前言

因为之前根据一些网上的教程一个个部分实践过整个部署流程,但都是根据现有的程序/ymal文件等进行创建部署,未能根据自己特定的项目进行部署。因此,这篇博文,打算完整部署一个自己编写的python+flask+html项目。

构建镜像的过程中有很多出现的问题,笔者把过程也都列出来了,或许有些朋友会遇到一些类似的问题,可供参考。若是觉得累赘,也可直接跳到关键步骤进行查看(都标出来了)

此帖主要为记录自己部署的流程!

第一步:构建镜像

0 第一次构建

# 创建项目文件夹
root@master:/home/hqc/docker_learning# mkdir plus-of-arrays

# 创建模板文件夹用于存放html文件
root@master:/home/hqc/docker_learning/plus-of-arrays# mkdir templates

# 编写html文件
root@master:/home/hqc/docker_learning/plus-of-arrays# vim plus.html
	<!DOCTYPE html>
	<html lang="en">
	<head>
	    <meta charset="UTF-8">
	    <title>plus of array</title>
	</head>
	<body>
	list1 is :{{list1}}
	<br>
	list2 is :{{list2}}
	<br>
	<br>
	list1 plus list2 is : {{list}}
	</body>
	</html>
# 实现的是两个数组相加的功能

root@master:/home/hqc/docker_learning/plus-of-arrays# ls
plus.html  templates
root@master:/home/hqc/docker_learning/plus-of-arrays# mv plus.html templates/
root@master:/home/hqc/docker_learning/plus-of-arrays# ls
templates
# 将创建的html文件移入模板文件夹中

# 编写python程序
root@master:/home/hqc/docker_learning/plus-of-arrays# vim array-plus.py
	#!/usr/bin/env python
	# -*- coding: utf-8 -*-
	# @Time : 2021/12/10 上午10:14
	# @Author : hqc
	# @File : plus_of_array.py
	# @Software: PyCharm
	from flask import Flask,render_template
	
	app = Flask(__name__)
	
	@app.route('/index')
	def index():
	    list1 = [1,2,3,4,5,6]
	    list2 = [2,3,4,5,6,7]
	    list = [ list1[i]+list2[i] for i in range(min(len(list1),len(list2))) ]
	    return render_template('plus.html',list = list,list1 = list1,list2 = list2)
	
	if __name__ == '__main__':
	    app.run()
	    
root@master:/home/hqc/docker_learning/plus-of-arrays# ls
array-plus.py  templates

# 验证程序效果
root@master:/home/hqc/docker_learning/plus-of-arrays# python array-plus.py 
	 * Serving Flask app 'array-plus' (lazy loading)
	 * Environment: production
	   WARNING: This is a development server. Do not use it in a production deployment.
	   Use a production WSGI server instead.
	 * Debug mode: off
	 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
	127.0.0.1 - - [10/Dec/2021 11:36:18] "GET /index HTTP/1.1" 200 -
	127.0.0.1 - - [10/Dec/2021 11:36:19] "GET /index HTTP/1.1" 200 -

# 编写Dockerfile文件
root@master:/home/hqc/docker_learning/plus-of-arrays# vim Dockerfile
FROM python
RUN mkdir -p /array-plus \
COPY ./templates/* /array-plus/
COPY array-plus.py /array-plus/
EXPOSE 80
RUN /bin/bash -c 'echo init ok'

# 构建镜像
root@master:/home/hqc/docker_learning/plus-of-arrays# docker build -t array-plus:v1.0 .
	Sending build context to Docker daemon  4.608kB
	Step 1/6 : FROM python
	 ---> f48ea80eae5a
	Step 2/6 : RUN mkdir -p /array-plus
	 ---> Using cache
	 ---> 2e1bfa6c2c76
	Step 3/6 : COPY ./templates/* /array-plus/
	 ---> 385c39be4fba
	Step 4/6 : COPY array-plus.py /array-plus/
	 ---> 5523bef7ba17
	Step 5/6 : EXPOSE 80
	 ---> Running in 10de283ba678
	Removing intermediate container 10de283ba678
	 ---> 922b030ff0a1
	Step 6/6 : RUN /bin/bash -c 'echo init ok'
	 ---> Running in 32e175765578
	init ok
	Removing intermediate container 32e175765578
	 ---> 0ed6350571d5
	Successfully built 0ed6350571d5
	Successfully tagged array-plus:v1.0

# 运行
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run array-plus:v1.0
# 发现并无任何结果,可能是少了ui文件

1 尝试解决1

分析原因:结合上次部署html项目时需要加入一个ui界面用于显示的经验来说,可能是少了ui文件

# 修改Dokcerfile
root@master:/home/hqc/docker_learning/plus-of-arrays# vim Dockerfile
	FROM python
	RUN mkdir -p /array-plus \
	    && rm /etc/nginx/conf.d/default.conf
	COPY ./templates/* /array-plus/
	COPY array-plus.py /array-plus/
	COPY plus.conf /etc/nginx/conf.d/default.conf
	EXPOSE 80
	RUN /bin/bash -c 'echo init ok'

# 编写名为plus.conf的ui文件
server {
	  listen 80;
	  location / {
	       root /array-plus/;
	       index lovestory.html; # 源码文件
	}
	}

# 再次构建
root@master:/home/hqc/docker_learning/plus-of-arrays# docker build -t array-plus:v1.1 .
	Sending build context to Docker daemon  5.632kB
	Step 1/7 : FROM nginx
	 ---> ea335eea17ab
	Step 2/7 : RUN mkdir -p /array-plus     && rm /etc/nginx/conf.d/default.conf
	 ---> Running in 73364b010397
	Removing intermediate container 73364b010397
	 ---> efcd0c60672d
	Step 3/7 : COPY ./templates/* /array-plus/
	 ---> 67fbcbf54aed
	Step 4/7 : COPY array-plus.py /array-plus/
	 ---> 2613cca37078
	Step 5/7 : COPY plus.conf /etc/nginx/conf.d/default.conf
	 ---> 9b49e46e5093
	Step 6/7 : EXPOSE 80
	 ---> Running in 83c146f1ac45
	Removing intermediate container 83c146f1ac45
	 ---> b7778c67197c
	Step 7/7 : RUN /bin/bash -c 'echo init ok'
	 ---> Running in 4585a0bb8fd7
	init ok
	Removing intermediate container 4585a0bb8fd7
	 ---> e3cddd224cc5
	Successfully built e3cddd224cc5
	Successfully tagged array-plus:v1.1

