Introduction: Ansible is a new automated operations tools, based on Python development, the collection of many 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 deploymen
AnsibleThe automated operation and maintenance system is divided into 3 structuresInstall operating system: OS provisionRepresentative Product: Pxe,cobblerTo install a specific file: OS ConfigRepresentative Product: PuppetTo perform a specific action (command): DeploymentRepresentative Product: AnsibleAnsible General Framework Diagram:650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M01/8A/E2/wKiom1g-KFrDGdwWAAJgLrRJMHY747.png "title=" Ansible.png "alt=" Wkiom1g-kfrdgdwwaajglrrjmhy747.png
For saltstack users, Ansible is a good ssh-based solution. It can greatly simplify the automatic configuration management and process control methods of Unix administrators. It uses the push method to configure the customer system so that all work can be done on the master server side. Its command line mechanism is also very powerful, and you can use the Web UI to implement authorization management and configuration, of course, free of charge is very
Any server can be the master terminal
1, install Epel Source:# RPM-IUVH http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-8.noarch.rpm
2. Install the package:# yum Install Ansible
3, set up SSH password-free login:# # Generate public/private key # Ssh-keygen-t Rsa-p ' # # Write a trusted file (distribute/root/.ssh/id_rsa_storm1.pub to other servers and execute the following on all servers): # CAT/ROOT/.SSH/ID_ Rsa_storm1.pub >>/root
State tree structure[Email protected] salt]# tree..├──app_env #应用环境├──grains #动态变量├──int_env #初始化环境├──modules #模块├──pillar #静态变量├──template #模板└──top.sls #top. SLS is a portal file for configuration managementIntroduce the SLS file hereSLS files are at the heart of the state system. SLS describes the target state of the system.Using subdirectories to organize is a good choice, and each subdirectory describes a resource. Each subdirectory can be repres
When releasing paid Android apps, You need to randomly generate SALT scrambling codes in the file. The following is a Python script (of course you can choose C/Java/SHELL/Perl or anything else)
#! /Usr/bin/python # Filename: gen_salt.py import random salt = [] for I in range (0, 30): salt. append (random. randint (-128,127) print
Tags: mysql5.7 roo salt-ssh AC gcc ash imp iad httpThis is a blog for installation records. Is the step to install the PYTHON3,PIP3,MYSQL,SALT-SSH in a CENTOS7 environment.1 Installing MySQLMARIADB is installed by default in CentOS, this is the branch of MySQL, but in order to need, it is necessary to install MySQL in the system, and after the installation is complete, you can overwrite the mariadb directly
Release date: 2012-6 6Updated on: 2012-12-09
Affected Systems:Oracle MySQLOracle MariaDBDescription:--------------------------------------------------------------------------------Bugtraq id: 56837CVE (CAN) ID: CVE-2012-5627
Oracle MySQL Server is a small relational database management system. MariaDB is a MySQL branch version using the Maria storage engine and is a free open-source database server.
MySQL/MariaDB has a security vulnerability when processing the session User Password
Ansible notesHosts: remote hostUser: Users who are executing the task groupRemote_user: Same as usersudo: If set to Yes, the user performing the task group gets root permission when the task is performed.Sudo_user: If you set user to Tom,sudo as Yes,sudo_user for Jerry, then Tom gets the permissions of the Jerry user.Connection: How to connect to the remote host.# # #gather: Collecting Facts: FactsGather_facts: Unless you explicitly indicate that you
Ecshop Password encryption Method:MD5 32-bit +salt, in short, the plaintext password is encrypted with MD5 once, and then after the resulting MD5 character with the Salt field value (the salt value for the system randomly generated, the generation will no longer change) and then a MD5 encryption, the results are inserted into the password field.So if you forget t
posted it.
1 clone address, you know:
git clone https://github.com/saltstack/halite
2 generate the index.html file:
cd halite/halite./genindex.py -C
3. Install salt-api
Check this installation
Https://github.com/saltstack/salt-api
Or you can directly use yum install salt-api
4. Configure the master file
We configure the
First, Introduction:I have recently inadvertently seen salt with a cron module, here today to introduce the Linux crontab and the management of crontab through the salt cron.Second, the introduction of Linux crontab:The crontab is used to set instructions that are executed periodically. The command reads the instruction from the standard input device and stores it in a "crontab" file for later reading and e
Python uses the mahotas package to implement salt and pepper attacks and pythonmahotas
Import mahotas as mh import numpy as np from matplotlib import pyplot as plt image = mh. imread ('image/lena.jpg ') image = mh. colors. rgb2gray (image) plt. gray () salt = np. random. random (image. shape)>. 975 pepper = np. random. random (image. shape)>. 975 image = mh. stretch (image) image = np. maximum (
The story of BrineTime limit:2000/1000 MS (java/others) Memory limit:65536/32768 K (java/others)Total submission (s): 14657 Accepted Submission (s): 3555Problem description Hang brine when, if drip up to have regular, first drop a drop, stop, then drop two drops, stop for a moment, drop three drops, stop ..., now there is a problem: this bottle of salt water has a total of Vul ml, each drop is a D ml, The speed of each drop is one second (assuming th
When testing, it can be curl-k, but the real integration, but it is not possible.You must not let the token fly.Now it's time to go to this stage. Write a sample first:ImportSaltImportSalt.authImportSalt.logImportsaltapiopts=salt.client.LocalClient (). Optsauth=Salt.auth.LoadAuth (opts) lowstate= {'username':'XXX','Password':'XXX','Eauth':'Pam'}token=Auth.mk_token (lowstate) API=Saltapi. Apiclient (opts) lowstate= {'Client':'Local', ' Fun':'Cmd.run', 'Arg':['ls','/',], 'TGT'
The original data and filter result of linear filter is an arithmetic operation, which is realized by subtraction, such as mean filter (average of pixel gray value in template), Gaussian filter (Gaussian weighted average) and so on. Since linear filters are arithmetic operations, there are fixed templates, Therefore, the transfer function of the filter can be determined and unique (the transfer function is the Fourier transform of the template).
The original data of the nonlinear filter and the
First, the basic introduction of Ansible:
What's the ansible type?Ansible is a very simple IT operations automation tool engine for configuration management, application deployment, internal service orchestration, and more, for hundreds of thousands of managed nodes, based on Python development. She does not need an agent and is easy to deploy, with no other
Ansible playbook component, ansibleplaybook
Core elements of playbook:
Tasks: Task
Variables: Variable
Templates: Template
Handlers: Processor
Roles: Role
Organization format: YAML (also known as a Markup Language)
Syntax: (the list is represented by a horizontal bar. Key-value pairs are separated by colons, and other key-value pairs can be nested in key-value pairs)
Example: name: tom
Age: 21
Gender: Male
Spourse:
Name: lily
Gender: female
Children:
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