-- 专职DBA-基于Dcoker环境初始化三台虚拟机 -- 请提前安装好Docker环境。 作者：周万春 微信：lovemysql3306 -- 构建CentOS-SSH系统镜像 [root@mysql-host1 ~]# cd ./docker_images/Dockerfile/system/zhouwanchun-centos-ssh/ [root@mysql-host1 ~/docker_images/Dockerfile/system/zhouwanchun-centos-ssh]# cat Dockerfile # Docker for CentOS # Base image FROM centos:7.9.2009 # Who MAINTAINER zhouwanchun zhou_wanchun@163.com # EPEL RUN rpm -ivh http://mirrors.aliyun.com/epel/epel-release-latest-7.noarch.rpm # Base pkg RUN yum install -y openssl openssh-clients openssh-server openssl-devel supervisor sudo RUN yum -y install bash-completion bash-completion-extras vim vim-enhanced sudo iproute net-tools traceroute wget git lrzsz bind-utils screen tmux tree lsof telnet dos2unix mtr nc nmap tcpdump ntp ntpdate gcc gcc-c++ glibc make zlib-devel ncurses-devel libaio-devel tar zip unzip pigz gzip sysstat perf htop iftop iotop nethogs ps_mem psmisc iptraf dstat numactl bc OpenIPMI-tools openssl-devel xorg-x11-server-utils xorg-x11-utils xorg-x11-xauth httpd-tools sshpass && yum clean all # For sshd RUN ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key RUN ssh-keygen -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key RUN ssh-keygen -A -t dsa -f /etc/ssh/ssh_host_dsa_key # Set root password RUN echo "root:mysql" | chpasswd # Supervisord config ADD supervisord.conf /etc/supervisord.conf ADD sshd.ini /etc/supervisord.d/sshd.ini # Outside port EXPOSE 22 # Supervisord start CMD ["/usr/bin/supervisord", "-c", "/etc/supervisord.conf"] -- supervisor主配置文件的变更只需要修改nodaemon=true [root@mysql-host1 ~/docker_images/Dockerfile/system/zhouwanchun-centos-ssh]# cat supervisord.conf | egrep -v "^;|^$" [unix_http_server] file=/var/run/supervisor/supervisor.sock ; (the path to the socket file) [supervisord] logfile=/var/log/supervisor/supervisord.log ; (main log file;default $CWD/supervisord.log) logfile_maxbytes=50MB ; (max main logfile bytes b4 rotation;default 50MB) logfile_backups=10 ; (num of main logfile rotation backups;default 10) loglevel=info ; (log level;default info; others: debug,warn,trace) pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid) nodaemon=true ; (start in foreground if true;default false) minfds=1024 ; (min. avail startup file descriptors;default 1024) minprocs=200 ; (min. avail process descriptors;default 200) [rpcinterface:supervisor] supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface [supervisorctl] serverurl=unix:///var/run/supervisor/supervisor.sock ; use a unix:// URL for a unix socket [include] files = supervisord.d/*.ini */ [root@mysql-host1 ~/docker_images/Dockerfile/system/zhouwanchun-centos-ssh]# cat sshd.ini [program:sshd] command=/usr/sbin/sshd -D process_name=%(program_name)s autostart=true stdout_logfile_maxbytes=100MB stdout_logfile_backups=10 [root@mysql-host1 ~/docker_images/Dockerfile/system/zhouwanchun-centos-ssh]# docker build -t zhouwanchun/centos-ssh:7.9.2009 . -- 创建网络 [root@mysql-host1 ~]# docker network create --subnet=192.168.56.0/16 dbnet [root@mysql-host1 ~]# docker network ls NETWORK ID NAME