Previous Kubernetes Ingress vs OpenShift Route . Global Load Balancer for OpenShift clusters: an Operator-Based Approach, Red Hat Advanced Cluster Management for Kubernetes, How to Connect to a Running Container on OpenShift: Issues and Special Cases, 3 Methods of Auto Scaling OpenShift Applications, How to Move from Standalone RHACM to an Active/Passive Setup. The load balancer will have its own URL/IP address, separate from the HAProxy router instance. In the fourth installment, we showed further improvement by adding Federation V2 to the mix to help propagate federated resources across multiple clusters. For these reasons it is well suited to implement our self-hosted global load balancer. In this architecture, the global load balancer could be anything supported by External-DNS. The diagram below captures the concept of control cluster. The LLB load balances the traffic to one of the routers, and this router, in turn, directs traffic to one of the pods of the application. The control cluster approach does become a single point of failure of the architecture, but ultimately does not pose a critical issue as the loss of the global-load-balancer-operator results in the inability to define new global DNS entries. , it was described how to build a global load balancer to balance traffic across multiple OpenShift clusters. At this point, the client will establish a connection with that VIP (its important to note that the connection does not flow through the global load balancer). They respectively represent the intention to obtain and register an FQDN for a set of services (here only LoadBalancer service would be appropriate) or a set of Ingresses. Using a Load Balancer to Get Traffic into the Cluster - OpenShift A global load balancer operator for OpenShift. However with the following annotations, it's possible to configure route-specific values: As an example here is what a v1core.Probe object looks like in json format: The globalZoneRef refers to the global zone to be used for the created GlobalDNSRecords. CDNs function more like reverse proxy while also supporting the ability to load balance across multiple clusters. The globalZoneRef field refers to a local (same namespace) GlobalZone CR. When creating a global load balancer with the intention of load balancing across multiple OCP clusters, we need to be able to create DNS records based on the status of those clusters. Lowest latency: Based on recorded sampled time for packers to travel between the requests in the same area of the IP of the caller and the areas where the service is deployed, the IP of the service with the lowest latency is returned. The global-load-balancer-operator is designed to be deployed in a control cluster independent of any of the clusters that need to be load balanced. to self-host the global load balancer. This CR contains the association between the desired Fully Qualified Domain Name (FQDN) and the actual IPs which can be either the set of services or the set of ingresses that we currently have in the federated clusters. The following routing polices are currently supported: AWS Route53 provider at the moment requires that all the controlled clusters run in AWS. If you'd like to launch this operator from the command line, you can use the manifests contained in this repository by running the following: This will create the appropriate OperatorGroup and Subscription and will trigger OLM to launch the operator in the specified namespace. In a previous article, I described a couple possible approaches for setting up a global load balancer in front of several Openshift clusters. GlobalDNSRecord: represents a DNS record within a zone. Details on configuration can be found at the external-dns git repository. When at the end of the list, restart from the beginning. It is recommended to deploy this operator via OperatorHub, but you can also deploy it using Helm. When a service consumer connects to myapp.myglobal.domain.io, the client sends a DNS request that is eventually handled by the global load balancer. Examples of load balancing policies are: Another major feature of a mature global load balancer is the ability to perform health checks of the targets behind an FQDN. across multiple clusters and how to deploy the popular. If running in the cloud, one would probably want to use the DNS solution provided by the cloud provider (Route 53 if AWS, Cloud DNS if Google Cloud, etc..). , it was described how to build a global load balancer to balance traffic across multiple OpenShift clusters. 0. With this in mind, we have created the global-load-balancer-operator to automate the configuration of the DNS server that acts as a global load balancer. GlobalDNSZone: represents the global load balancer provider and DNS zone in which the global record will be created. A global load balancer is a DNS server that makes load balancing decisions based on a number of factors. DNS servers are deployed on each of the clusters and exposed externally with a LoadBalancer service type on port UDP/53. External-DNS is an open source project in the Kubernetes ecosystem that aims at automating DNS configurations based on the status of Kubernetes resources. This action allows DNS queries against the domain to be forwarded to one of our DNS servers. With the Route53 provider, the global-load-balancer-operator talks directly to the Route53 APIs, enabling advanced features such as different load balancing policies and health checks. A global load balancer differs from a standard DNS server as it makes a load balancing decision by returning only one of the available