docker problem set

The following problems were encountered while installing docker [root@sm-docker249 yum.repos.d]# yum install docker-ce docker-ce-cli containerd.io Loaded plugins: fastestmirror, langpacks docker-ce-nightly | 3.5 kB 00:00 docker-ce-stable | 3.5 kB 00:00 d ...

Posted by wchris on Fri, 22 May 2020 08:03:14 -0700

RabbitMQ Learning III: RabbitMQ Clustering and Load Balancing

I. Cluster Structure RabbitMQ always records the following four types of internal metadata: Queue metadata: name and properties of the queue (persistent, can be deleted automatically); Exchange metadata: Exchange name, type and properties (persistent, etc.); Binding metadata: A table that records how messages are routed to a queue; Vhost metad ...

Posted by alabonte on Thu, 21 May 2020 19:13:47 -0700

php turns pdf into picture and splices picture

explain: 1.pdf to image by installing php extension imagick realization. 2. Due to a series of problems in Windows Extension installation, it is recommended to develop in linux environment, and windows members can try to install. 3. Install ImageMagick imagick for php for Centos. ImageMagick is a set of software series, mainly used for the crea ...

Posted by stennchau on Thu, 21 May 2020 09:13:32 -0700

Install single node Redis

Forward link http://www.python3.vip/tut/webdev/django/17/ Installing Redis on Linux It is recommended to compile and install the source code, so that you can freely choose the Redis version to install. For example, on centos 7, log in as root and execute the following commands to download, decompress, compile and install wget http://downl ...

Posted by Hepp on Sun, 17 May 2020 03:31:23 -0700

centos7 docker installation configuration swarm cluster configuration Portal Management

1. Install dockersystem information [root@localhost yum.repos.d]# cat /etc/centos-release CentOS Linux release 7.8.2003 (Core) [root@localhost yum.repos.d]# uname -a Linux localhost.localdomain 3.10.0-514.el7.x86_64 #1 SMP Tue Nov 22 16:42:41 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux [root@localhost yum.repos.d]# 1. Install yum extension ...

Posted by bugz-2849 on Sat, 16 May 2020 07:42:57 -0700

CentOS? 7.6 install Redis 6.0.1 and enable auto start

background Alibaba cloud's ECS server just bought is going to set up a website of its own. First install the Redis service. Download Redis Download address: https://redis.io/download Current version of Redis 6.0.1 Upgrade gcc #Check whether the gcc version is above 5.3. CentOS 7.6 installs 4.8.5 by default [root@liukai-ecs-01 system]# gcc -v # ...

Posted by blueguitar on Thu, 14 May 2020 07:56:20 -0700

Laobaixue programming - Trace -ftrace

Ftrace and its functions brief introduction Ftrace is a tracker of the kernel, which helps developers to check the operation of the kernel, so as to better analyze performance problems. Ftrace can help us analyze kernel specific events, track dynamic kernel functions, call stacks and stack usage. It can also help us track delays, such as when i ...

Posted by [n00b] on Thu, 14 May 2020 07:02:44 -0700

Docker installation and basic management commands

1, About docker 2, Three core concepts of docker 1. Mirror image 2. Container 3. Warehouse 3, Basic operation of installation and docker 1. Installation and start up 2. Image operation of docker 3. Container operation of docker 1, About docker Docker, as the most popular project in the open source community, is an open source tool for runnin ...

Posted by adityamenon90 on Wed, 13 May 2020 17:50:07 -0700

CentOS7 -- Kickstart + PXE for unattended batch installation configuration

What is Kickstart Installations? Kickstart Installations for unattended automatic installation Kickstart files, which are ready before installation, can be used to automatically perform the installation. It can be saved on a single server system and supports one to many: that is, a single file installs CentOS on multiple computers All Kickst ...

Posted by w.geoghegan on Wed, 13 May 2020 03:41:01 -0700

Deploy ntp services

In the privatization platform, ntp server needs to be deployed. Because it is two physical servers, in order to avoid single point problem, two ntp servers need to be deployed here. Other clients in the same network segment need to calibrate and synchronize the clock with these two servers through ntp service. Since it is a private platform, o ...

Posted by errtu on Sat, 09 May 2020 02:15:44 -0700