The working principle of Ansible can be understood from the above figure: the management end supports three methods of local, ssh, and zeromq to connect to the managed end. The default is to use the ssh-based connection. This part corresponds to the connection module in the above architecture diagram; you can press the application type HostInventory (host list) classification is carried out in other ways. The management node implements corresponding operations through various modules. A single module and batch execution of a single command can be called ad-hoc; the management node can implement a collection of multiple tasks through playbooks. Implement a type of functions, such as installation and deployment of web services, batch backup of database servers, etc. We can simply understand playbooks as, the system passes

After receiving feedback from the project, the customer encountered difficulties when deploying the product using the tools we provided, and encountered problems in the host addition step, which prevented the implementation team from continuing to advance the work, so they asked us for help. Environment information: kylin10 architecture: arm has begun to take shape. During the system deployment process, for batch operations of hosts, we used ansible scripts during development. Recently, I encountered a problem with the execution process being stuck. It was initially suspected that ansible was blocked during execution. To verify this, I have sent a command to the field for testing. localhost$date2024-02-19 Sunday 17:30:41CSTlocalhost$ansibleall-i

Official documentation: https://docs.ansible.com/ansible/latest/command_guide/intro_adhoc.html Introduction Ad-hoc command is a command that is temporarily entered and executed, usually used for testing and debugging. They do not need to be saved permanently. Simply put, ad-hoc is "instant command". Commonly used modules 1. command module (default module) The default module is not as powerful as the shell. Basically, the shell module can support the functions of the command module. 【1】Help ansible-doccommand# It is recommended to use the following ansible-doccomm

Linux remote management tools you don’t know: five recommended recommendations In the modern information technology field, the Linux operating system has become one of the preferred operating systems for many businesses and individuals. For Linux system administrators, remote management tools are very important, helping them monitor and manage remote servers quickly and efficiently. This article will introduce five Linux remote management tools that you may not know and provide specific code examples. I hope it will be helpful to you in Linux remote management. tmu

As a powerful operating system, Linux's remote management tools are widely used in server management, network monitoring, etc. In our daily work, we often need to use some specialized tools to remotely manage Linux servers. This article will introduce five practical Linux remote management tools and provide specific code examples to demonstrate their usage. 1.SSHSSH (SecureShell) is an encrypted network protocol used to securely log in and execute commands remotely. Via SSH, users can

Ansible is an open source automated configuration management and deployment tool that helps administrators automate tasks on multiple servers. In Ansible, playbooks are YAML files used to describe automation tasks. Using variables is an important part of Playbook functionality, which can make your Playbook more flexible, reusable, and easier to maintain. The following are some basic uses of variables in Ansible Playbook: Define variables: Variables can be defined in the playbook, inventory file, vars file, or on the command line using the -e parameter. Example: Define variables in Playbook: ----na

How to configure automated deployment tools (such as Ansible) on Linux Introduction: In the process of software development and operation and maintenance, we often encounter situations where applications need to be deployed to multiple servers. Manual deployment is undoubtedly inefficient and error-prone, so configuring an automated deployment tool is essential. This article will introduce how to configure Ansible, a commonly used automated deployment tool, on Linux to achieve fast and reliable application deployment. 1. Install Ansible. Open the terminal and use the following command.

Java docks with the ansible automatic operation and maintenance platform to realize file collection and distribution. This docking mainly has the following two functions: file collection (batch operations on files, including batch collection of common files such as log files from multiple hosts) file distribution (batch operations on files) Perform batch operations, including batch distribution of common files (such as log files) from multiple hosts) Scenario description and ansibleyum installation. Since ansible does not have a Windows installation package, in order to facilitate testing, a Linux environment was built for subsequent work. This time, the yum method is used to install. After using the yum method to install Ansible, first install the EPEL source. yuminstall-yhttp://dl.fedor