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Configuration Management in SaltStack practice-State relationship

Learning SaltStack

Configuration Management in SaltStack practice-State relationship

1. State-related module

1.1 pkg

1.2 file

1.3 service

1.4 requisites

two。 Practical application

1. State dependent module 1.1 pkg

Status module: pkg

Function: manage package status

Common methods:

Pkg.installed # ensure that the package is installed, or install it if not installed

Pkg.latest # make sure the package is the latest version, if not, upgrade it

Pkg.remove # ensure that the package is uninstalled or, if previously installed, uninstall

Pkg.purge # deletes its configuration file in addition to remove

Official documents:

Https://docs.saltstack.com/en/latest/ref/states/all/salt.states.pkg.html

1.2 file

Status module: file

Function: manage file status

Common methods:

File.managed # ensures that the file exists and is in the corresponding state

File.recurse # ensures that the directory exists and is in the corresponding state

File.absent # make sure the file does not exist and delete it if it does

Official documents:

Https://docs.saltstack.com/en/latest/ref/states/all/salt.states.file.html

1.3 service

Status module: service

Function: manage service status

Common methods:

Service.running # ensure that the service is running and start if it is not running

Service.enabled # ensure that the service boots up automatically

Service.disabled # ensure that the service boot does not start automatically

Service.dead # ensure that the service is not currently running and stop if it is running

Official documents:

Https://docs.saltstack.com/en/latest/ref/states/all/salt.states.service.html

1.4 requisites

Status module: requisites

Function: handle the relationship between states

Common methods:

Require # I rely on a certain state (requirement, need)

Require_in # I am dependent on a certain state (required, needed)

Watch # I follow a certain status (monitoring)

Watch_in # I am followed by a certain status (monitored)

Official documents:

Https://docs.saltstack.com/en/latest/ref/states/requisites.html

two。 Practical application

[root@salt-master112 salt] # cat / srv/salt/dev/lamp.sls

Lamp-pkg-install:

Pkg.installed:

-names:

-php

-php-fpm

-mysql

-php-mysql

-php-pdo

Apache-service:

Pkg.installed:

-name: httpd

File.managed:

-name: / etc/httpd/conf/httpd.conf

-source:

-salt://files/httpd.conf

-user: root

-group: root

-mode: 644

-require:

-pkg: apache-service

Service.running:

-name: httpd

-enable: True

-reload: True

-watch:

-file: apache-service

Mysql-service:

Pkg.installed:

-name: mysql-server

-require_in:

-file: mysql-service

File.managed:

-name: / etc/my.cnf

-source:

-salt://files/my.cnf

-user: root

-group: root

-mode: 644

-watch_in:

-service: mysql-service

Service.running:

-name: mysqld

-enable: True

Php-fpm-service:

Service.running:

-name: php-fpm

-enable: True

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