image.png
部署ingress-controller
https://blog.csdn.net/networken/article/details/85881558
https://www.cnblogs.com/dingbin/p/9754993.html
下载nginx-ingress-controller配置文件
wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/nginx-0.21.0/deploy/mandatory.yaml
修改镜像地址
image: willdockerhub/nginx-ingress-controller:0.21.0
image: 10.0.0.11:5000/wuxingge/nginx-ingress-controller:0.21.0
[root@k8s-master1 ingree-nginx]# vim mandatory.yaml
apiVersion: v1
kind: Namespace
metadata:
name: ingress-nginx
---
kind: ConfigMap
apiVersion: v1
metadata:
name: nginx-configuration
namespace: ingress-nginx
labels:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: nginx-ingress-serviceaccount
namespace: ingress-nginx
labels:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
name: nginx-ingress-clusterrole
labels:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
rules:
- apiGroups:
- ""
resources:
- configmaps
- endpoints
- nodes
- pods
- secrets
verbs:
- list
- watch
- apiGroups:
- ""
resources:
- nodes
verbs:
- get
- apiGroups:
- ""
resources:
- services
verbs:
- get
- list
- watch
- apiGroups:
- "extensions"
resources:
- ingresses
verbs:
- get
- list
- watch
- apiGroups:
- ""
resources:
- events
verbs:
- create
- patch
- apiGroups:
- "extensions"
resources:
- ingresses/status
verbs:
- update
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: Role
metadata:
name: nginx-ingress-role
namespace: ingress-nginx
labels:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
rules:
- apiGroups:
- ""
resources:
- configmaps
- pods
- secrets
- namespaces
verbs:
- get
- apiGroups:
- ""
resources:
- configmaps
resourceNames:
# Defaults to "<election-id>-<ingress-class>"
# Here: "<ingress-controller-leader>-<nginx>"
# This has to be adapted if you change either parameter
# when launching the nginx-ingress-controller.
- "ingress-controller-leader-nginx"
verbs:
- get
- update
- apiGroups:
- ""
resources:
- configmaps
verbs:
- create
- apiGroups:
- ""
resources:
- endpoints
verbs:
- get
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: RoleBinding
metadata:
name: nginx-ingress-role-nisa-binding
namespace: ingress-nginx
labels:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: nginx-ingress-role
subjects:
- kind: ServiceAccount
name: nginx-ingress-serviceaccount
namespace: ingress-nginx
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
name: nginx-ingress-clusterrole-nisa-binding
labels:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: nginx-ingress-clusterrole
subjects:
- kind: ServiceAccount
name: nginx-ingress-serviceaccount
namespace: ingress-nginx
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: nginx-ingress-controller
namespace: ingress-nginx
labels:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
spec:
replicas: 1
selector:
matchLabels:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
template:
metadata:
labels:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
annotations:
prometheus.io/port: "10254"
prometheus.io/scrape: "true"
spec:
serviceAccountName: nginx-ingress-serviceaccount
containers:
- name: nginx-ingress-controller
image: 10.0.0.11:5000/wuxingge/nginx-ingress-controller:0.21.0
args:
- /nginx-ingress-controller
- --configmap=$(POD_NAMESPACE)/nginx-configuration
- --tcp-services-configmap=$(POD_NAMESPACE)/tcp-services
- --udp-services-configmap=$(POD_NAMESPACE)/udp-services
- --publish-service=$(POD_NAMESPACE)/ingress-nginx
- --annotations-prefix=nginx.ingress.kubernetes.io