DRIVER SCOPE a216a032d7a3 bridge bridge local 6a2ce16fc8a0 dbnet bridge local 14004f866602 host host local d32520d61cf0 none null local [root@mysql-host1 ~]# docker network inspect dbnet [ { "Name": "dbnet", "Id": "6a2ce16fc8a082aa66cd9fc42956efab1b2f7a41c3dd9c619813083bde0ca587", "Created": "2021-02-13T04:33:46.907260473+08:00", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": {}, "Config": [ { "Subnet": "192.168.56.0/16", "Gateway": "192.168.0.1" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": {}, "Options": {}, "Labels": {} } ] -- /disk 软件工具共享存放 -- /u01 数据库程序共享存放 -- db01 计划放置不同的MySQL的data相关数据，需要持久化的数据都放在这里。 [root@mysql-host1 ~]# mkdir -p /disk [root@mysql-host1 ~]# mkdir -p /u01 [root@mysql-host1 ~]# mkdir -p /data/vm/{db01,db02,db03,mgr01,mgr02,mgr03,pxc01,pxc02,pxc03} -- 启动容器 [root@mysql-host1 ~]# docker run -d --privileged -v /disk:/disk -v /u01:/u01 -v /data/vm/db01:/data -v /backup:/backup -p5611:22 --net dbnet --ip 192.168.56.11 --cap-add=NET_ADMIN --name=db01 --hostname=db01 zhouwanchun/centos-ssh:7.9.2009 [root@mysql-host1 ~]# docker run -d --privileged -v /disk:/disk -v /u01:/u01 -v /data/vm/db02:/data -v /backup:/backup -p5612:22 --net dbnet --ip 192.168.56.12 --cap-add=NET_ADMIN --name=db02 --hostname=db02 zhouwanchun/centos-ssh:7.9.2009 [root@mysql-host1 ~]# docker run -d --privileged -v /disk:/disk -v /u01:/u01 -v /data/vm/db03:/data -v /backup:/backup -p5613:22 --net dbnet --ip 192.168.56.13 --cap-add=NET_ADMIN --name=db03 --hostname=db03 zhouwanchun/centos-ssh:7.9.2009 [root@mysql-host1 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 82992f77595e zhouwanchun/centos-ssh:7.9.2009 "/usr/bin/supervisor…" 8 seconds ago Up 7 seconds 0.0.0.0:5613->22/tcp db03 09060282cf3d zhouwanchun/centos-ssh:7.9.2009 "/usr/bin/supervisor…" 16 seconds ago Up 15 seconds 0.0.0.0:5612->22/tcp db02 de2420658bd0 zhouwanchun/centos-ssh:7.9.2009 "/usr/bin/supervisor…" 25 seconds ago Up 24 seconds 0.0.0.0:5611->22/tcp db01 -- 连接容器 [root@mysql-host1 ~]# ssh root@192.168.56.11 [root@mysql-host1 ~]# ssh root@192.168.56.12 [root@mysql-host1 ~]# ssh root@192.168.56.13 -- 宿主机ssh秘钥拷贝到容器虚拟机里面 [root@mysql-host1 ~]# scp -rp ~/.ssh root@192.168.56.11:~/ [root@mysql-host1 ~]# scp -rp ~/.ssh root@192.168.56.12:~/ [root@mysql-host1 ~]# scp -rp ~/.ssh root@192.168.56.13:~/ [root@mysql-host1 ~]# vim .bash_profile # ssh in docker. alias ssh1='/usr/bin/ssh db01' alias ssh2='/usr/bin/ssh db02' alias ssh3='/usr/bin/ssh db03' [root@mysql-host1 ~]# vim /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 # vmware. 10.0.0.11 mysql-host1 10.0.0.12 mysql-host2 10.0.0.13 mysql-host3 10.0.0.1 zhouwanchun # docker vm. 192.168.56.11 db01 mgr01 pxc01 192.168.56.12 db02 mgr02 pxc02 192.168.56.13 db03 mgr03 pxc03 [root@mysql-host1 ~]# ssh db01 [root@mysql-host1 ~]# ssh db02 [root@mysql-host1 ~]# ssh db03 [root@mysql-host1 ~]# ssh1 [root@mysql-host1 ~]# ssh2 [root@mysql-host1 ~]# ssh3 [root@mysql-host1 ~]# ./docker_in.sh db01 [root@mysql-host1 ~]# ./docker_in.sh db02 [root@mysql-host1 ~]# ./docker_in.sh db03