Premise preparation 1 virtual machine image 2 install VMware new CentOS7.7 virtual machine 1 enter VMware, click create virtual machine at this time will pop up the following image interface, click typical, click next step 2 click next step will pop up the next image interface click later Anan
Kubernetes version: 1.16.0 concept pv, whose full name is PersistentVolume (persistent Volume), is an abstraction of the underlying shared storage. It is related to the implementation of the underlying shared storage technology, such as Ceph and Gluste.
Recently, I installed the system in VMware workstations 15 and tried to mount the USB dongle to the virtual machine, only to find that the automatic mount function that worked normally in 14 failed! Every time you restart the physical host, you have to manually mount the USB dongle to the virtual machine.
Basic usage format of awk awk action file name / file name / awk/ action print current, print print, $0 current line [root@zhaocheng ~] # echo "awk is very useful" | awk
Sed is a text processing tool, can replace data, add, select and other specific work format sed options action file name using sed to replace a field in the file, such as writing a yaml file in the middle of a field needs to be modified, you can use sed outside the command
One or two servers in haproxy and keepalived# architecture, which cannot use the same port as the business and cannot represent the sslwebsrv1:8080/8443 haproxy1:80/443 keepaliv of the original business.
After logging in to the TiOps platform, select Multi-Cloud Management-> Cloud account in the left menu to enter the cloud account page. On the cloud account page, you can import three types of accounts, namely: import public cloud, import private cloud, import local area network host, select import public cloud, TiOps support, AWS, Ali.
Nginx is a very popular web server recently, and this time CentOS8 has also added nginx 1.14 to the official source of yum1.14 can bear more concurrency and take up less memory than Apache. CentOS8 uses a new generation of yum, using dnf.
1. Prepare the environment for stand-alone deployment: it is officially recommended that the hardware requirements are more than 1 set of 4C/16G, 4-core 16G2, 4-core 8G1.1: access to software packages: https://bk.tencent.com/download/1.2: Department
FIT2CLOUD Feizhiyun officially released the first container project in November 2019-- KubeOperatorKubeOperator is an open source project, in offline network environment, through visual Web UI in VMw
Preface now we go to Weibo, or online shopping, in fact, the operation is not in front of this device, but one cluster after another. Typically, such a cluster has hundreds of nodes, each of which is a physical machine or virtual machine. Clusters are generally far away from users and are located in the data center. In order for these nodes to cooperate with each other
1. Display / etc directory, starting with a non-letter, followed by a letter and other files or directories of any length and any character. [root@centos7 etc] # ls-d / etc/ [^ [: alpha:]] [: alpha:] * 2
Problem: the svc port of the service in K8s is mapped, but the solution is blocked by accessing the port through the node: the externalTrafficPolicy parameter of service is changed from Local to Cluster
NAME ls-list directory contentsSYNOPSIS ls [OPTION]... [FILE]... DES
1. MyCat basic concept 1. What is a thoroughly open source large database cluster for enterprise application development that supports transactions, ACID, and an enhanced database that can replace MySQL? an enterprise database that can be regarded as a MySQL cluster to replace expensive Or.
What is ntp? ntp's original time server ntp installyum install ntp ntpdatesystemctl enable ntpd & & systemctl restart ntpd
Entry chronychrony is a substitute for ntp, and it is easier to use install chronyyum install chrony# rpm-ql chrony/etc/chrony.conf/u than ntp
1. RPM introduction 1. The full name of RPM meaning RPM is: Red Hat Package Manager, is the RPM software package manager. In the Linux system, the corresponding command is rpm. We see that the name contains Red Hat, which means that it is mainly
Docker data management in Docker, in order to easily view the data generated in the container or share the data in multiple containers, it involves the data management operation of the container. There are only two ways to manage data in a Docker container: data volumes (Data Volume
1) Overview of Nginx Services Nginx was developed by lgor Sysoev in Russia for performance optimization. Its best-known advantages are its stability and low system resource consumption, as well as high standing ability for HTTP concurrent connections (3000 per physical server)
