Today, I decided to mess around with something called “Calico” for my Kubernetes cluster. Honestly, I just wanted to see if I could get a simple demo environment up and running without too much hassle. Nothing fancy, just playing around.
Setting up the Playground
First, I fired up a couple of virtual machines. I usually go with Ubuntu, ’cause it’s easy. I made sure they could talk to each other – basic networking stuff. You know, making sure they’re on the same network and all that.
Getting Kubernetes Rolling
Next, I installed Kubernetes on these machines. I went with the usual suspects: kubeadm, kubelet, and kubectl. There are a million guides online for this, so I won’t bore you with the details. The important thing is to get a basic cluster running.
Bringing in Calico
Now for the main event: Calico. I grabbed the Calico manifest, which is basically a big text file that tells Kubernetes what to do.
I applied this file by command,wait a moment,it is done.
Did it Work?
To check if everything was working, I deployed a simple test application. Just a basic “Hello, World!” type thing. I created a deployment and a service, the usual Kubernetes dance. Then, I checked the logs and… bingo! My little app was running, and the pods could talk to each other. Success!
Wrapping Up
So, that’s pretty much it. I managed to get a basic Calico setup working in my Kubernetes cluster. It wasn’t rocket science, just following the instructions and making sure everything was connected properly. Now I can start experimenting with some of Calico’s cooler features, like network policies. But for now, I’m happy I got this little demo working. It’s always fun to learn something new, even if it’s just a small thing.
