Elastic Load Balancing - Version 2 examples using Amazon CLI

To add a certificate to a secure listener

This example adds the specified certificate to the specified secure listener.

Command:

aws elbv2 add-listener-certificates --listener-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2 --certificates CertificateArn=arn:aws:acm:us-west-2:123456789012:certificate/5cc54884-f4a3-4072-80be-05b9ba72f705

Output:

{
  "Certificates": [
      {
          "CertificateArn": "arn:aws:acm:us-west-2:123456789012:certificate/5cc54884-f4a3-4072-80be-05b9ba72f705",
          "IsDefault": false
      }
  ]
}

To add tags to a load balancer

The following add-tags example adds the project and department tags to the specified load balancer.

aws elbv2 add-tags \
    --resource-arns arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 \
    --tags "Key=project,Value=lima" "Key=department,Value=digital-media"

Example 1: To create an HTTP listener

The following create-listener example creates an HTTP listener for the specified Application Load Balancer that forwards requests to the specified target group.

aws elbv2 create-listener \
    --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 \
    --protocol HTTP \
    --port 80 \
    --default-actions Type=forward,TargetGroupArn=arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067

For more information, see Tutorial: Create an Application Load Balancer using the Amazon CLI in the User Guide for Application Load Balancers.

Example 2: To create an HTTPS listener

The following create-listener example creates an HTTPS listener for the specified Application Load Balancer that forwards requests to the specified target group. You must specify an SSL certificate for an HTTPS listener. You can create and manage certificates using Amazon Certificate Manager (ACM). Alternatively, you can create a certificate using SSL/TLS tools, get the certificate signed by a certificate authority (CA), and upload the certificate to Amazon Identity and Access Management (IAM).

aws elbv2 create-listener \
    --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 \
    --protocol HTTPS \
    --port 443 \
    --certificates CertificateArn=arn:aws:acm:us-west-2:123456789012:certificate/3dcb0a41-bd72-4774-9ad9-756919c40557 \
    --ssl-policy ELBSecurityPolicy-2016-08 \
    --default-actions Type=forward,TargetGroupArn=arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067

For more information, see Add an HTTPS listener in the User Guide for Application Load Balancers.

Example 3: To create a TCP listener

The following create-listener example creates a TCP listener for the specified Network Load Balancer that forwards requests to the specified target group.

aws elbv2 create-listener \
    --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/net/my-network-load-balancer/5d1b75f4f1cee11e \
    --protocol TCP \
    --port 80 \
    --default-actions Type=forward,TargetGroupArn=arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-tcp-targets/b6bba954d1361c78

For more information, see Tutorial: Create a Network Load Balancer using the Amazon CLI in the User Guide for Network Load Balancers.

Example 4: To create a TLS listener

The following create-listener example creates a TLS listener for the specified Network Load Balancer that forwards requests to the specified target group. You must specify an SSL certificate for a TLS listener.

aws elbv2 create-listener \
    --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 \
    --protocol TLS \
    --port 443 \
    --certificates CertificateArn=arn:aws:acm:us-west-2:123456789012:certificate/3dcb0a41-bd72-4774-9ad9-756919c40557 \
    --ssl-policy ELBSecurityPolicy-2016-08 \
    --default-actions Type=forward,TargetGroupArn=arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067

For more information, see TLS listeners for your Network Load Balancer in the User Guide for Network Load Balancers.

Example 5: To create a UDP listener

The following create-listener example creates a UDP listener for the specified Network Load Balancer that forwards requests to the specified target group.

aws elbv2 create-listener \
    --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/net/my-network-load-balancer/5d1b75f4f1cee11e \
    --protocol UDP \
    --port 53 \
    --default-actions Type=forward,TargetGroupArn=arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-tcp-targets/b6bba954d1361c78

For more information, see Tutorial: Create a Network Load Balancer using the Amazon CLI in the User Guide for Network Load Balancers.

Example 6: To create a listener for the specified gateway and forwarding

The following create-listener example creates a listener for the specified Gateway Load Balancer that forwards requests to the specified target group.

aws elbv2 create-listener \
    --load-balancer-arn arn:aws:elasticloadbalancing:us-east-1:850631746142:loadbalancer/gwy/my-gateway-load-balancer/e0f9b3d5c7f7d3d6 \
    --default-actions Type=forward,TargetGroupArn=arn:aws:elasticloadbalancing:us-east-1:850631746142:targetgroup/my-glb-targets/007ca469fae3bb1615

Output:

{
    "Listeners": [
        {
            "ListenerArn": "arn:aws:elasticloadbalancing:us-east-1:850631746142:listener/gwy/my-agw-lb-example2/e0f9b3d5c7f7d3d6/afc127db15f925de",
            "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-east-1:850631746142:loadbalancer/gwy/my-agw-lb-example2/e0f9b3d5c7f7d3d6",
            "DefaultActions": [
                {
                    "Type": "forward",
                    "TargetGroupArn": "arn:aws:elasticloadbalancing:us-east-1:850631746142:targetgroup/test-tg-agw-2/007ca469fae3bb1615",
                    "ForwardConfig": {
                        "TargetGroups": [
                            {
                                "TargetGroupArn": "arn:aws:elasticloadbalancing:us-east-1:850631746142:targetgroup/test-tg-agw-2/007ca469fae3bb1615"
                            }
                        ]
                    }
                }
            ]
        }
    ]
}

For more information, see Getting started with Gateway Load Balancers using the Amazon CLI in the User Guide for Gateway Load Balancers.