# 再次运行
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run array-plus:v1.1
	/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
	/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
	/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
	10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf
	10-listen-on-ipv6-by-default.sh: info: /etc/nginx/conf.d/default.conf differs from the packaged version
	/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
	/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
	/docker-entrypoint.sh: Configuration complete; ready for start up
	2021/12/10 03:54:16 [notice] 1#1: using the "epoll" event method
	2021/12/10 03:54:16 [notice] 1#1: nginx/1.21.4
	2021/12/10 03:54:16 [notice] 1#1: built by gcc 10.2.1 20210110 (Debian 10.2.1-6) 
	2021/12/10 03:54:16 [notice] 1#1: OS: Linux 5.4.0-91-generic
	2021/12/10 03:54:16 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
	2021/12/10 03:54:16 [notice] 1#1: start worker processes
	2021/12/10 03:54:16 [notice] 1#1: start worker process 30
	...
# 运行效果不对,可能需要暴露端口什么的

# 再次运行,成功
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run -d -p 1111:80 array-plus:v1.1
55f463aa181dd84edf3fb83232fdc4d4fb0cbad6076b170d54f93aef4e5f00ee


但是,ip+端口号访问失败
在这里插入图片描述

2 尝试解决2

分析原因:怀疑可能是py程序后面要跟的‘/index’的问题

# 遂修改py程序
root@master:/home/hqc/docker_learning/plus-of-arrays# vim array-plus.py
	#!/usr/bin/env python
	# -*- coding: utf-8 -*-
	# @Time : 2021/12/10 上午10:14
	# @Author : hqc
	# @File : plus_of_array.py
	# @Software: PyCharm
	from flask import Flask,render_template
	
	app = Flask(__name__)
	
	@app.route('/') 
	def index():
	    list1 = [1,2,3,4,5,6]
	    list2 = [2,3,4,5,6,7]
	    list = [ list1[i]+list2[i] for i in range(min(len(list1),len(list2))) ]
	    return render_template('plus.html',list = list,list1 = list1,list2 = list2)
	
	if __name__ == '__main__':
	    app.run()
	    
root@master:/home/hqc/docker_learning/plus-of-arrays# ls
array-plus.py  templates
# 修改为根目录‘/’

root@master:/home/hqc/docker_learning/plus-of-arrays# docker build -t array-plus:v1.2 .
	Sending build context to Docker daemon  5.632kB
	Step 1/7 : FROM nginx
	 ---> ea335eea17ab
	Step 2/7 : RUN mkdir -p /array-plus     && rm /etc/nginx/conf.d/default.conf
	 ---> Using cache
	 ---> efcd0c60672d
	Step 3/7 : COPY ./templates/* /array-plus/
	 ---> Using cache
	 ---> 67fbcbf54aed
	Step 4/7 : COPY array-plus.py /array-plus/
	 ---> d1856a23fa81
	Step 5/7 : COPY plus.conf /etc/nginx/conf.d/default.conf
	 ---> d26866bbdc37
	Step 6/7 : EXPOSE 80
	 ---> Running in 906672daa310
	Removing intermediate container 906672daa310
	 ---> 2c51759a4bec
	Step 7/7 : RUN /bin/bash -c 'echo init ok'
	 ---> Running in 8b87e01ac112
	init ok
	Removing intermediate container 8b87e01ac112
	 ---> b48902c70940
	Successfully built b48902c70940
	Successfully tagged array-plus:v1.2
	
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run -d -p 1112:80 array-plus:v1.2
	12b61389ec321693aec05db88a5d7b0df585e17af3cf418e635aeaf97bf584b7

仍然无法访问:
在这里插入图片描述

3 尝试解决3

分析原因:可能是py程序默认端口是5000的问题,而不应该是80

# 修改Dockerfile
root@master:/home/hqc/docker_learning/plus-of-arrays# vim Dockerfile
	EXPOSE 5000

# 修改plus.conf
root@master:/home/hqc/docker_learning/plus-of-arrays# vim plus.conf
	listen 5000

root@master:/home/hqc/docker_learning/plus-of-arrays# docker build -t array-plus:v1.3 .
	Sending build context to Docker daemon  5.632kB
	Step 1/7 : FROM nginx
	 ---> ea335eea17ab
	Step 2/7 : RUN mkdir -p /array-plus     && rm /etc/nginx/conf.d/default.conf
	 ---> Using cache
	 ---> efcd0c60672d
	Step 3/7 : COPY ./templates/* /array-plus/
	 ---> Using cache
	 ---> 67fbcbf54aed
	Step 4/7 : COPY array-plus.py /array-plus/
	 ---> Using cache
	 ---> d1856a23fa81
	Step 5/7 : COPY plus.conf /etc/nginx/conf.d/default.conf
	 ---> e2f7f1d236e7
	Step 6/7 : EXPOSE 5000
	 ---> Running in 2bd9f2d36bdc
	Removing intermediate container 2bd9f2d36bdc
	 ---> 5cc24d47cdeb
	Step 7/7 : RUN /bin/bash -c 'echo init ok'
	 ---> Running in 3e7532707bcd
	init ok
	Removing intermediate container 3e7532707bcd
	 ---> 080098572156
	Successfully built 080098572156
	Successfully tagged array-plus:v1.3
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run -d -p 1113:5000 array-plus:v1.3
	4786aa5b12f6d7aa114cbf1b4dbf2ea4a399c0fb25b9036eb76bee843213688e

仍然失败!!!qswl

4 尝试解决4

# 查看运行中的容器
root@master:/home/hqc/docker_learning/plus-of-arrays# docker ps
	CONTAINER ID   IMAGE             COMMAND                  CREATED       STATUS       PORTS                                               NAMES
	4786aa5b12f6   array-plus:v1.3   "/docker-entrypoint.…"   4 hours ago   Up 4 hours   80/tcp, 0.0.0.0:1113->5000/tcp, :::1113->5000/tcp   elastic_swirles
	12b61389ec32   array-plus:v1.2   "/docker-entrypoint.…"   4 hours ago   Up 4 hours   0.0.0.0:1112->80/tcp, :::1112->80/tcp               relaxed_merkle
	55f463aa181d   array-plus:v1.1   "/docker-entrypoint.…"   4 hours ago   Up 4 hours   0.0.0.0:1111->80/tcp, :::1111->80/tcp               hungry_wright

