基于Alpine 编写Haproxy的Dockerfile
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Dockerfile部署Haproxy
基于Centos编写Haproxy的Dockerfile
//创建dockerfile文件目录以及脚本文件
[root@localhost ~]# mkdir -p haproxy/files
[root@localhost ~]# ls haproxy/
files
[root@localhost ~]# touch haproxy/Dockerfile
[root@localhost ~]# touch haproxy/files/install.sh
[root@localhost ~]# touch haproxy/entrypoint.sh
//项目结构
[root@localhost ~]# tree haproxy/
haproxy/
|-- Dockerfile
|-- entrypoint.sh
`-- files
|-- haproxy-2.4.0.tar.gz
`-- install.sh
1 directory, 4 files
//添加脚本权限
[root@localhost ~]# chmod +x haproxy/entrypoint.sh
[root@localhost ~]# chmod +x haproxy/files/install.sh
[root@localhost ~]# ls -l haproxy/entrypoint.sh
-rwxr-xr-x. 1 root root 1624 Dec 12 18:21 haproxy/entrypoint.sh
[root@localhost ~]# ls -l haproxy/files/install.sh
-rwxr-xr-x. 1 root root 1032 Dec 12 18:16 haproxy/files/install.sh
//结构（在根目录下）
[root@localhost /]# tree haproxy_config/
haproxy_config/
`-- RSs.txt
0 directories, 1 file
[root@localhost /]# cat haproxy_config/RSs.txt
172.17.0.3
172.17.0.4
172.17.0.5
172.17.0.6
//创建两台装容器（一台httpd，一台nginx，用来测试）
[root@localhost ~]# docker run --name web1 -d httpd
e84f1c748e99d47bbf856a5403ec1cb3bb301e6a98daaa0d1e32f786699823a1
[root@localhost ~]# docker inspect web05
"Gateway": "172.17.0.2",
"IPAddress": "172.17.0.3",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:05",
"DriverOpts": null
]
[root@localhost ~]# docker run --name web2 -d nginx
4d9789e30cacde1baa2bbe45d9141a085dc8e7213bb0ee7c33712dd8a645088b
[root@localhost ~]# docker inspect web06
"IPAddress": "172.17.0.4",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:06",
"DriverOpts": null
]
//测试一下
[root@localhost ~]# curl 172.17.0.3
<html><body><h1>It works!</h1></body></html>
[root@localhost ~]# curl 172.17.0.4
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
html color-scheme: light dark;
body width: 35em; margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>
<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>
//编写dockerfile
[root@localhost ~]# cat haproxy/Dockerfile
FROM centos
LABEL MAINTAINER='1314444 123@qq.com'
ENV version 2.4.0
ENV PATH /usr/local/haproxy/sbin:$PATH
COPY files /usr/src/
COPY entrypoint.sh /
RUN ["/bin/bash","-c","/usr/src/install.sh"]
EXPOSE 80 8189
WORKDIR /usr/local/haproxy
ENTRYPOINT ["/entrypoint.sh"]
//编写安装脚本
[root@localhost ~]# cat haproxy/files/install.sh
#!/bin/bash
rm -rf /etc/yum.repos.d/*
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-$(awk -F'"' 'NR==5print $2' /etc/os-release).repo
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
yum clean all && yum makecache
echo "alias ls='ls --color'" >> ~/.bashrc
source ~/.bashrc
yum -y install make gcc gcc-c++ pcre-devel bzip2-devel openssl-devel systemd-devel
useradd -r -M -s /sbin/nologin haproxy
cd /usr/src
tar xf haproxy-$version.tar.gz
cd haproxy-$version
make clean
make -j $(nproc) \\
TARGET=linux-glibc \\
USE_OPENSSL=1 \\
USE_ZLIB=1 \\
USE_PCRE=1 \\
USE_SYSTEMD=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
sysctl -p
mkdir /usr/local/haproxy/conf
echo 'local0.* /var/log/haproxy.log' >> /etc/rsyslog.conf
yum -y remove gcc gcc-c++ make
rm -rf /usr/src/* /var/cache/*
//编写开启脚本
[root@localhost ~]# cat haproxy/entrypoint.sh
#!/bin/bash
cat > /usr/local/haproxy/conf/haproxy.cfg << EOF
#--------------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
EOF
count=1
for rs_ip in $(cat /tmp/RSs.txt);do
cat >> /usr/local/haproxy/conf/haproxy.cfg << EOF
server web$count $rs_ip:80 check inter 2000 fall 5
EOF
let count++
done
haproxy -f /usr/local/haproxy/conf/haproxy.cfg -db
//构建haproxy镜像
[root@localhost ~]# docker build -t 1314444/haproxy:v0.1 haproxy
Sending build context to Docker daemon 3.604MB
Step 1/10 : FROM centos
---> 5d0da3dc9764
Step 2/10 : LABEL MAINTAINER='1314444 123@qq.com'
---> Using cache
---> a8b67caa2102
Step 3/10 : ENV version 2.4.0
---> Using cache
---> c48a871bda67
Step 4/10 : ENV PATH /usr/local/haproxy/sbin:$PATH
---> Using cache
---> df0ccbe70aba
Step 5/10 : COPY files /usr/src/
---> Using cache
---> a8b7c9abce9e
Step 6/10 : COPY entrypoint.sh /
---> Using cache
---> 1cd3b00edf13
Step 7/10 : RUN ["/bin/bash","-c","/usr/src/install.sh"]
---> Using cache
---> 89c76dd3e051
Step 8/10 : EXPOSE 80 8189
---> Using cache
---> af832f2ffd4a
Step 9/10 : WORKDIR /usr/local/haproxy
---> Using cache
---> 66adeda8f354