Example 1: To create an Internet-facing load balancer

The following create-load-balancer example creates an Internet-facing Application Load Balancer and enables the Availability Zones for the specified subnets.

aws elbv2 create-load-balancer \
    --name my-load-balancer \
    --subnets subnet-b7d581c0 subnet-8360a9e7

Output:

{
    "LoadBalancers": [
        {
            "Type": "application",
            "Scheme": "internet-facing",
            "IpAddressType": "ipv4",
            "VpcId": "vpc-3ac0fb5f",
            "AvailabilityZones": [
                {
                    "ZoneName": "us-west-2a",
                    "SubnetId": "subnet-8360a9e7"
                },
                {
                    "ZoneName": "us-west-2b",
                    "SubnetId": "subnet-b7d581c0"
                }
            ],
            "CreatedTime": "2017-08-25T21:26:12.920Z",
            "CanonicalHostedZoneId": "Z2P70J7EXAMPLE",
            "DNSName": "my-load-balancer-424835706.us-west-2.elb.amazonaws.com",
            "SecurityGroups": [
                "sg-5943793c"
            ],
            "LoadBalancerName": "my-load-balancer",
            "State": {
                "Code": "provisioning"
            },
            "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188"
        }
    ]
}

For more information, see Tutorial: Create an Application Load Balancer using the Amazon CLI in the User Guide for Application Load Balancers.

Example 2: To create an internal load balancer

The following create-load-balancer example creates an internal Application Load Balancer and enables the Availability Zones for the specified subnets.

aws elbv2 create-load-balancer \
    --name my-internal-load-balancer \
    --scheme internal \
    --subnets subnet-b7d581c0 subnet-8360a9e7

Output:

{
    "LoadBalancers": [
        {
            "Type": "application",
            "Scheme": "internal",
            "IpAddressType": "ipv4",
            "VpcId": "vpc-3ac0fb5f",
            "AvailabilityZones": [
                {
                    "ZoneName": "us-west-2a",
                    "SubnetId": "subnet-8360a9e7"
                },
                {
                    "ZoneName": "us-west-2b",
                    "SubnetId": "subnet-b7d581c0"
                }
            ],
            "CreatedTime": "2016-03-25T21:29:48.850Z",
            "CanonicalHostedZoneId": "Z2P70J7EXAMPLE",
            "DNSName": "internal-my-internal-load-balancer-1529930873.us-west-2.elb.amazonaws.com",
            "SecurityGroups": [
                "sg-5943793c"
            ],
            "LoadBalancerName": "my-internal-load-balancer",
            "State": {
                "Code": "provisioning"
            },
            "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-internal-load-balancer/5b49b8d4303115c2"
        }
    ]
}

For more information, see Tutorial: Create an Application Load Balancer using the Amazon CLI in the User Guide for Application Load Balancers.

Example 3: To create a Network Load Balancer

The following create-load-balancer example creates an Internet-facing Network Load Balancer and enables the Availability Zone for the specified subnet. It uses a subnet mapping to associate the specified Elastic IP address with the network interface used by the load balancer nodes for the Availability Zone.

aws elbv2 create-load-balancer \
    --name my-network-load-balancer \
    --type network \
    --subnet-mappings SubnetId=subnet-b7d581c0,AllocationId=eipalloc-64d5890a

Output:

{
    "LoadBalancers": [
        {
            "Type": "network",
            "Scheme": "internet-facing",
            "IpAddressType": "ipv4",
            "VpcId": "vpc-3ac0fb5f",
            "AvailabilityZones": [
                {
                    "LoadBalancerAddresses": [
                        {
                            "IpAddress": "35.161.207.171",
                            "AllocationId": "eipalloc-64d5890a"
                        }
                    ],
                    "ZoneName": "us-west-2b",
                    "SubnetId": "subnet-5264e837"
                }
            ],
            "CreatedTime": "2017-10-15T22:41:25.657Z",
            "CanonicalHostedZoneId": "Z2P70J7EXAMPLE",
            "DNSName": "my-network-load-balancer-5d1b75f4f1cee11e.elb.us-west-2.amazonaws.com",
            "LoadBalancerName": "my-network-load-balancer",
            "State": {
                "Code": "provisioning"
            },
            "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/net/my-network-load-balancer/5d1b75f4f1cee11e"
        }
    ]
}

For more information, see Tutorial: Create a Network Load Balancer using the Amazon CLI in the User Guide for Network Load Balancers.

Example 4: To create a Gateway Load Balancer

The following create-load-balancer example creates a Gateway Load Balancer and enables the Availability Zones for the specified subnets.

aws elbv2 create-load-balancer \
    --name my-gateway-load-balancer \
    --type gateway \
    --subnets subnet-dc83f691 subnet-a62583f9

Output:

{
    "LoadBalancers": [
        {
            "Type": "gateway",
            "VpcId": "vpc-838475fe",
            "AvailabilityZones": [
                {
                    "ZoneName": "us-east-1b",
                    "SubnetId": "subnet-a62583f9"
                },
            {
                    "ZoneName": "us-east-1a",
                    "SubnetId": "subnet-dc83f691"
                }
            ],
            "CreatedTime": "2021-07-14T19:33:43.324000+00:00",
            "LoadBalancerName": "my-gateway-load-balancer",
            "State": {
                "Code": "provisioning"
            },
            "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-east-1:850631746142:loadbalancer/gwy/my-gateway-load-balancer/dfbb5a7d32cdee79"
        }
    ]
}

For more information, see Getting started with Gateway Load Balancers using the Amazon CLI in the User Guide for Gateway Load Balancers.

Example 1: To create a rule using a path condition and a forward action

The following create-rule example creates a rule that forwards requests to the specified target group if the URL contains the specified pattern.

aws elbv2 create-rule \
    --listener-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2 \
    --priority 5 \
    --conditions file://conditions-pattern.json
    --actions Type=forward,TargetGroupArn=arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067

Contents of conditions-pattern.json:

[
    {
        "Field": "path-pattern",
        "PathPatternConfig": {
            "Values": ["/images/*"]
        }
    }
]

Example 2: To create a rule using a host condition and a fixed response

The following create-rule example creates a rule that provides a fixed response if the hostname in the host header matches the specified hostname.

aws elbv2 create-rule \
    --listener-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2 \
    --priority 10 \
    --conditions file://conditions-host.json \
    --actions file://actions-fixed-response.json

Contents of conditions-host.json

[
  {
      "Field": "host-header",
      "HostHeaderConfig": {
          "Values": ["*.example.com"]
      }
  }
]

Contents of actions-fixed-response.json

[
    {
        "Type": "fixed-response",
        "FixedResponseConfig": {
            "MessageBody": "Hello world",
            "StatusCode": "200",
            "ContentType": "text/plain"
        }
    }
]