# 进入该容器进行查看
root@master:/home/hqc/docker_learning/plus-of-arrays# docker exec -it 12b61389ec32 /bin/bash
root@12b61389ec32:/# ls
array-plus  bin  boot  dev  docker-entrypoint.d  docker-entrypoint.sh  etc  home  lib  lib64  media  mnt  opt  proc  root  run	sbin  srv  sys	tmp  usr  var
root@12b61389ec32:/# cd array-plus/
root@12b61389ec32:/array-plus# ls
array-plus.py  plus.html
# 发现里边的目录结构和本机中的不同,需要调整

# 修改Dockerfile
root@master:/home/hqc/docker_learning/plus-of-arrays# vim Dockerfile
	FROM nginx
	RUN mkdir -p /array-plus \
	    && mkdir -p /array-plus/templates \
	    && rm /etc/nginx/conf.d/default.conf
	COPY ./templates/* /array-plus/templates
	COPY array-plus.py /array-plus/
	COPY plus.conf /etc/nginx/conf.d/default.conf
	EXPOSE 5000
	RUN /bin/bash -c 'echo init ok'
	
root@master:/home/hqc/docker_learning/plus-of-arrays# docker build -t array-plus:v1.5 .
	Sending build context to Docker daemon  5.632kB
	Step 1/7 : FROM nginx
	 ---> ea335eea17ab
	Step 2/7 : RUN mkdir -p /array-plus     && mkdir -p /array-plus/templates     && rm /etc/nginx/conf.d/default.conf
	 ---> Using cache
	 ---> 52cdfa067df3
	Step 3/7 : COPY ./templates/* /array-plus/templates
	 ---> f0b746b473ba
	Step 4/7 : COPY array-plus.py /array-plus/
	 ---> 4bf1d3f2b49d
	Step 5/7 : COPY plus.conf /etc/nginx/conf.d/default.conf
	 ---> 257f3c1d8d37
	Step 6/7 : EXPOSE 5000
	 ---> Running in ecebc719a0ed
	Removing intermediate container ecebc719a0ed
	 ---> 1ee4941610ef
	Step 7/7 : RUN /bin/bash -c 'echo init ok'
	 ---> Running in baf0c12e99a2
	init ok
	Removing intermediate container baf0c12e99a2
	 ---> 07d60b8f1224
	Successfully built 07d60b8f1224
	Successfully tagged array-plus:v1.5
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run -d -p 1115:5000 array-plus:v1.5
	55e31feeaed7ddc9217b0ef9ed4058e0a6afd175798beb01810b06ef9232bbf1

仍然无法正常访问!

# 进入该容器查看
root@master:/home/hqc/docker_learning/plus-of-arrays# docker exec -it 55e31feeaed7 /bin/bash

root@55e31feeaed7:/# ls
	array-plus  bin  boot  dev  docker-entrypoint.d  docker-entrypoint.sh  etc  home  lib  lib64  media  mnt  opt  proc  root  run	sbin  srv  sys	tmp  usr  var
root@55e31feeaed7:/# cd array-plus/
root@55e31feeaed7:/array-plus# ls
	array-plus.py  templates
root@55e31feeaed7:/array-plus# cd templates/
root@55e31feeaed7:/array-plus/templates# ls
	plus.html
# 可见,文件目录是正确的

root@55e31feeaed7:/array-plus/templates# cd ..
# 在容器中直接运行试试
root@55e31feeaed7:/array-plus# python array-plus.py 
	bash: python: command not found
# 报错:未能找到该命令

5 尝试解决5(关键步骤)

分析原因:不能基于nginx制作镜像,因为里边没有配置python和flask环境,自然无法运行该项目;另外,可能并不需要制作ui界面

root@master:/home/hqc/docker_learning/plus-of-arrays# vim Dockerfile
	FROM python
	RUN mkdir -p /array-plus \
	    && mkdir -p /array-plus/templates \
	    && pip install flask
	COPY ./templates/plus.html /array-plus/templates
	COPY array-plus.py /array-plus/
	WORKDIR /array-plus
	# COPY plus.conf /etc/nginx/conf.d/default.conf
	EXPOSE 5000
	RUN /bin/bash -c 'echo init ok'
	CMD ["python", "array-plus.py"]
  1. WORKDIR /array-plus语句的作用是:进入该容器时会默认进入工作目录
  2. 添加了CMD ["python", "array-plus.py"]语句,用来执行py程序
  3. 最重要的是换了基础镜像python,以及添加了pip install flask语句用来配置flask环境
  4. 注意拷贝本机文件到容器中的方式:COPY ./templates/plus.html /array-plus/templates
# 运行该镜像
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run -d -p 1116:5000 array-plus:v1.6

访问失败????
在这里插入图片描述
但失败界面和之前403报错的不同了,也不知道是为啥。。

# 进入容器查看
root@master:/home/hqc/docker_learning/plus-of-arrays# docker exec -it 9c1312d06381 /bin/bash

# 在容器中运行程序
root@9c1312d06381:/array-plus# python array-plus.py 
	 * Serving Flask app 'array-plus' (lazy loading)
	 * Environment: production
	   WARNING: This is a development server. Do not use it in a production deployment.
	   Use a production WSGI server instead.
	 * Debug mode: off
	Traceback (most recent call last):
	  File "/array-plus/array-plus.py", line 19, in <module>
	    app.run()
	  File "/usr/local/lib/python3.10/site-packages/flask/app.py", line 920, in run
	    run_simple(t.cast(str, host), port, self, **options)
	  File "/usr/local/lib/python3.10/site-packages/werkzeug/serving.py", line 1010, in run_simple
	    inner()
	  File "/usr/local/lib/python3.10/site-packages/werkzeug/serving.py", line 950, in inner
	    srv = make_server(
	  File "/usr/local/lib/python3.10/site-packages/werkzeug/serving.py", line 782, in make_server
	    return ThreadedWSGIServer(
	  File "/usr/local/lib/python3.10/site-packages/werkzeug/serving.py", line 688, in __init__
	    super().__init__(server_address, handler)  # type: ignore
	  File "/usr/local/lib/python3.10/socketserver.py", line 452, in __init__
	    self.server_bind()
	  File "/usr/local/lib/python3.10/http/server.py", line 138, in server_bind
	    socketserver.TCPServer.server_bind(self)
	  File "/usr/local/lib/python3.10/socketserver.py", line 466, in server_bind
	    self.socket.bind(self.server_address)
	OSError: [Errno 98] Address already in use
# 运行报错:端口占用问题

分析原因:可能是之前运行的容器暴露的都是5000,且并未停止
解决:停掉之前的所有容器

# 全部停掉
docker stop 55e31feeaed7 # 此处 55e31feeaed7 为容器ID

但仍然未解决???