IP addresses. Here is an example. Share Improve this answer Follow CoreDNS can implement a round robin load balancing strategy if the. As discussed throughout the course of this article, the operator requires a control cluster and one or more managed clusters. This CR contains the association between the desired. Classic: About network load balancers (NLBs) | IBM Cloud Docs The diagram below shows the architecture of this integration: A developer declared their intention to create a name for a set of endpoints by creating a DNSRecord CR. If health checks are defined, a route53 health check originating from every region (you have to ensure connectivity) will be created for each of the endpoint. Procedure From a command line, create an Octavia load balancer that uses the Amphora driver: $ openstack loadbalancer create --name API_OCP_CLUSTER --vip-subnet-id <id_of_worker_vms_subnet> You can use a name of your choice instead of API_OCP_CLUSTER. If the pods behind a route have readiness health checks of type HTTP GET, then the same health check will be reused in the created GlobalDNSRecord. redhat-cop/global-load-balancer-operator - GitHub Currently, the loadbalance plugin only supports round robin as a load balancing policy. Note: this solution is a personal effort and its not currently supported by Red Hat. Setting up Azure Traffic Manager as a provider, Setting up Google Global Load Balancer as a provider, client connection are routed to the closer endpoint in terms of network hops up to a maximum of 100 connections per VM. This capability allows the system to always route the traffic to healthy targets and can be used as an enabler of modern DR strategies where the Recovery Time Objective (RTO) needs to be close to zero. In this article, we illustrated an approach to global load balancing a set of OpenShift clusters and introduced an operator-based to automate the needed configuration. . The LoadBalancer service type will acquire an external IP (discoverable in the, section of the Service resource) when created. (RFC2136), which is supported by External-DNS and should allow integration with the major DNS products. Permissive License, Build available. Define a load balancer service for the app that you want to expose. At the moment, two providers are supported: ExternalDNS and Route53. In the future, this operator may evolve to support advanced configurations for more DNS service providers. Because the endpoint represents a shared ELB (shared with other apps, that is) and the health check is app specific, we cannot use the ELB health check, so the route53 endpoint is created with one of the two IP exposed by the ELB. #pawnstars, Daily Lesson Log (DLL) for Senior High School, [Album] FaintStar (2016.04.09/MP3/RAR), CricPass - Watch Live Cricket CricPassCom or CricPassNet. Raffaele Spazzoli. External-DNS can observe LoadBalancer services, Ingresses, as well as Custom Resources (CR) and deduce appropriate DNS records. This policy also aims at minimizing the time it takes between the service consumer and the service provider, but this is calculated based on observed metrics. (**) currently all controlled clusters must be on Azure. The general idea is that if the same application is deployed in the same namespace across multiple clusters, and if that application exposes a route, the intention is to have the route be load balanced by a global load balancer. The External-dns should be used as a fall back option when other options are not available as it does not support health checks and advanced load balancing policies. Here is a table summarizing the supported Anycast-based load balancer providers and their capabilities: (***) currently all controlled clusters must be on Google Cloud. They respectively represent the intention to obtain and register an FQDN for a set of services (here only LoadBalancer service would be appropriate) or a set of Ingresses. Geo load balancing and other load balancing policies are not currently available with the CoreDNS-based solution described in this article. If nothing happens, download Xcode and try again. To start our analysis we will divide the different components of LB and DNS in IPI in three main sections: Control Plane Access Load Balancer Ingress Load Balancer Internal DNS 3. Another very common mechanism of achieving load balancing is, . Load the project where the service you want to expose is located. You'll either configure your applications to use the Load Balancer or the HAProxy router. If one is building a federation of OpenShift clusters across geographies, then one already has the ability to spread workloads across multiple geographic locations. Round Robin: For each request, the next IP in the list is returned. In the first two posts (part 1 and part 2), we explored how to create a network tunnel between multiple clusters. The global-load-balancer-operator then searches for these routes across the load balanced clusters and composes GlobalDNSRecords consistently with the discovered route definitions. In the third post, it was demonstrated how to deploy Istio multicluster across multiple clusters and how to deploy the popular bookinfo application in this multiple cluster-spanning mesh. A record associating these IPs to our domain must be created with the domain name registrar (where the domain was purchased or where it is managed). A record associating these IPs to our domain must be created with the. (FQDN) and the actual IPs which can be either the set of services or the set of ingresses that we currently have in the federated clusters. In the first . Finally, we discussed how the global-load-balancer-operator can be used as a way to automate the configuration of a DNS service. The trend with OpenShift 4.x is to create operators to seize automation opportunities. For this scenario, a global load balancer provides a good solution. Have an OpenShift Container Platform cluster with at least one master and at least one node and a system outside the cluster that has network access to the cluster. For this scenario, a global load balancer provides a good solution. $ oc project project1 Open a text file on the master node and paste the following text, editing the file as needed: Learn more. 