gistfile1.txt

# Kubenetes (Minikube / Kubecli) and related Linux / VIM commands

#Linux / Command line

~ = return the terminal ?
Ctrl+C = cancel



## VI

i = insert text mode
esc + : + w + q = save and close file

## minikube 

minikube start 

minikube start --driver=virtualbox --no-vtx-check (for windows)

minikube stop

minikube status

minikube version

minikube node list

minikube ip

minikube delete

minikube addon list

minilube addon enable {name of addon}

minikube dashboard

minikube service web-service = display app in your web browser

minikube service web-service --url == outputs URL


## kubectl

kubectl config view

### Creating with config map 

kubectl apply -f app-blue-with-cm.yaml

kubectl get servcies

kubectl  describe service {name of service}

kubectl get namespaces

kubectl create namespace new-namespace-name 

kubectl get csr

kubectl get deployments

kubectl get replicasets

kubectl get pods

kubectl describe pod {podname}

With the -L option to the kubectl get pods command, we add extra columns in the output to list Pods with their attached Label keys and their values. In the following example, we are listing Pods with the Label keys k8s-app and label2:

kubectl get pods -L k8s-app,label2

In the following example, we are selecting all the Pods that have the k8s-app Label key set to value web-dash:

kubectl get pods -l k8s-app=web-dash

kubectl delete deployments web-dash

### Deploying using CLI

kubectl create -f webserver.yaml

kubectl create deployment webserver --image=nginx:alpine --replicas=3 --port=80

Create a webserver-svc.yaml file with the following content:

apiVersion: v1
kind: Service
metadata:
  name: web-service
  labels:
    app: nginx
spec:
  type: NodePort
  ports:
  - port: 80
    protocol: TCP
  selector:
    app: nginx 

Using kubectl, create the Service:

kubectl create -f webserver-svc.yaml

Expose a Deployment with the kubectl expose command:

kubectl expose deployment webserver --name=web-service --type=NodePort

### Config maps

kubectl create configmap my-config \
  --from-literal=key1=value1 \
  --from-literal=key2=value2

kubectl get configmaps my-config -o yaml

__

kubectl create -f customer1-configmap.yaml

kubectl create configmap permission-config \
  --from-file=<path/to/>permission-reset.properties

### Secrets

kubectl create secret generic my-password \
  --from-literal=password=mysqlpassword

kubectl get secret my-password

kubectl describe secret my-password

echo mysqlpassword | base64
echo "bXlzcWxwYXNzd29yZAo=" | base64 --decode

kubectl create -f mypass.yaml