6 尝试解决6

因为不清楚为啥停掉了之前的所有运行中的容器,仍然显示端口已被占用,因此,决定暴露一个新的端口5001。

root@master:/home/hqc/docker_learning/plus-of-arrays# vim array-plus.py 
	#!/usr/bin/env python
	# -*- coding: utf-8 -*-
	# @Time : 2021/12/10 上午10:14
	# @Author : hqc
	# @File : array-plus.py
	# @Software: PyCharm
	from flask import Flask,render_template
	
	app = Flask(__name__)
	
	@app.route('/')
	def index():
	    list1 = [1,2,3,4,5,6]
	    list2 = [2,3,4,5,6,7]
	    list = [ list1[i]+list2[i] for i in range(min(len(list1),len(list2))) ]
	    return render_template('plus.html',list = list,list1 = list1,list2 = list2)
	
	if __name__ == '__main__':
	    app.run(port = '5001')

还是没解决???
突然发现端口好像不需要打上引号。。
修改为app.run(port = 5001)之后运行,还是显示端口被占用???哎~累了累了

7 尝试解决7

一直被占用adress所困扰,干脆把默认ip换成本机IP,端口也换到6000
可以成功构建,也可以映射端口2222后运行可以,但docker ps查看容器时没有,并且发现运行容器后就立马退出了???咱也不知道是啥问题呀

只好先改回默认adress和port

root@master:/home/hqc/docker_learning/plus-of-arrays# vim array-plus.py 
root@master:/home/hqc/docker_learning/plus-of-arrays# vim Dockerfile 
root@master:/home/hqc/docker_learning/plus-of-arrays# docker build -t array-plus:v2.4 .
	Sending build context to Docker daemon  5.632kB
	Step 1/8 : FROM python
	 ---> f48ea80eae5a
	Step 2/8 : RUN mkdir -p /array-plus     && mkdir -p /array-plus/templates     && pip install flask
	 ---> Using cache
	 ---> 1348fc1e170d
	Step 3/8 : COPY ./templates/plus.html /array-plus/templates
	 ---> Using cache
	 ---> 63a3d5c65ade
	Step 4/8 : COPY array-plus.py /array-plus/
	 ---> Using cache
	 ---> 01a1e208d021
	Step 5/8 : WORKDIR /array-plus
	 ---> Using cache
	 ---> 47a2a2cf5902
	Step 6/8 : EXPOSE 5000
	 ---> Using cache
	 ---> 2c373fb07eae
	Step 7/8 : RUN /bin/bash -c 'echo init ok'
	 ---> Using cache
	 ---> f1bae3ef5919
	Step 8/8 : CMD ["python", "array-plus.py"]
	 ---> Using cache
	 ---> c93ff28fea14
	Successfully built c93ff28fea14
	Successfully tagged array-plus:v2.4
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run -d -p 1121:5000 array-plus:v2.4
	ce08f056a47127f455195fd835b79b1238ccebd010ee19247a3a33acc3be4d0f
root@master:/home/hqc/docker_learning/plus-of-arrays# docker ps
	CONTAINER ID   IMAGE             COMMAND                  CREATED         STATUS         PORTS                                       NAMES
	ce08f056a471   array-plus:v2.4   "python array-plus.py"   3 seconds ago   Up 3 seconds   0.0.0.0:1121->5000/tcp, :::1121->5000/tcp   goofy_ganguly
# 仍然无法访问


# 尝试直接run,不映射端口
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run array-plus:v2.4
	 * Serving Flask app 'array-plus' (lazy loading)
	 * Environment: production
	   WARNING: This is a development server. Do not use it in a production deployment.
	   Use a production WSGI server instead.
	 * Debug mode: off
	 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
# 正常运行起来了!!!!

但还是无法访问

# 进入容器后运行程序
root@master:/home/hqc/docker_learning/plus-of-arrays# docker exec -it ce08f056a471 /bin/bash
root@ce08f056a471:/array-plus# python array-plus.py 
	 * Serving Flask app 'array-plus' (lazy loading)
	 * Environment: production
	   WARNING: This is a development server. Do not use it in a production deployment.
	   Use a production WSGI server instead.
	 * Debug mode: off
	Traceback (most recent call last):
	  File "/array-plus/array-plus.py", line 19, in <module>
	    app.run()
	  File "/usr/local/lib/python3.10/site-packages/flask/app.py", line 920, in run
	    run_simple(t.cast(str, host), port, self, **options)
	  File "/usr/local/lib/python3.10/site-packages/werkzeug/serving.py", line 1010, in run_simple
	    inner()
	  File "/usr/local/lib/python3.10/site-packages/werkzeug/serving.py", line 950, in inner
	    srv = make_server(
	  File "/usr/local/lib/python3.10/site-packages/werkzeug/serving.py", line 782, in make_server
	    return ThreadedWSGIServer(
	  File "/usr/local/lib/python3.10/site-packages/werkzeug/serving.py", line 688, in __init__
	    super().__init__(server_address, handler)  # type: ignore
	  File "/usr/local/lib/python3.10/socketserver.py", line 452, in __init__
	    self.server_bind()
	  File "/usr/local/lib/python3.10/http/server.py", line 138, in server_bind
	    socketserver.TCPServer.server_bind(self)
	  File "/usr/local/lib/python3.10/socketserver.py", line 466, in server_bind
	    self.socket.bind(self.server_address)
	OSError: [Errno 98] Address already in use
# 仍然报老错误

