I. Overview of AnsibleDue to the rapid development of the Internet, the speed of product replacement gradually accelerated, operations and maintenance personnel to carry out a large number of daily operations, still in accordance with the traditional way of maintenance will make the work inefficient. This is the deployment of automated operations that can accomplish these tasks as safely and efficiently as possible.Ansible is based on the development of Pythen, set up a number of excellent opera
If you do not have written authorization, do not repeat Chapter 4. Use of ansible in large projects
RolesIf your playbooks start expanding beyond what includes can help you solve, or youstart gathering a large number of templates, you may want to use roles. Roles inAnsible allow you to group files together in a defined format. They are essentiallyan extension to includes that handles a few things automatically, and this helps youorganize them inside
Ansible module-lineinfile example, ansible-lineinfileLineinfile module details
The lineinfile module is similar to the sed tool in linux, but the articles on the Internet generally only have simple instances, and there are no examples of complicated points.
The following is a common example of the lineinfile Module I have summarized based on my actual operations.
Directory
More powerful than Ansible automated O M tools, automated and unified installation and deployment _ automated deployment of unifyDeploy1.0, ansible
New features:
Septem
In addition to pass (backup and update) and start (start Service), all automation is achieved.
Note: pass and start are set as service classes. Because of different services, automation cannot be achieved. Except for similar businesses, suc
update-alternatives--Management soft Connect/Word linked (Symbolic links)
Command format
update-alternatives [Options] Command
Detailed description
Update-alternatives can be created, deleted, repaired, soft-connected, and can display information about existing soft links, all of which constitute the Debian alternative system (
February 23, 2016, learn, analyze Ansible code Ansible is a tool for bulk deployment used in operations, which is itself a framework, specific deployment and architectural analysis, and the following article is good. Http://os.51cto.com/art/201409/451927_all.htm First analyze the main file ansible, and the code and comments are as follows: 1. from __future__ Imp
Ubuntu update-alternatives (soft connection management), ubuntualternatives
Update-alternatives-manage soft connections/character links (symbolic links)
Command Format
Update-alternatives [options] command
Detailed description
Update-alternatives can be used to create, delete, repair, and soft connections. It c
Use redis to accelerate ansible and redis to accelerate ansibleUse redis to accelerate ansible
We know that every time we use ansible, we need to collect system information. This step takes a lot of time. We can use redis to save the GATHERING time.1. ansible. cfg
[Defaults] gathering = smartfact_caching = redisfact_
Ansible (10) first exercise and ansible first exerciseSummary
We have learned apt, yum, zypper, copy, and other modules. You must be bored.The following is a practical example.Actual case:
Batch tomcat configuration
Only the knowledge of the above modules is enough for us to orchestrate a Playbook to configure a large number of physical/virtual servers.Actual scenarios
A company has applied for 1
Alternatives is a powerful command under Linux. Can only be performed under root permissions. If there are several commands in the system that are very similar, but cannot be deleted at will, then you can use alternatives to specify a global setting.
Alternatives is often used to install multiple versions of the same software in the same system. For example, in
Do not reprint advanced playbook without written permission
Extra variablesYou may have seen in our template example in the previous chapter that we used avariable called group_names . This is one of the magic variables that are provided byAnsible itself. At the time of writing there are seven such variables, described in thefollowing sections.
External variables
You have seen in the previous template example that we have a variable named group_names, which is a magic variable provided by
Tags: line software deb print replicat remote service section INI endAnsible is an emerging IT automation tool. This article will show you how to configure and manage MySQL master through Ansible, automate the deployment process from the replication environment, and experience the thrill of Ansible simple and fast. Brief introduction: Ansible is a configuration m
Update-alternatives is a tool dedicated to maintaining the system command link in the Ubuntu system, which makes it easy to set which command the system uses by default, which software version, for example, we have both open jdk and Sun JDK Two versions installed in the system. And we want the system to use the sun JDK by default, what should we do? Through the update-alternatives can be very convenient to
http://persevere.iteye.com/blog/1479524Update-alternatives is a tool dedicated to maintaining the system command link in the Ubuntu system, which makes it easy to set which command the system uses by default, which software version, for example, we have both open jdk and Sun JDK Two versions installed in the system. And we want the system to use the sun JDK by default, what should we do? Through the update-alterna
Alternatives is an important version management tool under UNIX, which was first seen in the Debain system, because its powerful usability makes it a large number of porting in various UNIX environments, And we probably most often use the Java OPENJDK Toolkit in the usual version of the conversion, and in the alternatives implementation of multi-version is the replacement system using the command link to im
Ansible-install svn and ansible-svn
Task:
Associate multiple machines with ansible
Familiar with the python ansible API, How can I obtain the execution progress of the playbook through the interface?
Python obtains the svn version number.
1. Install svn
Ubuntu SMP Thu Jan 15 20:21:55 UTC 2015 x86_64 x86_64 x86_64 GNU/
Update-alternatives is a tool dedicated to maintaining the system command link in the Ubuntu system, which makes it easy to set which command the system uses by default, which software version , for example, we install both open jdk and sun in the system JDK two versions, and we want the system to use the sun JDK by default, what to do? Through the update-alternatives can be very convenient to achieve.sudo
Alternatives is a powerful command under Linux. Can only be performed under root authority. If there are several command functions in the system that are very similar, but can not be arbitrarily deleted, then use alternatives to specify a global setting.Alternatives is commonly used to install multiple versions of the same software on the same system. For example, in order to develop the need, I need to ins
Alternatives command usage
Alternatives is a powerful command in Linux. It can only run under the root permission. If the system has several commands with similar functions but cannot be deleted at will, you can use alternatives to specify a global setting.Alternatives is often used to install multiple versions of the same software on the same system. For example
Alternatives command usage
Alternatives is a powerful command in Linux. It can only be executed under the root permission. If the system has several command functions that are similar but cannot be deleted at will, you can use alternatives to specify a global setting.
Alternatives is often used to install multiple vers
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