Example 3: To create a rule using a source IP address condition, an authenticate action, and a forward action

The following create-rule example creates a rule that authenticates the user if the source IP address matches the specified IP address, and forwards the request to the specified target group if authentication is successful.

aws elbv2 create-rule \
    --listener-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2 \
    --priority 20 \
    --conditions file://conditions-source-ip.json \
    --actions file://actions-authenticate.json

Contents of conditions-source-ip.json

[
    {
        "Field": "source-ip",
        "SourceIpConfig": {
            "Values": ["192.0.2.0/24", "198.51.100.10/32"]
        }
    }
]

Contents of actions-authenticate.json

[
    {
        "Type": "authenticate-oidc",
        "AuthenticateOidcConfig": {
            "Issuer": "https://idp-issuer.com",
            "AuthorizationEndpoint": "https://authorization-endpoint.com",
            "TokenEndpoint": "https://token-endpoint.com",
            "UserInfoEndpoint": "https://user-info-endpoint.com",
            "ClientId": "abcdefghijklmnopqrstuvwxyz123456789",
            "ClientSecret": "123456789012345678901234567890",
            "SessionCookieName": "my-cookie",
            "SessionTimeout": 3600,
            "Scope": "email",
            "AuthenticationRequestExtraParams": {
                "display": "page",
                "prompt": "login"
            },
            "OnUnauthenticatedRequest": "deny"
        },
        "Order": 1
    },
    {
        "Type": "forward",
        "TargetGroupArn": "arn:aws:elasticloadbalancing:us-east-1:880185128111:targetgroup/cli-test/642a97ecb0e0f26b",
        "Order": 2
    }
]

Example 1: To create a target group for an Application Load Balancer

The following create-target-group example creates a target group for an Application Load Balancer where you register targets by instance ID (the target type is instance). This target group uses the HTTP protocol, port 80, and the default health check settings for an HTTP target group.

aws elbv2 create-target-group \
    --name my-targets \
    --protocol HTTP \
    --port 80 \
    --target-type instance \
    --vpc-id vpc-3ac0fb5f

Output:

{
    "TargetGroups": [
        {
            "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067",
            "TargetGroupName": "my-targets",
            "Protocol": "HTTP",
            "Port": 80,
            "VpcId": "vpc-3ac0fb5f",
            "HealthCheckProtocol": "HTTP",
            "HealthCheckPort": "traffic-port",
            "HealthCheckEnabled": true,
            "HealthCheckIntervalSeconds": 30,
            "HealthCheckTimeoutSeconds": 5,
            "HealthyThresholdCount": 5,
            "UnhealthyThresholdCount": 2,
            "HealthCheckPath": "/",
            "Matcher": {
                "HttpCode": "200"
            },
            "TargetType": "instance",
            "ProtocolVersion": "HTTP1",
            "IpAddressType": "ipv4"
        }
    ]
}

For more information, see Create a target group in the User Guide for Application Load Balancers.

Example 2: To create a target group to route traffic from an Application Load Balancer to a Lambda function

The following create-target-group example creates a target group for an Application Load Balancer where the target is a Lambda function (the target type is lambda). Health checks are disabled for this target group by default.

aws elbv2 create-target-group \
    --name my-lambda-target \
    --target-type lambda

Output:

{
    "TargetGroups": [
        {
            "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-lambda-target/a3003e085dbb8ddc",
            "TargetGroupName": "my-lambda-target",
            "HealthCheckEnabled": false,
            "HealthCheckIntervalSeconds": 35,
            "HealthCheckTimeoutSeconds": 30,
            "HealthyThresholdCount": 5,
            "UnhealthyThresholdCount": 2,
            "HealthCheckPath": "/",
            "Matcher": {
                "HttpCode": "200"
            },
            "TargetType": "lambda",
            "IpAddressType": "ipv4"
        }
    ]
}

For more information, see Lambda functions as targets in the User Guide for Application Load Balancers.

Example 3: To create a target group for a Network Load Balancer

The following create-target-group example creates a target group for a Network Load Balancer where you register targets by IP address (the target type is ip). This target group uses the TCP protocol, port 80, and the default health check settings for a TCP target group.

aws elbv2 create-target-group \
    --name my-ip-targets \
    --protocol TCP \
    --port 80 \
    --target-type ip \
    --vpc-id vpc-3ac0fb5f

Output:

{
    "TargetGroups": [
        {
            "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-ip-targets/b6bba954d1361c78",
            "TargetGroupName": "my-ip-targets",
            "Protocol": "TCP",
            "Port": 80,
            "VpcId": "vpc-3ac0fb5f",
            "HealthCheckEnabled": true,
            "HealthCheckProtocol": "TCP",
            "HealthCheckPort": "traffic-port",
            "HealthCheckIntervalSeconds": 30,
            "HealthCheckTimeoutSeconds": 10,
            "HealthyThresholdCount": 5,
            "UnhealthyThresholdCount": 2,
            "TargetType": "ip",
            "IpAddressType": "ipv4"
        }
    ]
}

For more information, see Create a target group in the User Guide for Network Load Balancers.

Example 4: To create a target group to route traffic from a Network Load Balancer to an Application Load Balancer

The following create-target-group example creates a target group for a Network Load Balancer where you register an Application Load Balancer as a target (the target type is alb).

aws elbv2 create-target-group --name my-alb-target --protocol TCP --port 80 --target-type alb --vpc-id vpc-3ac0fb5f

Output:

{
    "TargetGroups": [
        {
            "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-alb-target/a3003e085dbb8ddc",
            "TargetGroupName": "my-alb-target",
            "Protocol": "TCP",
            "Port": 80,
            "VpcId": "vpc-838475fe",
            "HealthCheckProtocol": "HTTP",
            "HealthCheckPort": "traffic-port",
            "HealthCheckEnabled": true,
            "HealthCheckIntervalSeconds": 30,
            "HealthCheckTimeoutSeconds": 6,
            "HealthyThresholdCount": 5,
            "UnhealthyThresholdCount": 2,
            "HealthCheckPath": "/",
            "Matcher": {
                "HttpCode": "200-399"
            },
            "TargetType": "alb",
            "IpAddressType": "ipv4"
        }
    ]
}

For more information, see Create a target group with an Application Load Balancer as the target in the User Guide for Network Load Balancers.

