Dockerfile制作haproxy镜像

Dockerfile制作haproxy镜像 Dockerfile制作haproxy镜像 结构目录

[root@localhost ~]# tree haproxy/
haproxy/
├── Dockerfile
└── files
    ├── haproxy-2.4.0.tar.gz
    ├── haproxy.cfg
    ├── install.sh
    ├── run_haproxy.sh
    └── sysctl.conf

1 directory, 6 files
[root@localhost ~]# 

Dockerfile文件内容

[root@localhost ~]# cd haproxy
[root@localhost haproxy]# cat Dockerfile 
FROM centos

ENV version 2.4.0
WORKDIR /usr/local
ADD files/haproxy${version}.tar.gz /usr/local/
ADD files/haproxy.sh /usr/local
ADD files/haproxy.cfg /etc/haproxy/
ADD files/run_haproxy.sh /usr/local
ADD files/sysctl.conf /etc/
RUN ["/bin/bash","-c","/usr/local/haproxy.sh"]

EXPOSE 80
CMD ["/usr/local/run_haproxy.sh"]

查看结构目录内容

[root@localhost ~]# cd haproxy/files/
[root@localhost files]# ls
haproxy-2.4.0.tar.gz  install.sh      sysctl.conf
haproxy.cfg           run_haproxy.sh
[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-$(awk -F'"' 'NR==2{print }' /etc/os-release).repo 
yum -y install make gcc pcre-devel bzip2-devel openssl-devel systemd-devel 
useradd -r -M -s /sbin/nologin haproxy 
cd /usr/src/haproxy-${version} 
make clean && 
make -j $(grep 'processor' /proc/cpuinfo |wc -l)  
TARGET=linux-glibc  
USE_OPENSSL=1  
USE_ZLIB=1  
USE_PCRE=1  
USE_SYSTEMD=1  
make install PREFIX=/usr/local/haproxy && 
cp haproxy  /usr/sbin/  && 
yum -y remove make gcc gcc-c++ && 
rm -rf /usr/src/haproxy-2.4.0
[root@localhost files]# 

[root@localhost files]# ls
haproxy-2.4.0.tar.gz  install.sh      sysctl.conf
haproxy.cfg           run_haproxy.sh
[root@localhost files]# cat sysctl.conf 
# sysctl settings are defined through files in
# /usr/lib/sysctl.d/, /run/sysctl.d/, and /etc/sysctl.d/.
#
# Vendors settings live in /usr/lib/sysctl.d/.
# To override a whole file, create a new file with the same in
# /etc/sysctl.d/ and put new settings there. To override
# only specific settings, add a file with a lexically later
# name in /etc/sysctl.d/ and put new settings there.
#
# For more information, see sysctl.conf(5) and sysctl.d(5).
net.ipv4.ip_nonlocal_bind = 1
net.ipv4.ip_forward = 1
[root@localhost files]# 

[root@localhost files]# ls
haproxy-2.4.0.tar.gz  install.sh      sysctl.conf
haproxy.cfg           run_haproxy.sh
[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
#--------------统计页面配置------------------
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设置-----------------------
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
    #server web01 192.168.80.102:80 cookie web01 check inter 2000 fall 5
[root@localhost files]# 

[root@localhost files]# cat run_haproxy.sh 
#!/bin/sh

haproxy -f /etc/haproxy/haproxy.cfg

/bin/bash
[root@localhost files]# 

制作haproxy镜像

[root@localhost haproxy]# docker build -t haproxy:v0.1 .
[root@localhost haproxy]# docker images
REPOSITORY         TAG       IMAGE ID       CREATED         SIZE
haproxy            v0.1      833130f07d74   4 seconds ago   578MB
1225514226/httpd   v0.4      37f8ea813545   47 hours ago    702MB
1225514226/httpd   v0.2      026478daf0c7   3 days ago      702MB
1225514226/nginx   v0.1      c98f0d7db627   6 days ago      579MB
busybox            latest    d23834f29b38   10 days ago     1.24MB
centos             latest    5d0da3dc9764   2 months ago    231MB
[root@localhost haproxy]# 

运行haproxy容器并映射端口

[root@localhost haproxy]# docker run -itd --name haproxy -p 1111:80 833130f07d74
03df66f57ac99f21891c5c14e992bed7e68da2869611a86e089c4b95dd794053
[root@localhost haproxy]# docker ps -a 
ConTAINER ID   IMAGE          COMMAND                  CREATED         STATUS         PORTS                                   NAMES
03df66f57ac9   833130f07d74   "/usr/local/run_hapr…"   4 seconds ago   Up 3 seconds   0.0.0.0:1111->80/tcp, :::1111->80/tcp   haproxy
[root@localhost haproxy]# 

[root@localhost haproxy]# docker exec -it haproxy /bin/bash
[root@03df66f57ac9 local]# 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@03df66f57ac9 local]# 

运行一个httpd镜像和nginx镜像

[root@localhost ~]# docker run -d --name httpd 1225514226/httpd:v0.4
636b41c7296b518a13b23b18b03a82887e2fa355b69e0a442e70a85f98d158b7
[root@localhost ~]# docker run -d --name nginx 1225514226/nginx:v0.1
199524481ed4e279bc2cc605b305be71bb7828ce4568efcaace59e149c8248ac
[root@localhost ~]# docker ps -a 
ConTAINER ID   IMAGE          COMMAND                  CREATED              STATUS                          PORTS                                   NAMES
199524481ed4   c98f0d7db627   "bin/bash start.sh"      about a minute ago   Exited (0) about a minute ago                                           nginx
636b41c7296b   37f8ea813545   "/usr/local/apache/b…"   about a minute ago   Up about a minute               80/tcp, 443/tcp                         httpd
03df66f57ac9   833130f07d74   "/usr/local/run_hapr…"   6 minutes ago        Up 6 minutes                    0.0.0.0:1111->80/tcp, :::1111->80/tcp   haproxy
[root@localhost ~]# 

访问测试