Programmer Group

1. Docker-related content2. Introduction to Kubernets3. kuadm Installation k8s 1. Docker-related content 1. Docker Toolset Docker Three Swordsmen: Compse, swarm, machine docker compose: for single machine, container arrangement definition docker swarm: integration of all Docker host resources, cluster management docker machine: In ...

Mirror already exists. Let's learn how to use it. ================================================ Mirror is the most important of the three cores and the most popular keyword since the birth of Docker!   Docker needs a local mirror before running the container with the following priority: 1) Locally existing mirrors 2) Default mirror war ...

Docker MySQL implements master-slave replication (1 Master + 2 Slave) 1. Requirements: The three versions of mysql are identical Initialize the table and start mysql in the background Modify the root password       Modify the configuration file: Start a docker mysql container and enter it, copy its configuration file / etc/mysql/my.cnf to loc ...

Linux systems can view information such as CPU, memory, run time, swap partitions, thread of execution of the system through the top command.The top command is an effective way to find out what's wrong with your system.Not enough memory, not enough CPU processing power, too high IO reading and writing.... [root@foundation6 docker]# top top - ...

The company has been using harbor for a long time and has been using http protocol. Recently, it upgraded to version 1.1.2. By the way, it opens https, so record it. Get the installation package You can go to the official Github of the project. Release Publishing Address Download offline installation packages, or download online installation pa ...

1. Description of existing mirror problems 1.1. Download existing images See Existing Docker Mirrors . The command for Pull mirror canhui/open-mpi-base:v0.0.1 is as follows. $ docker pull canhui/open-mpi-base:v0.0.1 1.2. Problem Description There are two problems with existing mirrors. First, after executing th ...

Actually, this is a running account. Note: Taking Ubuntu 16.04 as an example 1 users Hurry up and build a new user. Don't log in with your root. After the root landing: $ sudo adduser tom #To create users interactively, all you have to do is set up a stronger password. $ sudo vim /etc/sudoers #Increase root privileges for this new user The ...

I. Environmental preparation (Each machine is CentOS 7.6)Each machine executes: yum install chronyd -y systemctl start chronydvim /etc/hosts127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4::1 localhost localhost.localdomain localhost6 localhost6.localdomain6192.168.8.130 master192.168.8.131 node01192.168. ...

background Execute Java programs in the k8s docker environment, because we set the limit of cpu, memory, so the parameters of the JVM are not associated with the parameters we set when the Java program executes, resulting in the CPU and memory that the JVM perceives as the size of the CPU and memory on our k8s work node.The problem with this is ...

Reference resources https://github.com/naver/pinpoint-dockerhttps://www.cnblogs.com/zz0412/p/9333296.htmlhttps://blog.csdn.net/qq_21816375/article/details/80455681 brief introductionPinpoint is a full-link analysis tool, which provides non-intrusive call chain monitoring, method execution details viewing, application status information monit ...