docke容器中：运行启动mysql后台服务

忘是亡心i 2022-03-16 08:46 499阅读 0赞

# 1， 报错：Failed to get D-Bus connection: Operation not permitted #

docker运行centos 一般不能启动后台进程，使用systemctl时，报出这个错误报错：Failed to get D-Bus connection: Operation not permitted

[root@cent7 docker-test]# docker run --privileged -id centos
    d00d1d559f9d837b34a96276daf38896405504ad5ba6c743c6b95d4fdda154f0
    [root@cent7 docker-test]# docker ps
    CONTAINER ID        IMAGE                                              COMMAND             CREATED             STATUS              PORTS                                              NAMES
    d00d1d559f9d        centos                                             "/bin/bash"         3 seconds ago       Up 1 second                                                            elastic_tesla
    
    [root@cent7 docker-test]# docker exec -it d00d1d559f9d  bash
    [root@d00d1d559f9d /]# systemctl
    Failed to get D-Bus connection: Operation not permitted

网上搜索好久，发现了一个解决办法

*  第一步： centos镜像–>替换为： centos/systemd
 *  第二步： 运行 centos/systemd镜像，加入启动参数–privileged

过程如下：

[root@cent7 docker-test]# docker run -id --privileged centos/systemd
    5278311720be74d6b63d9d2ba4ffe0d80d300130f2c35f023b30b7e2ede2516c
    [root@cent7 docker-test]# docker ps
    CONTAINER ID        IMAGE                                              COMMAND             CREAED             STATUS              PORTS                                              NAMES
    5278311720be        centos/systemd                                     "/usr/sbin/init"    2 seonds ago       Up 2 seconds                                                           boring_teeshkova
    
    
    [root@cent7 docker-test]# docker exec -it 5278311720be bash
    [root@5278311720be /]# systemctl
    UNIT                           LOAD   ACTIVE SUB       DESCRIPTION
    -.mount                        loaded active mounted   /
    dev-mqueue.mount               loaded active mounted   POSIX Message Queue File System
    etc-hostname.mount             loaded active mounted   /etc/hostname
    etc-hosts.mount                loaded active mounted   /etc/hosts
    etc-resolv.conf.mount          loaded active mounted   /etc/resolv.conf
    systemd-journald.service       loaded active running   Journal Service

参考前一篇博客安装mysql [https://blog.csdn.net/eyeofeagle/article/details/85010957][https_blog.csdn.net_eyeofeagle_article_details_85010957]

# 2， 正确安装mysql服务， 启动后台进程 #

# 查看是否安装mysql
    [root@5278311720be /]# service mysql status
    bash: service: command not found
    [root@5278311720be /]# yum -y install initscripts
    Installed:
      initscripts.x86_64 0:9.49.46-1.el7
    Dependency Installed:
      iproute.x86_64 0:4.11.0-14.el7           iptables.x86_64 0:1.4.21-28.el7
      libmnl.x86_64 0:1.0.3-7.el7              libnetfilter_conntrack.x86_64 0:1.0.6-1.el7_3
      libnfnetlink.x86_64 0:1.0.1-4.el7        sysvinit-tools.x86_64 0:2.88-14.dsf.el7
    Complete!
    
    ## 查看centos版本， cnetos7在线安装mysql
    [root@5278311720be/]# yum repolist
    Loaded plugins: fastestmirror, ovl
    Loading mirror speeds from cached hostfile
     * base: mirrors.nwsuaf.edu.cn
     * extras: mirrors.nwsuaf.edu.cn
     * updates: mirrors.nwsuaf.edu.cn
    repo id                                        repo name
    base/7/x86_64                                  CentOS-7 - Base
    extras/7/x86_64                                CentOS-7 - Extras
    updates/7/x86_64                               CentOS-7 - Updates
    repolist: 11493
    
    #centos7 安装mysql
    [root@5278311720be /]# yum -y install wget
    
    [root@5278311720be /]# wget -c https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
    --2019-02-27 02:24:57--  https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
    Resolving dev.mysql.com (dev.mysql.com)...
    