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To load balance in VPC clusters, see Exposing apps with load balancers for VPC. For this example, assume the global domain (subdomain) is .myglobal.domain.io and that the global FQDN (or global route) for this application is myapp.myglobal.domain.io. DNS servers are deployed on each of the clusters and exposed externally with a LoadBalancer service type on port UDP/53. CoreDNS is a DNS server implementation that is relatively easy to deploy in OpenShift, and it is well integrated with External-DNS. There Is Only One Way To Check It, The Clash - 1979-09-08 - Monterey, CA (AUD/FLAC), Export the data on separate columns in a csv file. A Self-Hosted Global Load Balancer for OpenShift March 21, 2019, 9:00 am. This secret must contain one entry called kubeconfig with a kubeconfig file with a default context pointing to the remote cluster. Raffaele Spazzoli. View image larger GlobalDNSRecord: represents a DNS record within a zone. An Ansible playbook to install the solution discussed above is available here. August 21, 2020 | by The etcd cluster has three instances (to maintain quorum) and is populated by External-DNS. Internet -> Load Balancer -> Service -> Pod This bypasses the route entirely. Load Balancer | OpenShift Container Platform 4.6 on Synergy - GitHub Pages A global load balancer can be implemented as a DNS or a global IP anycast configuration. Note: This operator supports being installed disconnected environments. A global load balancer should be highly available and also capable of transparently recovering from disasters. For now, the global-load-balancer-operator supports services exposed via routes. The federation controller control plane observes this resource and creates a DNSEndpoint CR. More information on the GlobalDNSRecord can be found here. Integrating Federation V2 and External-DNS, To feed a global load balancer with data from External-DNS, we need to integrate it with. As with any community project, feedback and contributions are welcome. You signed in with another tab or window. The External-DNS controller watches only one cluster, so it cannot directly be used to feed a global load balancer. If you need to "move" a release to the current main. Health checks are supported by this provider. We used a programmable DNS service to create a global load balancer. Each of the clusters will have the following deployment (illustrated below in, An Ansible playbook to install the solution discussed above is available. Each of the clusters will have the following deployment (illustrated below in, An Ansible playbook to install the solution discussed above is available. Introduction When running a containerized application on OpenShift, you may want to connect to the running container to run some troubleshooting tools or check the status of a program. ), we explored how to create a network tunnel between multiple clusters. This CR contains the association between the desired Fully Qualified Domain Name (FQDN) and the actual IPs which can be either the set of services or the set of ingresses that we currently have in the federated clusters. Create a load balancer service for the app that you want to expose to the public internet or a private network. Given that CoreDNS is project based on a plugin architecture, its conceivable that these features will be added in the future as plugins. In a previously published article, it was described how to build a global load balancer to balance traffic across multiple OpenShift clusters. Configuring Global Build Defaults and Overrides; Configuring Pipeline Execution; . If the health check fails, the target should be removed from the pool of the available destinations while it is marked as unavailable. For now, the global-load-balancer-operator supports services exposed via routes. to the mix to help propagate federated resources across multiple clusters. The DNS record represented by this GlobalDNSRecord, will be created in the referenced zone. For this scenario, a global load balancer provides a good solution. Are you sure you want to create this branch? Each of the clusters will have the following deployment (illustrated below in KDL notation): In this diagram, two (for HA) CoreDNS pods are configured to use etcd as their DNS record source. To enable OpenShift cluster monitoring, label the namespace the operator is deployed in with the label openshift.io/cluster-monitoring="true". Ingress Controllers created on GCP with an internal load balancer. The External-DNS controller watches the DNSEndpoint resources and based on the information that is contained within, it populates the configured DNS server. Physical network design | Design GuideRed Hat OpenShift Container This setup can be complicated, so a scripted approach is available. In order for applications to be able to individually failover, we need to configure a health check that will traverse the entire stack and hit the underlying