SaltStack配置管理--状态间的关系

cz-sjm

（1）require使用　　[root@linux-node1 apache]# pwd
　　/srv/salt/prod/apache
　　[root@linux-node1 apache]# systemctl stop httpd
　　[root@linux-node1 apache]# vim init_require.sls
　　apache-install:
　　pkg.installed:
　　- name: httpd
　　apache-config:
　　file.managed:
　　- name: /etc/httpd/conf/httpd.conf
　　- source: salt://apache/files/httpd1.conf----->将此处的文件改错，模拟配置错误
　　- user: root
　　- group: root
　　- mode: 644
　　apache-service:
　　service.running:
　　- name: httpd
　　- enable: True
　　- require:---------------------------->使用require,表示依赖
　　- pkg: apache-install--------------->依赖的状态模块为pkg模块，id为apache-install
　　- file: apache-config--------------->依赖的状态模块为file模块，id为apache-config
　　[root@linux-node1 apache]# salt -S "192.168.56.11" state.highstate   #执行模块提示会有报错，此时httpd不会正常启动
　　......
　　----------
　　ID: apache-config
　　Function: file.managed
　　Name: /etc/httpd/conf/httpd.conf
　　Result: False
　　Comment: Source file salt://apache/files/httpd1.conf not found
　　Started: 09:48:33.459243
　　Duration: 40.414 ms
　　Changes:
　　----------
　　ID: apache-service
　　Function: service.running
　　Name: httpd
　　Result: False
　　Comment: One or more requisite failed: apache.init.apache-config
　　Changes:
　　----------
　　......
　　Summary for linux-node1.example.com
　　------------
　　Succeeded: 6
　　Failed:    2
　　------------
　　Total states run:     8
　　Total run time:   1.110 s
　　[root@linux-node1 apache]# systemctl status httpd
　　● httpd.service - The Apache HTTP Server
　　Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
　　Active: inactive (dead) since Sat 2018-01-20 09:44:04 CST; 4min 59s ago
　　Docs: man:httpd(8)
　　man:apachectl(8)
　　Process: 65439 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited, status=0/SUCCESS)
　　Main PID: 1025 (code=exited, status=0/SUCCESS)
　　Status: "Total requests: 0; Current requests/sec: 0; Current traffic:   0 B/sec"
　　Jan 17 10:41:59 linux-node1 systemd[1]: Starting The Apache HTTP Server...
　　Jan 17 10:42:02 linux-node1 systemd[1]: Started The Apache HTTP Server.

　　Jan 18 03:49:02 linux-node1 systemd[1]:>　　Jan 20 09:43:53 linux-node1 systemd[1]: Stopping The Apache HTTP Server...
　　Jan 20 09:44:04 linux-node1 systemd[1]: Stopped The Apache HTTP Server.
　　（2）require_in使用
　　[root@linux-node1 apache]# vim init_require_in.sls
　　apache-install:
　　pkg.installed:
　　- name: httpd
　　- require_in:------------------>被依赖
　　- service: apache-service---->被依赖的模块是service，id为apache-service
　　apache-config:
　　file.managed:
　　- name: /etc/httpd/conf/httpd.conf
　　- source: salt://apache/files/httpd.conf
　　- user: root
　　- group: root
　　- mode: 644
　　- require_in:
　　- service: apache-service
　　apache-service:
　　service.running:
　　- name: httpd
　　- enable: True
　　解释说明：require和require_in都能实现依赖的功能，主动和被动的关系不同