k8s (二十五) --- kubernetes Helm之使用helm部署ingress-nginx
kubernetes Helm之使用helm部署ingress-nginx一、部署二、测试三、部署加密访问部署前将之前部署的ingress-nginx删除:[root@server1 helm]# kubectl delete namespaces ingress-nginxnamespace "ingress-nginx" deleted[root@server1 nginx-ingress]#
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部署前将之前部署的ingress-nginx删除:
[root@server1 helm]# kubectl delete namespaces ingress-nginx
namespace "ingress-nginx" deleted
[root@server1 nginx-ingress]# kubectl get ingress
\NAME CLASS HOSTS ADDRESS PORTS AGE
rewrite-example <none> www1.westos.org 10.109.140.206 80 17d
[root@server1 nginx-ingress]# kubectl delete ingress rewrite-example
ingress.extensions "rewrite-example" deleted
一、部署
拉取并解压部署文件:
[root@server1 helm]# helm search repo nginx-ingress
NAME CHART VERSION APP VERSION DESCRIPTION
stable/nginx-ingress 1.36.3 0.30.0 An nginx Ingress controller that uses ConfigMap...
stable/nginx-lego 0.3.1 Chart for nginx-ingress-controller and kube-lego
[root@server1 helm]# helm pull stable/nginx-ingress
[root@server1 helm]# ls
mychart nfs-client-provisioner nfs-client-provisioner-1.2.8.tgz nginx-ingress-1.36.3.tgz pvc.yaml
[root@server1 helm]# tar zxf nginx-ingress-1.36.3.tgz
......
[root@server1 helm]# ls
mychart nfs-client-provisioner nfs-client-provisioner-1.2.8.tgz nginx-ingress nginx-ingress-1.36.3.tgz pvc.yaml
[root@server1 helm]# cd nginx-ingress/
[root@server1 nginx-ingress]# ls
Chart.yaml ci OWNERS README.md templates values.yaml
更改变量文件:
[root@server1 nginx-ingress]# vim values.yaml
镜像及标签:
确保仓库中有该镜像。
使用主机网络:
daemoSet使用主机端口打开:
更改控制器类型为DaemoSet:
指定节点选择规则:
其中ingress: nginx
为节点标签需要给及节点添加(可以编辑文件之后添加):
由于我们使用的是hostnetwork的方式,因此不创建service:
定义deafultBackend:
需熬镜像:
其他的选项我们不做更改。
创建独立的namespace:
[root@server1 nginx-ingress]# kubectl create namespace nginx-ingress
namespace/nginx-ingress created
安装:
[root@server1 nginx-ingress]# helm -n nginx-ingress install nginx-ingress .
NAME: nginx-ingress
LAST DEPLOYED: Wed May 13 01:19:18 2020
NAMESPACE: nginx-ingress
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
The nginx-ingress controller has been installed.
......
查看:
[root@server1 nginx-ingress]# helm -n nginx-ingress list
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
nginx-ingress nginx-ingress 1 2020-05-13 01:19:18.580042874 +0800 CST deployed nginx-ingress-1.36.3 0.30.0
部署完成。
二、测试
定义deployment控制器:
[root@server1 nginx-ingress]# vim deployment.yaml
[root@server1 nginx-ingress]# cat deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: deployment-nginx
labels:
app: nginx
spec:
replicas: 2
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: myapp:v1
ports:
- containerPort: 80
[root@server1 nginx-ingress]# kubectl apply -f deployment.yaml
deployment.apps/deployment-nginx created
[root@server1 nginx-ingress]# kubectl get pod --show-labels
NAME READY STATUS RESTARTS AGE LABELS
deployment-nginx-5c58fb7c46-6fws2 1/1 Running 0 18s app=nginx,pod-template-hash=5c58fb7c46
deployment-nginx-5c58fb7c46-r924f 1/1 Running 0 18s app=nginx,pod-template-hash=5c58fb7c46
创建名为myservice的service:
[root@server1 nginx-ingress]# vim service.yaml
[root@server1 nginx-ingress]# cat service.yaml
apiVersion: v1
kind: Service
metadata:
name: myservice
spec:
ports:
- protocol: TCP
port: 80
targetPort: 80
selector:
app: nginx
type: ClusterIP
[root@server1 nginx-ingress]# kubectl apply -f service.yaml
service/myservice created
[root@server1 nginx-ingress]# kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 25d
myservice ClusterIP 10.110.156.252 <none> 80/TCP 11s
可以看到该service有两个endpoint:
[root@server1 nginx-ingress]# kubectl describe svc myservice
Name: myservice
Namespace: default
Labels: <none>
Annotations: Selector: app=nginx
Type: ClusterIP
IP: 10.110.156.252
Port: <unset> 80/TCP
TargetPort: 80/TCP
Endpoints: 10.244.1.135:80,10.244.2.115:80
Session Affinity: None
Events: <none>
创建ingress:
[root@server1 nginx-ingress]# vim ingress1.yaml
[root@server1 nginx-ingress]# cat ingress1.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
annotations:
kubernetes.io/ingress.class: nginx
name: example
# namespace:
spec:
rules:
- host: www1.westos.org
http:
paths:
- backend:
serviceName: myservice #上面定义的service的名称
servicePort: 80
path: /
[root@server1 nginx-ingress]# kubectl apply -f ingress1.yaml
ingress.extensions/example created
查看创建的ingress的详细信息:
在浏览器访问(需要做www1.westos.org的解析):
可以正常访问,后端也可正常负载:
[root@foundation63 ~]# curl www1.westos.org
Hello MyApp | Version: v1 | <a href="hostname.html">Pod Name</a>
[root@foundation63 ~]# curl www1.westos.org/hostname.html
deployment-nginx-5c58fb7c46-6fws2
[root@foundation63 ~]# curl www1.westos.org/hostname.html
deployment-nginx-5c58fb7c46-r924f
三、部署加密访问
我们之前已经创建过tls的secret:
[root@server1 nginx-ingress]# kubectl get secrets
NAME TYPE DATA AGE
1-secret Opaque 2 14d
basic-auth Opaque 1 17d
default-token-25448 kubernetes.io/service-account-token 3 25d
my-secret Opaque 2 14d
myregistrykey kubernetes.io/dockerconfigjson 1 13d
mysecret Opaque 2 14d
test-token-mjhwb kubernetes.io/service-account-token 3 4d4h
tls-secret kubernetes.io/tls 2 17d
其中的tls-secret可以直接使用:
[root@server1 nginx-ingress]# vim ingress1.yaml
[root@server1 nginx-ingress]# cat ingress1.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
annotations:
kubernetes.io/ingress.class: nginx
name: example
# namespace:
spec:
rules:
- host: www1.westos.org
http:
paths:
- backend:
serviceName: myservice
servicePort: 80
path: /
tls:
- hosts:
- www1.westos.org
secretName: tls-secret
[root@server1 nginx-ingress]# kubectl apply -f ingress1.yaml
ingress.extensions/example configured
在浏览器访问https://www1.westos.org
:
高级—>接受风险:
同样可以访问到。
当访问没有定义的地址时会返回404.
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