我在kubernetes容器中部署了我的容器，并且d容器和相关服务已启动并正在运行。
请找到下面的Pod和Pod的部署状态
root@jenkins-linux-vm:/home/admin/kubernetes# kubectl get pods
NAME READY STATUS RESTARTS AGE
angular-deployment-5d5fbf967c-zvzvl 1/1 Running 0 70m
root@jenkins-linux-vm:/home/admin/kubernetes# kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
angular-service NodePort 10.96.16.68 <none> 80:31000/TCP 79m
root@jenkins-linux-vm:/home/admin/kubernetes# kubectl get deployment
NAME READY UP-TO-DATE AVAILABLE AGE
angular-deployment 1/1 1 1 70m
请找到下面的curl访问权限
root@jenkins-linux-vm:/home/admin/kubernetes# kubectl exec -it angular-deployment-5d5fbf967c-zvzvl curl 10.0.0.1:31000
curl: (7) Failed to connect to 10.0.0.1 port 31000: Connection refused
command terminated with exit code 7
即使我无法像下面那样在浏览器中访问应用程序服务，也是如此。
https://10.0.0.1:31000
apiVersion: apps/v1
kind: Deployment
metadata:
name: angular-deployment
spec:
selector:
matchLabels:
app: frontend-app
replicas: 1
template:
metadata:
labels:
app: frontend-app
spec:
containers:
- name: frontend-app
image: ${IMAGE_NAME}:${IMAGE_TAG}
ports:
- containerPort: 80
---
kind: Service
apiVersion: v1
metadata:
name: angular-service
spec:
selector:
app: frontend-app
ports:
- protocol: TCP
port: 80
targetPort: 80
nodePort: 31000
type: NodePort
root@jenkins-linux-vm:/home/admin# kubectl describe pod angular-deployment-556c47f666-9d2x4
Name: angular-deployment-556c47f666-9d2x4
Namespace: pre-release
Priority: 0
Node: poc-worker2/10.0.0.2
Start Time: Sat, 18 Jan 2020 08:47:35 +0000
Labels: app=frontend-app
pod-template-hash=556c47f666
Annotations: <none>
Status: Running
IP: 10.32.0.8
IPs:
IP: 10.32.0.8
Controlled By: ReplicaSet/angular-deployment-556c47f666
Containers:
frontend-app:
Container ID: docker://43fea22e4c1d49e0c94fc8aca3a4b41df44b5f91f45ea29ede263c5a6bcf6503
Image: frontend-app:future-master-fix-f2d2a8bd
Image ID: docker://sha256:0099587db89de9ef999a7d1f087d4781e73c491b17e89392e92b08d2f935ad27
Port: 80/TCP
Host Port: 0/TCP
State: Running
Started: Sat, 18 Jan 2020 08:47:40 +0000
Ready: True
Restart Count: 0
Environment: <none>
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-r67p7 (ro)
Conditions:
Type Status
Initialized True
Ready True
ContainersReady True
PodScheduled True
Volumes:
default-token-r67p7:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-r67p7
Optional: false
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 21s default-scheduler Successfully assigned pre-release/angular-deployment-556c47f666-9d2x4 to poc-worker2
Normal Pulled 17s kubelet, poc-worker2 Container image "frontend-app:future-master-fix-f2d2a8bd" already present on machine
Normal Created 16s kubelet, poc-worker2 Created container frontend-app
Normal Started 16s kubelet, poc-worker2 Started container frontend-app
请找到以下是部署的svc
root@jenkins-linux-vm:/home/admin# kubectl describe svc angular-service
Name: angular-service
Namespace: pre-release
Labels: <none>
Annotations: kubectl.kubernetes.io/last-applied-configuration:
{"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"name":"angular-service","namespace":"pre-release"},"spec":{"ports":[{"no...
