Merge pull request #1 from LewS/master

initial commit

Author: Guslington

aurora-postgres.cfhighlander.rb

@@ -0,0 +1,26 @@
+CfhighlanderTemplate do
+  DependsOn 'vpc@1.2.0'
+  Parameters do
+    ComponentParam 'EnvironmentName', 'dev', isGlobal: true
+    ComponentParam 'EnvironmentType', 'development', isGlobal: true, allowedValues: ['development', 'production']
+    ComponentParam 'StackOctet', isGlobal: true
+    MappingParam('WriterInstanceType') do
+      map 'EnvironmentType'
+      attribute 'WriterInstanceType'
+    end
+    MappingParam('ReaderInstanceType') do
+      map 'EnvironmentType'
+      attribute 'ReaderInstanceType'
+    end
+    MappingParam('DnsDomain') do
+      map 'AccountId'
+      attribute 'DnsDomain'
+    end
+    maximum_availability_zones.times do |az|
+      ComponentParam "SubnetPersistence#{az}"
+    end
+    ComponentParam 'SnapshotID'
+    ComponentParam 'EnableReader', 'false'
+    ComponentParam 'VPCId', type: 'AWS::EC2::VPC::Id'
+  end
+end

aurora-postgres.cfndsl.rb

@@ -0,0 +1,79 @@
+CloudFormation do
+
+  Description "#{component_name} - #{component_version}"
+
+  Condition("EnableReader", FnEquals(Ref("EnableReader"), 'true'))
+  az_conditions_resources('SubnetPersistence', maximum_availability_zones)
+
+  tags = []
+  tags << { Key: 'Environment', Value: Ref(:EnvironmentName) }
+  tags << { Key: 'EnvironmentType', Value: Ref(:EnvironmentType) }
+
+  extra_tags.each { |key,value| tags << { Key: key, Value: value } } if defined? extra_tags
+
+  EC2_SecurityGroup(:SecurityGroup) do
+    VpcId Ref('VPCId')
+    GroupDescription FnJoin(' ', [ Ref(:EnvironmentName), component_name, 'security group' ])
+    SecurityGroupIngress sg_create_rules(security_group, ip_blocks)
+    Tags tags + [{ Key: 'Name', Value: FnJoin('-', [ Ref(:EnvironmentName), component_name, 'security-group' ])}]
+  end
+
+  RDS_DBSubnetGroup(:DBClusterSubnetGroup) {
+    SubnetIds az_conditional_resources('SubnetPersistence', maximum_availability_zones)
+    DBSubnetGroupDescription FnJoin(' ', [ Ref(:EnvironmentName), component_name, 'subnet group' ])
+    Tags tags + [{ Key: 'Name', Value: FnJoin('-', [ Ref(:EnvironmentName), component_name, 'subnet-group' ])}]
+  }
+
+  RDS_DBClusterParameterGroup(:DBClusterParameterGroup) {
+    Description FnJoin(' ', [ Ref(:EnvironmentName), component_name, 'cluster parameter group' ])
+    Family 'aurora-postgresql'
+    Parameters cluster_parameters if defined? cluster_parameters
+    Tags tags + [{ Key: 'Name', Value: FnJoin('-', [ Ref(:EnvironmentName), component_name, 'cluster-parameter-group' ])}]
+  }
+
+  RDS_DBCluster(:DBCluster) {
+    Engine 'aurora-postgresql'
+    DBClusterParameterGroupName Ref(:DBClusterParameterGroup)
+    SnapshotIdentifier Ref(:SnapshotID)
+    DBSubnetGroupName Ref(:DBClusterSubnetGroup)
+    VpcSecurityGroupIds [ Ref(:SecurityGroup) ]
+    Tags tags + [{ Key: 'Name', Value: FnJoin('-', [ Ref(:EnvironmentName), component_name, 'cluster' ])}]
+  }
+
+  RDS_DBParameterGroup(:DBInstanceParameterGroup) {
+    Description FnJoin(' ', [ Ref(:EnvironmentName), component_name, 'instance parameter group' ])
+    Family 'aurora-postgresql9.6'
+    Parameters instance_parameters if defined? instance_parameters
+    Tags tags + [{ Key: 'Name', Value: FnJoin('-', [ Ref(:EnvironmentName), component_name, 'instance-parameter-group' ])}]
+  }
+
+  RDS_DBInstance(:DBClusterInstanceWriter) {
+    DBSubnetGroupName Ref(:DBClusterSubnetGroup)
+    DBParameterGroupName Ref(:DBInstanceParameterGroup)
+    DBClusterIdentifier Ref(:DBCluster)
+    Engine 'aurora-postgresql'
+    PubliclyAccessible 'false'
+    DBInstanceClass Ref(:WriterInstanceType)
+    Tags tags + [{ Key: 'Name', Value: FnJoin('-', [ Ref(:EnvironmentName), component_name, 'writer-instance' ])}]
+  }
+
+  RDS_DBInstance(:DBClusterInstanceReader) {
+    Condition(:EnableReader)
+    DBSubnetGroupName Ref(:DBClusterSubnetGroup)
+    DBParameterGroupName Ref(:DBInstanceParameterGroup)
+    DBClusterIdentifier Ref(:DBCluster)
+    Engine 'aurora-postgresql'
+    PubliclyAccessible 'false'
+    DBInstanceClass Ref(:ReaderInstanceType)
+    Tags tags + [{ Key: 'Name', Value: FnJoin('-', [ Ref(:EnvironmentName), component_name, 'reader-instance' ])}]
+  }
+
+  Route53_RecordSet(:DBHostRecord) {
+    HostedZoneName FnJoin('', [ Ref('EnvironmentName'), '.', Ref('DnsDomain'), '.'])
+    Name FnJoin('', [ hostname, '.', Ref('EnvironmentName'), '.', Ref('DnsDomain'), '.' ])
+    Type 'CNAME'
+    TTL '60'
+    ResourceRecords [ FnGetAtt('DBCluster','Endpoint.Address') ]
+  }
+
+end

aurora-postgres.config.yaml

@@ -0,0 +1,22 @@
+maximum_availability_zones: 5
+hostname: aurora2pg
+
+cluster_parameters:
+
+instance_parameters:
+
+# Set `ip_blocks` here or export from vpc component
+ip_blocks:
+  local:
+    - 127.0.0.1/32
+
+
+security_group:
+  -
+    rules:
+      -
+        IpProtocol: tcp
+        FromPort: 5432
+        ToPort: 5432
+    ips:
+      - stack

aurora-postgres.mappings.yaml

@@ -0,0 +1,7 @@
+EnvironmentType:
+  development:
+    WriterInstanceType: db.t2.micro
+    ReaderInstanceType: db.t2.micro
+  production:
+    WriterInstanceType: db.t2.micro
+    ReaderInstanceType: db.t2.micro