ansible definition

Ansible is a free, open-source configuration and automation tool developed for Unix-like systems. It is written in Python and is similar to Chef and Puppet. but there is a difference and advantage that we do not need to install any client in the node. It uses SSH to communicate with nodes. In this article, we will install and configure Ansible on CentOS7 and try to manage the two nodes.

I. Preparation of the first order Ansible installation is complete, below learn how to use ansible.Just like learning a programming language, first write a Hello World sample program. We also write a ansible "Hello World": Ansible 192.168.128.83-m Ping This command means ping 192.168.128.83 through the admin hostThe "-M ping" in the command indicates that the pi

I. Introduction of AnsibleAnsible is a new automated operation tools, based on Python development, the collection of a number of operations tools (puppet, Cfengine, Chef, func, fabric) The advantages of the implementation of batch system configuration, batch program deployment, batch Run command and other functions. Ansible is a module-based operation and does not have the capacity to deploy in bulk. The real batch deployment is the module that

Create ansible and manage container nodes based on DockerScenario: When learning conditions are limited, you can complete Docker and ansible learning with a single VMFIX: Create a custom image and build multiple ansible containers first.Of course, this method is suitable for other similar scenarios.VMS Environment: Os:centos7docker version 1.12.3, build

I. Basic Knowledge: 1. Introduction Ansible is developed based on Python and combines the advantages of many O M tools to implement features such as batch system configuration, batch program deployment, and batch run commands. Ansible works based on modules and does not support batch deployment.The ansible module is actually deployed in batches, and

Ansible through the way of the module to complete some remote management work. You can view all modules through ansible-doc-l, you can use Ansible-doc-s module to view the parameters of a module, or you can use Ansible-doc Help module to view more detailed information about the module. The default module location is/us

First, host planning Create 4 virtual machines as a demo ansible environment, install the operating system as CentOS 7.4. 1 of them as management host, the other 3 as the managed host. IP and host name are: IP host name note 192.168.128.10 Ansible-manager Management host 192.168.128.11 Ansible-demo1 managed host 1 192.168.128.12

Ansible Problems Developed based on paramiko. What is this paramiko? It is a python-Only SSH protocol library. Therefore, fabric and ansible do not need to install client/agents on a remote host because they communicate with remote hosts Based on SSH. The inventory file is used to define the host to be managed. The default location is/etc/ansible/hosts.

Use of ansible Introduction: Ansible is designed for convenient and quick configuration management. With ansible, You can simplify and standardize complex configurations and make them easier to control. Ansible can achieve 100 and 1000 batch deployment. Ansible features: (1

Ansible can be automatically managed using the command line, and Ansible's command-line management tools are supported by a series of modules and parameters, and we can view the module's help information through the Ansible-doc tool. This post will detail the functions and operations of the Ansible module.ansible Command parameters: -V: Output details (m

* Define MAIN.YML and call copy and install. Any directory must have a total entry profile main.ymlVim/etc/ansible/nginx_install/roles/install/tasks/main.yml #内容如下-Include:copy.yml-Include:install.ymlTo this two roles:common and install the definition is complete, next to define a program total Portal configuration file* Define INSTALL/INSTALL.YML Master Entry profile to invoke the secondary total configura

Playbooks Concept:Tasks:Tasks: Specific operational tasks that are supported by each module:Example:-M user-a ' name= password= 'Variables:Variable:Templates:Template:After defining the template, you can implement the variables corresponding to each node to replace the expression itself according to the current nodeThe assigned value is used to perform the operation, and the resulting value is given this parameter for generating configuration files of different configurations.So the template is

1. IntroductionAnsible is a new automated operation tools, based on Python development, the collection of a number of operations tools (puppet, Cfengine, Chef, func, fabric) The advantages of the implementation of batch system configuration, batch program deployment, batch Run command and other functions. Ansible is a module-based operation and does not have the capacity to deploy in bulk. The real batch deployment is the module that

Ansible automated O M tool learning Manual 1. Introduction to ansibleCommon automated O M tools Puppet-developed based on Ruby and adopts a C/S architecture. It is highly scalable and SSL-based, and remote command execution is relatively weak.SaltStack-developed based on Python and adopts the C/S architecture. It is more lightweight than puppet. The configuration syntax uses YMAL to make the configuration script simpler.

1th ChapterThinking1.1How to use one clickAnsibleBuild1.1.1First Step goalThe first thing we want to make clear is that we need to implement a one-click Automation script that executes a script and then automates the installation of Nfs+rsync+sersync andthen lets web01 automatically mount the NFS shared directory. 1.1.2Second step relationship clear and sequentialNow that we have a goal, what we need to do is we need to understand the sequencing of automated installations. since we n

The Confession of op sauce since into the expensive circle, every day need a strong heart to maintain the chaos of the line, every day is the same as the Shell/python in papered fill hole ah, feel every day is in and if else deal with Ah, Every time you spend keywords script, the next time to point to new requirements, can reuse the part of the less to do not want to reuse, very desperate ah, there are wood. Batch Run tool or in Lhck lhcp, each time a long series of commands, all kinds of esc

A1, installation Ansible# yum Install Ansible-y(Can update under Epel yum source/python2.6 above)# wget http://mirrors.sohu.com/fedora-epel/6/x86_64/epel-release-6-8.noarch.rpm# RPM-IVH pel-release-6-8.noarch.rpm2, installation verification;650) this.width=650; "src=" http://s1.51cto.com/wyfs02/M02/82/89/wKiom1dYA0Sze06-AAAmJfMZgx8023.jpg "style=" float: none; "title=" 0.jpg "alt=" Wkiom1dya0sze06-aaamjfmzg

This is a creation in Article, where the information may have evolved or changed. Containers are an increasingly popular development environment. As a developer, you can choose from a variety of tools to manage your containers. This article will introduce you to Ansible Container and show you how to run and test your application in a similar production environment. Entry This example uses a simple Flask Hello world program. This program is served by A

into the machine, with "ssh ‘-o StrictHostKeyChecking=no [emailprotected]‘",and check in:.ssh/authorized_keysto make sure we haven‘t added extra keys that you weren‘t expecting.??[[emailprotected] ~]# sshpass -p123456 ssh-copy-id -i /root/.ssh/id_dsa.pub "-o StrictHostKeyChecking=no [emailprotected]"Now try logging into the machine, with "ssh ‘-o StrictHostKeyChecking=no [emailprotected]‘",and check in:.ssh/authorized_keysto make sure we haven‘t added extra keys that you weren‘t expecting.??[[e

Please be sure to keep the environment consistent To download the required system packages during installation, be sure to connect all the nodes to the Internet . Cluster node information for this installationLab environment: VMware's virtual machines IP Address Host name CPU Memory 192.168.77.133 K8s-m1 6 cores 6G 192.168.77.134 k8s-m2 6 cores 6G 192.168.77.135