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dockerfile構(gòu)建haproxy的詳細(xì)過程(構(gòu)建HAProxy的鏡像)

更新時(shí)間：2025年03月13日 09:44:29 作者：wssswsss

Dockerfile是一個(gè)用于構(gòu)建Docker鏡像的文本文件,包含了構(gòu)建鏡像所需的所有指令和說明,通過定義一系列命令和參數(shù),本文詳細(xì)介紹了如何使用Dockerfile一步步構(gòu)建HAProxy的鏡像,并指導(dǎo)如何創(chuàng)建和運(yùn)行容器,實(shí)現(xiàn)負(fù)載均衡服務(wù),感興趣的朋友一起看看吧

什么是 Dockerfile？

Dockerfile 是一個(gè)文本文件，包含了構(gòu)建 Docker 鏡像的所有指令。

Dockerfile 是一個(gè)用來(lái)構(gòu)建鏡像的文本文件，文本內(nèi)容包含了一條條構(gòu)建鏡像所需的指令和說明。

通過定義一系列命令和參數(shù)，Dockerfile 指導(dǎo) Docker 構(gòu)建一個(gè)自定義的鏡像。

1. 結(jié)構(gòu)目錄

[root@localhost ~]# tree haproxy/
haproxy/
├── dockerfile
└── files
    ├── haproxy-2.5.0.tar.gz
    ├── haproxy.cfg
    ├── install.sh
    └── start.sh
1 directory, 5 files
[root@localhost ~]#

[root@localhost ~]# cd haproxy/
[root@localhost haproxy]# ls
dockerfile  files
[root@localhost haproxy]# cat dockerfile 
FROM centos
LABEL MAINTAINER='pengyudong 1@2.com@qq.com'
ENV version 2.5.0
ADD files/haproxy-${version}.tar.gz /usr/src
ADD files/haproxy.cfg /etc/haproxy/
ADD files/install.sh /tmp/
ADD files/start.sh /usr/local/
RUN ["/bin/bash","-c","/tmp/install.sh"]
EXPOSE 80 8189
WORKDIR /usr/local/haproxy
CMD ["/usr/local/start.sh"]
[root@localhost haproxy]# 
[root@localhost haproxy]# cd files/
[root@localhost files]# ls
haproxy-2.5.0.tar.gz  haproxy.cfg  install.sh  start.sh
[root@localhost files]# vim start.sh 
[root@localhost files]# cat start.sh 
#!/bin/sh
/usr/local/haproxy/sbin/haproxy -f /etc/haproxy/haproxy.cfg
/bin/bash
[root@localhost files]# cat install.sh 
#!/bin/bash 
rm -rf /etc/yum.repos.d/* 
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-$(awk -F'"' 'NR==2{print $2}' /etc/os-release).repo 
yum -y install make gcc gcc-c++ pcre-devel bzip2-devel openssl-devel systemd-devel 
useradd -r -M -s /sbin/nologin haproxy 
cd /usr/src/haproxy-${version} 
cd /usr/src/haproxy-${version} && make clean && \
make -j $(nproc) TARGET=linux-glibc USE_OPENSSL=1 USE_PCRE=1 USE_SYSTEMD=1 && \
make install PREFIX=/usr/local/haproxy && \
yum -y remove make gcc gcc-c++ && \
rm -rf /usr/src/haproxy-*
[root@localhost files]# cat haproxy.cfg 
#--------------全局配置----------------
global
    log 127.0.0.1 local0  info
    #log loghost local0 info
    maxconn 20480
#chroot /usr/local/haproxy
    pidfile /var/run/haproxy.pid
    #maxconn 4000
    user haproxy
    group haproxy
    daemon
#---------------------------------------------------------------------
#common defaults that all the 'listen' and 'backend' sections will
#use if not designated in their block
#---------------------------------------------------------------------
defaults
    mode http
    log global
    option dontlognull
    option httpclose
    option httplog
    #option forwardfor
    option redispatch
    balance roundrobin
    timeout connect 10s
    timeout client 10s
    timeout server 10s
    timeout check 10s
    maxconn 60000
    retries 3
#--------------統(tǒng)計(jì)頁(yè)面配置------------------
listen admin_stats
    bind 0.0.0.0:8189
    stats enable
    mode http
    log global
    stats uri /haproxy_stats
    stats realm Haproxy\ Statistics
    stats auth admin:admin
    #stats hide-version
    stats admin if TRUE
    stats refresh 30s
#---------------web設(shè)置-----------------------
listen webcluster
    bind 0.0.0.0:80
    mode http
    #option httpchk GET /index.html
    log global
    maxconn 3000
    balance roundrobin
    cookie SESSION_COOKIE insert indirect nocache
    server web01 172.17.0.3:80 check inter 2000 fall 5
    server web02 172.17.0.4:80 check inter 2000 fall 5
[root@localhost files]#

2. 構(gòu)建鏡像

[root@localhost ~]# docker build -t pengyudong/haproxy:v1.0 haproxy/
root@localhost ~]# docker images
pengyudong/haproxy   v1.0      8819e319cf32   19 minutes ago   418MB
[root@localhost ~]#

3. 創(chuàng)建容器

[root@localhost ~]# docker run -itd --name haproxy -p 8080:80 haproxy:v1.0
[root@localhost ~]# docker exec -it haproxy /bin/bash
[root@ce02ae7f027e haproxy]# ss -antl
State       Recv-Q      Send-Q           Local Address:Port            Peer Address:Port      Process      
LISTEN      0           128                    0.0.0.0:80                   0.0.0.0:*                      
LISTEN      0           128                    0.0.0.0:8189                 0.0.0.0:*                      
[root@ce02ae7f027e haproxy]# 
[root@localhost ~]# docker run -itd --name httpd pengyudong/httpd
462bd9babdcdac7f2abbb6da551858466659602bb3031129bb5b5de6e71853eb
[root@localhost ~]#  docker run -itd --name nginx nginx
0dffef28f17692db84e93c7caece9fbfe303d66b042bc1f40f13e0304c09227f
[root@localhost ~]# docker ps 
CONTAINER ID   IMAGE                     COMMAND                  CREATED          STATUS          PORTS                                             NAMES
0dffef28f176   nginx                     "/docker-entrypoint.…"   8 minutes ago    Up 8 minutes    80/tcp                                            nginx
462bd9babdcd   pengyudong/httpd          "/usr/local/apache/b…"   8 minutes ago    Up 8 minutes    80/tcp                                            httpd
ce02ae7f027e   pengyudong/haproxy:v1.0   "/usr/bin/start.sh"      22 minutes ago   Up 22 minutes   8189/tcp, 0.0.0.0:8080->80/tcp, :::8080->80/tcp   haproxy
[root@localhost ~]#

到此這篇關(guān)于dockerfile構(gòu)建haproxy的詳細(xì)過程(構(gòu)建HAProxy的鏡像)的文章就介紹到這了,更多相關(guān)dockerfile構(gòu)建haproxy內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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