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Chapter 8. Bring site online
8.1. When to use this procedure
This procedure describes how to re-add a Keycloak site to the Global Accelerator, after it has previously been taken offline, so that it can once again service client requests.
8.2. Procedure
Follow these steps to re-add a Keycloak site to the AWS Global Accelerator so that it can handle client requests.
8.2.1. Global Accelerator
Determine the ARN of the Network Load Balancer (NLB) associated with the site to be brought online
Command:
NAMESPACE= 1 REGION= 2 HOSTNAME=$(oc -n $NAMESPACE get svc accelerator-loadbalancer --template="{{range .status.loadBalancer.ingress}}{{.hostname}}{{end}}") aws elbv2 describe-load-balancers \ --query "LoadBalancers[?DNSName=='${HOSTNAME}'].LoadBalancerArn" \ --region ${REGION} \ --output text
Output:
arn:aws:elasticloadbalancing:eu-west-1:606671647913:loadbalancer/net/a49e56e51e16843b9a3bc686327c907b/9b786f80ed4eba3d
Update the Accelerator EndpointGroup to include both sites
List the current endpoints in the Global Accelerator’s EndpointGroup
Command:
ACCELERATOR_NAME= 1 ACCELERATOR_ARN=$(aws globalaccelerator list-accelerators \ --query "Accelerators[?Name=='${ACCELERATOR_NAME}'].AcceleratorArn" \ --region us-west-2 \ 2 --output text ) LISTENER_ARN=$(aws globalaccelerator list-listeners \ --accelerator-arn ${ACCELERATOR_ARN} \ --query "Listeners[*].ListenerArn" \ --region us-west-2 \ --output text ) aws globalaccelerator list-endpoint-groups \ --listener-arn ${LISTENER_ARN} \ --region us-west-2
Output:
{ "EndpointGroups": [ { "EndpointGroupArn": "arn:aws:globalaccelerator::606671647913:accelerator/d280fc09-3057-4ab6-9330-6cbf1f450748/listener/8769072f/endpoint-group/a30b64ec1700", "EndpointGroupRegion": "eu-west-1", "EndpointDescriptions": [ { "EndpointId": "arn:aws:elasticloadbalancing:eu-west-1:606671647913:loadbalancer/net/a3c75f239541c4a6e9c48cf8d48d602f/5ba333e87019ccf0", "Weight": 128, "HealthState": "HEALTHY", "ClientIPPreservationEnabled": false } ], "TrafficDialPercentage": 100.0, "HealthCheckPort": 443, "HealthCheckProtocol": "TCP", "HealthCheckIntervalSeconds": 30, "ThresholdCount": 3 } ] }Update the EndpointGroup to include the existing Endpoint and the NLB retrieved in step 1.
Command:
aws globalaccelerator update-endpoint-group \ --endpoint-group-arn arn:aws:globalaccelerator::606671647913:accelerator/d280fc09-3057-4ab6-9330-6cbf1f450748/listener/8769072f/endpoint-group/a30b64ec1700 \ --region us-west-2 \ --endpoint-configurations ' [ { "EndpointId": "arn:aws:elasticloadbalancing:eu-west-1:606671647913:loadbalancer/net/a3c75f239541c4a6e9c48cf8d48d602f/5ba333e87019ccf0", "Weight": 128, "ClientIPPreservationEnabled": false }, { "EndpointId": "arn:aws:elasticloadbalancing:eu-west-1:606671647913:loadbalancer/net/a49e56e51e16843b9a3bc686327c907b/9b786f80ed4eba3d", "Weight": 128, "ClientIPPreservationEnabled": false } ] '