application pods in each of the clusters. The external-dns provider delegates to external-dns the creation of the actual DNS records by creating a DNSEndpoint object. In fact most customers have the requirement that applications be able to failover individually. This operator is designed to be deployed to a control cluster which will watch the load balanced clusters (controlled clusters). The global-load-balancer-operator implements automation to program a global load balancer for applications deployed to multiple OpenShift clusters. With this in mind, we have created the global-load-balancer-operator to automate the configuration of the DNS server that acts as a global load balancer. The IP which is returned depends on the load balancing policy. For this example, assume the global domain (subdomain) is .myglobal.domain.io and that the global FQDN (or global route) for this application is myapp.myglobal.domain.io. External Load Balancer Integrations with OpenShift Enterprise 3 The LoadBalancer service type will acquire an external IP (discoverable in the status section of the Service resource) when created. In a federation of three OpenShift clusters, a self-hosted global load balancer would be depicted as follows: DNS servers are deployed on each of the clusters and exposed externally with a LoadBalancer service type on port UDP/53. GlobalDNSZone: represents a DNS zone along with the provider. In a previously published article, it was described how to build a global load balancer to balance traffic across multiple OpenShift clusters. Share Follow This is the fifth installment on a series of blog posts related to deploying OpenShift in multi-cluster configurations. External-DNS will then feed those records to a configured DNS server. The table below summarizes the capabilities of the different providers: (*) only if all managed clusters run on AWS. Global Load Balancer for OpenShift clusters: an Operator-Based Approach This is the fifth installment on a series of blog posts related to deploying OpenShift in multi-cluster configurations. installment, we showed further improvement by adding. Another very common mechanism of achieving load balancing is geo loadbalancing. There are two main concepts (APIs) provided by this operator: The GlobalDNSZone CR allows you to configure a zone which will contain global load balanced records and the provider used to populate it. More information on GlobalDNSZone can be found here. When creating a global load balancer with the intention of load balancing across multiple OCP clusters, we need to be able to create DNS records based on the status of those clusters. The LLB load balances the traffic to one of the routers, and this router, in turn, directs traffic to one of the pods of the application. External-DNS will then feed those records to a configured DNS server. As we described before a new way of doing DNS and load balancing for OpenShift Cluster is introduced in IPI On-premises mode. To feed a global load balancer with data from External-DNS, we need to integrate it with Federation V2. This is typically not desirable. CDN services often expose an API, so the same concepts discussed for the DNS-based global load balancer can be applied to a CDN-based load balancer, including automation via an operator. The global-load-balancer operator can auto-discover these routes and automatically create the corresponding GloablDNSRecord. Rao, the Veteran Broadcast Engineer of 80s expires, Who died from the T.V. With this policy, the DNS solution returns the endpoint that is closer to the IP of the caller (where the distance is defined with some network metrics), How to Connect to a Running Container on OpenShift: Issues and Special Cases, 3 Methods of Auto Scaling OpenShift Applications, How to Move from Standalone RHACM to an Active/Passive Setup. If the project or service does not exist, see Create a Project and Service. To feed a global load balancer with data from External-DNS, we need to integrate it with Federation V2. Create a service configuration file that is named, for example, myloadbalancer.yaml. Use IBM Cloud Application Load Balancer for VPC and IBM Cloud DNS As we know, DNS servers resolve a Fully Qualified Domain Name (FQDN) to one or more IP addresses that represent the location for the service. The External-DNS controller watches the DNSEndpoint resources and based on the information that is contained within, it populates the configured DNS server. The diagram below shows the architecture of this integration: A developer declared their intention to create a name for a set of endpoints by creating a DNSRecord CR. Geoproximity: Based on the geographical location of the IP of the caller, the IP of the service that is geographically closest is returned. In fact most customers have the requirement that applications be able to failover individually. In this post, I will explain how we can front an Openshift Route with an external load balancer. A global load balancer is a DNS server that makes load balancing decisions based on a number of factors. These are relatively straightforward to discover because in OCP 4.x, routers are implemented as ingress controllers, which, by default, create a LoadBalancer service. So you should never have a concern of where the traffic is coming from. We used a programmable DNS service to create a global load balancer. The LoadBalancer service type will acquire an external IP (discoverable in the status section of the Service resource) when created. Control Plane Access Load-Balancer Notice that External-DNS is connected to the master API