must exist in this VPC. |
| clusterProps? | [ecs.ClusterProps](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.ClusterProps.html) | Optional properties to create a new ECS cluster. To provide an existing cluster, use the cluster attribute of fargateServiceProps. |
| ecrRepositoryArn? | string | The arn of an ECR Repository containing the image to use to generate the containers. Either this or the image property of containerDefinitionProps must be provided. format: arn:aws:ecr:*region*:*account number*:repository/*Repository Name* |
| ecrImageVersion? | string | The version of the image to use from the repository. Defaults to 'Latest' |
| containerDefinitionProps? | [ecs.ContainerDefinitionProps | any](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.ContainerDefinitionProps.html) | Optional props to define the container created for the Fargate Service (defaults found in fargate-defaults.ts) |
| fargateTaskDefinitionProps? | [ecs.FargateTaskDefinitionProps | any](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.FargateTaskDefinitionProps.html) | Optional props to define the Fargate Task Definition for this construct (defaults found in fargate-defaults.ts) |
| fargateServiceProps? | [ecs.FargateServiceProps | any](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.FargateServiceProps.html) | Optional values to override default Fargate Task definition properties (fargate-defaults.ts). The construct will default to launching the service is the most isolated subnets available (precedence: Isolated, Private and Public). Override those and other defaults here. |
| existingFargateServiceObject? | [ecs.FargateService](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.FargateService.html) | A Fargate Service already instantiated (probably by another Solutions Construct). If this is specified, then no props defining a new service can be provided, including: ecrImageVersion, containerDefinitionProps, fargateTaskDefinitionProps, ecrRepositoryArn, fargateServiceProps, clusterProps |
| existingContainerDefinitionObject? | [ecs.ContainerDefinition](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.ContainerDefinition.html) | A container definition already instantiated as part of a Fargate service. This must be the container in the existingFargateServiceObject |
|existingTopicObj?|[sns.Topic](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_sns.Topic.html)|Existing instance of SNS Topic object, providing both this and `topicProps` will cause an error.|
|topicProps?|[sns.TopicProps](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_sns.TopicProps.html)|Optional user provided properties to override the default properties for the SNS topic.|
|topicArnEnvironmentVariableName?|string|Optional Name for the container environment variable set to the ARN of the topic. Default: SNS_TOPIC_ARN |
|topicNameEnvironmentVariableName?|string|Optional Name for the container environment variable set to the name of the topic. Default: SNS_TOPIC_NAME |
|enableEncryptionWithCustomerManagedKey?|`boolean`|If no key is provided, this flag determines whether the SNS Topic is encrypted with a new CMK or an AWS managed key. This flag is ignored if any of the following are defined: topicProps.masterKey, encryptionKey or encryptionKeyProps.|
|encryptionKey?|[`kms.Key`](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_kms.Key.html)|An optional, imported encryption key to encrypt the SNS Topic with.|
|encryptionKeyProps?|[`kms.KeyProps`](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_kms.Key.html#construct-props)|Optional user provided properties to override the default properties for the KMS encryption key used to encrypt the SNS Topic with.|
## Pattern Properties
| **Name** | **Type** | **Description** |
|:-------------|:----------------|-----------------|
| vpc | [ec2.IVpc](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.IVpc.html) | The VPC used by the construct (whether created by the construct or provided by the client) |
| service | [ecs.FargateService](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.FargateService.html) | The AWS Fargate service used by this construct (whether created by this construct or passed to this construct at initialization) |
| container | [ecs.ContainerDefinition](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.ContainerDefinition.html) | The container associated with the AWS Fargate service in the service property. |
|snsTopic|[`sns.Topic`](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_sns.Topic.html)|Returns an instance of the SNS topic created by the pattern.|
## Default settings
Out of the box implementation of the Construct without any override will set the following defaults:
### AWS Fargate Service
* Sets up an AWS Fargate service
* Uses the existing service if provided
* Creates a new service if none provided.
