Deploying K8s cluster using kubeadm on Ubuntu 20.04 LTS

Deploying K8s cluster using kubeadm on Ubuntu 20.04 LTS 1. Environmental Information MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports) macOS Big Sur Version 11.5.2 2.3 GHz Quad-Core Intel Core i7 16 GB MemoryVirtualBox 6.1.22 r144080Ubuntu 20.04.2 LTS server Although this experiment was conducted on Mac, it is still theoretically ap ...

Posted by Kyori on Tue, 22 Feb 2022 18:25:48 +0100

C/C + + development based on VSCode and Cmake -- environment construction and the first entry case

development environment ubuntu subsystem under Windows Language c/c++ IDE:vscode Environment construction Open the windows subsystem option for Linux Control panel - > Programs - > enable or disable Window functions - > windows subsystem options for Linux Download and install Ubantu In the Window10 version, open the app store and ...

Posted by beebum on Mon, 21 Feb 2022 10:20:21 +0100

(learning notes) robot autonomous navigation starts from scratch. The third step -- installation and configuration of ROS

Reference materials for this article: (VPN access required) cn/noetic/Installation/Ubuntu - ROS Wikihttp://wiki.ros.org/cn/noetic/Installation/Ubuntu preface ROS is an open source meta operating system for robots. In fact, it is not a real operating system. Its underlying tasks such as task scheduling, compilation and addressing are still com ...

Posted by venkychinnu on Mon, 21 Feb 2022 03:13:32 +0100

Robot model and robot state

RobotModel and RobotState classes The RobotModel and RobotState classes are the core classes for accessing robot kinematics. The RobotModel class contains the relationships between all links and joints, including the joint limit attributes they load from URDF. The RobotModel also divides the robot's links and joints into plannin ...

Posted by reto on Sun, 20 Feb 2022 19:34:19 +0100

Ubuntu configuration in non virtual machine environment

Before bloggers special column Ubuntu in is installed on the virtual machine. Here the blogger has integrated a dual system, so we need to reconfigure the Ubuntu environment. Here is a simple record of the process: 1. Prepare the operating system ubuntu-20.04.2.0-desktop-amd64 ISO, USB flash disk startup disk making tool. After starting the ...

Posted by zuperxtreme on Sun, 20 Feb 2022 19:31:21 +0100

3, shell Scripting

shell command The commands that come with the Shell are called built-in commands, which can be implemented through functions inside the Shell. After the Shell is started, the code corresponding to these commands (function body code) is also loaded into memory, so using built-in commands is very fast. It is essentially a self-contained function ...

Posted by Chalks on Sun, 20 Feb 2022 15:02:55 +0100

Installing docker on ubuntu

Reprint: https://www.runoob.com/docker/ubuntu-docker-install.html Docker installation Environmental preparation 1,ubuntu 2. Use Xshell to connect to the remote server for operation Environment view #The system kernel is above 3.10 zzw@zzw-virtual-machine:~$ uname -r 3.10.0-1062.12.1.e17.x86_64 zzw@zzw-virtual-machine:~$ cat /et ...

Posted by The_Walrus on Sun, 20 Feb 2022 01:11:13 +0100

Introduction to Shell programming

Introduction to Shell programming Symbols of references: Single quotation mark: WYSIWYG Double quotation marks: parse variables (treat the input as a whole) Backquotes: parsing commands No quotation marks: similar to double quotation marks Why learn Shell programming Shell will be widely used in Linux system, and we also need to ...

Posted by Salsaboy on Sat, 19 Feb 2022 13:43:00 +0100

[Linux command] - 13 - how to set file special permissions

introduction This article introduces three special permissions of Linux file system: suid, sgid and sticky. Article catalogue 0 × 1. How to view the default permissions of files created by the current user0 × 2. How to add suid permission to a file0 × 3. How to add sgid permission to a folder0 × 4. How to add sticky p ...

Posted by mcsleazycrisps on Sat, 19 Feb 2022 10:29:07 +0100

Implementation of parity alliance chain under Linux

1, Download of parity 1. Open our Linux virtual machine in advance. Then open our folder and create a parity file. Of course, it can also be named after other names, preferably parity.      2. Then enter the PARITY folder, open it in the terminal, and enter the following under the authority of administrator: wget https://re ...

Posted by tskweb on Sat, 19 Feb 2022 10:03:01 +0100