    [root@5278311720be /]# rpm -ivh mysql57-community-release-el7-11.noarch.rpm
    warning: mysql57-community-release-el7-11.noarch.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
    Preparing...                          ########################## [100%]
    Updating / installing...
       1:mysql57-community-release-el7-11 ########################## [100%]
    
    [root@5278311720be /]# yum -y install mysql mysql-server
    Installed:
      mysql-community-client.x86_64 0:5.7.25-1.el7   mysql-community-server.x86_64 0:5.7.25-1.el7
    Dependency Installed:
      groff-base.x86_64 0:1.22.2-8.el7                libaio.x86_64 0:0.3.109-13.el7
      mysql-community-common.x86_64 0:5.7.25-1.el7    mysql-community-libs.x86_64 0:5.7.25-1.el7
      net-tools.x86_64 0:2.0-0.24.20131004git.el7     numactl-libs.x86_64 0:2.0.9-7.el7
      perl.x86_64 4:5.16.3-294.el7_6                  perl-Carp.noarch 0:1.26-244.el7
      perl-Encode.x86_64 0:2.51-7.el7                 perl-Exporter.noarch 0:5.68-3.el7
      perl-File-Path.noarch 0:2.09-2.el7              perl-File-Temp.noarch 0:0.23.01-3.el7
      perl-Filter.x86_64 0:1.49-3.el7                 perl-Getopt-Long.noarch 0:2.40-3.el7
      perl-HTTP-Tiny.noarch 0:0.033-3.el7             perl-PathTools.x86_64 0:3.40-5.el7
      perl-Pod-Escapes.noarch 1:1.04-294.el7_6        perl-Pod-Perldoc.noarch 0:3.20-4.el7
      perl-Pod-Simple.noarch 1:3.28-4.el7             perl-Pod-Usage.noarch 0:1.63-3.el7
      perl-Scalar-List-Utils.x86_64 0:1.27-248.el7    perl-Socket.x86_64 0:2.010-4.el7
      perl-Storable.x86_64 0:2.45-3.el7               perl-Text-ParseWords.noarch 0:3.29-4.el7
      perl-Time-HiRes.x86_64 4:1.9725-3.el7           perl-Time-Local.noarch 0:1.2300-2.el7
      perl-constant.noarch 0:1.27-2.el7               perl-libs.x86_64 4:5.16.3-294.el7_6
      perl-macros.x86_64 4:5.16.3-294.el7_6           perl-parent.noarch 1:0.225-244.el7
      perl-podlators.noarch 0:2.5.1-3.el7             perl-threads.x86_64 0:1.87-4.el7
      perl-threads-shared.x86_64 0:1.43-6.el7
    Complete!
    
    [root@5278311720be /]# service mysqld start
    Redirecting to /bin/systemctl start mysqld.service
    [root@5278311720be /]# service mysqld status
    Redirecting to /bin/systemctl status mysqld.service
    ● mysqld.service - MySQL Server
       Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
       Active: active (running) since Wed 2019-02-27 02:49:40 UTC; 3s ago
         Docs: man:mysqld(8)
               http://dev.mysql.com/doc/refman/en/using-systemd.html
      Process: 323 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS)
      Process: 273 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
     Main PID: 325 (mysqld)
       CGroup: /docker/5278311720be74d6b63d9d2ba4ffe0d80d300130f2c35f023b30b7e2ede2516c/system.slice/mysqld.service
               └─325 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid
    Feb 27 02:49:35 5278311720be systemd[1]: Starting MySQL Server...
    Feb 27 02:49:40 5278311720be systemd[1]: Started MySQL Server.
    
    [root@5278311720be /]# cat /var/log/mysqld.log  |grep password
    2019-02-27T02:49:37.629513Z 1 [Note] A temporary password is generated for root@localhost: #peBB9So#/7h
    2019-02-27T02:50:08.627008Z 2 [Note] Access denied for user 'root'@'localhost' (using password: NO)
    2019-02-27T02:50:14.282977Z 3 [Note] Access denied for user 'root'@'localhost' (using password: YES)
    [root@5278311720be /]# mysql -uroot -p#peBB9So#/7h
    mysql: [Warning] Using a password on the command line interface can be insecure.
    Welcome to the MySQL monitor.  Commands end with ; or \g.
    Your MySQL connection id is 4
    Server version: 5.7.25
    
    Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
    Oracle is a registered trademark of Oracle Corporation and/or its
    affiliates. Other names may be trademarks of their respective
    owners.
    Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
    mysql>

[https_blog.csdn.net_eyeofeagle_article_details_85010957]: https://blog.csdn.net/eyeofeagle/article/details/85010957