Programmer Group

I installed cent os7 on my old DELL computer as a normal development server, and the notebook usually has WIFI and wired network card, so set this notebook as a server with dual network card. See more( www.omob.cc) When I install cent os7, I will minimize the installation. However, during the installation process, during the g ...

ConfigMap and Secret are two special types of storage volumes in Kubernetes. ConfigMap is a resource object mainly used to provide configuration data to customize program behavior. However, some sensitive configuration information, such as user name, password, key and so on, are usually configured by a resource object such as Secret, which sto ...

Overview of squid proxy server; Overview: Squid Cache (SQUID for short) is http proxy server software. Squid is widely used as a cache server or a cache proxy server. It can be used as a proxy server for users to request data from the web server and cache it. It can filter traffic to help network secu ...

k8s general environmental plan Environmental equipment Two master nodes, two node nodes and two node nodes are installed with nginx for load balancing, failover and floating address vip Deployment process Turn off firewall and security functions systemctl stop firewalld.servicesetenforce 0 Copy the kubernetes directory to master2 (last exp ...

Through Bo Wen Storage Volume of Kubernetes It can be seen that the process of Kubernets to realize data persistence is as follows:Build NFS underlying storage - > create PV - > create PVC - > create podFinally, the container in the pod will realize data persistence! From the above process, it seems that there is no problem, but after ...

Key points: 1. Experimental environment 2. Load balancing scheduler deployment 1, Experimental environment: Based on the previously deployed multi Master cluster architecture, deploy two scheduler servers (nginx is used here) to achieve load balancing: Deployment 1 of kubernetes binary cluster - deployment of etcd storage component and flan ...

Based on the previously deployed multi Master cluster architecture, deploy two scheduler servers (nginx is used here) to achieve load balancing:Again, the environment: role IP address master01 192.168.100.110 master02 192.168.100.109 Scheduler 1 (nginx01) 192.168.100.113 Scheduler 2 (nginx02 ...

Objective: Understanding the linux startup process Main contents: Grub is the bootloader of the boot program 2. linux kernel is the open source kernel of linux 3.busybox is a collection of linux tools Start sequence: Grub - > bzimage > initrd > init > chroot SBIN / init > / etc / inittab > fstab > etc / init.d/rcs Experimen ...

Environmental preparation 1. Configure YUM software warehouse server and desktop machine do the same operation!!!!   # // server: $ vim /etc/yum.repos.d/base.repo [rhce] name = EX300 gpgcheck = 0 baseurl = http://classroom.example.com/content/rhel7.0/x86_64/dvd/ ### Clear the previous software warehouse cache $ yum clean ...

In a series of virtualization solutions, data persistence is a problem that we need to be very concerned about, as is the case with dokcer and Kubernetes. But in Kubernetes, there's a concept of data volumes. 1, Volume introduction We often say: container, pod are very short! What it means is that the life cycle of both the container and Pod i ...