使用supervisor管理nginx+tomcat容器的方法示例

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需求：

使用docker来启动nginx + tomcat 双进程，实际应用中，多进程还是比较常见的。

1: 创建dockerfile目录

mkdir -p /docker/web

2: 编写dockerfile: /docker/web/Dockerfile

FROM centos7

MAINTAINER lin test@163.com

COPY CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo

COPY nginx_install.sh /tmp/nginx_install.sh

RUN sh /tmp/nginx_install.sh; \rm -rf /usr/local/src/*

RUN sed -i -e '/worker_processes/a daemon off;' /usr/local/nginx/conf/nginx.conf;

 

COPY jdk-8u162-linux-x64.tar.gz /usr/local/src/jdk-8u162-linux-x64.tar.gz

COPY tomcat_install.sh /tmp/tomcat_install.sh

RUN sh /tmp/tomcat_install.sh; \rm -rf /usr/local/src/*

 

COPY supervisor_install.sh /tmp/supervisor_install.sh

COPY supervisord.conf /etc/supervisord.conf

COPY start_tomcat.sh /usr/local/tomcat/bin/mystart.sh

RUN sh /tmp/supervisor_install.sh; \rm -rf /tmp/*.sh

3: dockerfile集成的配置文件及安装文件

3.1 默认源下载较慢，更换yum源，以下CentOS-Base.repo配置文件拷贝到容器里更换

COPY CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo

[root@docker web]# cat CentOS-Base.repo 

[base]

name=CentOS-$releasever - Base

baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

 

#released updates

[updates]

name=CentOS-$releasever - Updates

baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

 

#additional packages that may be useful

[extras]

name=CentOS-$releasever - Extras

baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

 

#additional packages that extend functionality of existing packages

[centosplus]

name=CentOS-$releasever - Plus

baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/

gpgcheck=1

enabled=0

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

3.2nginx安装脚本

[root@docker web]# cat nginx_install.sh 

yum install -y wget tar gcc gcc-c++ make pcre pcre-devel zlib zlib-devel openssl openssl-devel

 

cd /usr/local/src

wget 'http://nginx.org/download/nginx-1.12.2.tar.gz'

tar -zxvf nginx-1.12.2.tar.gz

cd nginx-1.12.2

./configure --prefix=/usr/local/nginx --with-http_ssl_module --with-stream --with-stream_ssl_module

make

make install

exit 0

3.3tomcat安装脚本

[root@docker web]# cat tomcat_install.sh 

yum install -y wget tar

cd /usr/local/src/

tar -zxvf jdk-8u162-linux-x64.tar.gz

mv jdk1.8.0_162 /usr/local/

#/usr/local/jdk1.8.0_162/bin/java -version

 

#配置java环境变量

echo 'JAVA_HOME=/usr/local/jdk1.8.0_162/' /etc/profile

echo 'PATH=$PATH:$JAVA_HOME/bin' /etc/profile

echo 'CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:$CLASSPATH' /etc/profile

source /etc/profile

 

wget https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.5.38/bin/apache-tomcat-8.5.38.tar.gz

tar -zxvf apache-tomcat-8.5.38.tar.gz

mv apache-tomcat-8.5.38 /usr/local/tomcat

3.4dockerfile文件中涉及到的配置文件、脚本、安装包如下

[root@docker web]# ll

total 185384

-rw-r--r-- 1 root root 835 Mar 9 01:12 CentOS-Base.repo

-rw-r--r-- 1 root root 669 Mar 9 01:11 Dockerfile

-rw-r--r-- 1 root root 189815615 Mar 9 01:15 jdk-8u162-linux-x64.tar.gz

-rw-r--r-- 1 root root 340 Mar 9 01:13 nginx_install.sh

-rw-r--r-- 1 root root 581 Mar 9 01:17 tomcat_install.sh

4: 一键安装supervisor: /docker/web/supervisor_install.sh

yum -y install epel-release
yum -y install python2-pip
pip install supervisor

5: supervisor配置文件: /docker/web/supervisord.conf

[unix_http_server]

file=/tmp/supervisor.sock ; the path to the socket file

 

[supervisord]

logfile=/tmp/supervisord.log ; 日志

logfile_maxbytes=50MB ; 最大50M日志

logfile_backups=10 ; 轮循日志备份10个

loglevel=info ; 日志等级记录info的

pidfile=/tmp/supervisord.pid ;pid

nodaemon=true ;在前台启动

minfds=102400 ; 文件描述符限制

minprocs=2000 ; 进程数

 

[rpcinterface:supervisor]

supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

 

[supervisorctl]

serverurl=unix:///tmp/supervisor.sock ; use a unix:// URL for a unix socket

 

[program:nginx]

command=/usr/local/nginx/sbin/nginx ; 前台启动nginx

autostart=true ; 随着supervisor自动启动

startsecs=10 ; 启动10s后算正常启动

autorestart=true ; 程序退出后自动重启

startretries=3 ; 启动失败自动重试次数

stdout_logfile_maxbytes=20MB ;stdout 日志文件大小最大20Mb

stdout_logfile=/usr/local/nginx/logs/out.log

 

[program:tomcat]

command=sh /usr/local/tomcat/bin/mystart.sh ; 前台启动tomcat

autostart=true ; 随着supervisor自动启动

startsecs=10 ; 启动10s后算正常启动

autorestart=true ; 程序退出后自动重启

startretries=3 ; 启动失败自动重试次数

stdout_logfile_maxbytes=20MB ;stdout 日志文件大小最大20Mb

stdout_logfile=/usr/local/tomcat/logs/catalina.out

6: tomcat的启动脚本/docker/web/start_tomcat.sh

#由于supervisor无法使用source，需要编写个脚本来启动

source /etc/profile

/usr/local/tomcat/bin/catalina.sh run

7: 构建镜像

cd /docker/web
docker build -t shijiange_web .

[root@docker web]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
shijiange_web latest bc06a9974252 7 seconds ago 1.33 GB

8: 启动容器测试

[root@docker web]# docker run -d shijiange_web /bin/bash -c 'supervisord -c /etc/supervisord.conf'

76782ab71c3b1d2f818ad76214d6336ae11a524eeb9d211f154fe4ad5226015d

[root@docker web]# 

[root@docker web]# docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

76782ab71c3b shijiange_web "container-entrypo..." 12 seconds ago Up 12 seconds happy_jones

9.测试验证：

[root@docker web]# docker exec -it 76782ab /bin/bash
bash-4.2# ifconfig

10.容器验证：curl nginx

11.容器验证：curl tomcat

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

supervisor管理nginx+tomcat容器,supervisor,nginx,tomcat

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