Dockerfile使用alpine系统制作haproxy镜像
Dockerfile目录结构
[root@localhost haproxyalpine]# tree
.
├── Dockerfile
└── files
├── haproxy-2.5.0.tar.gz
├── haproxycfg.sh
├── install.sh
└── sysctl.conf
Dockerfile
[root@localhost haproxyalpine]# cat Dockerfile
FROM alpine
LABEL MAINTAINER "luochuran 1225514226@qqq.com"
ENV version 2.5.0
ADD files/haproxy-${version}.tar.gz /tmp/
ADD files/install.sh /tmp/
ADD files/haproxycfg.sh /tmp/
ADD files/sysctl.conf /tmp/
RUN /tmp/install.sh
ENTRYPOINT /tmp/haproxycfg.sh
安装haproxy脚本
[root@localhost haproxyalpine]# cat 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/haproxy-2.5.0
make TARGET=linux-musl USE_OPENSSL=1 USE_ZLIB=1 USE_PCRE=1
make install PREFIX=/usr/local/haproxy
cp haproxy /usr/sbin/
mkdir /etc/haproxy
apk del gcc make
rm -rf /tmp/haproxy-2.5.0/ /tmp/install.sh
配置文件
[root@localhost haproxyalpine]# cat files/haproxycfg.sh
#!/bin/sh
cat > /etc/haproxy/haproxy.cfg <> /etc/haproxy/haproxy.cfg <
制作镜像
[root@localhost haproxyalpine]# ls
Dockerfile files
[root@localhost haproxyalpine]# docker build -t haproxy:v3.0 .
[root@localhost haproxyalpine]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
haproxy v3.0 bb2af435dd0d 9 seconds ago 85.1MB
启动容器
[root@localhost ~]# docker run -d --name apache 1225514226/httpd:v1.0
[root@localhost ~]# docker run -d --name nginx 1225514226/nginx:v0.3
[root@localhost haproxyalpine]# docker run -d --name haproxy -p 80:80 -e RSs="172.17.0.4 172.17.0.5" haproxy:v3.0
f9d6e427f11d65eb0117835dafdc490ef043e301a8af3f71888967e2969acbac
[root@localhost haproxyalpine]# docker ps
ConTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f9d6e427f11d haproxy:v3.0 "/bin/sh -c /tmp/hap…" 4 minutes ago Up 4 minutes 0.0.0.0:80->80/tcp, :::80->80/tcp haproxy
d824b80e750e 1225514226/nginx:v0.3 "/usr/local/nginx/sb…" 18 minutes ago Up 18 minutes nginx
daa852698965 1225514226/httpd:v1.0 "/usr/local/apache/b…" 20 minutes ago Up 20 minutes 80/tcp apache
浏览器访问测试