Kubernetes Service Discovery Environment Variables. App label, matching the server pod declaration. A pretty common way of solving the service discovery problem is putting a load balancer aka reverse proxy (e.g.
Modern applications rely on microservices to remain scalable and efficient. Kubernetes uses 2 environment variables to expose the fixed ip address and port that you can use to access the service. The pod spec is the same as before with one exception, the value of the redis_url environment variable is set using environment variables set by kubernetes for service discovery.
If you do not already have a cluster, you can create one by using minikube, or you can use one of these kubernetes playgrounds:
Service discovery is the actual process of figuring out how to connect to a service. When a new pod is created, environment variables from older services can be imported. Similar to how docker allows for containers to communicate with each other, kubernetes lets you scan environment variable s. Kubernetes service discovery is one of the elements that make this container platform capable and flexible.