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description
| description |
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| Creating a Kubernetes cluster on DigitalOcean |
Kubernetes on DigitalOcean
IMO, the easiest Kubernetes cloud provider to experiment with is DigitalOcean (this is a referral link). I've included instructions below to start a basic cluster.
Ingredients
- DigitalOcean account, either linked to a credit card or (my preference for a trial) topped up with $5 credit from PayPal. (yes, this is a referral link, making me some 💰 to buy 🍷)
- Geek-Fu required : 🐱 (easy - even has screenshots!)
Preparation
Create DigitalOcean Account
Create a project, and then from your project page, click Manage -> Kubernetes (LTD) in the left-hand panel:
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Until DigitalOcean considers their Kubernetes offering to be "production ready", you'll need the additional step of clicking on Enable Limited Access:
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The Enable Limited Access button changes to read Create a Kubernetes Cluster . Cleeeek it:
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When prompted, choose some defaults for your first node pool (your pool of "compute" resources for your cluster), and give it a name. In more complex deployments, you can use this concept of "node pools" to run certain applications (like an inconsequential nightly batch job) on a particular class of compute instance (such as cheap, preemptible instances)
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That's it! Have a sip of your 🍷, a bite of your 🧀, and wait for your cluster to build. While you wait, follow the instructions to setup kubectl (if you don't already have it)
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DigitalOcean will provide you with a "kubeconfig" file to use to access your cluster. It's at the bottom of the page (illustrated below), and easy to miss (in my experience).
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Release the kubectl!
Save your kubeconfig file somewhere, and test it our by running kubectl --kubeconfig=<PATH TO KUBECONFIG> get nodes 1
Example output:
[davidy:~/Downloads] 130 % kubectl --kubeconfig=penguins-are-the-sexiest-geeks-kubeconfig.yaml get nodes
NAME STATUS ROLES AGE VERSION
festive-merkle-8n9e Ready <none> 20s v1.13.1
[davidy:~/Downloads] %
In the example above, my nodes were being deployed. Repeat the command to see your nodes spring into existence:
[davidy:~/Downloads] % kubectl --kubeconfig=penguins-are-the-sexiest-geeks-kubeconfig.yaml get nodes
NAME STATUS ROLES AGE VERSION
festive-merkle-8n96 Ready <none> 6s v1.13.1
festive-merkle-8n9e Ready <none> 34s v1.13.1
[davidy:~/Downloads] %
[davidy:~/Downloads] % kubectl --kubeconfig=penguins-are-the-sexiest-geeks-kubeconfig.yaml get nodes
NAME STATUS ROLES AGE VERSION
festive-merkle-8n96 Ready <none> 30s v1.13.1
festive-merkle-8n9a Ready <none> 17s v1.13.1
festive-merkle-8n9e Ready <none> 58s v1.13.1
[davidy:~/Downloads] %
That's it. You have a beautiful new kubernetes cluster ready for some action!
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Do you live in the CLI? Install the kubectl autocompletion for bash or zsh to make your life much easier! ↩︎