分析原因:可能是dockerfile文件中已经执行了,再在容器中运行就会报该错误,因此,后续可先不用管此错误。

# 本地run是可以正常访问的
root@master:/home/hqc/docker_learning/plus-of-arrays# python array-plus.py 
	 * Serving Flask app 'array-plus' (lazy loading)
	 * Environment: production
	   WARNING: This is a development server. Do not use it in a production deployment.
	   Use a production WSGI server instead.
	 * Debug mode: off
	 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
	127.0.0.1 - - [10/Dec/2021 18:22:59] "GET / HTTP/1.1" 200 -

提出疑问:为啥docker运行成功仍然无法访问呢??????qswl

8 尝试解决8

telnet [本机IP] [端口号]查看端口是否连通

root@master:/home/hqc/docker_learning/plus-of-arrays# telnet 172.30.117.60 1122
	Trying 172.30.117.60...
	telnet: Unable to connect to remote host: Connection refused
# 未连通

# 进入容器中进行curl访问
root@master:/home/hqc/docker_learning/plus-of-arrays# docker exec -it da5a26fc0ace /bin/bash
root@da5a26fc0ace:/array-plus# curl 127.0.0.1:5000
	<!DOCTYPE html>
	<html lang="en">
	<head>
	    <meta charset="UTF-8">
	    <title>plus of array</title>
	</head>
	<body>
	list1 is :[1, 2, 3, 4, 5, 6]
	<br>
	list2 is :[2, 3, 4, 5, 6, 7]
	<br>
	<br>
	list1 plus list2 is : [3, 5, 7, 9, 11, 13]
	</body>
	</html>
# 可以正常访问

# 但是以本机IP+port,被拒绝连接
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run -d -p 1133:5000 array-plus:v2.4
	20443d540f107da71d115d1ab40eeebd7edd487869fd05ee569d0b369a6ec700
root@master:/home/hqc/docker_learning/plus-of-arrays# curl 172.30.117.60:1133
	curl: (7) Failed to connect to 172.30.117.60 port 1133: 拒绝连接

另一种:

# 直接不映射端口运行,也是可以正常访问的
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run array-plus:v2.4
	 * Serving Flask app 'array-plus' (lazy loading)
	 * Environment: production
	   WARNING: This is a development server. Do not use it in a production deployment.
	   Use a production WSGI server instead.
	 * Debug mode: off
	 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
	127.0.0.1 - - [11/Dec/2021 09:17:59] "GET / HTTP/1.1" 200 -

但要注意:须新开一个终端进行curl,之前的不能关闭,关闭的话该容器会立即停止运行。

因此,我有充分理由怀疑:只是端口映射网络通信的问题,程序是一切正常可以运行的。


00 第二次构建

总感觉是多了一个html文件而出的问题,还是简单点吧。。。

root@master:/home/hqc/docker_learning/plus-of-arrays# cd ..
root@master:/home/hqc/docker_learning# mkdir json_plus
root@master:/home/hqc/docker_learning# cd json_plus/
root@master:/home/hqc/docker_learning/json_plus# vim json-plus.py
	#!/usr/bin/env python
	# -*- coding: utf-8 -*-
	# @Time : 2021/12/11 下午5:40
	# @Author : hqc
	# @File : json-plus.py
	# @Software: PyCharm
	from flask import Flask,render_template,jsonify
	
	app = Flask(__name__)
	
	@app.route('/')
	def index():
	    list1 = [1,2,3,4,5,6]
	    list2 = [2,3,4,5,6,7]
	    list = [ list1[i]+list2[i] for i in range(min(len(list1),len(list2))) ]
	#   return render_template('plus.html',list = list,list1 = list1,list2 = list2)
	    return jsonify(list)
	
	if __name__ == '__main__':
	    app.run(debug=True,host='0.0.0.0')
# 改用 jsonify 省去html文件

root@master:/home/hqc/docker_learning/json_plus# vim Dockerfile
root@master:/home/hqc/docker_learning/json_plus# ls
	Dockerfile  json-plus.py
root@master:/home/hqc/docker_learning/json_plus# python json-plus.py 
	 * Serving Flask app 'json-plus' (lazy loading)
	 * Environment: production
	   WARNING: This is a development server. Do not use it in a production deployment.
	   Use a production WSGI server instead.
	 * Debug mode: off
	 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
	127.0.0.1 - - [11/Dec/2021 20:28:57] "GET / HTTP/1.1" 200 -

本地运行访问成功:
在这里插入图片描述

root@master:/home/hqc/docker_learning/json_plus# docker build -t json-plus:v1.0 .
Sending build context to Docker daemon  3.584kB
Step 1/7 : FROM python
 ---> f48ea80eae5a
Step 2/7 : RUN mkdir -p /json-plus     && pip install flask
 ---> Running in 6a082693653b
Collecting flask
  Downloading Flask-2.0.2-py3-none-any.whl (95 kB)
Collecting Werkzeug>=2.0
  Downloading Werkzeug-2.0.2-py3-none-any.whl (288 kB)
Collecting itsdangerous>=2.0
  Downloading itsdangerous-2.0.1-py3-none-any.whl (18 kB)
Collecting click>=7.1.2
  Downloading click-8.0.3-py3-none-any.whl (97 kB)
Collecting Jinja2>=3.0
  Downloading Jinja2-3.0.3-py3-none-any.whl (133 kB)
Collecting MarkupSafe>=2.0
  Downloading MarkupSafe-2.0.1-cp310-cp310-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl (30 kB)
Installing collected packages: MarkupSafe, Werkzeug, Jinja2, itsdangerous, click, flask
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
Successfully installed Jinja2-3.0.3 MarkupSafe-2.0.1 Werkzeug-2.0.2 click-8.0.3 flask-2.0.2 itsdangerous-2.0.1
WARNING: You are using pip version 21.2.4; however, version 21.3.1 is available.
You should consider upgrading via the '/usr/local/bin/python -m pip install --upgrade pip' command.
Removing intermediate container 6a082693653b
 ---> 732d2f5d4c0d
Step 3/7 : COPY json-plus.py /json-plus/
 ---> 82cb8d60ea90
Step 4/7 : WORKDIR /json-plus
 ---> Running in 39a187aa7828
Removing intermediate container 39a187aa7828
 ---> ee39664fcead
Step 5/7 : EXPOSE 5000
 ---> Running in ba016287ec11
Removing intermediate container ba016287ec11
 ---> 7e821ccd74ef
Step 6/7 : RUN /bin/bash -c 'echo init ok'
 ---> Running in 787bc3e0b328
init ok
Removing intermediate container 787bc3e0b328
 ---> 17f891c4ed0b
Step 7/7 : CMD ["python", "json-plus.py"]
 ---> Running in a6db9776c7ca
Removing intermediate container a6db9776c7ca
 ---> 7dc9d402b001
Successfully built 7dc9d402b001
Successfully tagged json-plus:v1.0
root@master:/home/hqc/docker_learning/json_plus# docker run json-plus:v1.0
 * Serving Flask app 'json-plus' (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: off
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
127.0.0.1 - - [11/Dec/2021 12:34:17] "GET / HTTP/1.1" 200 -