Step 10/10 : ENTRYPOINT ["/entrypoint.sh"]
---> Using cache
---> f50226955caa
Successfully built f50226955caa
Successfully tagged 1314444/haproxy:v0.1
//查看镜像
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
1314444/haproxy v0.1 f50226955caa 3 minutes ago 381MB
//基于新镜像创建haproxy容器
[root@localhost ~]# docker run -d --name haproxy -p 80:80 -p 8189:8189 -v /haproxy_config/:/tmp 1314444/haproxy:v0.1
9bfc78e5dc8c30892f46beb6599d8e4a79843c107310a1ca892d3eea1bd54258
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
504afeb4a2e3 nginx "/docker-entrypoint.…" 24 minutes ago Up 24 minutes 80/tcp web2
94447b9531c3 httpd "httpd-foreground" 24 minutes ago Up 24 minutes 80/tcp web1
9bfc78e5dc8c 1314444/haproxy:v0.1 "/entrypoint.sh" 23 seconds ago Up 22 seconds 0.0.0.0:80->80/tcp, :::80->80/tcp, 0.0.0.0:8189->8189/tcp, :::8189->8189/tcp haproxy
[root@localhost ~]# docker exec -it haproxy /bin/bash
[root@9bfc78e5dc8c haproxy]# pwd
/usr/local/haproxy
[root@9bfc78e5dc8c haproxy]# ss -anlt
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:8189 0.0.0.0:*
LISTEN 0 128 0.0.0.0:80 0.0.0.0:*
用户：admin
密码：admin
http://IP:8189/haproxy_stats
上传镜像仓库
[root@localhost ~]# docker login
Authenticating with existing credentials...
WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store
Login Succeeded
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
1314444/haproxy v0.1 f50226955caa 2 hours ago 381MB
[root@localhost ~]# docker push 1314444/haproxy:v0.1
The push refers to repository [docker.io/1314444/haproxy]
888b23fa1cd4: Pushed
1454c74ea402: Pushed
e573f0878e77: Pushed
74ddd0ec08fa: Mounted from 1314444/httpd
v0.1: digest: sha256:92fb4f3019f78407e6af14ea3f3f7873c5b2dbca1f13ef837ed325220707ce23 size: 1159
基于Alpine 编写Haproxy的Dockerfile（精简版）
//创建dockerfile文件目录以及脚本文件
[root@localhost ~]# mkdir -p haproxy/files
[root@localhost ~]# ls haproxy/
files
[root@localhost ~]# touch haproxy/Dockerfile
[root@localhost ~]# touch haproxy/files/install.sh
[root@localhost ~]# touch haproxy/entrypoint.sh
//项目结构
[root@localhost ~]# tree haproxy/
haproxy/
|-- Dockerfile
|-- entrypoint.sh
`-- files
|-- haproxy-2.4.0.tar.gz
`-- install.sh
1 directory, 4 files
//添加脚本权限
[root@localhost ~]# chmod +x haproxy/entrypoint.sh
[root@localhost ~]# chmod +x haproxy/files/install.sh
[root@localhost ~]# ls -l haproxy/entrypoint.sh
-rwxr-xr-x. 1 root root 1624 Dec 12 18:21 haproxy/entrypoint.sh
[root@localhost ~]# ls -l haproxy/files/install.sh
-rwxr-xr-x. 1 root root 1032 Dec 12 18:16 haproxy/files/install.sh
//创建两台装容器（一台httpd，一台nginx，用来测试）
[root@localhost ~]# docker run --name web1 -d httpd
e84f1c748e99d47bbf856a5403ec1cb3bb301e6a98daaa0d1e32f786699823a1
[root@localhost ~]# docker inspect web05
"Gateway": "172.17.0.2",
"IPAddress": "172.17.0.3",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:05",
"DriverOpts": null
]
[root@localhost ~]# docker run --name web2 -d nginx
4d9789e30cacde1baa2bbe45d9141a085dc8e7213bb0ee7c33712dd8a645088b
[root@localhost ~]# docker inspect web06
"IPAddress": "172.17.0.4",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:06",
"DriverOpts": null
]
//测试一下
[root@localhost ~]# curl 172.17.0.3
<html><body><h1>It works!</h1></body></html>
[root@localhost ~]# curl 172.17.0.4
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
html color-scheme: light dark;
body width: 35em; margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>
<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>
//编写dockerfile
[root@localhost ~]# cat haproxy/Dockerfile
FROM alpine
LABEL MAINTAINER='1314444 123@qq.com'
ENV version 2.4.0
ENV PATH /usr/local/haproxy/sbin:$PATH
COPY files/ /tmp/
COPY entrypoint.sh /
RUN /tmp/install.sh
EXPOSE 80 8189
WORKDIR /usr/local/haproxy
ENTRYPOINT ["/entrypoint.sh"]
//编写安装脚本
[root@localhost ~]# cat haproxy/files/install.sh
#!/bin/sh
sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/' /etc/apk/repositories
apk update
adduser -S -H -s /sbin/nologin haproxy
addgroup haproxy
apk add --no-cache -U make gcc pcre-dev bzip2-dev openssl-dev elogind-dev libc-dev dahdi-tools dahdi-tools-dev libexecinfo libexecinfo-dev ncurses-dev zlib-dev zlib
cd /tmp/
tar xf haproxy-$version.tar.gz
cd haproxy-$version
make clean
make -j $(nproc) \\
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
mkdir /usr/local/haproxy以上是关于基于Alpine 编写Haproxy的Dockerfile的主要内容，如果未能解决你的问题，请参考以下文章
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