Example 5: To create a target group for a Gateway Load Balancer

The following create-target-group example creates a target group for a Gateway Load Balancer where the target is an instance, and the target group protocol is GENEVE.

aws elbv2 create-target-group \
    --name my-glb-targetgroup \
    --protocol GENEVE \
    --port 6081 \
    --target-type instance \
    --vpc-id vpc-838475fe

Output:

{
    "TargetGroups": [
        {
            "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-glb-targetgroup/00c3d57eacd6f40b6f",
            "TargetGroupName": "my-glb-targetgroup",
            "Protocol": "GENEVE",
            "Port": 6081,
            "VpcId": "vpc-838475fe",
            "HealthCheckProtocol": "TCP",
            "HealthCheckPort": "80",
            "HealthCheckEnabled": true,
            "HealthCheckIntervalSeconds": 10,
            "HealthCheckTimeoutSeconds": 5,
            "HealthyThresholdCount": 5,
            "UnhealthyThresholdCount": 2,
            "TargetType": "instance"
        }
    ]
}

For more information, see Create a target group <https://docs.aws.amazon.com/elasticloadbalancing/latest/gateway/create-target-group.html>`__ in the Gateway Load Balancer User Guide.

To delete a listener

The following delete-listener example deletes the specified listener.

aws elbv2 delete-listener \
    --listener-arn arn:aws:elasticloadbalancing:ua-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2

To delete a load balancer

The following delete-load-balancer example deletes the specified load balancer.

aws elbv2 delete-load-balancer \
    --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188

To delete a rule

The following delete-rule example deletes the specified rule.

aws elbv2 delete-rule \
    --rule-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener-rule/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2/1291d13826f405c3

To delete a target group

The following delete-target-group example deletes the specified target group.

aws elbv2 delete-target-group \
    --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067

This command produces no output.

For more information, see Delete a load balancer in the Application Load Balancer Guide.

Example 1: To deregister a target from a target group

The following deregister-targets example removes the specified instance from the specified target group.

aws elbv2 deregister-targets \
    --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067 \
    --targets Id=i-1234567890abcdef0

Example 2: To deregister a target registered using port overrides

The following deregister-targets example removes an instance from a target group that was registered using port overrides.

aws elbv2 deregister-targets \
    --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-internal-targets/3bb63f11dfb0faf9 \
    --targets Id=i-1234567890abcdef0,Port=80 Id=i-1234567890abcdef0,Port=766

To describe your Elastic Load Balancing limits

The following describe-account-limits example displays the Elastic Load Balancing limits for your Amazon account in the current Region.

aws elbv2 describe-account-limits

Output:

{
    "Limits": [
        {
            "Name": "target-groups",
            "Max": "3000"
        },
        {
            "Name": "targets-per-application-load-balancer",
            "Max": "1000"
        },
        {
            "Name": "listeners-per-application-load-balancer",
            "Max": "50"
        },
        {
            "Name": "rules-per-application-load-balancer",
            "Max": "100"
        },
        {
            "Name": "network-load-balancers",
            "Max": "50"
        },
        {
            "Name": "targets-per-network-load-balancer",
            "Max": "3000"
        },
        {
            "Name": "targets-per-availability-zone-per-network-load-balancer",
            "Max": "500"
        },
        {
            "Name": "listeners-per-network-load-balancer",
            "Max": "50"
        },
        {
            "Name": "condition-values-per-alb-rule",
            "Max": "5"
        },
        {
            "Name": "condition-wildcards-per-alb-rule",
            "Max": "5"
        },
        {
            "Name": "target-groups-per-application-load-balancer",
            "Max": "100"
        },
        {
            "Name": "target-groups-per-action-on-application-load-balancer",
            "Max": "5"
        },
        {
            "Name": "target-groups-per-action-on-network-load-balancer",
            "Max": "1"
        },
        {
            "Name": "certificates-per-application-load-balancer",
            "Max": "25"
        },
        {
            "Name": "certificates-per-network-load-balancer",
            "Max": "25"
        },
        {
            "Name": "targets-per-target-group",
            "Max": "1000"
        },
        {
            "Name": "target-id-registrations-per-application-load-balancer",
            "Max": "1000"
        },
        {
            "Name": "network-load-balancer-enis-per-vpc",
            "Max": "1200"
        },
        {
            "Name": "application-load-balancers",
            "Max": "50"
        },
        {
            "Name": "gateway-load-balancers",
            "Max": "100"
        },
        {
            "Name": "gateway-load-balancers-per-vpc",
            "Max": "100"
        },
        {
            "Name": "geneve-target-groups",
            "Max": "100"
        },
        {
            "Name": "targets-per-availability-zone-per-gateway-load-balancer",
            "Max": "300"
        }
    ]
}

For more information, see Quotas in the Amazon General Reference.

To describe the certificates for a secure listener

This example describes the certificates for the specified secure listener.

Command:

aws elbv2 describe-listener-certificates --listener-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2

Output:

{
  "Certificates": [
      {
          "CertificateArn": "arn:aws:acm:us-west-2:123456789012:certificate/5cc54884-f4a3-4072-80be-05b9ba72f705",
          "IsDefault": false
      },
      {
          "CertificateArn": "arn:aws:acm:us-west-2:123456789012:certificate/3dcb0a41-bd72-4774-9ad9-756919c40557",
          "IsDefault": false
      },
      {
          "CertificateArn": "arn:aws:acm:us-west-2:123456789012:certificate/fe59da96-6f58-4a22-8eed-6d0d50477e1d",
          "IsDefault": true
      }
  ]
}

To describe a listener

This example describes the specified listener.

Command:

aws elbv2 describe-listeners --listener-arns arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2

Output:

{
  "Listeners": [
      {
          "Port": 80,
          "Protocol": "HTTP",
          "DefaultActions": [
              {
                  "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067",
                  "Type": "forward"
              }
          ],
          "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188",
          "ListenerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2"
      }
  ]
}

To describe the listeners for a load balancer

This example describe the listeners for the specified load balancer.

