Introduction to Docker foundation of container technology

We have learned the basic usage of LXC and the simple use of LXC WEB Panel, which can be referred to by interested friends https://www.cnblogs.com/qiuhom-1874/p/12904188.html Today's essay is mainly about the basic knowledge of docker; I. docker and LXC First let's talk about the difference between docker and traditional LXC containers. The tra ...

Posted by drag0n on Fri, 22 May 2020 06:47:21 -0700

PHP quickly uses RabbitMQ to decouple some businesses in the project

preface: Last time, I introduced the installation of RabbitMQ under windows and the addition of AMQP extension of PHP. Here, the code of local test is put into the service, so that is to install it again on Linux. But there is no need to use it directly. It is mainly about the use of control console after RabbitMQ is installed and how to call ...

Posted by angershallreign on Fri, 22 May 2020 01:41:35 -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

Fedora 32 - Enable new BLS specification management GRUB2

rise Fedora's kernel is frequently upgraded.But I found that restarting doesn't use the new kernel.I need to check the GRUB configuration file. ydx@ydx-mf:~ $ cat /etc/default/grub #GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" ...

Posted by Shp0ngl3 on Thu, 21 May 2020 16:15:46 -0700

Linux command ifconfig command

Catalog ifconfig command Show Network Devices Set up network devices ifconfig command Function description: Display or set up network devices usage ifconfig [interface] [up|down] ifconfig interface options | address ... option option Explain -a Displays the status of all interfaces, including information about inactive interf ...

Posted by j0se on Thu, 21 May 2020 10:43:24 -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

K8S deploy stateful application through Statefulset

1, Understanding statefuse 1. Statefuse ensures that pod s retain their identity (container name) and state after rescheduling.2. Statefuse achieves that each pod corresponds to the corresponding PV volume, and each pod can support a set of independent data volumes.3. Provide a stable network identity. Each pod created by a Statefulset has a z ...

Posted by kh411dz on Thu, 21 May 2020 08:38:01 -0700

nginx forward proxy http/https and proxy mail service

nginx forward proxy http/https and proxy mail service Demand background: In the company's Intranet environment, you cannot directly connect to the external network. The intranet service is required to access the Internet through the forward proxy. Installation environment preparation: Nginx itself does not support https protocol request forwa ...

Posted by nats on Thu, 21 May 2020 07:53:45 -0700

What else can rm do besides running

[toc] preface Every time we execute rm commands on the production environment server, we are always on the edge of our pants, because once we accidentally execute the error deletion, we will be ready to run. After all, people are not machines, let alone machines have bug s, hehe. So what if you really delete files that should not be deleted, su ...

Posted by cashflowtips on Thu, 21 May 2020 03:16:52 -0700

Kubedm deploy kubernetes Cluster - kubernetes introduction to actual combat [introduction + Advanced]

1. kubernetes cluster deployment 1.1 kubernetes installation overview To learn kubernetes, first of all, a kubernetes cluster is needed. In order to meet the needs of different scenarios, the community provides different installation methods to meet the needs of various scenarios. Common methods are: MiniKube is a single node installation of ...

Posted by gardnc on Wed, 20 May 2020 21:35:58 -0700