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名师互学网 > IT > 系统运维 > 运维 > Linux

SaltStack系统初始化

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SaltStack系统初始化

1 关闭SELINUX
[root@master init]# tree selinux/
selinux/
├── files
│   └── config
└── main.sls

1 directory, 2 files
[root@master init]# cat selinux/main.sls 
/etc/selinux/config:
  file.managed:
    - source: salt://init/selinux/files/config
    - user: root
    - group: root
    - mode: '0644'

"setenforce 0":
  cmd.run

2 关闭防火墙
[root@master init]# tree firewalld/
firewalld/
└── main.sls

0 directories, 1 file
[root@master init]# cat firewalld/main.sls 
firewalld.service:
  service.dead:
    - enable: false

3 时间同步(chrony)
[root@master init]# tree chrony/
chrony/
├── files
│   └── chrony.conf
└── main.sls

1 directory, 2 files
[root@master init]# cat chrony/main.sls 
chrony:
  pkg.installed

/etc/chrony.conf:
  file.managed:
    - source: salt://init/chrony/files/chrony.conf
    - user: root
    - group: root
    - mode: '0644'

chronyd.service:
  service.running:
    - enable: true

4 文件描述符,修改/etc/security/limits.conf配置最大文件打开数
[root@master init]# tree kernel/
kernel/
├── files
│   ├── limits.conf
│   └── sysctl.conf
└── main.sls

1 directory, 3 files
[root@master init]# cat kernel/main.sls 
/etc/sysctl.conf:
  file.managed:
    - source: salt://init/kernel/files/sysctl.conf
    - user: root
    - group: root
    - mode: '0644'

/etc/security/limits.conf:
  file.managed:
    - source: salt://init/kernel/files/limits.conf
    - user: root
    - group: root
    - mode: '0644'

'sysctl -p':
  cmd.run

5 内核优化(内存,tcp)
[root@master init]# tree kernel/
kernel/
├── files
│   ├── limits.conf
│   └── sysctl.conf
└── main.sls

1 directory, 3 files
[root@master init]# cat kernel/main.sls 
/etc/sysctl.conf:
  file.managed:
    - source: salt://init/kernel/files/sysctl.conf
    - user: root
    - group: root
    - mode: '0644'

/etc/security/limits.conf:
  file.managed:
    - source: salt://init/kernel/files/limits.conf
    - user: root
    - group: root
    - mode: '0644'

'sysctl -p':
  cmd.run

6 精简开机系统服务(只开启SSHD服务)
[root@master init]# tree service/
service/
└── main.sls

0 directories, 1 file
[root@master init]# cat service/main.sls 
postfix.service:
  service.dead:
    - enable: false

7 历史记录优化history(记录时间,用户)
[root@master init]# tree history/
history/
└── main.sls

0 directories, 1 file
[root@master init]# cat history/main.sls 
/etc/profile:
  file.append:
    - text: 'export HISTTIMEFORMAT="%F %T `whoami` "'

8 设置终端超时时间
[root@master init]# tree timeout/
timeout/
└── main.sls

0 directories, 1 file
[root@master init]# cat timeout/main.sls 
/etc/profile:
  file.append:
    - text: 'export TMOUT=300'

9 配置YUM源
[root@master init]# tree yum/
yum/
├── files
│   ├── centos-7.repo
│   ├── centos-8.repo
│   ├── epel.repo
│   ├── salt-7.repo
│   └── salt-8.repo
└── main.sls

1 directory, 6 files
[root@master init]# cat yum/main.sls 
{% if grains['os'] == 'RedHat' %}
/etc/yum.repos.d/centos-{{ grains['osrelease'] }}.repo:
  file.managed:
    - source: salt://init/yum/files/centos-{{ grains['osrelease'] }}.repo
    - user: root
    - group: root
    - mode: '0644'
{% endif %}

/etc/yum.repos.d/epel.repo:
  file.managed:
    - source: salt://init/yum/files/epel.repo
    - user: root
    - group: root
    - mode: '0644'

/etc/yum.repos.d/salt-{{ grains['osrelease'] }}.repo:
  file.managed:
    - source: salt://init/yum/files/salt-{{ grains['osrelease'] }}.repo
    - user: root
    - group: root
    - mode: '0644'

10 安装各种agent,如zabbix_agent,salt-minion

zabbix_agent

[root@master zabbix_agentd]# tree
.
├── files
│   ├── install.sh
│   ├── zabbix-5.4.4.tar.gz
│   └── zabbix_agentd.conf.j2
└── main.sls

1 directory, 4 files
[root@master zabbix_agentd]# cat main.sls 
include:
  - init.firewalld.main

zabbix-package:
  pkg.installed:
    - pkgs:
      - make
      - gcc
      - gcc-c++
      - pcre-devel

/usr/src/zabbix-5.4.4.tar.gz:
  file.managed:
    - source: salt://init/zabbix_agentd/files/zabbix-5.4.4.tar.gz
    - user: root
    - group: root
    - mode: '0644'

zabbix:
  user.present:
    - shell: /sbin/nologin
    - createhome: false
    - system: true

zabbix-install:
  cmd.script:
    - name: salt://init/zabbix_agentd/files/install.sh
    - unless: test -d /usr/src/zabbix-5.4.4    

/usr/local/etc/zabbix_agentd.conf:
  file.managed:
    - source: salt://init/zabbix_agentd/files/zabbix_agentd.conf.j2
    - user: root
    - group: root
    - mode: '0644'
    - template: jinja
 
'zabbix_agentd':
  cmd.run

salt_agent

[root@master init]# tree salt-minion/
salt-minion/
├── files
│   └── minion.j2
└── main.sls

1 directory, 2 files
[root@master init]# cat salt-minion/main.sls 
include:
  - init.yum.main

salt-minion:
  pkg.installed

/etc/salt/minion:
  file.managed:
    - source: salt://init/salt-minion/files/minion.j2
    - user: root
    - group: root
    - mode: '0644'
    - template: jinja

salt-minion.service:
  service.running:
    - enable: true
    

[root@master init]# cat salt-minion/files/minion.j2
# Set the location of the salt master server. If the master server cannot be
# resolved, then the minion will fail to start.
#master: salt
master: {{ pillar['master_ip'] }}

11 常用基础命令
[root@master init]# tree basepkg/
basepkg/
└── main.sls

0 directories, 1 file
[root@master init]# cat basepkg/main.sls 
include:
  - init.yum.main

install-base-package:
  pkg.installed:
    - pkgs:
      - screen
      - tree 
      - psmisc
      - openssl
      - openssl-devel
      - telnet
      - iftop
      - iotop
      - sysstat
      - wget
      - dos2unix
      - unix2dos
      - lsof
      - net-tools
      - vim-enhanced
      - zip
      - unzip
      - bzip2
      - bind-utils
      - gcc
      - gcc-c++
      - glibc
      - make
      - autoconf

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