Command:

aws elbv2 describe-listeners --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188

Output:

{
  "Listeners": [
      {
          "Port": 443,
          "Protocol": "HTTPS",
          "DefaultActions": [
              {
                  "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067",
                  "Type": "forward"
              }
          ],
          "SslPolicy": "ELBSecurityPolicy-2015-05",
          "Certificates": [
              {
                  "CertificateArn": "arn:aws:iam::123456789012:server-certificate/my-server-cert"
              }
          ],
          "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188",
          "ListenerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/0467ef3c8400ae65"
      },
      {
          "Port": 80,
          "Protocol": "HTTP",
          "DefaultActions": [
              {
                  "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067",
                  "Type": "forward"
              }
          ],
          "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188",
          "ListenerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2"
      }
  ]
}

To describe load balancer attributes

The following describe-load-balancer-attributes example displays the attributes of the specified load balancer.

aws elbv2 describe-load-balancer-attributes \
    --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188

The following example output show the attributes for an Application Load Balancer.

{
    "Attributes": [
        {
            "Value": "false",
            "Key": "access_logs.s3.enabled"
        },
        {
            "Value": "",
            "Key": "access_logs.s3.bucket"
        },
        {
            "Value": "",
            "Key": "access_logs.s3.prefix"
        },
        {
            "Value": "60",
            "Key": "idle_timeout.timeout_seconds"
        },
        {
            "Value": "false",
            "Key": "deletion_protection.enabled"
        },
        {
            "Value": "true",
            "Key": "routing.http2.enabled"
        }
    ]
}

The following example output includes the attributes for a Network Load Balancer.

{
    "Attributes": [
        {
            "Value": "false",
            "Key": "access_logs.s3.enabled"
        },
        {
            "Value": "",
            "Key": "access_logs.s3.bucket"
        },
        {
            "Value": "",
            "Key": "access_logs.s3.prefix"
        },
        {
            "Value": "false",
            "Key": "deletion_protection.enabled"
        },
        {
            "Value": "false",
            "Key": "load_balancing.cross_zone.enabled"
        }
    ]
}

To describe a load balancer

This example describes the specified load balancer.

Command:

aws elbv2 describe-load-balancers --load-balancer-arns arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188

Output:

{
  "LoadBalancers": [
      {
          "Type": "application",
          "Scheme": "internet-facing",
          "IpAddressType": "ipv4",
          "VpcId": "vpc-3ac0fb5f",
          "AvailabilityZones": [
              {
                  "ZoneName": "us-west-2a",
                  "SubnetId": "subnet-8360a9e7"
              },
              {
                  "ZoneName": "us-west-2b",
                  "SubnetId": "subnet-b7d581c0"
              }
          ],
          "CreatedTime": "2016-03-25T21:26:12.920Z",
          "CanonicalHostedZoneId": "Z2P70J7EXAMPLE",
          "DNSName": "my-load-balancer-424835706.us-west-2.elb.amazonaws.com",
          "SecurityGroups": [
              "sg-5943793c"
          ],
          "LoadBalancerName": "my-load-balancer",
          "State": {
              "Code": "active"
          },
          "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188"
      }
  ]
}

To describe all load balancers

This example describes all of your load balancers.

Command:

aws elbv2 describe-load-balancers

Example 1: To describe a rule

The following describe-rules example displays details for the specified rule.

aws elbv2 describe-rules \
    --rule-arns arn:aws:elasticloadbalancing:us-west-2:123456789012:listener-rule/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2/9683b2d02a6cabee

Example 2: To describe the rules for a listener

The following describe-rules example displays details for the rules for the specified listener. The output includes the default rule and any other rules that you've added.

aws elbv2 describe-rules \
    --listener-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2

Example 1: To list the policies used for SSL negotiation by load balancer type

The following describe-ssl-policies example displays the names of the polices that you can use for SSL negotiation with an Application Load Balancer. The example uses the --query parameter to display only the names of the policies.

aws elbv2 describe-ssl-policies \
    --load-balancer-type application \
    --query SslPolicies[*].Name

Output:

[
    "ELBSecurityPolicy-2016-08",
    "ELBSecurityPolicy-TLS13-1-2-2021-06",
    "ELBSecurityPolicy-TLS13-1-2-Res-2021-06",
    "ELBSecurityPolicy-TLS13-1-2-Ext1-2021-06",
    "ELBSecurityPolicy-TLS13-1-2-Ext2-2021-06",
    "ELBSecurityPolicy-TLS13-1-1-2021-06",
    "ELBSecurityPolicy-TLS13-1-0-2021-06",
    "ELBSecurityPolicy-TLS13-1-3-2021-06",
    "ELBSecurityPolicy-TLS-1-2-2017-01",
    "ELBSecurityPolicy-TLS-1-1-2017-01",
    "ELBSecurityPolicy-TLS-1-2-Ext-2018-06",
    "ELBSecurityPolicy-FS-2018-06",
    "ELBSecurityPolicy-2015-05",
    "ELBSecurityPolicy-TLS-1-0-2015-04",
    "ELBSecurityPolicy-FS-1-2-Res-2019-08",
    "ELBSecurityPolicy-FS-1-1-2019-08",
    "ELBSecurityPolicy-FS-1-2-2019-08",
    "ELBSecurityPolicy-FS-1-2-Res-2020-10"
]

Example 2: To list the policies that support a specific protocol

The following describe-ssl-policies example displays the names of the polices that support the TLS 1.3 protocol. The example uses the --query parameter to display only the names of the policies.

aws elbv2 describe-ssl-policies \
    --load-balancer-type application \
    --query SslPolicies[?contains(SslProtocols,'TLSv1.3')].Name

Output:

