minikube
=========
###### tags: `kubernetes`
<kbd>minikube</kbd> runs an all-in-one or a multi-node local Kubernetes cluster on your personal computer.
## how to install minikube

curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-darwin-amd64
sudo install minikube-darwin-amd64 /usr/local/bin/minikube

## how to start
#### 「docker」 driver

minikube start --driver=docker --kubernetes-version=v1.28.2
minikube config set driver docker

> The direct access only works on Linux, the docker network is not accessible on macOS or on Windows
> > 所以需要使用<kbd>minikube tunnel</kbd>


#### 「hyperkit」 driver

minikube start --driver=hyperkit \
--kubernetes-version=v1.28.2 \
--nodes=1 \
--memory=8g --cpus=4 --disk-size=20g \
--force-systemd=true

minikube config set driver hyperkit

#### parameter options
+ `--driver=''`:
~ Driver is one of: virtualbox, parallels, hyperkit, vmware, qemu2, docker, podman (experimental), ssh (defaults
to auto-detect)
+ `--container-runtime=''`:
~ The container runtime to be used. Valid options: **docker**, **cri-o**, **containerd** (default: auto)
+ `--force-systemd=false`:
~ If set, force the container runtime to use systemd as cgroup manager. Defaults to false.
+ `-n, --nodes=1`:
~ The number of nodes to spin up. Defaults to 1.

## command line

minikube status
minikube delete --all --purge
minikube addons list
minikube dashboard
eval $(minikube -p minikube docker-env)

+ <kbd>minikube tunnel</kbd>: Connect to LoadBalancer services

$ minikube profile list
|----------|-----------|---------|---------------|------|---------|---------|-------|--------|
| Profile  | VM Driver | Runtime |      IP       | Port | Version | Status  | Nodes | Active |
|----------|-----------|---------|---------------|------|---------|---------|-------|--------|
| minikube | hyperkit  | docker  | 192.168.64.16 | 8443 | v1.26.3 | Running |     1 | *      |
|----------|-----------|---------|---------------|------|---------|---------|-------|--------|

## Enable the Nginx Ingress controller

minikube addons enable ingress

kubectl get pods -n ingress-nginx

The output is similar to:

NAME                                        READY   STATUS      RESTARTS   AGE
ingress-nginx-admission-create-wnngw        0/1     Completed   0          62m
ingress-nginx-admission-patch-cw92v         0/1     Completed   1          62m
ingress-nginx-controller-5959f988fd-dfn46   1/1     Running     0          62m

## Enable metrics-server

$ minikube addons enable metrics-server

$ kubectl top node --sort-by='cpu'
NAME           CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%   
controlplane   301m         0%     1283Mi          0%        
node01         29m          0%     371Mi           0%        

$ kubectl top pod -n ${namespace}
NAME       CPU(cores)   MEMORY(bytes)   
elephant   20m          32Mi