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云計(jì)算-容器云-基于docker-compose+Django編排部署博客系統(tǒng)

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基于docker-compose+Django编排部署博客系统

DjangoBlog应用系统部署

一、环境准备

[root@k8s-master-node1 ~]# tar -zxvf DjangoBlog.tar.gz
[root@k8s-master-node1 ~]# cd DjangoBlog/
[root@k8s-master-node1 DjangoBlog]# docker load -i CentOS_7.9.2009.tar
Loaded image: centos:centos7.9.2009
[root@k8s-master-node1 DjangoBlog]# vim local.repo
[yum]
name=yum
baseurl=file:///root/yum
gpgcheck=0
enabled=1

二、容器化Memcached服务

在master节点/root/DjangoBlog目录下编写Dockerfile-memcached文件构建blog-memcached:v1.0镜像,具体要求如下:

(1)基础镜像:centos:7.9.2009;

(2)完成memcached服务的安装;

(3)声明端口:11211;

(4)设置服务开机自启。

完成后构建镜像,并提交master节点的用户名、密码和IP地址到答题框。

[root@k8s-master-node1 DjangoBlog]# vim Dockerfile-memcached
FROM centos:centos7.9.2009

RUN rm -rf /etc/yum.repos.d/*
ADD local.repo /etc/yum.repos.d/
ADD yum /root/yum
RUN yum install memcached libevent libevent-devel -y

EXPOSE 11211
ENTRYPOINT /usr/bin/memcached -u root
[root@k8s-master-node1 DjangoBlog]# docker build -t blog-memcached:v1.0 -f Dockerfile-memcached .

三、容器化Mariadb服务

在master节点/root/DjangoBlog目录下编写Dockerfile-mariadb文件构建blog-mysql:v1.0镜像,具体要求如下:

(1)基础镜像:centos:7.9.2009;

(2)安装MariaDB服务并设置root用户的密码为root;

(3)创建数据库djangoblog并将sqlfile.sql导入该数据库;

(4)声明端口:3306;

(5)设置服务开机自启。

完成后构建镜像,并提交master节点的用户名、密码和IP地址到答题框。
(1)编写Dockerfile
编写数据库初始化脚本:

[root@master DjangoBlog]# vi mysql_init.sh 
#!/bin/bash
mysql_install_db --user=root
mysqld_safe --user=root &
sleep 8
mysqladmin -u root password 'root'
mysql -uroot -proot -e "grant all on *.* to 'root'@'%' identified by 'root';flush privileges;"
mysql -uroot -proot -e "create database djangoblog;use djangoblog;source /opt/sqlfile.sql;"

##编写Dockerfile文件:

[root@master DjangoBlog]# vi Dockerfile-mariadb 
FROM centos:centos7.9.2009
MAINTAINER Chinaskills
RUN rm -rf /etc/yum.repos.d/*
COPY local.repo /etc/yum.repos.d/
COPY yum /root/yum
ENV LC_ALL en_US.UTF-8
RUN yum -y install mariadb-server
COPY mysql_init.sh /opt/
COPY sqlfile.sql /opt
RUN bash /opt/mysql_init.sh
EXPOSE 3306
CMD ["mysqld_safe","--user=root"]
[root@k8s-master-node1 DjangoBlog]# docker build -t blog-mysql:v1.0 -f Dockerfile-mariadb .

四、容器化前端服务

在master节点/root/DjangoBlog目录下编写Dockerfile-nginx文件构建blog-nginx:v1.0镜像,具体要求如下:

(1)基础镜像:centos:7.9.2009;

(2)安装nginx服务;

(3)使用提供的nginx.conf作为默认的配置文件;

(3)声明端口:80;

(4)设置服务开机自启。

完成后构建镜像,并提交master节点的用户名、密码和IP地址到答题框。

[root@k8s-master-node1 DjangoBlog]# vim Dockerfile-nginx
FROM centos:centos7.9.2009
MAINTAINER Chinaskills
RUN rm -rf /etc/yum.repos.d/*
COPY local.repo /etc/yum.repos.d/
COPY yum /root/yum
RUN yum -y install nginx
ADD nginx.conf /etc/nginx/nginx.conf
RUN /bin/bash -c 'echo init ok'
EXPOSE 80
CMD ["nginx","-g","daemon off;"]
[root@k8s-master-node1 DjangoBlog]# docker build -t blog-nginx:v1.0 -f Dockerfile-nginx .

