serverless-fargate-plugin

Based on templates found here: https://github.com/nathanpeck/aws-cloudformation-fargate

About

This plugin will create a cluster, load balancer, vpc, subnets, and one or more services to associate with it. This plugin implements the following approaches:

• Public VPC / Public ELB / Public Subnet
• Private VPC / Private ELB / Private ELB

If you would like to reference the VPC elsewhere (such as in the serverless-aurora-plugin). The VPC will be called VPC{stage} where {stage} is the stage in the serverless.yml. The subnets will be called SubnetName{stage}{index} where {stage}is the stage in the serverless.yml, and {index} references the index of the subnet that was specified in the subnets array. THESE ARE NOT ADDED TO OUTPUT. So you can only reference them in the same serverless.yml / same cf stack.

Notes

• This plugin only supports AWS
• Docker image must be built / uploaded / and properly tagged
• It is assumed that the process running in the docker container is listening for HTTP requests.

Options

{
    tags: {
      owner: Me
      Customer: You
    };
    executionRoleArn?: string; // execution role for services, generated if not specified
    disableELB?: boolean; //disable ELB creation and bindings, default to false. Usefull for long running processes
    vpc: {
        //if this options are specified it will create a VPC
        cidr: string;
        subnets: string[]; // subnet cidrs
        //If this options are specified it will attach to existing VPC.
        //all of then are required, if one missing it will turn to self-created 
        //VPC as described above -- All vpc parameters below are intrinsic safe 
        //ivars meaning that all of then accept intrinsic functions 💪
        vpcId: string;
        securityGroupIds: string[]
        subnetIds: string[]
    };
    services: Array<{
        name: string; // name of the service
        cpu: number;
        memory: number;
        public: boolean; //Will it be facing internet? This affects directly what security groups will be auto created
        port: number; // docker port (the port exposed on the docker image) - if not specified random port will be used - usefull for busy private subnets 
        disableELB?: boolean; //useful for disabling ELB listeners on a cluster that has ELB and more tasks with ELB enabled
        entryPoint: string[]; // same as docker's entry point
        environment: { [key: string]: string }; // environment variables passed to docker container
        protocols: Array<{
            protocol: "HTTP" | "HTTPS";
            certificateArns?: string[]; // needed for https
        }>;
        autoScale: {
              min?: number; //default to 1
              max?: number; //default to 1
              metric: AutoScalingMetricType;
              cooldown?: number; //defaults to 30
              cooldownIn?: number; //defaults to cooldown but has priority over it
              cooldownOut?: number; //defaults to cooldown but has priority over it
              targetValue: number;
        }
        image?: string; // full image name, REPOSITORY[:TAG]
        imageRepository?: string; // image repository (used if image option is not provided)
        imageTag?: string; // image tag (used if image option is not provided)
        priority?: number; // priority for routing, defaults to 1
        path?: string | { path: string, method?: string }[]; // path the LB should send traffic to, defaults '*' (everything) - keyword 'ANY' is allowed on method
        desiredCount?: number; // number of tasks wanted by default - if not specified defaults to 1
        taskRoleArn?: string;
        healthCheckUri?: string; // defaults to "/"
        healthCheckProtocol?: string; // defaults to "HTTP"
        healthCheckInterval?: number // in seconds, defaults to 6 seconds
    }>
}

Examples

service: example-service

provider:
  name: aws
  region: us-east-1
  stage: example

plugins:
- serverless-fargate-plugin

custom:
  fargate:
    - clusterName: Test
      vpc:
        cidr: 10.0.0.0/16
        subnets:
        - 10.0.0.0/24
        - 10.0.1.0/24
      tags:
        customer: You
        owner: Me
      disableELB: false
      services:
      - name: example-name
        cpu: 512
        memory: 1024
        port: 80
        healthCheckUri: /health
        healthCheckInterval: 6
        imageTag: 1.0.0
        imageRepository: xxx.amazonaws.com/xxx
        autoScale:
          min: 1
          max: 10
          cooldownIn: 30
          cooldownOut: 60
          metric: ECSServiceAverageCPUUtilization
          targetValue: 75
        entryPoint:
        - npm
        - run
        - start
        environment:
          PRODUCTION: true
        protocols:
        - protocol: HTTP
        - protocol: HTTPS
          certificateArns:
          - xxxx

####Outputs For the configuration above CF will have the reference ECSTestClusterExampleNameServiceHTTP to be used on your serverless template as ${cf:stackName.ECSTestClusterExampleNameServiceHTTP}

For more information about your stack name, please, check here

TODO

• Tests
• Better TS Definitions
• Option to not use ELB
• Auto certification through plugin https://github.com/schwamster/serverless-certificate-creator
• More options