Datasets:
File size: 4,128 Bytes
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Description: Creates a Redis cluster with Multi-AZ in a new VPC
Resources:
# Create a NEW VPC with both Public an Private Subnets
VPC:
Type: AWS::EC2::VPC
Properties:
CidrBlock: 10.0.0.0/16
EnableDnsHostnames: true
EnableDnsSupport: true
InstanceTenancy: default
# Create the first public subnet in the VPC with a CIDR block of 10.0.1.0/24
PublicSubnet1:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
AvailabilityZone: !Select [ 0, !GetAZs '' ]
CidrBlock: 10.0.1.0/24
MapPublicIpOnLaunch: true
# Create the second public subnet in the VPC with a CIDR block of 10.0.2.0/24
PublicSubnet2:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
AvailabilityZone: !Select [ 1, !GetAZs '' ]
CidrBlock: 10.0.2.0/24
MapPublicIpOnLaunch: true
# Create the first private subnet in the VPC with a CIDR block of 10.0.10.0/24
PrivateSubnet1:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
AvailabilityZone: !Select [ 0, !GetAZs '' ]
CidrBlock: 10.0.10.0/24
MapPublicIpOnLaunch: false
# Create the second private subnet in the VPC with a CIDR block of 10.0.11.0/24
PrivateSubnet2:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
AvailabilityZone: !Select [ 1, !GetAZs '' ]
CidrBlock: 10.0.11.0/24
MapPublicIpOnLaunch: false
# Create a Security Group for the Redis cluster allowing Ingress and Egress to "0.0.0.0/0" on port "6379"
RedisSecurityGroup:
Type: AWS::EC2::SecurityGroup
Properties:
GroupDescription: Redis Security Group
VpcId: !Ref VPC
SecurityGroupIngress:
- IpProtocol: tcp
FromPort: 6379
ToPort: 6379
CidrIp: 0.0.0.0/0
SecurityGroupEgress:
- IpProtocol: tcp
FromPort: 6379
ToPort: 6379
CidrIp: 0.0.0.0/0
# Create a subnet group for the Redis cluster using the 2 private subnets from the VPC
RedisSubnetGroup:
Type: AWS::ElastiCache::SubnetGroup
Properties:
Description: Subnets available for the Redis cluster
SubnetIds:
- !Ref PrivateSubnet1
- !Ref PrivateSubnet2
# Create a parameter group for the Redis cluster using Group family "redis6.x"
RedisParameterGroup:
Type: AWS::ElastiCache::ParameterGroup
Properties:
CacheParameterGroupFamily: redis7
Description: Parameter group for Redis cluster
# Create a Redis cluster using the newly created parameter group and subnet group, with a NumCacheClusters "2"
ElastiCacheCluster:
Type: AWS::ElastiCache::ReplicationGroup
Properties:
AutomaticFailoverEnabled: true
AutoMinorVersionUpgrade: true
CacheParameterGroupName: !Ref RedisParameterGroup
CacheNodeType: cache.t3.micro
CacheSubnetGroupName: !Ref RedisSubnetGroup
Engine: 'redis'
NumCacheClusters: 2
Port: 6379
ReplicationGroupDescription: 'Redis cluster'
SecurityGroupIds:
- !Ref RedisSecurityGroup
Outputs:
# Create the output for the DNS address of the primary read-write cache node
PrimaryAddress:
Description: 'The DNS address of the primary read-write cache node.'
Value: !GetAtt ElastiCacheCluster.PrimaryEndPoint.Address
# Create the output for the port number of the primary read-write cache node of the read-only replica nodes
PrimaryPort:
Description: 'The number of the port that the primary read-write cache engine is listening on.'
Value: !GetAtt ElastiCacheCluster.PrimaryEndPoint.Port
# Create the output for the DNS addresses of the read-only replica nodes
SecondaryAddresses:
Description: 'A string with a list of endpoints for the read-only replicas.'
Value: !GetAtt ElastiCacheCluster.ReadEndPoint.Addresses
# Create the output for the port number of the read-only replica nodes
SecondaryPorts:
Description: 'A string with a list of ports for the read-only replicas. '
Value: !GetAtt ElastiCacheCluster.ReadEndPoint.Ports |