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Container data volume What is a container data volume Review of docker concept Package the application and environment into one image data If the data is in the container, we will delete the container and lose the data! Requirement: data can be persistent Mysql, delete the container, delete the database and run! Requirement: MySQL data ...

catalogue 1. Introduction 2. Factors affecting kubernetes scheduling 2.1 nodeName 2.2 nodeSelector 2.3 affinity and anti affinity 2.3.1 node affinity 2.3.2 pod affinity 2.4 taints 2.5 instructions affecting pod scheduling 2.5.1 cordon 2.5.2 drain 2.5.3 delete 1. Introduction The scheduler uses kubernetes' watch mechanism to d ...

k8s installation Kubedm / kubectl / kubelet installation 1. Update apt package index and install packages required to use Kubernetes apt repository sudo apt-get update sudo apt-get install -y apt-transport-https ca-certificates curl 2. Download Google Cloud public signature key: sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyri ...

Eight minutes a, the first two, and then the third, the head card fell off. (record the tragic experience. Just keep grinding the problem. I found this when thinking about the solution: #ifdef LOCAL #include "algo/debug.h" #else #define debug(...) 42 #endif Learn the form: #ifdef identifier Segment 1 #else Segment 2 #endif It means: w ...

Author: xcbeyondBlog: https://xcbeyond.cn/ In the cloud era, containerization has become a fact. Packaging and building software products into Docker images is the most basic and critical step. In the context of Xinchuang, there will be different architectures such as x86 and arm in the cloud environment. Therefore, when building images, you ne ...

redis cluster summary and sentry explanation Why cluster 1. A single redis is unstable. When the redis service goes down, there are no available services. 2. The reading and writing ability of a single redis is limited redis master-slave replication There is only one Master node, and there can be multiple Slave nodes As long as the ne ...

Build kubernetes cluster with kubedm kubeadm Kubedm is a K8s deployment tool that provides kubedm init and kebuadm join for rapid deployment of Kubernetes clusters. The deployment of a Kubernetes cluster can be completed through two instructions: Create a Master node using kubedm initUse kubedm join < master Node IP and port > to j ...

Help command docker version Displays the version information of docker docker info Show docker details docker command -- help View the help documentation for the command Mirror command docker images View all local mirrorsparameter -a displays all mirrors-q display id only docker search You can also go to the docker hub ...

1, docker network 1. docker network principle Docker uses linux bridging. A docker container bridge is virtualized in the host machine. The default is docker0 network. When docker starts a container, it will assign an IP address to the container according to the network segment of the docker bridge. The offset method is called container I ...

❥ it is mainly used for self review, plus experience exchange and sharing, one shift every day ❥ background ❀ a library is a collection of program components that can be reused in different programs. ANSI C + + includes a C++ STL (Standard Template Library), namely C + + Standard Template Library (c + + generic library). It defines commo ...