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Besu Services

Background

An application running on a Kubernetes cluster must be explicitly exposed in order to be accessed from outside of the cluster. This is especially true in the case of cloud environments such as AWS.

General documentation on how to expose Kubernetes applications may be found in the Kubernetes documentation where there is a nice tutorial as well.

Here we provide specific guidance on how to expose services of a Sextant-managed Besu deployment, specifically on an AWS-hosted Kubernetes cluster, whether EKS-based or not.

Overview

These examples assume that you have deployed a Besu network called test-network in namespace test-namespace.

You can view the services currently defined using this command substituting test-namespace for your Sawtooth namespace.

$ kubectl get svc --namespace=test-namespace
NAME                  TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)                                          AGE
test-network-besu     ClusterIP   None         <none>        8545/TCP,8546/TCP,8547/TCP,30303/TCP,30303/UDP   38s
test-network-besu-0   ClusterIP   None         <none>        8545/TCP,8546/TCP,8547/TCP,30303/TCP,30303/UDP   38s
test-network-besu-1   ClusterIP   None         <none>        8545/TCP,8546/TCP,8547/TCP,30303/TCP,30303/UDP   38s
test-network-besu-2   ClusterIP   None         <none>        8545/TCP,8546/TCP,8547/TCP,30303/TCP,30303/UDP   38s
test-network-besu-3   ClusterIP   None         <none>        8545/TCP,8546/TCP,8547/TCP,30303/TCP,30303/UDP   38s

  • test-network-besu is a service which exposes the ports of all of the available besu in a balanced fashion.

  • test-network-besu-0 is a service which exposes the ports of besu node 0 (the first node in this statefulset).

  • test-network-besu-1 is a service which exposes the ports of besu node 1 (the second node in this statefulset).

  • test-network-besu-2 is a service which exposes the ports of besu node 2 (the third node in this statefulset).

  • test-network-besu-3 is a service which exposes the ports of besu node 3 (the fourth node in this statefulset).

Ports

  • JSON-RPC HTTP: 8545 the standard JSON-RPC HTTP port for besu.
  • WS HTTP: 8546 the standard WS HTTP port for besu.
  • GraphQL HTTP: 8547 the standard GraphQL HTTP port for besu.
  • 30303 the standard P2P port for besu.