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1, Ansible automatic deployment K8S cluster 1.1 introduction to ansible Ansible is an it automation tool. It can configure systems, deploy software, and coordinate more advanced IT tasks, such as continuous deployment and rolling update. Ansible is suitable for managing enterprise IT infrastructure ...

Experiment Description: In automatic deployment, other SSH machines will often operate. However, each password authentication is very annoying, especially for a long password, so SSH password free login is essential; When there are many machines, Ansible is often used to distribute and execute SSH password free login scripts, so that each machi ...

Kubernetes Advanced Node Auto Expansion/Scaling Catalog: 1. Cluster AutoScaler cloud vendor expansion/scaling 2. Ansible one-click auto-expanding Node 1,Cluster AutoScalerExtension: Cluster AutoScaler periodically detects whether there are sufficient resources to schedule the newly created Pod and calls Cloud Provider to cr ...

1. Introduction to ansible inventory; Ansible Inventory includes two parts: static Inventory and dynamic Inventory. Static Inventory refers to the host and group specified in the file. Dynamic Inventory refers to obtaining the host list through external script and returning it to ansilbe command according to the format required by ansible. In ...

Ansible Common Modules Modules included in this section: (1) Timing task module cronvar (2) archive module (3) Unpacking module unarchive (4) Download module get_url (5) wait_for module (6) script module Timed Task Module cronvar In addition to the cron module itself, which can manage cron's environment variables, another module, cronvar, can ...

1. The inventory of ansible resources is dynamic. The script specification states that you need to implement the -- list, - host option and output json data. 1. List output: [root@master_101 ansible]# ./dy_host.py --list {     "all": [         "192.168.8.101",         "192.168.8.102"     ],     "web": {         "hosts": [             "192.168. ...

Course wget https://github.com/fanux/sealos/releases/download/v2.0.7/sealos && chmod +x sealos && mv sealos /usr/bin sealos init --passwd YOUR_SERVER_PASSWD \ --master 192.168.0.2 --master 192.168.0.3 --master 192.168.0.4 \ --node 192.168.0.5 \ --pkg-url https://sealyun.oss-cn-beijing.aliyuncs.com/cf6bece970f6da ...

Articles Catalogue Introduction to Ansible roles roles directory structure Create roles Give an example Use roles to install and open httpd services for the host, and add httpd to the firewall list haproxy deployment (load balancing) Implementation of keeping alive + haproxy high availability ...

What is automated operation and maintenance With the continuous development of the information age, IT operation and maintenance has become an important part of the connotation of IT services. In the face of more and more complex business and diversified user needs, expanding IT applications need more and more reasonable modes to ensure ...

Reprinted from http://www.178linux.com/79792 The Ansible command uses Ansible syntax uses ansible-m-a -m NAME, -module-name=NAME: Specifies the module used for execution -u USERNAME, -user=USERNAME: Specify the remote host to run the command with USERNAME -s, -sudo: equivalent to sudo commands on Linux systems -USUDO_USERNAME, -sudo-use ...