docker运行浏览器中还是不能访问???
但进入容器中还是可以访问的。

root@master:/home/hqc# docker ps
	CONTAINER ID   IMAGE            COMMAND                 CREATED              STATUS              PORTS      NAMES
	1dd28d8c2a61   json-plus:v1.0   "python json-plus.py"   About a minute ago   Up About a minute   5000/tcp   optimistic_elgamal
root@master:/home/hqc# docker exec -it 1dd28d8c2a61 /bin/bash
root@1dd28d8c2a61:/json-plus# curl http://127.0.0.1:5000/
	[3,5,7,9,11,13]

出现和第一次构建一毛一样的问题qswl
到底是哪出了问题呢?

01 解决(核心步骤)

对比之前的flask-hello-world的代码,发现有些不同!!!

# 修改python代码
root@master:/home/hqc/docker_learning/json_plus# vim json-plus.py 
	#!/usr/bin/env python
	# -*- coding: utf-8 -*-
	# @Time : 2021/12/11 下午5:40
	# @Author : hqc
	# @File : json-plus.py
	# @Software: PyCharm
	from flask import Flask,render_template,jsonify
	
	app = Flask(__name__)
	
	@app.route('/')
	def index():
	    list1 = [1,2,3,4,5,6]
	    list2 = [2,3,4,5,6,7]
	    list = [ list1[i]+list2[i] for i in range(min(len(list1),len(list2))) ]
	#   return render_template('plus.html',list = list,list1 = list1,list2 = list2)
	    return jsonify(list)
	
	if __name__ == '__main__':
	    app.run(debug=True,host='0.0.0.0')
# 修改了最后一行的debug和host,暂时不知道是哪个的作用

root@master:/home/hqc/docker_learning/json_plus# vim Dockerfile 
# 端口暴露保证为默认的5000

# 构建镜像
root@master:/home/hqc/docker_learning/json_plus# docker build -t json-plus:v1.2 .
	Sending build context to Docker daemon  3.584kB
	Step 1/7 : FROM python
	 ---> f48ea80eae5a
	Step 2/7 : RUN mkdir -p /json-plus     && pip install flask
	 ---> Using cache
	 ---> 732d2f5d4c0d
	Step 3/7 : COPY json-plus.py /json-plus/
	 ---> 0a25ade532eb
	Step 4/7 : WORKDIR /json-plus
	 ---> Running in 3417773df444
	Removing intermediate container 3417773df444
	 ---> b288adfd98d2
	Step 5/7 : EXPOSE 5000
	 ---> Running in c547cd285afe
	Removing intermediate container c547cd285afe
	 ---> 9f7fd3c34ec6
	Step 6/7 : RUN /bin/bash -c 'echo init ok'
	 ---> Running in 0281b502a454
	init ok
	Removing intermediate container 0281b502a454
	 ---> f4dd1c67120a
	Step 7/7 : CMD ["python", "json-plus.py"]
	 ---> Running in 2260960099db
	Removing intermediate container 2260960099db
	 ---> fab5150c7c5e
	Successfully built fab5150c7c5e
	Successfully tagged json-plus:v1.2

# 直接运行
root@master:/home/hqc/docker_learning/json_plus# docker run json-plus:v1.2
 * Serving Flask app 'json-plus' (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: on
 * Running on all addresses.
   WARNING: This is a development server. Do not use it in a production deployment.
 * Running on http://172.17.0.2:5000/ (Press CTRL+C to quit)
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 501-077-407
172.17.0.1 - - [11/Dec/2021 12:53:45] "GET / HTTP/1.1" 200 -
# 可通过http://172.17.0.2:5000/进行访问

# 映射端口后运行
^Croot@master:/home/hqc/docker_learning/json_plus# docker run -d -p 1000:5000 json-plus:v1.2
29a2a2bedd9a79ffdc9b0175d25afb2730f6b4ee9dad0a98d72e0c8d6c0d4e8a

在这里插入图片描述
成功!!!!
以此类推,前面的应该也是这个问题。后面再测试,回家。

02 顺便解决第一次构建的问题

也是同样的问题,以下是步骤:

root@master:/home/hqc/docker_learning/plus-of-arrays# vim array-plus.py 
	#!/usr/bin/env python
	# -*- coding: utf-8 -*-
	# @Time : 2021/12/10 上午10:14
	# @Author : hqc
	# @File : array-plus.py
	# @Software: PyCharm
	from flask import Flask,render_template
	
	app = Flask(__name__)
	
