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info_tfgrid_manual/tosort/weblets/weblets_k8s.md
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2024-02-23 06:07:41 +03:00

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Kubernetes

Kubernetes is the standard container orchestration tool.

On the TF grid, Kubernetes clusters can be deployed out of the box. We have implemented K3S, a full-blown Kubernetes offering that uses only half of the memory footprint. It is packaged as a single binary and made more lightweight to run workloads in resource-constrained locations (fits e.g. IoT, edge, ARM workloads).

  • Make sure you have an activated profile
  • Click on the Kubernetes tab

Configs tab

  • Name: Your Kubernetes Cluster name.
  • Cluster Token: It's used for authentication between your worker nodes and master node. You could use the auto-generated one or type your own.
  • Network Name: It's used for Wireguard's private network.
  • Network IP Range: It's a private subnet for Wireguard's network. You could use the auto-generated one or replace it with a private subnet.

Master and Worker tabs

Currently, we only support "single-master-multi-worker" k8s clusters. So you could always add more than one worker node by clicking on the + in the Worker tab.

Kubeconfig

Once the cluster is ready, you can SSH into the cluster using ssh root@IP

IP can be the public IP or the planetary network IP

Onced connected via SSH, you can execute commands on the cluster like kubectl get nodes, and to get the kubeconfig, you can find it in /root/.kube/config

if it doesn't exist in /root/.kube/config it can be in /etc/rancher/k3s/k3s.yaml

example:

root@WR768dbf76:~# cat /root/.kube/config 
apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: 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
    server: https://127.0.0.1:6443
  name: default
contexts:
- context:
    cluster: default
    user: default
  name: default
current-context: default
kind: Config
preferences: {}
users:
- name: default
  user:
    client-certificate-data: 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
    client-key-data: LS0tLS1CRUdJTiBFQyBQUklWQVRFIEtFWS0tLS0tCk1IY0NBUUVFSURXQURoZUl0RVdHWlFCc0tCSUpZTTZPeDB5TmRHQ1JjTDBTMUtvYjRTZ25vQW9HQ0NxR1NNNDkKQXdFSG9VUURRZ0FFZm5wbDF6MkxhMlRUYmgycWtJSnhEYkF2YnZrQ1E1NENxTkhjSFZJdG8vR2FIeWdlckRFcgpyb1R2bDUzYVI2c2RIWW1saWFYVGcyV1FmNzlIQ0wvVGNBPT0KLS0tLS1FTkQgRUMgUFJJVkFURSBLRVktLS0tLQo=
root@WR768dbf76:~#

If you want to use kubectl through another machine, you need to change the line server: https://127.0.0.1:6443 to be server: https://PLANETARYIP_OR_PUBLICIP/6443 replace PLANETARYIP_OR_PUBLICIP with the IP you want to reach th cluster through.

Manage Workers

Add or Remove workers in any Kubernetes cluster.

<tf-deployedlist tab="k8s"></tf-deployedlist>

  • Kubernetes DeployedList Weblet

  • Manager kubernetes workers

  • Add a new worker

  • Successfully added new worker

  • Delete a worker