Can you point out any tutorials or guides on how to set up kubernetes simply? I'm wondering what the best way to deploy my app with minimal effort is - you make it sound like kubernetes is the answer.
You can still deploy apps directly onto Kubernetes and it works very well for this purpose, but it will require a lot more learning than one of the platforms listed above. If you enjoy learning, Kubernetes is an incredibly powerful and satisfying tool to have in your kit, and the initial learning curve isn't as steep as some make it out to be. If your goal is to deploy apps as quickly and simply as possible however, go with one of the pre-existing platforms.
If you still want to learn Kubernetes then a really great book is Kubernetes Up and Running. It goes into just enough detail at the right point in time to make it simple while still being useful. If you do a bit of Googling, you might find a free copy of the book that used to be offered by Microsoft to promote their Azure Kubernetes Service. Otherwise there's Kubernetes the Hard Way² but that's more focused on administering the Kubernetes cluster itself, rather than how to use the cluster to deploy apps. You'd need a pretty convincing reason to administer your own cluster rather than spinning up a managed cluster on GKE or EKS.
My advice: - Grab a copy of Kubernetes Up and Running - Install minikube on your local PC - Experiment and have fun learning
Hope this helps.
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1. https://twitter.com/kelseyhightower/status/93525292372179353...
2. https://github.com/kelseyhightower/kubernetes-the-hard-way
- kubeadm (read the logs)
- k0s
- k3s
If you want to understand everything though, the way I started was:
- read the kubernetes documentation front to back
- go through setting up a cluster the hard way (look up the kubernetes the hard way guide)
- set up ingress on that cluster (nginx ingress), and make sure you understand the interplay between kube-proxy, ingress, services, and your deployment. The actual flow is more like kube-proxy->iptables/lvs->containerd but you want to be able to “think in k8s” (i.e know where to look and have an idea what to check when something goes wrong).
- install cert manager for free https certs
- tear that cluster down, and set a cluster up with kubeadm (This will be much easier, and you’ll know what it’s doing because the logs are great and you’ve done it before)
- tear that down and make a cluster with k0s/k3s
I want to point out that it really depends on what your goals are. Kubernetes is useful to me because it’s a one stop shop for a wide range of possibilities.
If you just need to get an app up as fast as possible, install caprover/dokku on a DO droplet and git push to deploy.