	@app.route('/')
	def index():
	    list1 = [1,2,3,4,5,6]
	    list2 = [2,3,4,5,6,7]
	    list = [ list1[i]+list2[i] for i in range(min(len(list1),len(list2))) ]
	    return render_template('plus.html',list = list,list1 = list1,list2 = list2)
	
	if __name__ == '__main__':
	    app.run(debug=True,host='0.0.0.0')
# 主要也是改了最后一行

# 创建
root@master:/home/hqc/docker_learning/plus-of-arrays# docker build -t array-plus:v2.5 .
	Sending build context to Docker daemon  5.632kB
	Step 1/8 : FROM python
	 ---> f48ea80eae5a
	Step 2/8 : RUN mkdir -p /array-plus     && mkdir -p /array-plus/templates     && pip install flask
	 ---> Using cache
	 ---> 1348fc1e170d
	Step 3/8 : COPY ./templates/plus.html /array-plus/templates
	 ---> Using cache
	 ---> 63a3d5c65ade
	Step 4/8 : COPY array-plus.py /array-plus/
	 ---> 40370d94dc7f
	Step 5/8 : WORKDIR /array-plus
	 ---> Running in 651c9e493a42
	Removing intermediate container 651c9e493a42
	 ---> 63e0109a8cb4
	Step 6/8 : EXPOSE 5000
	 ---> Running in 312f598ff4ca
	Removing intermediate container 312f598ff4ca
	 ---> fcdde5856054
	Step 7/8 : RUN /bin/bash -c 'echo init ok'
	 ---> Running in ae89c41bdda4
	init ok
	Removing intermediate container ae89c41bdda4
	 ---> 34d480284f2d
	Step 8/8 : CMD ["python", "array-plus.py"]
	 ---> Running in d6e1cfb713ea
	Removing intermediate container d6e1cfb713ea
	 ---> 7f4f56bbf3c8
	Successfully built 7f4f56bbf3c8
	Successfully tagged array-plus:v2.5

# 映射端口后运行
root@master:/home/hqc/docker_learning/plus-of-arrays# docker run -d -p 2000:5000 array-plus:v2.5
	891a8dcfe4f9aaca002b93733d0fe04dce338dbe2272c1406d8d916baf914c16

访问成功:
在这里插入图片描述

03 分析原因

通过寻找发现是host='0.0.0.0'的原因,和debug=True无关。
必须设置host='0.0.0.0',否则只能本地运行,无法通过外网访问。
参考的博客 讲的还比较清楚

04 一个疑问

疑问:master上运行了容器,在本机上可以正常访问,但在手机上却没法访问。

一时蒙蔽,忘了必须在同一个局域网下(同一网段)才可以访问。

第一步总结

整体上是对的,访问失败的原因主要是没有设置为可供外网访问,而不是端口映射的原因(因此,前面很多次尝试解决都是找错了方向),但那些过程也不是一无是处,正是在这些失败的过程中,对这玩意儿更加理解,一步步找到问题所在。

最关键的是01 解决(核心步骤)这步,真正解决了问题。

第二步:上传镜像到阿里云私有仓库

0 登录阿里云私有镜像仓库

root@master:/home/hqc/docker_learning/plus-of-arrays# docker login --username=errorhqc兮 registry.cn-beijing.aliyuncs.com
	Password: 
	WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
	Configure a credential helper to remove this warning. See
	https://docs.docker.com/engine/reference/commandline/login/#credentials-store
	
	Login Succeeded

1 给镜像打一个新的标签

关键不可少,否则会push不成功

root@master:/home/hqc/docker_learning/plus-of-arrays# docker tag 7f4f56bbf3c8 registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-array-plus:v2.5

注意也可通过直接在图形界面中创建

2 push到镜像仓库

root@master:/home/hqc/docker_learning/plus-of-arrays# docker push registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-array-plus:v2.5
	The push refers to repository [registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-array-plus]
	f06f6fb37ea8: Pushed 
	7395b20bb823: Pushed 
	bf080306b1d4: Pushed 
	42ce61e841fa: Mounted from hqc-k8s/ali-flask-hello-world 
	a9b125f164c3: Mounted from hqc-k8s/ali-flask-hello-world 
	e24045f8c247: Mounted from hqc-k8s/ali-flask-hello-world 
	b7b662b31e70: Mounted from hqc-k8s/ali-flask-hello-world 
	6f5234c0aacd: Mounted from hqc-k8s/ali-flask-hello-world 
	8a5844586fdb: Mounted from hqc-k8s/ali-flask-hello-world 
	a4aba4e59b40: Mounted from hqc-k8s/ali-flask-hello-world 
	5499f2905579: Mounted from hqc-k8s/ali-flask-hello-world 
	a36ba9e322f7: Mounted from hqc-k8s/ali-flask-hello-world 
	v2.5: digest: sha256:1dd85ae174eeedbaa5d370e625c6db439c4188634e58d648a6b5d30e28b9aa86 size: 2843
# push成功

3 查看

在这里插入图片描述push成功!

第三步:部署到k8s

0 将集群启动

# 关闭防火墙
root@master:/home/hqc/k8s_test/array-plus# ufw disable
	防火墙在系统启动时自动禁用

# 禁用分区
root@master:/home/hqc/k8s_test/array-plus# swapoff -a

# 查看状态
root@master:/home/hqc/k8s_test/array-plus# kubectl get nodes
	NAME     STATUS     ROLES    AGE   VERSION
	master   Ready      master   25d   v1.18.0
	node01   Ready      <none>   20d   v1.18.0

1 yaml文件创建deployment

尝试自动创建:报错

root@master:/home/hqc/k8s_test/array-plus# kubectl create deployment array-plus-deployment --image=registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-array-plus:v2.5  --dry-run -o yml > array-plus-deployment.ymal
	W1213 20:50:23.489941    1289 helpers.go:535] --dry-run is deprecated and can be replaced with --dry-run=client.
	error: unable to match a printer suitable for the output format "yml", allowed formats are: go-template,go-template-file,json,jsonpath,jsonpath-file,name,template,templatefile,yaml
# 自动创建的方法不对,启用

直接创建:

# 编写
root@master:/home/hqc/k8s_test/array-plus# vim array-plus-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: array-plus-deployment
  name: array-plus-deployment
spec:
  replicas: 2
  selector:
    matchLabels:
      app: array-plus-deployment
  strategy: {}
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: array-plus-deployment
    spec:
      containers:
      - image: registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-array-plus:v2.5
        name: ali-array-plus
        resources: {}
        ports:
        - containerPort: 5000
        imagePullPolicy: IfNotPresent
status: {}

# 创建
root@master:/home/hqc/k8s_test/array-plus# kubectl create -f array-plus-deployment.yaml 
deployment.apps/array-plus-deployment created
# 成功