[
    "ELBSecurityPolicy-TLS13-1-2-2021-06",
    "ELBSecurityPolicy-TLS13-1-2-Res-2021-06",
    "ELBSecurityPolicy-TLS13-1-2-Ext1-2021-06",
    "ELBSecurityPolicy-TLS13-1-2-Ext2-2021-06",
    "ELBSecurityPolicy-TLS13-1-1-2021-06",
    "ELBSecurityPolicy-TLS13-1-0-2021-06",
    "ELBSecurityPolicy-TLS13-1-3-2021-06"
]

Example 3: To display the ciphers for a policy

The following describe-ssl-policies example displays the names of the ciphers for the specified policy. The example uses the --query parameter to display only the cipher names. The first cipher in the list has priority 1, and the remaining ciphers are in priority order.

aws elbv2 describe-ssl-policies \
    --names ELBSecurityPolicy-TLS13-1-2-2021-06 \
    --query SslPolicies[*].Ciphers[*].Name

Output:

[
    "TLS_AES_128_GCM_SHA256",
    "TLS_AES_256_GCM_SHA384",
    "TLS_CHACHA20_POLY1305_SHA256",
    "ECDHE-ECDSA-AES128-GCM-SHA256",
    "ECDHE-RSA-AES128-GCM-SHA256",
    "ECDHE-ECDSA-AES128-SHA256",
    "ECDHE-RSA-AES128-SHA256",
    "ECDHE-ECDSA-AES256-GCM-SHA384",
    "ECDHE-RSA-AES256-GCM-SHA384",
    "ECDHE-ECDSA-AES256-SHA384",
    "ECDHE-RSA-AES256-SHA384"
]

For more information, see Security policies in the User Guide for Application Load Balancers.

To describe the tags assigned to a load balancer

This example describes the tags assigned to the specified load balancer.

Command:

aws elbv2 describe-tags --resource-arns arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188

Output:

{
  "TagDescriptions": [
      {
          "ResourceArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188",
          "Tags": [
              {
                  "Value": "lima",
                  "Key": "project"
              },
              {
                  "Value": "digital-media",
                  "Key": "department"
              }
          ]
      }
  ]
}

To describe target group attributes

The following describe-target-group-attributes example displays the attributes of the specified target group.

aws elbv2 describe-target-group-attributes \
    --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067

The output includes the attributes if the protocol is HTTP or HTTPS and the target type is instance or ip.

{
    "Attributes": [
        {
            "Value": "false",
            "Key": "stickiness.enabled"
        },
        {
            "Value": "300",
            "Key": "deregistration_delay.timeout_seconds"
        },
        {
            "Value": "lb_cookie",
            "Key": "stickiness.type"
        },
        {
            "Value": "86400",
            "Key": "stickiness.lb_cookie.duration_seconds"
        },
        {
            "Value": "0",
            "Key": "slow_start.duration_seconds"
        }
    ]
}

The following output includes the attributes if the protocol is HTTP or HTTPS and the target type is lambda.

{
    "Attributes": [
        {
            "Value": "false",
            "Key": "lambda.multi_value_headers.enabled"
        }
    ]
}

The following output includes the attributes if the protocol is TCP, TLS, UDP, or TCP_UDP.

{
    "Attributes": [
        {
            "Value": "false",
            "Key": "proxy_protocol_v2.enabled"
        },
        {
            "Value": "300",
            "Key": "deregistration_delay.timeout_seconds"
        }
    ]
}

Example 1: To describe a target group

The following describe-target-groups example displays details for the specified target group.

aws elbv2 describe-target-groups \
    --target-group-arns arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067

Output:

{
    "TargetGroups": [
        {
            "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067",
            "TargetGroupName": "my-targets",
            "Protocol": "HTTP",
            "Port": 80,
            "VpcId": "vpc-3ac0fb5f",
            "HealthCheckProtocol": "HTTP",
            "HealthCheckPort": "traffic-port",
            "HealthCheckEnabled": true,
            "HealthCheckIntervalSeconds": 30,
            "HealthCheckTimeoutSeconds": 5,
            "HealthyThresholdCount": 5,
            "UnhealthyThresholdCount": 2,
            "HealthCheckPath": "/",
            "Matcher": {
                "HttpCode": "200"
            },
            "LoadBalancerArns": [
                "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188"
            ],
            "TargetType": "instance",
            "ProtocolVersion": "HTTP1",
            "IpAddressType": "ipv4"
        }
    ]
}

Example 2: To describe all target groups for a load balancer

The following describe-target-groups example displays details for all target groups for the specified load balancer. The example uses the --query parameter to display only the target group names.

aws elbv2 describe-target-groups \
    --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 \
    --query TargetGroups[*].TargetGroupName

Output:

[
    "my-instance-targets",
    "my-ip-targets",
    "my-lambda-target"
]

For more information, see Target groups in the Applicaion Load Balancers Guide.

Example 1: To describe the health of the targets for a target group

The following describe-target-health example displays health details for the targets of the specified target group. These targets are healthy.

aws elbv2 describe-target-health \
    --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067

Output:

{
    "TargetHealthDescriptions": [
        {
            "HealthCheckPort": "80",
            "Target": {
                "Id": "i-ceddcd4d",
                "Port": 80
            },
            "TargetHealth": {
                "State": "healthy"
            }
        },
        {
            "HealthCheckPort": "80",
            "Target": {
                "Id": "i-0f76fade",
                "Port": 80
            },
            "TargetHealth": {
                "State": "healthy"
            }
        }
    ]
}

Example 2: To describe the health of a target

The following describe-target-health example displays health details for the specified target. This target is healthy.

aws elbv2 describe-target-health \
    --targets Id=i-0f76fade,Port=80 \
    --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067

Output:

{
    "TargetHealthDescriptions": [
        {
            "HealthCheckPort": "80",
            "Target": {
                "Id": "i-0f76fade",
                "Port": 80
            },
            "TargetHealth": {
                "State": "healthy"
            }
        }
    ]
}

The following example output is for a target whose target group is not specified in an action for a listener. This target can't receive traffic from the load balancer.

{
    "TargetHealthDescriptions": [
    {
        "HealthCheckPort": "80",
        "Target": {
            "Id": "i-0f76fade",
            "Port": 80
        },
            "TargetHealth": {
                "State": "unused",
                "Reason": "Target.NotInUse",
                "Description": "Target group is not configured to receive traffic from the load balancer"
            }
        }
    ]
}

The following example output is for a target whose target group was just specified in an action for a listener. The target is still being registered.

