${STAGE} ` で、STAGEにBlueかGreenを設 定することで、 additionalStacks: blue: StackName: blue-${self:service}-${self:provider.stage}-backend DeployParameters: - ParameterKey: Name ParameterValue: blue-${self:service}-${self:provider.stage}-backend - ParameterKey: Stage ParameterValue: ${self:provider.stage} Parameters: ${file(./backend.template.yml):Parameters} Resources: ${file(./backend.template.yml):Resources green: StackName: green-${self:service}-${self:provider.stage}-backend DeployParameters: - ParameterKey: Name ParameterValue: green-${self:service}-${self:provider.stage}-backend - ParameterKey: Stage ParameterValue: ${self:provider.stage} - ParameterKey: PrivateSubnets Parameters: ${file(./backend.template.yml):Parameters} Resources: ${file(./backend.template.yml):Resources