#AWS IAM AUTHENTICATOR PASSWORD#

Here's the nginx.yaml file we will use for that test. That's expected! Let's run a simple pod in the office namespace. He/she should not be able to list cluster nodes: $ kubectl get nodeĮrror from server (Forbidden): nodes is forbidden: User 'officedep' cannot list resource 'nodes' in API group '' at the cluster scope We are ready to test our deployment manager user. Remember that to switch users (eksadmin or officedep) you just need to export the desired profile.

Export the new profile: export AWS_DEFAULT_PROFILE='officedep' Uid: 5df31bad-a165-11e9-90f3-12c84ad916b6Ĭreate the aws profile for the officedep user with aws configure -profile officedep. SelfLink: /api/v1/namespaces/kube-system/configmaps/aws-auth Rolearn: arn:aws:iam::356198252393:role/eksctl-EKSTestDrive-nodegroup-ng-NodeInstanceRole-5C1P4COCU9W1 kubectl -n kube-system get configmap aws-auth -o yaml Let's look at the aws-auth ConfigMap before we change anything. One will be our backup administrator, the other will have a role for managing deployments in the 'office' namespace. We will use it as a base for the 2 users we will add to the cluster. Here is a very nice introduction to RBAC in Kubernetes over at Bitnami. New users and/or roles are declared via the aws-auth ConfigMap within Kubernetes. The other one is RBAC (Role Based Access Management on Kubernetes). It is assumed that you have a running EKS cluster.Īdding users to your EKS cluster has 2 sides: one is IAM (Identity and Access Management on the AWS side). If the two roles match, an access token is returned.This is a followup on the article ' Build a kubernetes cluster with eksctl'. Amazon EKS uses IAM to provide authentication to your Kubernetes cluster through the AWS IAM authenticator for Kubernetes. The role is validated against the requesting role. If the STS request is successful, the requesting instance or function's IAM role is returned.

Validates the host, myspace/011915987442/MyApp, has permission to authenticate using the prod IAM Authenticator.Įxtracts the signed request from the POST body.Ĭreates a request to the AWS STS service, using the provided signed request as its header. When Conjur receives this authentication request, it performs the following: Using the signed request, the instance or function authenticates with a Conjur using the following:Ĭ = 'my-account'Ĭ_file = '//conjur-yourorg.pem'Ĭonjur = Conjur::API.new_from_key 'host/aws/011915987442:assumed-role/MyApp', request.to_json The example below shows how a signed request is generated (using Ruby):Ĭredentials_provider: Aws::InstanceProfileCredentials.new The signed request is valid for five minutes. This request is signed using the instance or function's access key. The instance or function starts, assuming the IAM role was provided.įrom the instance or function, generate a signed request to the STS service to get the identity of the requestor. Save the policy as authn-iam-host.yml, and load it to root:Ĭonjur policy load -b root -f /path/to/file/ authn-iam-host.ymlįor more information, see Configure authenticators.Īfter you have configured the IAM Authenticator and have granted permissions, let's explore the authentication flow of an EC2 instance or a Lambda function: Role: !group conjur/authn-iam/prod/clients Their value extends beyond applications such as cross-account access, AWS IAM Roles Anywhere, and identity federation, being important for enhancing any organization’s security posture substantially. # Give the host permission to authenticate using the IAM Authenticator IAM roles are key pillars supporting, not just the IAM service, but the entire authentication and authorization flow.

# Give the host in our layer permission to retrieve variables # The host ID needs to match the AWS ARN of the role we wish to authenticate # Create a layer to hold this application's hosts # Give the `secrets-users` group permission to retrieve variables # Create a group that will have permission to retrieve variables The AWS Account ID and name of the role are extracted by the IAM Authenticator from the getCallerIdentity. The application identity ( host id) in Conjur is composed of prefix/namespace, followed by the AWS account ID, followed by the name of the IAM role.

#AWS IAM AUTHENTICATOR PASSWORD#

In this step you define the Conjur application identity ( host) for the AWS resource and grant it access to secrets and permission to authenticate using IAM Authenticator.Ĭreate an application policy to provide a database username and password to an AWS service.

Aws iam authenticator