How Elastic Load Balancing works with IAM
Before you use IAM to manage access to Elastic Load Balancing, learn what IAM features are available to use with Elastic Load Balancing.
| IAM feature | Elastic Load Balancing support |
|---|---|
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Yes |
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No |
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Yes |
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Yes |
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Yes |
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No |
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Yes |
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Yes |
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Yes |
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No |
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Yes |
Identity-based policies for Elastic Load Balancing
Supports identity-based policies: Yes
Identity-based policies are JSON permissions policy documents that you can attach to an identity, such as an IAM user, group of users, or role. These policies control what actions users and roles can perform, on which resources, and under what conditions. To learn how to create an identity-based policy, see Define custom IAM permissions with customer managed policies in the IAM User Guide.
With IAM identity-based policies, you can specify allowed or denied actions and resources as well as the conditions under which actions are allowed or denied. To learn about all of the elements that you can use in a JSON policy, see IAM JSON policy elements reference in the IAM User Guide.
Resource-based policies within Elastic Load Balancing
Supports resource-based policies: No
Resource-based policies are JSON policy documents that you attach to a resource. Examples of resource-based policies are IAM role trust policies and Amazon S3 bucket policies. In services that support resource-based policies, service administrators can use them to control access to a specific resource. For the resource where the policy is attached, the policy defines what actions a specified principal can perform on that resource and under what conditions. You must specify a principal in a resource-based policy. Principals can include accounts, users, roles, federated users, or Amazon Web Services services.
To enable cross-account access, you can specify an entire account or IAM entities in another account as the principal in a resource-based policy. For more information, see Cross account resource access in IAM in the IAM User Guide.
Policy actions for Elastic Load Balancing
Supports policy actions: Yes
Administrators can use Amazon JSON policies to specify who has access to what. That is, which principal can perform actions on what resources, and under what conditions.
The Action element of a JSON policy describes the
actions that you can use to allow or deny access in a policy. Include actions in a policy to grant permissions to perform the associated operation.
To see a list of Elastic Load Balancing actions, see Actions defined by Elastic Load Balancing V2 and Actions defined by Elastic Load Balancing V1 in the Service Authorization Reference.
Policy actions in Elastic Load Balancing use the following prefix before the action:
elasticloadbalancing
To specify multiple actions in a single statement, separate them with commas.
"Action": [ "elasticloadbalancing:action1", "elasticloadbalancing:action2" ]
You can specify multiple actions using wildcards (*). For example, to specify
all actions that begin with the word Describe, include the following
action:
"Action": "elasticloadbalancing:Describe*"
For the complete list of the API actions for Elastic Load Balancing, see the following documentation:
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Application Load Balancers, Network Load Balancers, and Gateway Load Balancers — API Reference version 2015-12-01
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Classic Load Balancers — API Reference version 2012-06-01
Policy resources for Elastic Load Balancing
Supports policy resources: Yes
Administrators can use Amazon JSON policies to specify who has access to what. That is, which principal can perform actions on what resources, and under what conditions.
The Resource JSON policy element specifies the object or objects to which the action applies. As a best practice, specify a resource using its Amazon Resource Name (ARN). For actions that don't support resource-level permissions, use a wildcard (*) to indicate that the statement applies to all resources.
"Resource": "*"
Some Elastic Load Balancing API actions support multiple resources. To specify multiple resources in a single statement, separate the ARNs with commas.
"Resource": [ "resource1", "resource2" ]
To see a list of Elastic Load Balancing resource types and their ARNs, see Resources defined by Elastic Load Balancing V2 and Resources defined by Elastic Load Balancing V1 in the Service Authorization Reference. To learn with which actions you can specify the ARN of each resource, see Actions defined by Elastic Load Balancing V2 and Actions defined by Elastic Load Balancing V1.
Policy condition keys for Elastic Load Balancing
Supports service-specific policy condition keys: Yes
Administrators can use Amazon JSON policies to specify who has access to what. That is, which principal can perform actions on what resources, and under what conditions.
The Condition element specifies when statements execute based on defined criteria. You can create conditional expressions that use condition
operators, such as equals or less than, to match the condition in the
policy with values in the request. To see all Amazon global
condition keys, see Amazon global condition context keys in the
IAM User Guide.
To see a list of Elastic Load Balancing condition keys, see Condition keys for Elastic Load Balancing V2 and Condition keys for Elastic Load Balancing V1 in the Service Authorization Reference. To learn with which actions and resources you can use a condition key, see Actions defined by Elastic Load Balancing V2 and Actions defined by Elastic Load Balancing V1.
Condition keys
elasticloadbalancing:ListenerProtocol condition key
The elasticloadbalancing:ListenerProtocol condition key can be used
for conditions that define the types of listeners that can be created and used.
The policy is available for Application Load Balancers, Network Load Balancers, and Classic Load Balancers.
The following actions support this condition key:
API version 2015-12-01
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CreateListener -
ModifyListener
API version 2012-06-01
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CreateLoadBalancer -
CreateLoadBalancerListeners
The following example policy requires users to select the HTTPS protocol for the listeners for their Application Load Balancers and the TLS protocol for the listeners for their Network Load Balancers.
