Control Plane Unreachable #

Prepare at least two clusters for demonstration

Can be a cluster of one node or a cluster of Kind but at least two.

Preparation #

Initialize Control Plane Cluster #

# execute on control plane
ferryctl control-plane init --control-plane-reachable=false

Join a Data Plane Cluster #

Define which Data Plane Cluster needs to be joined #

# execute on Control Plane Cluster
ferryctl control-plane join cluster-1 "--data-plane-tunnel-address=${HOST_IP}:31001" --control-plane-reachable=false

--data-plane-tunnel-address Specify the address of the Data Plane Cluster Tunnel for the Control Plane Cluster  
--control-plane-reachable Specify whether the Data Plane Cluster is reachable

Need handshake

Complete handshake #

This data plane cluster can then be viewed in the control plane cluster

kubectl get hub.traffic.ferryproxy.io -n ferry-system

Quickly pull up a test environment locally #

If you don’t have a cluster to test and want to try it quickly, you can follow the process below

Requirement: Docker, Kind, Go

git clone https://github.com/ferryproxy/ferry
go install ./cmd/ferryctl
./test/hack/start-environment.sh control-plane-unreachable

Two clusters will be started using Kind, and the ferry-controller will be installed in the Control Plane Cluster, but no routing rules will be configured

Environment

Configuration route rules

# Map cluster-1's web-1.test.svc to control-plane's web-1.test.svc
# Map control-plane's web-0.test.svc to cluster-1's web-0.test.svc
apiVersion: traffic.ferryproxy.io/v1alpha2
kind: RoutePolicy
metadata:
  name: ferry-test
  namespace: ferry-system
spec:
  exports:
    - hubName: cluster-1
      service:
        namespace: test
        name: web-1
    - hubName: control-plane
      service:
        namespace: test
        name: web-0
  imports:
    - hubName: cluster-1
    - hubName: control-plane

# Go to the control-plane container and request the servuce mapped from cluster-1
kubectl --context=kind-ferry-test-control-plane exec -it svc/web-0 -n test -- wget -O - web-1

# Go to the cluster-1 container and request the servuce mapped from control-plane
kubectl --context=kind-ferry-test-cluster-1 exec -it svc/web-1 -n test -- wget -O - web-0

Sample