五、容器化Blog服务

在master节点/root/DjangoBlog目录下编写Dockerfile-blog文件构建blog-service:v1.0镜像,具体要求如下:

(1)基础镜像:centos:7.9.2009;

(2)安装Python3.6环境;

(3)使用pip3工具离线安装requirements.txt中的软件包;

(4)安装DjangoBlog服务;

(5)声明端口:8000;

(6)设置DjangoBlog服务开机自启。

完成后构建镜像,并提交master节点的用户名、密码和IP地址到答题框

[root@k8s-master-node1 DjangoBlog]# vim Dockerfile-blog
FROM centos:centos7.9.2009

RUN rm -rf /etc/yum.repos.d/*
COPY local.repo /etc/yum.repos.d/
COPY yum /root/yum
RUN yum install -y `yum list all|grep devel |grep -i -v mariadb |awk '{print $1}'` gcc make zlib*

ADD Python-3.6.5.tgz /usr/local/
RUN cd /usr/local/Python-3.6.5 && ./configure && make && make install
RUN ln -s /usr/local/python3/bin/python3 /usr/bin/python3
RUN ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
ADD requirements.txt requirements.txt
COPY Python-pip /opt
RUN pip3 install --upgrade pip --no-index --find-links=/opt
RUN pip3 install -r requirements.txt --no-index --find-links=/opt
RUN pip3 install gunicorn[gevent] --no-index --find-links=/opt
RUN pip3 cache purge

RUN mkdir -p /code/djangoBlog
ADD . /code/djangoBlog
RUN chmod +x /code/djangoBlog/bin/docker_start.sh

EXPOSE 8000
ENTRYPOINT ["/code/djangoBlog/bin/docker_start.sh"]
[root@k8s-master-node1 DjangoBlog]# docker build -t blog-service:v1.0 -f Dockerfile-blog .

六、编排部署博客系统

在master节点/root/DjangoBlog目录下编写docker-compose.yaml文件,具体要求如下:

(1)容器1名称:blog-memcached;镜像:blog-memcached:v1.0;端口映射:11211:11211;

(2)容器2名称:blog-mysql;镜像:blog-mysql:v1.0;端口映射:3306:3306;

(3)容器3名称:blog-nginx;镜像:blog-nginx:v1.0;端口映射:80:8888;

(4)容器4名称:blog-service;镜像:blog-service:v1.0;端口映射:8000:8000。

完成后编排部署该博客系统,并提交master节点的用户名、密码和IP地址到答题框。

[root@k8s-master-node1 DjangoBlog]# vim docker-compose.yaml
version: '3'
services:
  memcached:
    container_name: blog-memcached
    image: blog-memcached:v1.0
    restart: always
    ports:
    - "11211:11211"
  db:
    container_name: blog-mysql
    image: blog-mysql:v1.0
    restart: always
    ports:
    - 3306:3306
    environment:
    - MYSQL_DATABASE=djangoblog
    - MYSQL_ROOT_PASSWORD=root
    depends_on:
    - memcached
  djangoblog:
    container_name: blog-service
    image: blog-service:v1.0
    restart: always
    ports:
    - "8000:8000"
    environment:
    - DJANGO_MYSQL_DATABASE=djangoblog
    - DJANGO_MYSQL_USER=root
    - DJANGO_MYSQL_PASSWORD=root
    - DJANGO_MYSQL_HOST=db
    - DJANGO_MYSQL_PORT=3306
    - DJANGO_MEMCACHED_LOCATION=memcached:11211
    volumes:
    - ./collectedstatic:/code/djangoBlog/collectedstatic
    links:
    - db
    - memcached
    depends_on:
    - db
  nginx:
    container_name: blog-nginx
    image: blog-nginx:v1.0
    restart: always
    ports:
    - "8888:80"
    - "443:443"
    links:
    - djangoblog:djangoblog
    volumes:
    - ./collectedstatic:/code/djangoBlog/collectedstatic

[root@k8s-master-node1 DjangoBlog]# docker-compose up -d
[+] Running 5/5
 ⠿ Network djangoblog_default  Created				0.1s
 ⠿ Container blog-memcached    Started				0.8s
 ⠿ Container blog-mysql        Started				1.9s
 ⠿ Container blog-service      Started				3.1s
 ⠿ Container blog-nginx        Started				5.2s

[root@k8s-master-node1 DjangoBlog]# docker-compose ps
NAME                COMMAND                  SERVICE             STATUS              PORTS
blog-memcached      "/bin/sh -c '/usr/bi…"   blog-memcached      running             0.0.0.0:11211->11211/tcp, :::11211->11211/tcp
blog-mysql          "mysqld_safe --user=…"   blog-mysql          running             0.0.0.0:3306->3306/tcp, :::3306->3306/tcp
blog-nginx          "nginx -g 'daemon of…"   blog-nginx          running             0.0.0.0:8888->80/tcp, 0.0.0.0:443->443/tcp, :::8888->80/tcp, :::443->443/tcp
blog-service        "/code/djangoBlog/bi…"   blog-service        running             0.0.0.0:8000->8000/tcp, :::8000->8000/tcp

浏览器访问http:ip:8000,登录系统(admin/123456),如图所示:

点击“管理站点”,如图所示:

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