Provision the Liqo Playground

First, check that you are compliant with the requirements.

Then, let’s open a terminal on your machine and launch the following script, which downloads and executes the Kind tool to create a pair of clusters. Each cluster is made by two nodes (one for the control plane and one as a simple worker):

source <(curl -L https://get.liqo.io/clusters.sh)

Explore the playground (Optional)

You can inspect the deployed clusters by typing:

kind get clusters

You should see a couple of entries:

cluster1
cluster2

This means that 2 kind clusters are deployed and running on your host.

Then, you can simply inspect the status of the clusters. To do so, you can export the KUBECONFIG variable to specify the identity file for kubectl and then contact the cluster.

By default, the kubeconfigs of the two clusters are saved in the current directory (./liqo_kubeconf_1, ./liqo_kubeconf_2) and both are already exported as environment variables (KUBECONFIG_1,KUBECONFIG_2).

For example, on the first cluster, you can get the available pods by merely typing:

export KUBECONFIG=$KUBECONFIG_1
kubectl get pods -A

Similarly, on the second cluster, you can observe the pods in execution:

export KUBECONFIG=$KUBECONFIG_2
kubectl get pods -A

netlab@cloud-docker:~$ kubectl get po -A
NAMESPACE            NAME                                             READY   STATUS    RESTARTS   AGE
kube-system          coredns-f9fd979d6-6mmhl                          1/1     Running   0          57m
kube-system          coredns-f9fd979d6-szfwc                          1/1     Running   0          57m
kube-system          etcd-cluster1-control-plane                      1/1     Running   0          57m
kube-system          kindnet-8tg8s                                    1/1     Running   0          57m
kube-system          kindnet-whcfm                                    1/1     Running   0          57m
kube-system          kube-apiserver-cluster1-control-plane            1/1     Running   0          57m
kube-system          kube-controller-manager-cluster1-control-plane   1/1     Running   0          57m
kube-system          kube-proxy-88m2g                                 1/1     Running   0          57m
kube-system          kube-proxy-zctxs                                 1/1     Running   0          57m
kube-system          kube-scheduler-cluster1-control-plane            1/1     Running   0          57m
local-path-storage   local-path-provisioner-78776bfc44-rk58g          1/1     Running   0          57m

If the above commands return each output similar to this, your clusters are up and ready.

Now, you can move forward to the next step: the installation of Liqo.