securityContext:
capabilities:
drop:
- ALL
add:
- NET_BIND_SERVICE
# www-data -> 33
runAsUser: 33
env:
- name: POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
ports:
- name: http
containerPort: 80
- name: https
containerPort: 443
livenessProbe:
failureThreshold: 3
httpGet:
path: /healthz
port: 10254
scheme: HTTP
initialDelaySeconds: 10
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
readinessProbe:
failureThreshold: 3
httpGet:
path: /healthz
port: 10254
scheme: HTTP
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
---
执行yaml文件部署
kubectl create -f mandatory.yaml
[root@k8s-master1 ingree-nginx]# kubectl get pods -o wide -n ingress-nginx
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
nginx-ingress-controller-c9b47ff67-7pwqh 1/1 Running 0 89s 10.254.40.4 10.0.0.12 <none> <none>
nodeport方式对外提供服务
通过ingress-controller对外提供服务，现在还需要手动给ingress-controller建立一个servcie，接收集群外部流量。
service-nodeport配置文件
vim service-nodeport.yaml
apiVersion: v1
kind: Service
metadata:
name: ingress-nginx
namespace: ingress-nginx
labels:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
spec:
type: NodePort
ports:
- name: http
port: 80
protocol: TCP
nodePort: 30080
- name: https
port: 443
protocol: TCP
nodePort: 30443
selector:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
执行
kubectl create -f service-nodeport.yaml
查看
[root@k8s-master1 ingree-nginx]# kubectl get service -n ingress-nginx
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
ingress-nginx NodePort 10.254.150.28 <none> 80:30080/TCP,443:30443/TCP 8s
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
使用Ingress发布tomcat
准备名称空间
vi testing-namespace.yaml
kind: Namespace
apiVersion: v1
metadata:
name: testing
labels:
env: testing
[root@k8s-master1 ingree-nginx]# kubectl create -f testing-namespace.yaml
namespace/testing created
[root@k8s-master1 ingree-nginx]# kubectl get namespaces testing
NAME STATUS AGE
testing Active 21s
部署tomcat实例
vi tomcat-deploy.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: tomcat-deploy
namespace: testing
spec:
replicas: 2
selector:
matchLabels:
app: tomcat
template:
metadata:
labels:
app: tomcat
spec:
containers:
- name: tomcat
image: tomcat:8.0.50-jre8-alpine
ports:
- containerPort: 8080
name: httpport
- containerPort: 8009
name: ajpport
kubectl create -f tomcat-deploy.yaml
[root@k8s-master1 ingree-nginx]# kubectl get pods -n testing -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
tomcat-deploy-5c55c48479-mxfgv 1/1 Running 0 6m55s 10.254.88.5 10.0.0.12 <none> <none>
tomcat-deploy-5c55c48479-wswjl 1/1 Running 0 7m40s 10.254.102.2 10.0.0.13 <none> <none>
创建Service资源
vi tomcat-svc.yaml
apiVersion: v1
kind: Service
metadata:
name: tomcat-svc
namespace: testing
labels:
app: tomcat-svc
spec:
selector:
app: tomcat
ports:
- name: http
port: 80
targetPort: 8080
protocol: TCP
[root@k8s-master1 ingree-nginx]# kubectl create -f tomcat-svc.yaml
service/tomcat-svc created
[root@k8s-master1 ingree-nginx]# kubectl get service -n testing -o wide
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
tomcat-svc ClusterIP 10.254.198.130 <none> 80/TCP 25s app=tomcat
创建Ingress资源
vi tomcat-ingress.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: tomcat
namespace: testing
annotations:
kubernetes.io/ingress.class: "nginx"
spec:
rules:
- host: tomcat.wuxingge.com
http:
paths:
- path:
backend:
serviceName: tomcat-svc
servicePort: 80
kubectl create -f tomcat-ingress.yaml
[root@k8s-master1 ingree-nginx]# kubectl describe ingresses.extensions -n testing
