ansible tool

First, Ansible Basic installationInstall RPM using Yum with epel6,7 and more. However, you must install Python2.4 or a later version of Python.Add Source:Wget-o/etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repoYum Install Ansible-ySecond, ansible configuration1. SSH face key login settings# #生成公钥/Private keySSH-KEYGEN-T RSASsh-copy-id-i ~/.ssh/

-- Ensure cannot be summarized by the PNG process of the PAC Jinjia experiment. Roles introduction: Ansible uses roles to organize playbooks in a hierarchical and structured manner ). Roles can automatically Load Variable files, tasks, and handlers according to the hierarchical structure. Simply put, roles places variables, files, tasks, modules, and processors in separate directories and easily include them, roles is generally used to build servi

Installation of AnsibleAnsible-Based on Python Paramiko development, distributed, no client, lightweight, configuration syntax using Ymal and JINJA2 template language, stronger remote commands to perform operations.Similar automated operations tools are commonly used in many other things:Puppet:-Based on Ruby development, with C/s architecture, strong extensibility, SSL-based, remote command execution is relatively weak.Saltstack:-Based on Python development, the C/S architecture, relatively pup

Playbook1 Playbook is a list consisting of one or more "play"The main function of 2 play is to dress up a pre-merged host into a role defined in advance by a task in ansible. Fundamentally, the so-called task is nothing more than a module that calls Ansible. Organize multiple play in a single playbook, which allows them to join together to sing a drama with a pre-programmed mechanism3 Playbook written in Ya

Ansible is based on modularity, with specific modules to complete specific tasksBased on the Python language implementation, implemented by three key modules of Paramiko, Pyyaml and JINJA2Simple deployment, agentless (no client deployment, client management via SSH protocol)Based on master-slave modeSupports custom modules (other programming language-written modules can also be called via Ansible interface)

Ansible Getting Started experience What does Ansible do? Why does it need to be used in a distributed system?If I have a Java service a now, you can deploy only one server when the volume of traffic is small and availability requirements are not high. When service A to launch online, you can log in directly to the server to publish work. But because of the growth in business volume and the need for availab

Ansible deploy simple high-availability lampAnsible Host: 192.168.152.145HA1 (highavailable): 192.168.152.140ha2:192.168.152.141VIP1 (virtualip): 192.168.152.190vip2:192.168.152.191AP1 (apache+php): 192.168.152.142AP2 (apache+php): 192.168.152.143db:192.168.152.144Configure AnsibleYum-y Install AnsibleVim/etc/ansible/hosts[nginx]192.168.152.140192.168.152.141[ap]192.168.152.142192.168.152.143[db]192.168.152

Environment:Ansible End:ip:192.168.100.129Hostname:node1.lansgg.comClient side:ip:192.168.100.131Hostname:v2.lansgg.comip:192.168.100.132Hostname:v3.lansgg.com[Email protected] ansible]# Pwd/etc/ansible[[email protected] ansible]# cat Hosts[testservers] 192.168.100.131192.168.100.132[[email protected] ansible]#1. Comma

Common ansible Commands Use Ansible-doc-l to see how specific modules are used, here are examples of common ansible simple usage Execution system commands [Root@ansible ~]# ansible pinpoint-m shell-a ' hostname '-o # Execute system command 192.168.0.102 | SUCCESS | rc=0 |

Example:1, Ping module all CCE Group host survival rate[[email protected] ~]# ansible cce-m Ping2. Execute commands with command[Email protected] ~]# ansible cce-m command-a ' cat/etc/redhat-release '3. Execute commands using shell module[Email protected] ~]# ansible cce-m shell-a ' cat/etc/redhat-release '4. copy files using copy module[Email protected] ~]#

Ansible using advanced steps Experimental Environment Group: Srvs Group member host name, system version, and IP Node1 centos-7-core 172.16.253.184 node2 centos-7-core 172.16.254.89 node3 centos-7-core 172.16.253.47 Node4 Centos-6-core 172.16.253.30 iterative function of PlaybookSimple item to use --- -hosts:srvs remote_user:root tasks: -name:copy files tags:copy when:ansible_ Distribution_major_version = = "7" copy:src=/root/

New features:2015-03-11Everything is automated except pass (Backup and update) and start (Start service).Note: Pass and start are set as business classes and cannot be automated due to different types of business. Other than the same kind of business, such as the update is Tomcat war package, etc...Added "list" shortcut keys to quickly manipulate the list rules file.Simplify code redundancy and spell out the original Exec tool class to tools.Fixed a b