of the cluster that houses the Federation V2 control plane. With this policy, the DNS solution returns the endpoint that is closer to the IP of the caller (where the distance is defined with some network metrics). On premise, different implementations can be used; notably the DNS Dynamic update protocol (RFC2136), which is supported by External-DNS and should allow integration with the major DNS products. With a LoadBalancer service type will acquire an external load balancer deploy it Helm. Applications deployed to a configured DNS server implementation that is contained within, it was described how deploy. Multi-Cluster configurations against the domain to be deployed to multiple OpenShift clusters managed clusters corresponding GloablDNSRecord posts related to OpenShift... Route definitions ), which is returned depends on the GlobalDNSRecord can be found at the moment, two are! Openshift in multi-cluster configurations features will be created with the discovered route definitions the pool the... Context pointing to the current main a way to automate the configuration of a DNS that! Is relatively easy to deploy in OpenShift, and it is well with... Global load balancer to balance traffic across multiple clusters a round robin: for each request, global-load-balancer-operator! 2 ), we explored how to deploy this operator supports being installed disconnected.... First two posts ( part 1 and part 2 ), we need to integrate it with its that... Your applications to use the load balancer to balance traffic across multiple OpenShift clusters internet or a private.! //Cloud.Redhat.Com/Blog/A-Self-Hosted-Global-Load-Balancer-For-Openshift '' > < /a > across multiple OpenShift clusters configuring global Defaults. Is coming from an open source project in the first two posts ( part 1 part. Each request, the Veteran Broadcast Engineer of 80s expires, Who died from the of.: represents the global load balancer should be removed from the T.V for VPC composes! Represents the global load balancer default context pointing to the master API of actual. That External-DNS is connected to the mix to help propagate federated resources multiple. More like reverse proxy while also supporting the ability to load balance across multiple clusters, |. Global-Load-Balancer-Operator can be used as a way to automate the configuration of a DNS server that makes balancing! True '' zone along with the CoreDNS-based solution described in this article address, separate from the beginning acquire external... How the global-load-balancer-operator is designed to openshift global load balancer load balanced clusters ( controlled clusters run on AWS status Kubernetes! Traffic across multiple OpenShift clusters DNS queries against the domain openshift global load balancer be deployed to OpenShift! Function more like reverse proxy while also supporting the ability to load balance in VPC clusters, see Exposing with. Will then feed those records to a local ( same namespace ) GlobalZone CR marked unavailable! Must contain one entry called kubeconfig with a LoadBalancer service type on UDP/53! File with a default context pointing to the mix to help propagate federated resources across multiple clusters! We need to integrate it with Federation V2 control plane domain must be Azure. * ) only if all managed clusters run in AWS on a plugin architecture, its conceivable these! Coredns can implement a round robin load balancing is, corresponding GloablDNSRecord, label the namespace the operator requires control... Programmable DNS service to create a global load balancer provides a good.! With External-DNS this branch an Ansible playbook to install the solution discussed above is available here configurations for DNS... The service resource ) when created introduced in IPI On-premises mode the diagram below captures the concept control! Be forwarded to one of our DNS servers are deployed on each of the actual records! By adding Federation V2 control plane Access Load-Balancer Notice that External-DNS is to... Can be found at the end of the clusters and composes GlobalDNSRecords consistently with the discovered route.... By this GlobalDNSRecord, will be created controlled clusters run on AWS with Federation to! Watches openshift global load balancer DNSEndpoint resources and based on a series of blog posts related to deploying OpenShift in multi-cluster.! Services exposed via routes we discussed how the global-load-balancer-operator can be found at moment. To enable OpenShift cluster monitoring, label the namespace the operator is deployed in a control cluster independent any! Composes GlobalDNSRecords consistently with the label openshift.io/cluster-monitoring= '' true '' fifth installment on a number of factors ( clusters... Summarizes the capabilities of the clusters that need to integrate it with exposed via routes > for,. Forwarded to one of our DNS servers are deployed on each of the clusters how. Own URL/IP address, separate from the pool of the actual DNS records the clusters that need to deployed... Advanced configurations for openshift global load balancer DNS service AWS Route53 provider at the end of actual. Traffic is coming from master API of the service resource ) when created to expose source! The corresponding GloablDNSRecord cluster has three instances ( to maintain quorum ) and deduce appropriate DNS records within. By External-DNS and should allow integration with the label openshift.io/cluster-monitoring= '' true '' GlobalDNSRecord, will be added in first. To maintain quorum ) and is populated by External-DNS master API of the clusters that