{
    "TargetHealthDescriptions": [
        {
            "HealthCheckPort": "80",
            "Target": {
                "Id": "i-0f76fade",
                "Port": 80
            },
            "TargetHealth": {
                "State": "initial",
                "Reason": "Elb.RegistrationInProgress",
                "Description": "Target registration is in progress"
            }
        }
    ]
}

The following example output is for an unhealthy target.

{
    "TargetHealthDescriptions": [
        {
            "HealthCheckPort": "80",
            "Target": {
                "Id": "i-0f76fade",
                "Port": 80
            },
            "TargetHealth": {
                "State": "unhealthy",
                "Reason": "Target.Timeout",
                "Description": "Connection to target timed out"
            }
        }
    ]
}

The following example output is for a target that is a Lambda function and health checks are disabled.

{
    "TargetHealthDescriptions": [
        {
            "Target": {
                "Id": "arn:aws:lambda:us-west-2:123456789012:function:my-function",
                "AvailabilityZone": "all",
            },
            "TargetHealth": {
                "State": "unavailable",
                "Reason": "Target.HealthCheckDisabled",
                "Description": "Health checks are not enabled for this target"
            }
        }
    ]
}

Example 1: To change the default action to a forward action

The following modify-listener example changes the default action to a forward action for the specified listener.

aws elbv2 modify-listener \
    --listener-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2 \
    --default-actions Type=forward,TargetGroupArn=arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-new-targets/2453ed029918f21f

Output:

{
    "Listeners": [
        {
            "ListenerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2",
            "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188",
            "Protocol": "HTTP",
            "Port": 80,
            "DefaultActions": [
                {
                    "Type": "forward",
                    "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-new-targets/2453ed029918f21f"
                }
            ]
        }
    ]
}

Example 2: To change the default action to a redirect action

The following modify-listener example changes the default action to a redirect action for the specified listener.

aws elbv2 modify-listener \
    --listener-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2 \
    --default-actions Type=redirect, RedirectConfig='{Protocol=HTTPS,StatusCode=HTTP_302}'

Output:

{
    "Listeners": [
        {
            "ListenerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2",
            "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188",
            "Protocol": "HTTP",
            "Port": 80,
            "DefaultActions": [
                {
                    "Type": "redirect",
                    "RedirectConfig": {
                        "Protocol": "HTTPS",
                        "Port": "#{port}",
                        "Host": "#{host}",
                        "Path": "/#{path}",
                        "Query": "#{query}",
                        "StatusCode": "HTTP_302",
                    }
                }
            ]
        }
    ]
}

Example 3: To change the server certificate

The following modify-listener example changes the server certificate for the specified HTTPS listener.

aws elbv2 modify-listener \
    --listener-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/0467ef3c8400ae65 \
    --certificates CertificateArn=arn:aws:iam::123456789012:server-certificate/my-new-server-cert

Output:

{
    "Listeners": [
        {
            "ListenerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/0467ef3c8400ae65",
            "LoadBalancerArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188",
            "Protocol": "HTTPS",
            "Port": 443,
            "DefaultActions": [
                {
                    "Type": "forward",
                    "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067"
                }
            ],
            "SslPolicy": "ELBSecurityPolicy-2015-05",
            "Certificates": [
                {
                    "CertificateArn": "arn:aws:iam::123456789012:server-certificate/my-new-server-cert"
                }
            ],
        }
    ]
}

For more information, see Listener rules in the Application Load Balancers User Guide.

To enable deletion protection

This example enables deletion protection for the specified load balancer.

Command:

aws elbv2 modify-load-balancer-attributes --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 --attributes Key=deletion_protection.enabled,Value=true

Output:

{
  "Attributes": [
      {
          "Value": "true",
          "Key": "deletion_protection.enabled"
      },
      {
          "Value": "false",
          "Key": "access_logs.s3.enabled"
      },
      {
          "Value": "60",
          "Key": "idle_timeout.timeout_seconds"
      },
      {
          "Value": "",
          "Key": "access_logs.s3.prefix"
      },
      {
          "Value": "",
          "Key": "access_logs.s3.bucket"
      }
  ]
}

To change the idle timeout

This example changes the idle timeout value for the specified load balancer.

Command:

aws elbv2 modify-load-balancer-attributes --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 --attributes Key=idle_timeout.timeout_seconds,Value=30

Output:

{
  "Attributes": [
      {
          "Value": "30",
          "Key": "idle_timeout.timeout_seconds"
      },
      {
          "Value": "false",
          "Key": "access_logs.s3.enabled"
      },
      {
          "Value": "",
          "Key": "access_logs.s3.prefix"
      },
      {
          "Value": "true",
          "Key": "deletion_protection.enabled"
      },
      {
          "Value": "",
          "Key": "access_logs.s3.bucket"
      }
  ]
}

To enable access logs

This example enables access logs for the specified load balancer. Note that the S3 bucket must exist in the same region as the load balancer and must have a policy attached that grants access to the Elastic Load Balancing service.

Command:

aws elbv2 modify-load-balancer-attributes --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 --attributes Key=access_logs.s3.enabled,Value=true Key=access_logs.s3.bucket,Value=my-loadbalancer-logs Key=access_logs.s3.prefix,Value=myapp

Output:

{
  "Attributes": [
      {
          "Value": "true",
          "Key": "access_logs.s3.enabled"
      },
      {
          "Value": "my-load-balancer-logs",
          "Key": "access_logs.s3.bucket"
      },
      {
          "Value": "myapp",
          "Key": "access_logs.s3.prefix"
      },
      {
          "Value": "60",
          "Key": "idle_timeout.timeout_seconds"
      },
      {
          "Value": "false",
          "Key": "deletion_protection.enabled"
      }
  ]
}

To modify a rule

The following modify-rule example updates the actions and conditions for the specified rule.

aws elbv2 modify-rule \
  --actions Type=forward,TargetGroupArn=arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067 \
  --conditions Field=path-pattern,Values='/images/*'
  --rule-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener-rule/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2/9683b2d02a6cabee

Output:

{
    "Rules": [
        {
            "Priority": "10",
            "Conditions": [
                {
                    "Field": "path-pattern",
                    "Values": [
                        "/images/*"
                    ]
                }
            ],
            "RuleArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:listener-rule/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2/9683b2d02a6cabee",
            "IsDefault": false,
            "Actions": [
                {
                    "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067",
                    "Type": "forward"
                }
            ]
        }
    ]
}

To modify the deregistration delay timeout

This example sets the deregistration delay timeout to the specified value for the specified target group.

