ingress控制器(4)
时间:2020-06-07 16:02 来源:潇湘夜雨 作者:华嵩阳 点击:次
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[root@master ingress]# kubectl describe pod nginx-ingress-controller-7b6c66657d-4cxq8 -n ingress-nginx
Name: nginx-ingress-controller-7b6c66657d-4cxq8
Namespace: ingress-nginx
Priority: 0
PriorityClassName: <none>
Node: node2.k8s/192.168.0.22
Start Time: Sun, 05 Jul 2020 17:24:31 +0800
Labels: app.kubernetes.io/name=ingress-nginx
app.kubernetes.io/part-of=ingress-nginx
pod-template-hash=7b6c66657d
Annotations: kubernetes.io/limit-ranger: LimitRanger plugin set: cpu, memory request for container nginx-ingress-controller
prometheus.io/port: 10254
prometheus.io/scrape: true
Status: Pending
IP: 10.244.2.57
Controlled By: ReplicaSet/nginx-ingress-controller-7b6c66657d
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 3m51s default-scheduler Successfully assigned ingress-nginx/nginx-ingress-controller-7b6c66657d-4cxq8 to node2.k8s
Warning Failed 3m32s kubelet, node2.k8s Failed to pull image "quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0": rpc error: code = Unknown desc
= Error response from daemon: Get https://quay.io/v2/kubernetes-ingress-controller/nginx-ingress-controller/manifests/0.30.0: net/http: TLS handshake timeout Warning Failed 2m21s (x2 over 3m4s) kubelet, node2.k8s Failed to pull image "quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0": rpc error: code = Unknown desc
= Error response from daemon: Get https://quay.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) Normal Pulling 94s (x4 over 3m50s) kubelet, node2.k8s pulling image "quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0"
Warning Failed 72s (x4 over 3m32s) kubelet, node2.k8s Error: ErrImagePull
Warning Failed 72s kubelet, node2.k8s Failed to pull image "quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0": rpc error: code = Unknown desc
= error pulling image configuration: Get https://quay.io/v2/kubernetes-ingress-controller/nginx-ingress-controller/blobs/sha256:89ccad40ce8e413ff4ceba362de33a81da1f1c5b4c909200c37898781236ef30: net/http: TLS handshake timeout Normal BackOff 61s (x6 over 3m32s) kubelet, node2.k8s Back-off pulling image "quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.30.0"
Warning Failed 49s (x7 over 3m32s) kubelet, node2.k8s Error: ImagePullBackOff
三、使用ingress发布tomcat
1、部署 tomcat 实例和services资源
Ingress 资源仅通过 Service 资源识别相应的 Pod 资源， 获取其 IP 和端口，而 Ingress
控制器即可直接使用各 Pod 对象的 IP 地址与它直接进行通信，而不经由 Se vice 资源的代
理和调度，因 Service资源的 lu sterIP ngress 控制器来说一无所用
[root@master ingress]# vim tomcat-deploy.yaml
apiVersion: v1
kind: Service
metadata:
name: tomcat
namespace: default
spec:
selector:
app: tomcat
release: canary
ports:
- name: http
targetPort: 8080
port: 8080
- name: ajp
targetPort: 8009
port: 8009
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: tomcat-deploy
namespace: default
spec:
replicas: 1
selector:
matchLabels:
app: tomcat
release: canary
template:
metadata:
labels:
app: tomcat
release: canary
spec:
containers:
- name: tomcat
image: tomcat
apiVersion: v1
kind: Service
metadata:
name: tomcat
namespace: default
spec:
selector:
app: tomcat
release: canary
ports:
- name: http
targetPort: 8080
port: 8080
- name: ajp
targetPort: 8009
port: 8009
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: tomcat-deploy
namespace: default
spec:
replicas: 1
selector:
matchLabels:
app: tomcat
release: canary
template:
metadata:
labels:
app: tomcat
release: canary
spec:
containers:
- name: tomcat
image: tomcat
ports:
- name: http
containerPort: 8080
[root@master ingress]# kubectl apply -f tomcat-deploy.yaml
[root@master ingress]# kubectl get pod -l app=tomcat
NAME READY STATUS RESTARTS AGE
tomcat-deploy-5b7878569-gh4v7 1/1 Running 0 150m
[root@master ingress]# kubectl get svc tomcat
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
tomcat ClusterIP 10.101.95.117 <none> 8080/TCP,8009/TCP 160m
2、创建 Ingress 资源
[root@master ingress]# vim ingress-tomcat.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: ingress-tomcat
annotations:
kubernets.io/ingress.class: "nginx"
spec:
rules:
- host: tomcat.lzh.com
http:
paths:
- path:
backend:
serviceName: tomcat
servicePort: 8080
3、测试
[root@master ingress]# kubectl get pods -n ingress-nginx -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES (责任编辑：liangzh) |