Name: tomcat
Namespace: testing
Address:
Default backend: default-http-backend:80 (<none>)
Rules:
Host Path Backends
---- ---- --------
tomcat.wuxingge.com
tomcat-svc:80 (<none>)
Annotations:
kubernetes.io/ingress.class: nginx
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal CREATE 44s nginx-ingress-controller Ingress testing/tomcat
[root@k8s-master1 ingree-nginx]# kubectl get ingresses.extensions -n testing
NAME HOSTS ADDRESS PORTS AGE
tomcat tomcat.wuxingge.com 80 76s
查看ingress-default-backend的详细信息
kubectl exec -n ingress-nginx -ti nginx-ingress-controller-c9b47ff67-7pwqh -- /bin/sh
$
$ cat nginx.conf
hosts解析
[root@k8s-master1 ingree-nginx]# kubectl get pods -o wide -n ingress-nginx
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
nginx-ingress-controller-c9b47ff67-vq9cc 1/1 Running 0 85m 10.254.88.3 ** 10.0.0.12** <none> <none>
[root@k8s-master1 ingree-nginx]# kubectl get service -o wide -n ingress-nginx
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
ingress-nginx NodePort 10.254.150.28 <none> 80:30080/TCP,443:30443/TCP 77m app.kubernetes.io/name=ingress-nginx,app.kubernetes.io/part-of=ingress-nginx
10.0.0.12 tomcat.wuxingge.com
访问
http://tomcat.wuxingge.com:30080/
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
wordpress ingress
部署MySQL
创建Secret对象
kubectl create secret generic mysql-pass --from-literal=password=Wxg@123.com
kubectl get secrets
pv
[root@k8s-master1 wordpress]# vim mysql_nfs_pv.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: pv1-nfs
labels:
app: pv1-nfs
spec:
capacity:
storage: 20Gi
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Recycle
nfs:
server: 10.0.0.11
path: /data/db
pvc
[root@k8s-master1 wordpress]# vim mysql_nfs_pvc.yaml
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: mysql-pv-claim
labels:
app: wordpress
spec:
accessModes:
- ReadWriteMany
resources:
requests:
storage: 20Gi
deployment_service
[root@k8s-master1 wordpress]# vim mysql-deployment.yaml
apiVersion: v1
kind: Service
metadata:
name: wordpress-mysql
labels:
app: wordpress
spec:
ports:
- port: 3306
selector:
app: wordpress
tier: mysql
clusterIP: None
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: wordpress-mysql
labels:
app: wordpress
spec:
replicas: 1
selector:
matchLabels:
app: wordpress
tier: mysql
strategy:
type: Recreate
template:
metadata:
labels:
app: wordpress
tier: mysql
spec:
containers:
- name: mysql
image: mysql:5.7
env:
- name: MYSQL_ROOT_PASSWORD
valueFrom:
secretKeyRef:
name: mysql-pass
key: password
ports:
- name: mysql
containerPort: 3306
volumeMounts:
- name: mysql-persistent-storage
mountPath: /var/lib/mysql
volumes:
- name: mysql-persistent-storage
persistentVolumeClaim:
claimName: mysql-pv-claim
官方MySQL镜像
/etc/mysql/mysql.conf.d/mysqld.cnf
部署wordpress
pv
vi wordpress_nfs_pv.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: pv2-nfs
labels:
app: pv2-nfs
spec:
capacity:
storage: 20Gi
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Recycle
nfs:
server: 10.0.0.11
path: /data/web
pvc
vi wordpress_nfs_pvc.yaml
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: wp-pv-claim
labels:
app: wordpress
spec:
accessModes:
- ReadWriteMany
resources:
requests:
storage: 20Gi
deployment-service
vi wordpress-deployment.yaml
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: wordpress
labels:
app: wordpress
spec:
replicas: 2
selector:
matchLabels:
app: wordpress
tier: frontend
strategy:
type: Recreate
template:
metadata:
labels:
app: wordpress
