Ansilh Kubernetes Guide 4
layout: post title: “ ansilh’s k8s guide 5 “
categories: jekyll update
PART 5
CONFIGMAPS
create
from literal
kubectl create configmap myconfig --from-literal=VAR1=val1
k create configmap cc --from-literal=suername=admin --dry-run -o yaml > cc.yaml
apiVersion: v1
data:
suername: admin
kind: ConfigMap
metadata:
creationTimestamp: null
name: cc
kubectl create -f cc.yaml
from file
cat <<EOF >configFile
This content is coming from a file
EOF
then:
kubectl create configmap myconfig --from-file=configFile
apiVersion: v1
kind: ConfigMap
metadata:
name: myconfig
data:
configFile: |
This content is coming from a file
Also this file have multiple lines
kubectl create -f cc.yaml
use
SECRETS
create
use
DEPLOYMENT
##
kubectl get pod nginx-7cdbd8cdc9-vfbn8 --show-labels
label: run=nginx
create a svc to expose deploy nginx :
apiVersion: v1
kind: Service
metadata:
creationTimestamp: null
labels:
run: nginx-svc
name: nginx-svc
spec:
ports:
- port: 80
protocol: TCP
targetPort: 80
selector:
run: nginx
type: LoadBalancer
或者：
直接使用命令：
k expose deployment nginx --port=80 --target-port=80 --dry-run -o yaml > svc.yaml
apiVersion: v1
kind: Service
metadata:
creationTimestamp: null
labels:
run: nginx
name: nginx
spec:
ports:
- port: 80
protocol: TCP
targetPort: 80
selector:
run: nginx
status:
loadBalancer: {}
然后：
kubectl apply -f nginx-svc.yaml
使用busybox访问：
k run b --image=busybox --restart=Never -it --rm -- /bin/sh
Deployment