Selector: app=frontend-app
Type: NodePort
IP: 10.96.227.143
Port: <unset> 80/TCP
TargetPort: 80/TCP
NodePort: <unset> 31000/TCP
Endpoints: 10.32.0.4:80,10.32.0.8:80
Session Affinity: None
External Traffic Policy: Cluster
Events: <none>
请在此处找到docker文件
FROM node:12.2.0
# set working directory
WORKDIR /app
# add `/app/node_modules/.bin` to $PATH
ENV PATH /app/node_modules/.bin:$PATH
# install and cache app dependencies
COPY package.json /app/package.json
# add app
COPY . /app
# start app
CMD ng serve --host 0.0.0.0
能否请您帮我解决此问题
答案 0 :(得分：1)
在这里我可以看到问题在于您的Angular Dockerfile，您正在使用ng serve，如果您在package.json中看到您的依赖项，您将看到"@angular/cli": "*"以便将其放入您的Docker中添加RUN npm install，这会将所有依赖项安装在docker容器中，您可以执行ng serve，但是ng serve是用于本地开发的，这不是一个好方法。
要识别此类问题，建议您在本地计算机上运行类似的内容，以便在将Docker容器部署到k8s集群之前，先确定其Docker容器是否工作正常，因为您知道kubernetes是一个非常大的宇宙需要花费一些时间来确定实际问题。
可以解决这个问题（我可以简单地将一个命令添加到您的dockerfile中并添加我的答案，但是我不建议这种方法。因此添加完整的答案看起来不错），当您部署一些前端时相关应用程序，您的docker映像需要具有serving功能，即在构建Angular或React应用程序之后，index.html页面是最终产品。
有几种方法可以完成此操作。并且有几本教程对此进行了解释，我建议您这样做，您的dockerfile应该看起来像这样。添加评论内容。
#Stage0: builder, based on Node alpine imagine to build and compile your angular code
FROM node:10-alpine as builder
WORKDIR /app
COPY package*.json /app/
# This is one thing you forgot in your dockerfile, if you add this it might work
RUN npm install
COPY . .
# This is normal build, it does ng build
RUN npm run build
#Stage 1, based on Nginx imagine, to have only the compile app inside nginx folders to serve
FROM nginx:1.15
COPY --from=builder /app/dist/ /usr/share/nginx/html
# This one copies the local nginx.conf file as default.conf for nginx to let it serve
COPY ./nginx.conf /etc/nginx/conf.d/default.conf
请确保您的代码中包含nginx.conf文件，文件级别与package.json相同
server {
listen 80;
sendfile on;
default_type application/octet-stream;
gzip on;
gzip_http_version 1.1;
gzip_disable "MSIE [1-6]\.";
gzip_min_length 1100;
gzip_vary on;
gzip_proxied expired no-cache no-store private auth;
gzip_types text/plain text/css application/json application/javascript application/x-javascript text/xml application/xml application/xml+rss text/javascript;
gzip_comp_level 9;
root /usr/share/nginx/html;
location / {
#try_files $uri $uri/ /index.html =404;
expires -1d;
alias /usr/share/nginx/html/;
try_files $uri$args $uri$args/ /index.html =404;
location ~* \.(?:ico|css|js|gif|jpe?g|png|svg|woff|woff2|ttf|eot)$ {
add_header Access-Control-Allow-Origin *;
}
}
}
在将docker run部署到群集上之前，请确保在本地计算机上运行。
希望这会有所帮助。
答案 1 :(得分：0)
如果您通过nodeip:nodeport访问Pod，则仅当您使用浏览器从集群外部访问Pod时才有效。
此处是如何expose an application via NodePort的指南。在这种情况下，您的kubernetes集群的节点需要可访问，即应该具有公共ip。
您应该使用集群ip从集群内访问集群，即通过另一个集群的exec来访问集群，如以下命令所示。
kubectl exec -it angular-deployment-5d5fbf967c-zvzvl curl 10.96.16.68:80
我觉得您的docker容器未在端口80上监听。