Kubernetes

There is a few different ways to run Kubernetes, which can be viewed as a networking solution to containers. Settting up clusters and nodes via a yaml configuration can simplify infrastructure deployment. Some of the kubernetes options is AWS Eks , Microk8s , CoreOS , Rancher , Minikube , OpenShift, OKD, etc.

Recomendation:

If you are running kubernetes locally, K3s & Headlamp are an easy way yo get up an running on Linux.

K3s

Rancher provides a lightwieght Kubernetes that is easy to install

curl -sfL https://get.k3s.io | sh - 
# Check for Ready node, takes ~30 seconds 
sudo k3s kubectl get node

AWS EKS

Amazon provides a way to run Kubernetes locally then push to the cloud. ( Not updated since 2021 )

sudo snap install eks --classic --edge

Deploy existing local kubernetes , what ever version, to AWS EKS

https://blog.devops.dev/deploying-kubernetes-pods-configs-into-aws-eks-cluster-using-github-actions-ff6f5b8adf47

Localstack EKS:

https://docs.localstack.cloud/user-guide/aws/eks/

Microk8s

Microk8s is Canonical's Kubernetes. Easy to install via snap. Enterprise ready or can experiment locally. Crossplatform.

MicroK8s - Install

$ sudo snap install microk8s --classic 
$ sudo usermod -a -G microk8s $USER
$ sudo chown -f -R $USER ~/.kube 
$ sudo microk8s config > ~/.kube/config
$ echo "alias kubectl='microk8s kubectl'" >> ~/.bashrc
# Logout and back in
$ microk8s enable dns storage helm3 ingress registry
$ echo "alias helm='microk8s helm3'" >> ~/.bashrc
# Logout and back in . 
$ helm repo add stable https://charts.helm.sh/stable
# Example 1
$ helm search repo ingress-nginx
# Example 2
$ helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
$ helm repo update
$ helm install ingress-controller ingress-nginx/ingress-nginx
$ helm ls
$ kubectl get deployments

MicroK8s - Commands

$ microk8s status --wait-ready
$ microk8s stop
$ microk8s start
$ microk8s kubectl get nodes
$ microk8s kubectl get services
$ microk8s kubectl get pods

Microk8s - Deploy Example

$ microk8s kubectl create deployment nginx --image=nginx

Optional: Machine learning Projects:

https://www.kubeflow.org/
https://www.kubeflow.org/docs/components/pipelines/v1/installation/localcluster-deployment/
https://www.youtube.com/watch?v=cTZArDgbIWw

Optional: Headlamp

flatpak install flathub io.kinvolk.Headlamp
https://headlamp.dev/

Optional: Karpenter

https://karpenter.sh/

Optional: Kompose

https://kompose.io/

Optional: Kubsphere

https://kubesphere.io/

Optional: Lens IDE

# Desktop APP (Client Side) - Debian Package
$ wget https://api.k8slens.dev/binaries/Lens-2022.11.101953-latest.amd64.deb
$ sudo dpkg -i Lens-2022.11.101953-latest.amd64.deb
# Create an account to use

Optional: K9

# Manage K8s via terminal - Install via Linuxbrew
$ /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
$ brew install derailed/k9s/k9s

Optional: Ocatant

# Limitations , Yaml read only in gui. 
$ wget https://github.com/vmware-tanzu/octant/releases/download/v0.25.1/octant_0.25.1_Linux-64bit.deb
$ sudo dpkg -i octant_0.25.1_Linux-64bit.deb
<OR>
# Desktop App Mac / Linux
$ brew install octant

Optional: KubeNav

# One of the only currently available Android Kubernetes management apps. 
https://play.google.com/store/apps/details?id=io.kubenav.kubenav&gl=US

Optional: Kubevious

# manage Kubernetes remotely form the desktop and get insights into security configurations.
https://kubevious.io/open-source

References

https://microk8s.io/docs/getting-started
https://devopscube.com/install-configure-helm-kubernetes/
https://medium.com/dictcp/kubernetes-gui-clients-in-2020-kube-dashboard-lens-octant-and-kubenav-ce28df9bb0f0