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Docker image migration Experimental environment Operating system: CentOS Linux release 7.3.1611 (Core) docker version: 17.11.0-ce image copies To view an existing docker image: [root@localhost ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE eg_postgre ...

Please indicate the source of Reprint: http://blog.csdn.net/l1028386804/article/details/79032776 1, View local and remote host information # -*- coding:UTF-8 -*- ''' //View local and remote host information //This instance calls the local() method to execute the local (Master) command, and adds the "@ runs'once" modifier to ensu ...

Private Warehouse EstablishmentTo build a private warehouse(1) Download the registry image at the character terminal(2) The client sets the daemon.json file to specify the private warehouse location(3) Generate registry container, open 5000 ports(4) Image labeling: docker tag original image name warehouse IP: port / image name (must be labeled ...

openstack-packstack One-click Online Deploymentopenstack focuses on services, covering network, virtualization, operating systems, servers, and so on.OpenStack released the latest version of Ocata in February 2017. Typically, it is updated about half a year - minor versionI. Eight core services common to OpenStack2. Advantages of OpenStack ...

Reference document https://blog.51cto.com/seekerwolf/2357220 https://www.centos.bz/2017/08/zabbix-zbx_mem_malloc-out-of-memory/ Environmental Science CentOS 7.5.1804 Zabbix 3.4.15 phenomenonzabbix web graphical interface shows that zabbix server is not running. Enter zabbix server systemctl status zabbix server display service to down Troubles ...

df command View the total capacity, used capacity, remaining capacity, etc. of the attached disk, without any parameters, which is displayed by K by default. [root@centos-01 ~]# df //file system 1K-block Already used Available used% Mount point /dev/sda3 29140072 1040404 28099668 4% / devtmpfs ...

epel and ius sources provide a lot of useful software. CentOS uses the yum package manager, and the software source configuration file of Yum is stored in the directory / etc/yum.repos.d /. Back up and delete all CentOS-*.repo entries, and create centos.repo file: [base] name=CentOS-$releasever - Base baseurl=https://mirrors6.tuna.tsinghua.edu. ...

MySQL 8 official version 8.0.11 has been released. It is officially said that MySQL 8 is two times faster than MySQL 5.7, and has brought a lot of improvements and faster performance! The following is the record of my installation process on April 23, 2018. The whole process takes about an hour, and the make & & make install process tak ...

Today we're going to update the Linux introductory course at the same time. Before, I have been studying Linux for a while, but the research is not very thorough. Here is the Linux video of Mogao network, which is just in WeChat's official account. It just started learning. The whole video is based on CentOS 7. In orde ...

Postgresql has a lot of built-in practical functions. Here are the combination and cutting functionsEnvironment: PostgreSQL 9.1.2          CENTOS 5.7 final 1, Combined function1.concat a. Grammar introductionconcat(str "any" [, str "any" [, ...]]) Concatenate all but first arguments with separators. The first parameter is used ...