Imagine you've created a DynamoDB table named "my-new-table", and it has the ARN of arn:aws:dynamodb:us-west-2:111110002222:table/my-new-table. To make this more concrete, let's see one of these statements in action. Like the Action element, you can use the wildcard * to apply the statement to all resources in your account. This lets you give permissions on a more granular basis, such as limiting the ability to query a particular DynamoDB table rather than granting the ability to query all DynamoDB tables in your account. The value is an ARN or list of ARNs to which the statement applies. Resource tells what resources the permission statement affects. You can use wildcards in the Action, such as ec2:* to allow all actions in the EC2 namespace, or simply * to allow all actions anywhere. For example, the Action of s3:GetObject affects the GetObject action in the s3 service namespace. An Action has two parts: a service namespace and the action in that namespace. Occasionally, you might have an Effect of "Deny" to override any other "Allow" permissions.Īction tells what action an IAM user or role can take as a result of the IAM permission statement. Most IAM permissions have an Effect of "Allow" to grant access to a particular resource. Generally, an IAM user does not have access to AWS resources. (It may optionally include a Condition element, but that's outside the scope of this article.)Įffect tells what effect the IAM permission statement has-whether to Allow or Deny access. An IAM permission contains three elements: Effect, Action, and Resource. Your Lambda function assuming an IAM role will be important later when we discuss managing permissions with your Lambda functions.įinally, an IAM permission is a statement that grants/blocks an action(s) on a resource or set of resources. An IAM role could also be assumed by another AWS service, such as an EC2 instance or a Lambda function. You might use them with the AWS CLI or a particular language's SDK, like Boto3 for Python.Īn IAM role is similar to an IAM user, but is meant to be assumed by anyone or anything that needs to use it.Īn IAM user could assume an IAM role for a time, in order to access certain resources. Together, they can authenticate a particular user to AWS to access certain resources. Access keys consist of an "access key ID" and a "secret access key". This person often has access keys to programmatically interact with AWS resources. Usually, this is an actual person within your organization who will use the credentials to log into the AWS console. There are three basic concepts you should understand in the world of IAM: users, roles, and permissions.Īn IAM user is pretty close to what it sounds like-a user that is created to interact with AWS.
Managing permissions with your Lambda functions.Managing permissions for the Serverless Framework user.The two kinds of IAM entities with the Serverless Framework.We'll cover the basics of IAM to get you on your way. This isn't the only IAM guide you'll ever need, but you should understand how IAM works with Lambda and the Serverless Framework. Who is allowed to create a Lambda function? To delete a function? IAM is how you manage access to resources in your AWS account. Both authors and users can search against these labels in Google Drive.When getting started with Serverless, one of the hardest things to grok is IAM- AWS Identity and Access Management. Reviewers can leave feedback on a document and approve or request changes to documents.Īuthors can move a document through the draft, and review stage, issue new versions of a document and deprecate older versions of a document.Īuthors and reviewers can watch a document and be notified of changes in its content or state, discussion and reviews on the document and when a new version of the document is issued.Īuthors can tag a document with a set of free-form labels. It streamlines the collection of feedback from multiple users, keeps interested users up-to-date on the state of the document and enhances collaboration between multiple authors.ĭocument owners can add authors to the document giving them the ability to modify the document and obtain and respond to feedback left by reviewers.Īuthors can add and delete reviewers to the document, remind them to review the document and disseminate changes to reviewers as they are done. ShipIt is a Google Docs extension that makes it easy to formalize the document review process.
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