Module: StackBuilder::LambdaPolicy

Defined in:
lib/modulator/stack/policies.rb

Class Method Summary collapse

Class Method Details

.add_lambda_iam_role(function_name: nil) ⇒ Object

add inline iam role to lambda, NOTE: use the same role for all lambdas for now



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# File 'lib/modulator/stack/policies.rb', line 6

def add_lambda_iam_role(function_name: nil)
  StackBuilder.stack.add('LambdaRole', Humidifier::IAM::Role.new(
      assume_role_policy_document: {
        "Version" => "2012-10-17",
        'Statement' => [
          {
            "Action" => ["sts:AssumeRole"],
            "Effect" => "Allow",
            'Principal' => {
              'Service' => ["lambda.amazonaws.com"]
            }
          }
        ]
      },
      policies: []
    )
  )
end

.add_policy(policy, **opts) ⇒ Object 



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# File 'lib/modulator/stack/policies.rb', line 25

def add_policy(policy, **opts)
  StackBuilder.stack.resources['LambdaRole'].properties['policies'] << send(policy, opts)
end

.cloudwatch(**opts) ⇒ Object

policy to access cloudwatch



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# File 'lib/modulator/stack/policies.rb', line 30

def cloudwatch(**opts)
  {
    "policy_document" => {
      "Version" => "2012-10-17",
      'Statement' => [
        {
          "Sid" => "AllowLogCreation",
          "Action" => [
            "logs:CreateLogStream",
            "logs:PutLogEvents",
          ],
          "Effect" => "Allow",
          "Resource" => Humidifier.fn.sub("arn:aws:logs:${AWS::Region}:${AWS::AccountId}:*")
        },
        {
          "Sid" => "AllowLogGroupCreation",
          "Action" => [
            "logs:CreateLogGroup",
          ],
          "Effect" => "Allow",
          "Resource" => "*"
        }
      ]
    },
    "policy_name" => "cloud-watch-access"
  }
end

.dynamo_db(**opts) ⇒ Object

policy to access prefixed dynamo tables



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# File 'lib/modulator/stack/policies.rb', line 59

def dynamo_db(**opts)
  prefixes = opts[:prefixes] || []
  prefix_separator = opts[:prefix_separator] || '-'
  wildcard = '*'
  if prefixes.any?
    prefixes.map!{|prefix| prefix == :app_name ? StackBuilder.stack.app_name.dasherize.split('-') : prefix}
    wildcard = "#{(prefixes << '*').join(prefix_separator)}"
  end
  {
    "policy_document" => {
      "Version" => "2012-10-17",
      'Statement' => [
        {
          "Sid" => "AllowAllActionsOnPrefixedTable",
          "Effect" => "Allow",
          "Action" => [
              "dynamodb:*"
          ],
          "Resource" => Humidifier.fn.sub("arn:aws:dynamodb:${AWS::Region}:${AWS::AccountId}:table/#{wildcard}")
        },
        {
          "Sid" => "AdditionalPrivileges",
          "Effect" => "Allow",
          "Action" => [
              "dynamodb:ListTables",
              "dynamodb:DescribeTable"
          ],
          "Resource" => "*"
        }
      ]
    },
    "policy_name" => "dynamo-db-access"
  }
end

.secret_manager(**opts) ⇒ Object

TODO: add access to named secrets



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# File 'lib/modulator/stack/policies.rb', line 95

def secret_manager(**opts)

end