With a Classic Load Balancer, you can specify multiple listeners in a single call. Therefore, your policy must use a multi-value context key, as shown in the following example.
elasticloadbalancing:SecurityPolicy condition key
The elasticloadbalancing:SecurityPolicy condition key can be used
for conditions that define and enforce specific security policies on the load
balancers. The policy is available for Application Load Balancers, Network Load Balancers and Classic Load Balancers. The following
actions support this condition key:
API version 2015-12-01
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CreateListener -
ModifyListener
API version 2012-06-01
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CreateLoadBalancerPolicy -
SetLoadBalancerPoliciesOfListener
The following example policy requires users to select one of the specified security policies for their Application Load Balancers and Network Load Balancers.
elasticloadbalancing:Scheme condition key
The elasticloadbalancing:Scheme condition key can be
used for conditions that define which scheme can be selected during load balancer
creation. The policy is available for Application Load Balancers, Network Load Balancers, and Classic Load Balancers. The following
actions support this condition key:
API version 2015-12-01
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CreateLoadBalancer
API version 2012-06-01
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CreateLoadBalancer
The following example policy requires users to select the specified scheme for their load balancers.
elasticloadbalancing:SecurityGroup condition key
Important
Elastic Load Balancing accepts all capitalizations of security group IDs. However,
make sure to use the appropriate case insensitive condition
operators, for example StringEqualsIgnoreCase.
The elasticloadbalancing:SecurityGroup condition key can be used for
conditions that define which security groups can be applied to the load balancers.
The policy is available for Application Load Balancers, Network Load Balancers and Classic Load Balancers.
The following actions support this condition key:
API version 2015-12-01
-
CreateLoadBalancer -
SetSecurityGroups
API version 2012-06-01
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CreateLoadBalancer -
ApplySecurityGroupsToLoadBalancer
The following example policy requires users to select one of the specified security groups for their load balancers.
"Version": "2012-10-17", "Statement": { "Effect": "Allow", "Action": [ "elasticloadbalancing:CreateLoadBalancer", "elasticloadbalancing:SetSecurityGroup" ], "Resource": "*", "Condition": { "ForAnyValue:StringEqualsIgnoreCase":{ "elasticloadbalancing:SecurityGroup": [ "sg-51530134", "sg-51530144", "sg-51530139" ] }, } } }
elasticloadbalancing:Subnet condition key
Important
Elastic Load Balancing accepts all capitalizations of subnet IDs. However,
make sure to use the appropriate case insensitive condition
operators, for example StringEqualsIgnoreCase.
The elasticloadbalancing:Subnet condition key can
be used for conditions that define which subnets can be created and attached
to load balancers. The policy is available for Application Load Balancers, Network Load Balancers, Gateway Load Balancers and Classic Load Balancers.
The following actions support this condition key:
API version 2015-12-01
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CreateLoadBalancer -
SetSubnets
API version 2012-06-01
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CreateLoadBalancer -
AttachLoadBalancerToSubnets
The following example policy requires users to select one of the specified subnets for their load balancers.
elasticloadbalancing:ResourceTag condition key
The elasticloadbalancing:ResourceTag/key
condition key is specific to Elastic Load Balancing. All mutating actions support this condition
key.
ACLs in Elastic Load Balancing
Supports ACLs: No
Access control lists (ACLs) control which principals (account members, users, or roles) have permissions to access a resource. ACLs are similar to resource-based policies, although they do not use the JSON policy document format.
ABAC with Elastic Load Balancing
Supports ABAC (tags in policies): Yes
Attribute-based access control (ABAC) is an authorization strategy that defines permissions based on attributes called tags. You can attach tags to IAM entities and Amazon resources, then design ABAC policies to allow operations when the principal's tag matches the tag on the resource.
To control access based on tags, you provide tag information in the condition element of a policy using the aws:ResourceTag/,
key-nameaws:RequestTag/, or key-nameaws:TagKeys condition keys.
If a service supports all three condition keys for every resource type, then the value is Yes for the service. If a service supports all three condition keys for only some resource types, then the value is Partial.
For more information about ABAC, see Define permissions with ABAC authorization in the IAM User Guide. To view a tutorial with steps for setting up ABAC, see Use attribute-based access control (ABAC) in the IAM User Guide.
Using temporary credentials with Elastic Load Balancing
Supports temporary credentials: Yes
Temporary credentials provide short-term access to Amazon resources and are automatically created when you use federation or switch roles. Amazon recommends that you dynamically generate temporary credentials instead of using long-term access keys. For more information, see Temporary security credentials in IAM and Amazon Web Services services that work with IAM in the IAM User Guide.
Cross-service principal permissions for Elastic Load Balancing
Supports forward access sessions (FAS): Yes
Forward access sessions (FAS) use the permissions of the principal calling an Amazon Web Services service, combined with the requesting Amazon Web Services service to make requests to downstream services. For policy details when making FAS requests, see Forward access sessions.
Service roles for Elastic Load Balancing
Supports service roles: No
A service role is an IAM role that a service assumes to perform actions on your behalf. An IAM administrator can create, modify, and delete a service role from within IAM. For more information, see Create a role to delegate permissions to an Amazon Web Services service in the IAM User Guide.
Service-linked roles for Elastic Load Balancing
Supports service-linked roles: Yes
A service-linked role is a type of service role that is linked to an Amazon Web Services service. The service can assume the role to perform an action on your behalf. Service-linked roles appear in your Amazon Web Services account and are owned by the service. An IAM administrator can view, but not edit the permissions for service-linked roles.
For details about creating or managing Elastic Load Balancing service-linked roles, see Elastic Load Balancing service-linked role.