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cdk-ecs-public-discovery-1.0.1
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مشاهده بیشترتوضیحات
An AWS CDK library that provides ECS service discovery functionality for an ECS task's public IP address
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | cdk-ecs-public-discovery-1.0.1 |
| نام | cdk-ecs-public-discovery |
| نسخه کتابخانه | 1.0.1 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Aaron Lucia |
| ایمیل نویسنده | - |
| آدرس صفحه اصلی | https://github.com/engineal/cdk-ecs-public-discovery#readme |
| آدرس اینترنتی | https://pypi.org/project/cdk-ecs-public-discovery/ |
| مجوز | Apache-2.0 |
# ECS Public Discovery
The poor man's alternative to the recommended approach of using an ELB for public ingress into your ECS service.
The provided CDK construct offers similar functionality to what AWS provides through ECS Service Discovery (also known
as AWS Cloud Map), but instead of creating a DNS entry with the private IP address of the task (even with a public Cloud
Map namespace), it will register the public IP address of the task.
This can support services with multiple tasks with Route53 multivalue answer routing.
## Installation
### TypeScript / JavaScript
`npm install cdk-ecs-public-discovery`
or
`yarn add cdk-ecs-public-discovery`
### Python
`pip install cdk-ecs-public-discovery`
### Java
```xml
<dependency>
<groupId>com.engineal.cdk</groupId>
<artifactId>ecs-public-discovery</artifactId>
</dependency>
```
### C# / .Net
`dotnet add package EngineAL.CDK.EcsPublicDiscovery`
## Usage
Create a new `EcsPublicDiscovery` construct for your ECS cluster. Provide the Route53 Hosted Zone to create DNS entries
in.
```python
const cluster = new ecs.Cluster(stack, 'TestCluster');
const hostedZone = route53.HostedZone.fromHostedZoneAttributes(stack, 'HostedZone', {
hostedZoneId: 'Z1R8UBAEXAMPLE',
zoneName: 'example.com'
});
const ecsPublicDiscovery = new EcsPublicDiscovery(stack, 'EcsPublicDiscovery', {
cluster,
hostedZone
});
```
Then for each service you create in that cluster that you want to enable public routing to, set `assignPublicIp` to
`true` and register it with the `EcsPublicDiscovery` construct you created:
```python
const taskDefinition = new ecs.FargateTaskDefinition(stack, 'TestTaskDefinition');
taskDefinition.addContainer('TestContainer', {
image: ecs.ContainerImage.fromRegistry('hello-world')
});
const service = new ecs.FargateService(stack, 'TestService', {
assignPublicIp: true,
cluster,
taskDefinition
});
ecsPublicDiscovery.addService({
// eslint-disable-next-line no-magic-numbers
dnsTtl: cdk.Duration.minutes(1),
name: 'test',
service
});
```
## Details
This construct creates a Lambda function that is triggered by an EventBridge rule that listens for when an ECS task is
running or has stopped.
Each ECS service registered with this construct is tagged with the `public-discovery:name` and optionally the
`public-discovery:ttl` tags based on the props you provide, which will be propagated to the service's tasks and the
network interface attached to the task. The ECS task definition must use the AwsVpc network mode, and the ECS service
must assign a public IP to its tasks' network interface.
When a task is running, the Lambda function will call the EC2 `DescribeNetworkInterfaces` API action to describe the
task's network interface to look up the public IP address and tags assigned to the task. It will then call the
Route53 `ChangeResourceRecordSets` API action to upsert an A record, using the public IP address as the value of the
resource record, the value of the `public-discovery:name` tag as the name, the value of the `public-discovery:ttl` tag
as the TTL if present or 60 seconds if absent, and the task's id as the set identifier to allow for multivalue routing.
When the task has stopped, the Lambda function will call the Route53 `ListResourceRecordSets` API action to look up the
resource record set for the task's id and will then call the Route53 `ChangeResourceRecordSets` API action to delete
that A record.
### Useful commands
* `npm run build` compile typescript to js
* `npm run watch` watch for changes and compile
* `npm run package` generates libraries for all languages
* `npm run test` perform the jest unit tests
## License
Copyright 2023 Aaron Lucia
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
```
http://www.apache.org/licenses/LICENSE-2.0
```
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
نیازمندی
| مقدار | نام |
|---|---|
| ==2.65.0 | aws-cdk-lib |
| <11.0.0,>=10.0.0 | constructs |
| <2.0.0,>=1.75.0 | jsii |
| >=0.0.3 | publication |
| ~=2.13.3 | typeguard |
زبان مورد نیاز
| مقدار | نام |
|---|---|
| ~=3.7 | Python |
نحوه نصب
نصب پکیج whl cdk-ecs-public-discovery-1.0.1:
pip install cdk-ecs-public-discovery-1.0.1.whl
نصب پکیج tar.gz cdk-ecs-public-discovery-1.0.1:
pip install cdk-ecs-public-discovery-1.0.1.tar.gz