tier: frontend
spec:
containers:
- name: wordpress
image: wordpress:4.8-apache
env:
- name: WORDPRESS_DB_HOST
value: wordpress-mysql
- name: WORDPRESS_DB_PASSWORD
valueFrom:
secretKeyRef:
name: mysql-pass
key: password
ports:
- name: wordpress
containerPort: 80
volumeMounts:
- name: wordpress-persistent-storage
mountPath: /var/www/html
volumes:
- name: wordpress-persistent-storage
persistentVolumeClaim:
claimName: wp-pv-claim
---
apiVersion: v1
kind: Service
metadata:
name: wordpress
labels:
app: wordpress
spec:
ports:
- name: wordpress
port: 80
targetPort: 80
protocol: TCP
selector:
app: wordpress
tier: frontend
ingress
vi wordpress-ingress.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: wordpress
annotations:
kubernetes.io/ingress.class: "nginx"
spec:
rules:
- host: wordpress.wuxingge.com
http:
paths:
- path:
backend:
serviceName: wordpress
servicePort: 80
hosts解析
[root@k8s-master1 ingree-nginx]# kubectl get pods -o wide -n ingress-nginx
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
nginx-ingress-controller-c9b47ff67-vq9cc 1/1 Running 0 85m 10.254.88.3 **10.0.0.12** <none> <none>
[root@k8s-master1 ingree-nginx]# kubectl get service -o wide -n ingress-nginx
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
ingress-nginx NodePort 10.254.150.28 <none> 80:30080/TCP,443:30443/TCP 77m app.kubernetes.io/name=ingress-nginx,app.kubernetes.io/part-of=ingress-nginx
10.0.0.12 wordpress.wuxingge.com
访问
http://wordpress.wuxingge.com:30080/
ingress-nginx配置https转发dashboard
生成ingress-secret证书
root@k8s-master1 ingree-nginx]# kubectl -n kube-system create secret tls ingress-secret --key /certs/dashboard.key --cert /certs/dashboard.crt
secret/ingress-secret created
创建ingress服务
vi k8s.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: dashboard-ingress
namespace: kube-system
annotations:
nginx.ingress.kubernetes.io/ingress.class: nginx
nginx.ingress.kubernetes.io/secure-backends: "true"
nginx.ingress.kubernetes.io/ssl-passthrough: "true"
spec:
tls:
- hosts:
- dashboard.wuxingge.com
secretName: ingress-secret
rules:
- host: dashboard.wuxingge.com
http:
paths:
- path: /
backend:
serviceName: kubernetes-dashboard
servicePort: 443
kubectl create -f k8s.yaml
[root@k8s-master1 yaml]# kubectl get ingresses.extensions -n kube-system
NAME HOSTS ADDRESS PORTS AGE
dashboard-ingress dashboard.wuxingge.com 80, 443 35s
[root@k8s-master1 yaml]# kubectl describe ingresses.extensions -n kube-system dashboard-ingress
Name: dashboard-ingress
Namespace: kube-system
Address:
Default backend: default-http-backend:80 (<none>)
TLS:
ingress-secret terminates dashboard.wuxingge.com
Rules:
Host Path Backends
---- ---- --------
dashboard.wuxingge.com
/ kubernetes-dashboard:443 (10.254.88.4:8443)
Annotations:
nginx.ingress.kubernetes.io/ssl-passthrough: true
nginx.ingress.kubernetes.io/ingress.class: nginx
nginx.ingress.kubernetes.io/secure-backends: true
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal CREATE 3m32s nginx-ingress-controller Ingress kube-system/dashboard-ingress
hosts解析
[root@k8s-master1 yaml]# kubectl get service -n ingress-nginx
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
ingress-nginx NodePort 10.254.150.28 <none> 80:30080/TCP,443:**30443**/TCP 14h
[root@k8s-master1 yaml]# kubectl get pods -n ingress-nginx -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
nginx-ingress-controller-c9b47ff67-vq9cc 1/1 Running 1 14h 10.254.88.3 **10.0.0.12** <none> <none>
10.0.0.12 dashboard.wuxingge.com
