HELM that K8S has to learn

A basic concept helm is similar to package manager under Linux system, such as yum/apt, which can deploy yaml files packaged before into kubernetes quickly and conveniently for management and maintenance. helm: A command-line client tool for creating/packaging/publishing kubernetes application charts that have been created and managed and rem ...

Posted by sunwukung on Wed, 21 Aug 2019 00:25:52 -0700

Paramiko Module of Python Standard Library Series

Paramiko is a Python SSHv2 protocol that provides client and server functionality. Although it uses a Python C to extend low-level encryption paramiko itself is a pure Python interface around the concept of SSH networking. Install Paramiko pip3 ins ...

Posted by gjdunga on Tue, 20 Aug 2019 00:05:42 -0700

Case 17. Archiving the Old Log

There is log rotate in Linux system. It can cut and archive old logs according to our expectation. It can also compress the cut logs and define the retention time of old logs. The requirement of this case is to use shell script to implement logrotate-like functions. Specific requirements are as follows: 1) The log path to be processed: / data/ ...

Posted by psychosquirrel on Sun, 18 Aug 2019 21:20:54 -0700

Start elasticsearch,kibana,cerebro with docker

Uninstall older versions of docker Older versions of docker are called docker or docker-engine.If these are installed, uninstall them and their associated dependencies. sudo yum remove docker \ docker-client \ docker-client-latest \ docker-common \ docker-latest \ ...

Posted by jokerbla on Sun, 18 Aug 2019 20:19:33 -0700

Yan Gang's fread and read, fwrite and write

Articles Catalogue Resources brief introduction fread, fwrite Basic Knowledge 3.1 Nutx configuration options 3.2 Definition of Nutx File Handles and File Descriptors 3.2.1 file_struct file structure 3.2.2 file_opcreation framework 3.2.3 Standard ...

Posted by Stickdragon on Sat, 17 Aug 2019 05:57:20 -0700

Use of Docker Containers

Catalog Docker container and KVM virtualization Installation and Use of Docker The Use of Vulhub in Vulhub Vulhub Based on Docker Docker container and KVM virtualization Docker Container is an open source application container engine that a ...

Posted by sherri on Sat, 17 Aug 2019 01:39:52 -0700

TDengine Code Learning: Timer Implementation

Timer Implementation Code introduction Timer scheduling Examples of timer structure Timer Accuracy Error Test results Complete test code Code introduction Learning TDengine ttimer.c Code in. First, look at the data structures used. #define ...

Posted by ironman32 on Fri, 16 Aug 2019 05:56:55 -0700

Linux Network - Configuration of Firewall Related Commands

Absrtact: This paper mainly studied how to configure firewall in Linux system. iptables command Iptables is not exactly a firewall, the real firewall is a Netfilter running in the system kernel, and iptables is only a tool to operate netfilter. Its main function is to interact with users, get the user's requirements, and convert them into inf ...

Posted by offsprg01 on Fri, 16 Aug 2019 01:07:21 -0700

Record a production on-line problem

Yesterday the project came online, and after verification, I took a deep breath and went online perfectly without any problems.However, half an hour later, I received an alert from the Operations and Maintenance Team that several ports of a serve ...

Posted by Pavel_Nedved on Thu, 15 Aug 2019 20:27:06 -0700

Deep Understanding of Java Virtual Machines - How do Java virtual machines load Java classes?

How do Java virtual machines load Java classes? This is the Java class loading mechanism that is often asked in interviews. After the interview at the beginning of the year, the newbie magpie can also reverse this process. However, it's just a literal recitation, just like an endorsement test in school. tonight! Let's map it to the real world ...

Posted by stolzyboy on Thu, 15 Aug 2019 08:49:52 -0700