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Configure kubectl for DigitalOcean Kubernetes

DigitalOcean host provider released DigitalOcean Kubernetes which allows you to have a full k8s (Kubernetes) cluster in minutes with very few clicks.

The cool stuff here is that you'll gonna pay only the worker nodes, not the masters.
This means you can have a runnung cluster for $10/month with the smallest droplet they provide.

kubectl

kubectl is the command line tool to manage and use your k8s cluster.

You can install it on macOS using Homebrew :

$ brew install kubernetes-cli

Or by installing the Docker Desktop app.

DO K8s with kubectl

kubectl command line tool uses a config file in order to access the Kubernetes cluster.
This config file could be easily downloaded from the DigitalOcean UI.

Fetch the kubectl config file

Connect to the DO website and from the Kubernetes menu download the configuration file :

digitalocean-kubernetes-download-config

Install the config file

kubectl is reading the config from the ~/.kube/config file so just do the following :

$ mkdir ~/.kube
$ mv ~/Downloads/<cluster name>-kubeconfig.yaml ~/.kube/config

Check all is working fine

Now you want to check that all works fine so you try to get pods from your cluster :

$ kubectl get pods --all-namespaces=true
NAMESPACE             NAME                                    READY   STATUS      RESTARTS   AGE
kube-system           coredns-7b5bcb98f8-fg4pq                1/1     Running     0          14d
kube-system           coredns-7b5bcb98f8-g8lp5                1/1     Running     0          14d
kube-system           csi-do-node-5p55z                       2/2     Running     0          14d
kube-system           csi-do-node-64c2z                       2/2     Running     0          14d
kube-system           csi-do-node-tb5fj                       2/2     Running     0          14d
kube-system           kube-proxy-serene-wiles-83l7            1/1     Running     1          14d
kube-system           kube-proxy-serene-wiles-83lc            1/1     Running     1          14d
kube-system           kube-proxy-serene-wiles-83lm            1/1     Running     1          14d
kube-system           kubernetes-dashboard-57df4db6b-8n97n    1/1     Running     0          14d
kube-system           metrics-server-fc6d4999b-mtjjd          1/1     Running     0          8d

Next

Now you need to go through the Kubernetes documentation in order to understand all the concepts and how to deploy and manage apps in Kubernetes.

For people, like me, wanting to preserve their eyes while reading the documentation, I did a dark theme for the Kubernetes webiste 😇.

Configure kubectl for DigitalOcean Kubernetes
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