文章目录
alpine基础操作创建用户和组apk源apkapk updateapk searchapk addapk del dockerfile基于alpine制作haproxy镜像准备两台网站服务dcokerfile访问测试alpine基础操作
创建用户和组
//创建用户adduser-h #创建家目录-g#用户的详细信息-s #登录shell-G#组-S #创建系统用户-D #不分配密码-H #不创建家目录-u #UID-k #创建框架目录//删除用户deluser
apk源
//alpine默认为国外源，下载较慢，可改为国内源较快一点sed -i 's/dl-//' /etc/apk/repositoriesapk update
apk
apk update
//更新最新镜像源列表apk update
apk search
//查找apk search #查找所以可用软件包-v #查找所以可用软件包及其描述内容-v 'gcc'#通过软件包名称查找软件包-v -d 'docker' #通过描述文件查找特定的软件包
apk add
apk add wget#安装一个软件apk add wget vim #安装多个软件apk add --no-cache -U apache2 #不使用本地镜像源缓存，相当于先执行update，再执行add
apk del
//删除vimapk del vim
dockerfile基于alpine制作haproxy镜像
准备两台网站服务
//httpd服务[root@192 ~]# docker run -d --name web01 httpd c2947f44ce68e701944f67aed2cfc6cb3ed95d85ab596dcaf98b270bfaf5979e[root@192 ~]# docker inspect web01......"Gateway": "172.17.0.1","IPAddress": "172.17.0.3","IPPrefixLen": 16,"IPv6Gateway": "","GlobalIPv6Address": "","GlobalIPv6PrefixLen": 0,"MacAddress": "02:42:ac:11:00:03","DriverOpts": null......[root@192 ~]# curl 172.17.0.3<html><body><h1>It works!</h1></body></html>//nginx服务[root@192 ~]# docker run -d --name web02 nginx52354f10b03ac1918403601a93d5e43acb6275ca5e7c5ed10f55aa8748f0a454[root@192 ~]# docker inspect web02......"Gateway": "172.17.0.1","IPAddress": "172.17.0.4","IPPrefixLen": 16,"IPv6Gateway": "","GlobalIPv6Address": "","GlobalIPv6PrefixLen": 0,"MacAddress": "02:42:ac:11:00:04","DriverOpts": null......[root@192 ~]# 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 andworking. Further configuration is required.</p><p>For online documentation and support please refer to<a href="/"></a>.<br/>Commercial support is available at<a href="/"></a>.</p><p><em>Thank you for using nginx.</em></p></body></html>
dcokerfile
//目录结构[root@192 ~]# tree haproxy/haproxy/├── Dockerfile├── entrypoint.sh└── files├── haproxy├── haproxy-2.4.0.tar.gz└── install.sh1 directory, 5 files//Dockerfile[root@192 haproxy]# cat Dockerfile FROM alpineLABEL MAINTAINER='wawa 1@'ENV PATH /usr/local/haproxy/sbin:$PATHENV version 2.4.0COPY files /tmp/COPY entrypoint.sh /RUN /tmp/install.shEXPOSE 80 8189WORKDIR /usr/local/haproxyENTRYPOINT ["/entrypoint.sh"]//install.sh[root@192 files]# cat install.sh #!/bin/shsed -i 's/dl-//' /etc/apk/repositoriesapk updateadduser -S -H -s /sbin/nologin haproxyaddgroup haproxyapk add --no-cache -U make gcc pcre-dev bzip2-dev openssl-dev elogind-dev libc-dev dahdi-tools dahdi-tools-dev libexecinfo libexecinfo-dev ncurses-dev zlib-dev zlibcd /tmp/tar xf haproxy-${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/confapk del gcc makerm -rf /var/cache/* /tmp/*//entrypoint.sh[root@192 haproxy]# cat entrypoint.sh #!/bin/shcat > /usr/local/haproxy/conf/haproxy.cfg << EOF#--------------全局配置----------------globallog 127.0.0.1 local0 info#log loghost local0 infomaxconn 20480#chroot /usr/local/haproxypidfile /var/run/haproxy.pid#maxconn 4000user haproxygroup haproxydaemon#---------------------------------------------------------------------#common defaults that all the 'listen' and 'backend' sections will#use if not designated in their block#---------------------------------------------------------------------defaultsmode httplog globaloption dontlognulloption httpcloseoption httplog#option forwardforoption redispatchbalance roundrobintimeout connect 10stimeout client 10stimeout server 10stimeout check 10smaxconn 60000retries 3#--------------统计页面配置------------------listen admin_statsbind 0.0.0.0:8189stats enablemode httplog globalstats uri /haproxy_statsstats realm Haproxy\ Statisticsstats auth admin:admin#stats hide-versionstats admin if TRUEstats refresh 30s#---------------web设置-----------------------listen webclusterbind 0.0.0.0:80mode http#option httpchk GET /index.htmllog globalmaxconn 3000balance roundrobincookie SESSION_COOKIE insert indirect nocacheEOFcount=1for rs_ip in $(cat /tmp/RSs.txt);docat >> /usr/local/haproxy/conf/haproxy.cfg << EOFserver web$count $rs_ip:80 check inter 2000 fall 5EOFlet count++done/usr/local/haproxy/sbin/haproxy -f /usr/local/haproxy/conf/haproxy.cfg -db //主机文件[root@192 ~]# mkdir -p /haproxy_host[root@192 ~]# cd /haproxy_host/[root@192 haproxy_host.txt]# cat RSs.txt 172.17.0.3172.17.0.4172.17.0.5172.17.0.6172.17.0.7//构建镜像[root@192 ~]# docker build -t soumnswa/haproxy:v2.0 haproxy[root@192 ~]# docker imagesREPOSITORY TAG IMAGE ID CREATED SIZEsoumnswa/haproxy v2.05a05b658c7b0 4 minutes ago 54.1MB//使用存储卷开启容器[root@192 ~]# docker run -d --name haproxy -p 80:80 -p 8189:8189 -v /haproxy_host:/tmp soumnswa/haproxy:v2.0 [root@192 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES02d22d9695ad soumnswa/haproxy:v2.0 "/entrypoint.sh" 4 seconds ago Up 2 seconds 0.0.0.0:80->80/tcp, :::80->80/tcp, 0.0.0.0:8189->8189/tcp, :::8189->8189/tcp haproxy52354f10b03a nginx "/docker-entrypoint.…" About an hour ago Up About an hour 80/tcp web02c2947f44ce68 httpd "httpd-foreground" About an hour ago Up About an hour 80/tcp web01
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