Command:

aws elbv2 modify-target-group-attributes --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067 --attributes Key=deregistration_delay.timeout_seconds,Value=600

Output:

{
  "Attributes": [
      {
          "Value": "false",
          "Key": "stickiness.enabled"
      },
      {
          "Value": "600",
          "Key": "deregistration_delay.timeout_seconds"
      },
      {
          "Value": "lb_cookie",
          "Key": "stickiness.type"
      },
      {
          "Value": "86400",
          "Key": "stickiness.lb_cookie.duration_seconds"
      }
  ]
}

To modify the health check configuration for a target group

The following modify-target-group example changes the configuration of the health checks used to evaluate the health of the targets for the specified target group. Note that due to the way the CLI parses commas, you must surround the range for the --matcher option with single quotes instead of double quotes.

aws elbv2 modify-target-group \
    --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-https-targets/2453ed029918f21f \
    --health-check-protocol HTTPS \
    --health-check-port 443 \
    --matcher HttpCode='200,299'

Output:

{
    "TargetGroups": [
        {
            "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-https-targets/2453ed029918f21f",
            "TargetGroupName": "my-https-targets",
            "Protocol": "HTTPS",
            "Port": 443,
            "VpcId": "vpc-3ac0fb5f",
            "HealthCheckProtocol": "HTTPS",
            "HealthCheckPort": "443",
            "HealthCheckEnabled": true,
            "HealthCheckIntervalSeconds": 30,
            "HealthCheckTimeoutSeconds": 5,
            "HealthyThresholdCount": 5,
            "UnhealthyThresholdCount": 2,
            "Matcher": {
                "HttpCode": "200,299"
            },
            "LoadBalancerArns": [
                "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188"
            ],
            "TargetType": "instance",
            "ProtocolVersion": "HTTP1",
            "IpAddressType": "ipv4"
        }
    ]
}

For more information, see Target groups in the Applicaion Load Balancers Guide.

Example 1: To register targets with a target group by instance ID

The following register-targets example registers the specified instances with a target group. The target group must have a target type of instance.

aws elbv2 register-targets \
    --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067 \
    --targets Id=i-1234567890abcdef0 Id=i-0abcdef1234567890

Example 2: To register targets with a target group using port overrides

The following register-targets example registers the specified instance with a target group using multiple ports. This enables you to register containers on the same instance as targets in the target group.

aws elbv2 register-targets \
    --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-internal-targets/3bb63f11dfb0faf9 \
    --targets Id=i-0598c7d356eba48d7,Port=80 Id=i-0598c7d356eba48d7,Port=766

Example 3: To register targets with a target group by IP address

The following register-targets example registers the specified IP addresses with a target group. The target group must have a target type of ip.

aws elbv2 register-targets \
    --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-tcp-ip-targets/8518e899d173178f \
    --targets Id=10.0.1.15 Id=10.0.1.23

Example 4: To register a Lambda function as a target

The following register-targets example registers the specified IP addresses with a target group. The target group must have a target type of lambda. You must grant Elastic Load Balancing permission to invoke the Lambda function.

aws elbv2 register-targets \
    --target-group-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-tcp-ip-targets/8518e899d173178f \
    --targets Id=arn:aws:lambda:us-west-2:123456789012:function:my-function

To remove a certificate from a secure listener

This example removes the specified certificate from the specified secure listener.

Command:

aws elbv2 remove-listener-certificates --listener-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2 --certificates CertificateArn=arn:aws:acm:us-west-2:123456789012:certificate/5cc54884-f4a3-4072-80be-05b9ba72f705

To remove tags from a load balancer

The following remove-tags example removes the project and department tags from the specified load balancer.

aws elbv2 remove-tags \
    --resource-arns arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 \
    --tag-keys project department

To set the address type of a load balancer

This example sets the address type of the specified load balancer to dualstack. The load balancer subnets must have associated IPv6 CIDR blocks.

Command:

aws elbv2 set-ip-address-type --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 --ip-address-type dualstack

Output:

{
    "IpAddressType": "dualstack"
}

To set the rule priority

This example sets the priority of the specified rule.

Command:

aws elbv2 set-rule-priorities --rule-priorities RuleArn=arn:aws:elasticloadbalancing:us-west-2:123456789012:listener-rule/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2/1291d13826f405c3,Priority=5

Output:

{
  "Rules": [
      {
          "Priority": "5",
          "Conditions": [
              {
                  "Field": "path-pattern",
                  "Values": [
                      "/img/*"
                  ]
              }
          ],
          "RuleArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:listener-rule/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2/1291d13826f405c3",
          "IsDefault": false,
          "Actions": [
              {
                  "TargetGroupArn": "arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067",
                  "Type": "forward"
              }
          ]
      }
  ]
}

To associate a security group with a load balancer

This example associates the specified security group with the specified load balancer.

Command:

aws elbv2 set-security-groups --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 --security-groups sg-5943793c

Output:

{
  "SecurityGroupIds": [
      "sg-5943793c"
  ]
}

To enable Availability Zones for a load balancer

This example enables the Availability Zone for the specified subnet for the specified load balancer.

Command:

aws elbv2 set-subnets --load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188 --subnets subnet-8360a9e7 subnet-b7d581c0

Output:

{
  "AvailabilityZones": [
      {
          "SubnetId": "subnet-8360a9e7",
          "ZoneName": "us-west-2a"
      },
      {
          "SubnetId": "subnet-b7d581c0",
          "ZoneName": "us-west-2b"
      }
  ]
}