AWS Elastic Load Balancing Operations
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External
Internal
Load Balancer Operations
Describe Load Balancers
aws [--region ca-central-1 ...] elbv2 describe-load-balancers
Elastic Load Balancing V2 Deployment with CloudFormation
Create a Network Load Balancer
Test a Network Load Balancer
curl http://playground-nlb-85d74951c7b728b3.elb.us-west-2.amazonaws.com:10001/amazons
Create an Application Load Balancer
Application Load Balancer GetAtt Attributes
- DNSName
Connecting Internet-Facing Load Balancer to Private IP Address Targets
Register a Target with a Target Group in Command Line
aws elbv2 register-targets --target-group-arn arn:aws:elasticloadbalancing:us-west-2:77777777777:targetgroup/themyscira/4d66315292d681f9 --targets Id=10.7.1.84 Id=10.7.1.151
Listener Operations
aws [--region ...] elbv2 describe-listeners <--load-balancer-arn ... | --listener-arns ...>
aws --region ca-central-1 elbv2 describe-listeners --listener-arns arn:aws:elasticloadbalancing:ca-central-1:777777777777:listener/app/infinity-test-alb/ac8ae6a4de687154/4c3e44faee30b5d2
Target Groups Operations
Resources:
...
TargetGroup:
Type: AWS::ElasticLoadBalancingV2::TargetGroup
#
# DependsOn is important, I've seen race conditions with the load balancer
#
DependsOn: ApplicationLoadBalancer
Properties:
Name: !Sub ${Color}-themyscira-tg
VpcId: !Ref VPC
Protocol: HTTP
Port: !Ref ApplicationPort
TargetType: ip
HealthCheckProtocol: HTTP
HealthCheckIntervalSeconds: 60
HealthCheckTimeoutSeconds: 10
HealthyThresholdCount: 3
UnhealthyThresholdCount: 3
HealthCheckPath: '/actuator/health'