serverless.yml

# Welcome to Serverless!
#
# This file is the main config file for your service.
# It's very minimal at this point and uses default values.
# You can always add more config options for more control.
# We've included some commented out config examples here.
# Just uncomment any of them to get that config option.
#
# For full config options, check the docs:
#    docs.serverless.com
#
# Happy Coding!

service: serverless-cached-rds-ws


provider:
  name: aws
  runtime: java8

# you can overwrite defaults here
#  stage: dev
#  region: us-east-1

# you can add statements to the Lambda function's IAM Role here
  iamRoleStatements:
  - Effect: "Allow"
    Action:
      - ec2:CreateNetworkInterface
      - ec2:DescribeNetworkInterfaces
      - ec2:DeleteNetworkInterface
    Resource: "*"

# you can define service wide environment variables here
  environment:
    memcachedEndpoint:
      "Fn::Join": [":", ["Fn::GetAtt": [ServerlessElasticacheCluster, ConfigurationEndpoint.Address], "Fn::GetAtt": [ServerlessElasticacheCluster, ConfigurationEndpoint.Port]]]
    postgresEndpoint:
      "Fn::Join": [":", ["Fn::GetAtt": [ServerlessRDSCluster, Endpoint.Address], "Fn::GetAtt": [ServerlessRDSCluster, Endpoint.Port]]]
    postgresDatabase: "cool"
    postgresUser: "master"
    postgresPassword: "master1234"

# you can add packaging information here
package:
  artifact: target/serverless-ws-dev.jar

functions:
  wstester:
    handler: com.amazonaws.example.serverless.ws.Handler
    timeout: 30
    vpc:
      securityGroupIds:
        - "Fn::GetAtt": ServerlessSecurityGroup.GroupId
      subnetIds:
        - Ref: ServerlessSubnetA
        - Ref: ServerlessSubnetB
        - Ref: ServerlessSubnetC
    events:
      - http:
          path: test
          method: get
    environment:
      stage: ${opt:stage}

resources:
  Resources:
    ServerlessVPC:
      Type: AWS::EC2::VPC
      Properties:
        CidrBlock: "10.0.0.0/16"
    ServerlessSubnetA:
      DependsOn: ServerlessVPC
      Type: AWS::EC2::Subnet
      Properties:
        VpcId:
          Ref: ServerlessVPC
        AvailabilityZone: ${self:provider.region}a
        CidrBlock: "10.0.0.0/24"
    ServerlessSubnetB:
      DependsOn: ServerlessVPC
      Type: AWS::EC2::Subnet
      Properties:
        VpcId:
          Ref: ServerlessVPC
        AvailabilityZone: ${self:provider.region}c
        CidrBlock: "10.0.1.0/24"
    ServerlessSubnetC:
      DependsOn: ServerlessVPC
      Type: AWS::EC2::Subnet
      Properties:
        VpcId:
          Ref: ServerlessVPC
        AvailabilityZone: ${self:provider.region}d
        CidrBlock: "10.0.2.0/24"
    ServerlessSecurityGroup:
      DependsOn: ServerlessVPC
      Type: AWS::EC2::SecurityGroup
      Properties:
        GroupDescription: SecurityGroup for Serverless Functions
        VpcId:
          Ref: ServerlessVPC
    ServerlessStorageSecurityGroup:
      DependsOn: ServerlessVPC
      Type: AWS::EC2::SecurityGroup
      Properties:
        GroupDescription: Ingress for Memcached Cluster & RDS Instance
        VpcId:
          Ref: ServerlessVPC
        SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: '5432'
          ToPort: '5432'
          SourceSecurityGroupId:
            Ref: ServerlessSecurityGroup
        - IpProtocol: tcp
          FromPort: '11211'
          ToPort: '11211'
          SourceSecurityGroupId:
            Ref: ServerlessSecurityGroup
    ServerlessRDSSubnetGroup:
      Type: AWS::RDS::DBSubnetGroup
      Properties:
        DBSubnetGroupDescription: "RDS Subnet Group"
        SubnetIds:
        - Ref: ServerlessSubnetA
        - Ref: ServerlessSubnetB
        - Ref: ServerlessSubnetC
    ServerlessRDSCluster:
      DependsOn: ServerlessStorageSecurityGroup
      Type: AWS::RDS::DBInstance
      Properties:
        Engine: Postgres
        DBName: cool
        MasterUsername: master
        MasterUserPassword: master1234
        DBInstanceClass: db.m4.large
        AllocatedStorage: 10
        VPCSecurityGroups:
        - "Fn::GetAtt": ServerlessStorageSecurityGroup.GroupId
        DBSubnetGroupName:
          Ref: ServerlessRDSSubnetGroup
    ServerlessElasticacheSubnetGroup:
      Type: AWS::ElastiCache::SubnetGroup
      Properties:
        Description: "Cache Subnet Group"
        SubnetIds:
        - Ref: ServerlessSubnetA
        - Ref: ServerlessSubnetB
        - Ref: ServerlessSubnetC
    ServerlessElasticacheCluster:
      DependsOn: ServerlessStorageSecurityGroup
      Type: AWS::ElastiCache::CacheCluster
      Properties:
        AutoMinorVersionUpgrade: true
        Engine: memcached
        CacheNodeType: cache.t1.micro
        NumCacheNodes: 1
        VpcSecurityGroupIds:
        - "Fn::GetAtt": ServerlessStorageSecurityGroup.GroupId
        CacheSubnetGroupName:
          Ref: ServerlessElasticacheSubnetGroup