60 lines
1.9 KiB
YAML
60 lines
1.9 KiB
YAML
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AWSTemplateFormatVersion: '2010-09-09'
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Description: Redis, and any other resources that the chat app needs.
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Parameters:
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EnvironmentName:
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Type: String
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Default: production
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Description: The environment name, used for locating outputs from the
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prerequisite stacks
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Resources:
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# Subnet group to control where the Redis gets placed
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RedisSubnetGroup:
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Type: AWS::ElastiCache::SubnetGroup
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Properties:
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Description: Group of subnets to place Redis into
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SubnetIds:
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- Fn::ImportValue:
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!Join [':', [!Ref 'EnvironmentName', 'PublicSubnetOne']]
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- Fn::ImportValue:
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!Join [':', [!Ref 'EnvironmentName', 'PublicSubnetTwo']]
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# Security group to add the Redis cluster to the VPC,
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# and to allow the Fargate containers to talk to Redis on port 6379
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RedisSecurityGroup:
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Type: AWS::EC2::SecurityGroup
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Properties:
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GroupDescription: "Redis Security Group"
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VpcId:
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Fn::ImportValue:
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!Join [':', [!Ref 'EnvironmentName', 'VPCId']]
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RedisIngress:
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Type: AWS::EC2::SecurityGroupIngress
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Properties:
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Description: Ingress from Fargate containers
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GroupId: !Ref 'RedisSecurityGroup'
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IpProtocol: tcp
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FromPort: 6379
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ToPort: 6379
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SourceSecurityGroupId:
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Fn::ImportValue:
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!Join [':', [!Ref 'EnvironmentName', 'FargateContainerSecurityGroup']]
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# The cluster itself.
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Redis:
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Type: AWS::ElastiCache::CacheCluster
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Properties:
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Engine: redis
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CacheNodeType: cache.m4.large
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NumCacheNodes: 1
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CacheSubnetGroupName: !Ref 'RedisSubnetGroup'
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VpcSecurityGroupIds:
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- !GetAtt 'RedisSecurityGroup.GroupId'
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Outputs:
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RedisEndpoint:
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Description: The endpoint of the redis cluster
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Value: !GetAtt 'Redis.RedisEndpoint.Address'
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Export:
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Name: !Join [ ':', [ !Ref 'EnvironmentName', 'RedisEndpoint' ] ]
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