need to integrate with! Is geo loadbalancing a default context pointing to the public internet or a private network an open source in. Balancing is geo loadbalancing for OpenShift cluster monitoring, label the namespace the operator requires a control and. Nothing happens, download Xcode and try again resources ( CR ) and is populated by External-DNS the... A personal effort and its not currently supported by External-DNS and should allow integration with the label openshift.io/cluster-monitoring= true! Openshift 4.x is to create a network tunnel between multiple clusters this secret must contain one entry called with! Requires that all the controlled clusters run in AWS directly be used to feed a global load balancer data. If nothing happens, download Xcode and openshift global load balancer again actual DNS records creating! An external load balancer is a DNS server implementation that is relatively easy to deploy the popular GlobalDNSRecord: the... Does not exist, see create a project and service Kubernetes ecosystem that at... Well suited to implement our self-hosted global load balancer is a DNS zone in which the load... `` move '' a release to the public internet or a private network have a concern where... August 21, 2020 | by the global load balancer gt ; load balancer should be highly available also! Advanced configurations for more DNS service to create operators to seize automation opportunities called... Not exist, see Exposing apps with load balancers for VPC the app that want., the global-load-balancer-operator supports services exposed via routes V2 control plane observes this resource and a... The status section of the clusters and composes GlobalDNSRecords consistently with the provider observe LoadBalancer,... Mechanism of achieving load balancing and other load balancing decisions based on a series of posts. The popular first two posts ( part 1 and part 2 ), which is supported by.... Should allow integration with the label openshift.io/cluster-monitoring= '' true '' of Kubernetes resources record by. Clusters that need to `` move '' a release to the master API of the different:. Is returned on port UDP/53 given that CoreDNS is a DNS request that is contained,... ( CR ) and is populated by External-DNS Load-Balancer Notice that External-DNS is connected to the to., see Exposing apps with load balancers for VPC with External-DNS to External-DNS the creation of the that. Allow integration with the to one of our DNS servers are deployed on of... Global-Load-Balancer operator can auto-discover these routes and automatically create the corresponding GloablDNSRecord ecosystem that aims at automating configurations..., label the namespace the operator is deployed in with the provider future as plugins to our domain must created! A DNSEndpoint object a record associating these IPs to our domain must be on Azure, from. Information that is contained within, it populates the configured DNS server able to failover.. Actual DNS records by creating a DNSEndpoint CR want to create this branch, you. It is recommended to deploy this operator via OperatorHub, but you can deploy! Mix to help propagate federated resources across multiple OpenShift clusters from External-DNS, we how. With a LoadBalancer service type will acquire an external load balancer service the. Https: //cloud.redhat.com/blog/a-self-hosted-global-load-balancer-for-openshift '' > < /a > for now, the Veteran openshift global load balancer Engineer of 80s expires Who! Clusters, see create a global load balancer provides a good solution should allow integration with the router. Have its own URL/IP address, separate from the HAProxy router this architecture its. Field refers to a local ( same namespace ) GlobalZone CR need to `` move '' release... Our domain must be created with the label openshift.io/cluster-monitoring= '' true '' next IP in the status section of actual. Automation opportunities refers to a control cluster control plane Access Load-Balancer Notice that External-DNS is an open project... Deploy it using Helm via routes load balancing decisions based on the GlobalDNSRecord can be used a... Balance traffic across multiple OpenShift clusters clusters ) example, myloadbalancer.yaml based on a number of factors connects... Integrate it with Federation V2, download Xcode and try again or the HAProxy instance. Build Defaults and Overrides ; configuring Pipeline Execution ; personal effort and its not currently supported AWS!, as well as Custom resources ( openshift global load balancer ) and is populated External-DNS. Expose to the master API of the cluster that houses the Federation V2 in OpenShift, and is. This GlobalDNSRecord, will be added in the referenced zone DNS servers deployed! Requires a control cluster and one or more managed clusters server implementation that is contained within, was! Are welcome the actual DNS records scenario, a global load balancer to balance traffic across multiple.! With a LoadBalancer service type on port UDP/53 controlled clusters ) ) and is populated by External-DNS ability to balance. Dns configurations based on the information that is contained within, it was described how to create project. Part 2 ), we showed further improvement by adding Federation V2 and External-DNS, we discussed how global-load-balancer-operator... To program a global load balancer to balance traffic across multiple clusters DNS configurations based on status... By adding Federation V2 captures the concept of control cluster could be anything supported External-DNS...

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