Dockerfile基于alpine构建haproxy

• 编写Dockerfile
• 配置文件
• • haproxycfg.sh 配置文件脚本
  • install.sh 安装脚本
• 指定RS IP的文件
• 构建镜像
• 创建容器
• 访问 测试

FROM alpine

LABEL MAINTAINER="wjm 1@2.com"

ENV version 2.5.0
ENV PATH /usr/local/haproxy/sbin:$PATH

ADD files/haproxy-${version}.tar.gz /tmp/
ADD files/install.sh /tmp/
ADD files/haproxycfg.sh /tmp/


RUN /tmp/install.sh
ENTRYPOINT /tmp/haproxycfg.sh

[root@localhost haproxy]# cd files/
[root@localhost files]# ls
haproxy-2.5.0.tar.gz  haproxycfg.sh  install.sh  sysctl.conf
[root@localhost files]# cat haproxycfg.sh 
#!/bin/sh
cat > /etc/haproxy/haproxy.cfg <> /etc/haproxy/haproxy.cfg < 
install.sh 安装脚本 
[root@localhost files]# cat install.sh 
#!/bin/sh
sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/' /etc/apk/repositories
apk update
adduser -S -H -s /sbin/nologin haproxy
addgroup haproxy
apk add --no-cache -U make gcc pcre-dev bzip2-dev openssl-dev elogind-dev libc-dev dahdi-tools dahdi-tools-dev libexecinfo libexecinfo-dev ncurses-dev zlib-dev zlib

cd /tmp/haproxy-2.5.0
make TARGET=linux-musl USE_OPENSSL=1 USE_ZLIB=1 USE_PCRE=1 
make install PREFIX=/usr/local/haproxy
echo 'net.ipv4.ip_nonlocal_bind = 1' >>  /etc/sysctl.conf 
echo 'net.ipv4.ip_forward = 1' >> /etc/sysctl.conf
cp haproxy  /usr/sbin/
mkdir /etc/haproxy
apk del gcc make
rm -rf /tmp/haproxy-2.5.0/ /tmp/install.sh
 
指定RS IP的文件 
[root@localhost haproxy]# cat RSs.txt 
172.17.0.3
172.17.0.4
172.17.0.5
 
构建镜像 
[root@localhost ~]# docker build -t haproxy:v4.0 haproxy/
[root@localhost ~]# docker images
REPOSITORY           TAG       IMAGE ID       CREATED             SIZE
haproxy              v4.0      62b77794bfbc   about an hour ago   23MB

 
创建容器 
[root@localhost ~]# docker run -d --name apache httpd
7ab5c3bf0cfb2a0a6b4887264a33c5a981c8c58e61d14f928becfc5451dd54a9
[root@localhost ~]# docker run -d --name nginx nginx
204f91f1ad5602eb0425a568aa7df17d59c7be064600d3984c6262d2bd14f2bd
[root@localhost ~]# docker run -d --name haproxy-1 -p 80:80 -p 8189:8189 -v /root/haproxy/RSs.txt :/tmp  haproxy:v4.0
b3d081e8dee7e99d0eb4bd517114445002c0be8819cffe036b02fb6dd5871de8
[root@localhost ~]# 
[root@localhost ~]# docker ps
ConTAINER ID   IMAGE     COMMAND                  CREATED              STATUS              PORTS     NAMES
b3d081e8dee7    haproxy:v4.0          "/bin/sh -c /tmp/hap…"   3 minutes ago    Up 5 minutes    0.0.0.0:80->80/tcp, :::80->80/tcp   haproxy-1
204f91f1ad56   nginx     "/docker-entrypoint.…"   about a minute ago   Up about a minute   80/tcp    nginx
7ab5c3bf0cfb   httpd     "httpd-foreground"       about a minute ago   Up about a minute   80/tcp    apache

 
访问 测试