2 yaml文件创建service

# 编写
root@master:/home/hqc/k8s_test/array-plus# vim array-plus-service.yaml

apiVersion: v1 # 注意此处不能和deployment一样为‘apps/v1’
kind: Service
metadata:
  name: array-plus-deployment
  labels:
    app: array-plus-deployment
spec:
  ports:
  - port: 80
    targetPort: 5000
    nodePort: 30000
    protocol: TCP
  selector:
    app: array-plus-deployment
  type: NodePort

# 创建
root@master:/home/hqc/k8s_test/array-plus# kubectl create -f array-plus-service.yaml 
	service/array-plus-deployment created
# 成功

3 查看

root@master:/home/hqc/k8s_test/array-plus# kubectl get all
	NAME                                         READY   STATUS         RESTARTS   AGE
	pod/array-plus-deployment-55657b7c55-wfjtx   0/1     ErrImagePull   0          6m33s
	pod/array-plus-deployment-55657b7c55-z8kx2   0/1     ErrImagePull   0          6m33s
	pod/helloworld-deployment-79cbf4dcbb-5x6b2   1/1     Running        1          12d
	pod/helloworld-deployment-79cbf4dcbb-n5sps   1/1     Running        1          12d
	pod/helloworld-deployment-79cbf4dcbb-sr8xf   1/1     Running        1          12d
	pod/helloworld-deployment-79cbf4dcbb-wfh5w   1/1     Terminating    0          12d
	pod/nginx-f89759699-ksgcb                    1/1     Running        2          13d
	
	NAME                            TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)        AGE
	service/array-plus-deployment   NodePort    10.102.249.251   <none>        80:30000/TCP   93s
	service/helloworld-deployment   NodePort    10.106.97.144    <none>        80:30002/TCP   13d
	service/kubernetes              ClusterIP   10.96.0.1        <none>        443/TCP        25d
	service/nginx                   NodePort    10.109.178.122   <none>        80:30650/TCP   13d
	
	NAME                                    READY   UP-TO-DATE   AVAILABLE   AGE
	deployment.apps/array-plus-deployment   0/2     2            0           6m33s
	deployment.apps/helloworld-deployment   3/3     3            3           12d
	deployment.apps/nginx                   1/1     1            1           13d
	
	NAME                                               DESIRED   CURRENT   READY   AGE
	replicaset.apps/array-plus-deployment-55657b7c55   2         2         0       6m33s
	replicaset.apps/helloworld-deployment-79cbf4dcbb   3         3         3       12d
	replicaset.apps/nginx-f89759699                    1         1         1       13d
# 发现并未成功

4 问题解决

结合之前的实践经验,问题应该出在节点上没法实时进行拉取,需要在各节点上事先拉取好才行。

# 登录镜像仓库
root@nodroot@node01:/hroot@nrootrootrorororoot@node01:/home/user# docker login --username=errorhqc兮 registry.cn-beijing.aliyuncs.com
	Password: 
	WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
	Configure a credential helper to remove this warning. See
	https://docs.docker.com/engine/reference/commandline/login/#credentials-store
	
	Login Succeeded

# node本地拉取镜像
root@node01:/home/user# docker pull registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-array-plus:v2.5
	v2.5: Pulling from hqc-k8s/ali-array-plus
	647acf3d48c2: Already exists 
	b02967ef0034: Already exists 
	e1ad2231829e: Already exists 
	5576ce26bf1d: Already exists 
	a66b7f31b095: Already exists 
	05189b5b2762: Already exists 
	af08e8fda0d6: Already exists 
	287d56f7527b: Already exists 
	dc0580965fb6: Already exists 
	1cb8e8d308bd: Pull complete 
	c68499244bc4: Pull complete 
	1dafd85198a4: Pull complete 
	Digest: sha256:1dd85ae174eeedbaa5d370e625c6db439c4188634e58d648a6b5d30e28b9aa86
	Status: Downloaded newer image for registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-array-plus:v2.5
	registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-array-plus:v2.5

# 查看镜像
root@node01:/home/user# docker images
	REPOSITORY                                                       TAG       IMAGE ID       CREATED         SIZE
	registry.cn-beijing.aliyuncs.com/hqc-k8s/ali-array-plus          v2.5      7f4f56bbf3c8   2 hours ago     928MB

master中再次查看:发现包括service全部正常

root@master:/home/hqc/k8s_test/array-plus# kubectl get all
	NAME                                         READY   STATUS        RESTARTS   AGE
	pod/array-plus-deployment-55657b7c55-wfjtx   1/1     Running       0          10m
	pod/array-plus-deployment-55657b7c55-z8kx2   1/1     Running       0          10m
	pod/helloworld-deployment-79cbf4dcbb-5x6b2   1/1     Running       1          12d
	pod/helloworld-deployment-79cbf4dcbb-n5sps   1/1     Running       1          12d
	pod/helloworld-deployment-79cbf4dcbb-sr8xf   1/1     Running       1          12d
	pod/helloworld-deployment-79cbf4dcbb-wfh5w   1/1     Terminating   0          12d
	pod/nginx-f89759699-ksgcb                    1/1     Running       2          13d
	
	NAME                            TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)        AGE
	service/array-plus-deployment   NodePort    10.102.249.251   <none>        80:30000/TCP   5m59s
	service/helloworld-deployment   NodePort    10.106.97.144    <none>        80:30002/TCP   13d
	service/kubernetes              ClusterIP   10.96.0.1        <none>        443/TCP        25d
	service/nginx                   NodePort    10.109.178.122   <none>        80:30650/TCP   13d
	
	NAME                                    READY   UP-TO-DATE   AVAILABLE   AGE
	deployment.apps/array-plus-deployment   2/2     2            2           10m
	deployment.apps/helloworld-deployment   3/3     3            3           12d
	deployment.apps/nginx                   1/1     1            1           13d
	
	NAME                                               DESIRED   CURRENT   READY   AGE
	replicaset.apps/array-plus-deployment-55657b7c55   2         2         2       10m
	replicaset.apps/helloworld-deployment-79cbf4dcbb   3         3         3       12d
	replicaset.apps/nginx-f89759699                    1         1         1       13d

注意:无需将deployment和service删除重建,直接查看即可

5 运行验证

  1. master IP + port访问成功
    在这里插入图片描述
  2. node IP + port访问成功在这里插入图片描述
  3. dashboard中查看running成功
    在这里插入图片描述

到此为止,完全成功!!!

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