* Service will run in isolated subnets if available, then private subnets if available and finally public subnets
* Adds environment variables to the container with the ARN and Name of the SNS topic
* Add permissions to the container IAM role allowing it to publish to the SNS topic
### Amazon SNS Topic
* Sets up an Amazon SNS topic
* Uses an existing topic if one is provided, otherwise creates a new one
* Adds an Interface Endpoint to the VPC for SNS (the service by default runs in Isolated or Private subnets)
## Architecture
---
© Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
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"description": "# aws-fargate-sns module\n\n<!--BEGIN STABILITY BANNER-->---\n\n\n\n\n> All classes are under active development and subject to non-backward compatible changes or removal in any\n> future version. These are not subject to the [Semantic Versioning](https://semver.org/) model.\n> This means that while you may use them, you may need to update your source code when upgrading to a newer version of this package.\n\n---\n<!--END STABILITY BANNER-->\n\n| **Reference Documentation**:| <span style=\"font-weight: normal\">https://docs.aws.amazon.com/solutions/latest/constructs/</span>|\n|:-------------|:-------------|\n\n<div style=\"height:8px\"></div>\n\n| **Language** | **Package** |\n|:-------------|-----------------|\n| Python|`aws_solutions_constructs.aws_fargate_sns`|\n| Typescript|`@aws-solutions-constructs/aws-fargate-sns`|\n| Java|`software.amazon.awsconstructs.services.fargatesns`|\n\n## Overview\n\nThis AWS Solutions Construct implements an AWS Fargate service that can write to an Amazon SNS topic\n\nHere is a minimal deployable pattern definition:\n\nTypescript\n\n```python\nimport { Construct } from 'constructs';\nimport { Stack, StackProps } from 'aws-cdk-lib';\nimport { FargateToSns, FargateToSnsProps } from '@aws-solutions-constructs/aws-fargate-sns';\n\nconst constructProps: FargateToSnsProps = {\n publicApi: true,\n ecrRepositoryArn: \"arn:aws:ecr:us-east-1:123456789012:repository/your-ecr-repo\"\n};\n\nnew FargateToSns(this, 'test-construct', constructProps);\n```\n\nPython\n\n```python\nfrom aws_solutions_constructs.aws_fargate_sns import FargateToSns, FargateToSnsProps\nfrom aws_cdk import (\n Stack\n)\nfrom constructs import Construct\n\nFargateToSns(self, 'test_construct',\n public_api=True,\n ecr_repository_arn=\"arn:aws:ecr:us-east-1:123456789012:repository/your-ecr-repo\")\n```\n\nJava\n\n```java\nimport software.constructs.Construct;\n\nimport software.amazon.awscdk.Stack;\nimport software.amazon.awscdk.StackProps;\nimport software.amazon.awsconstructs.services.fargatesns.*;\n\nnew FargateToSns(this, \"test_construct\", new FargateToSnsProps.Builder()\n .publicApi(true)\n .ecrRepositoryArn(\"arn:aws:ecr:us-east-1:123456789012:repository/your-ecr-repo\")\n .build());\n```\n\n## Pattern Construct Props\n\n| **Name** | **Type** | **Description** |\n|:-------------|:----------------|-----------------|\n| publicApi | boolean | Whether the construct is deploying a private or public API. This has implications for the VPC. |\n| vpcProps? | [ec2.VpcProps](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.VpcProps.html) | Optional custom properties for a VPC the construct will create. This VPC will be used by any Private Hosted Zone the construct creates (that's why loadBalancerProps and privateHostedZoneProps can't include a VPC). Providing both this and existingVpc is an error. |\n| existingVpc? | [ec2.IVpc](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.IVpc.html) | An existing VPC in which to deploy the construct. Providing both this and vpcProps is an error. If the client provides an existing load balancer and/or existing Private Hosted Zone, those constructs must exist in this VPC. |\n| clusterProps? | [ecs.ClusterProps](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.ClusterProps.html) | Optional properties to create a new ECS cluster. To provide an existing cluster, use the cluster attribute of fargateServiceProps. |\n| ecrRepositoryArn? | string | The arn of an ECR Repository containing the image to use to generate the containers. Either this or the image property of containerDefinitionProps must be provided. format: arn:aws:ecr:*region*:*account number*:repository/*Repository Name* |\n| ecrImageVersion? | string | The version of the image to use from the repository. Defaults to 'Latest' |\n| containerDefinitionProps? | [ecs.ContainerDefinitionProps | any](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.ContainerDefinitionProps.html) | Optional props to define the container created for the Fargate Service (defaults found in fargate-defaults.ts) |\n| fargateTaskDefinitionProps? | [ecs.FargateTaskDefinitionProps | any](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.FargateTaskDefinitionProps.html) | Optional props to define the Fargate Task Definition for this construct (defaults found in fargate-defaults.ts) |\n| fargateServiceProps? | [ecs.FargateServiceProps | any](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.FargateServiceProps.html) | Optional values to override default Fargate Task definition properties (fargate-defaults.ts). The construct will default to launching the service is the most isolated subnets available (precedence: Isolated, Private and Public). Override those and other defaults here. |\n| existingFargateServiceObject? | [ecs.FargateService](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.FargateService.html) | A Fargate Service already instantiated (probably by another Solutions Construct). If this is specified, then no props defining a new service can be provided, including: ecrImageVersion, containerDefinitionProps, fargateTaskDefinitionProps, ecrRepositoryArn, fargateServiceProps, clusterProps |\n| existingContainerDefinitionObject? | [ecs.ContainerDefinition](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.ContainerDefinition.html) | A container definition already instantiated as part of a Fargate service. This must be the container in the existingFargateServiceObject |\n|existingTopicObj?|[sns.Topic](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_sns.Topic.html)|Existing instance of SNS Topic object, providing both this and `topicProps` will cause an error.|\n|topicProps?|[sns.TopicProps](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_sns.TopicProps.html)|Optional user provided properties to override the default properties for the SNS topic.|\n|topicArnEnvironmentVariableName?|string|Optional Name for the container environment variable set to the ARN of the topic. Default: SNS_TOPIC_ARN |\n|topicNameEnvironmentVariableName?|string|Optional Name for the container environment variable set to the name of the topic. Default: SNS_TOPIC_NAME |\n|enableEncryptionWithCustomerManagedKey?|`boolean`|If no key is provided, this flag determines whether the SNS Topic is encrypted with a new CMK or an AWS managed key. This flag is ignored if any of the following are defined: topicProps.masterKey, encryptionKey or encryptionKeyProps.|\n|encryptionKey?|[`kms.Key`](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_kms.Key.html)|An optional, imported encryption key to encrypt the SNS Topic with.|\n|encryptionKeyProps?|[`kms.KeyProps`](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_kms.Key.html#construct-props)|Optional user provided properties to override the default properties for the KMS encryption key used to encrypt the SNS Topic with.|\n\n## Pattern Properties\n\n| **Name** | **Type** | **Description** |\n|:-------------|:----------------|-----------------|\n| vpc | [ec2.IVpc](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.IVpc.html) | The VPC used by the construct (whether created by the construct or provided by the client) |\n| service | [ecs.FargateService](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.FargateService.html) | The AWS Fargate service used by this construct (whether created by this construct or passed to this construct at initialization) |\n| container | [ecs.ContainerDefinition](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.ContainerDefinition.html) | The container associated with the AWS Fargate service in the service property. |\n|snsTopic|[`sns.Topic`](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_sns.Topic.html)|Returns an instance of the SNS topic created by the pattern.|\n\n## Default settings\n\nOut of the box implementation of the Construct without any override will set the following defaults:\n\n### AWS Fargate Service\n\n* Sets up an AWS Fargate service\n\n * Uses the existing service if provided\n * Creates a new service if none provided.\n\n * Service will run in isolated subnets if available, then private subnets if available and finally public subnets\n * Adds environment variables to the container with the ARN and Name of the SNS topic\n * Add permissions to the container IAM role allowing it to publish to the SNS topic\n\n### Amazon SNS Topic\n\n* Sets up an Amazon SNS topic\n\n * Uses an existing topic if one is provided, otherwise creates a new one\n* Adds an Interface Endpoint to the VPC for SNS (the service by default runs in Isolated or Private subnets)\n\n## Architecture\n\n\n\n---\n\n\n\u00a9 Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n",
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