SaltStack项目实战（二）
2024-09-17 22:50:02
架构图：
配置思路
(1).系统初始化
Base环境下存放所有系统都要执行的状态，调整内核参数，dns，装zabbix-agent等
(2).功能模块（如：上面的haproxy）
如上面的haproxy nginx php memcached等服务，每一个服务都建一个目录，把每一个服务要执行的状态都放在这个目录下.
(3).业务模块
以业务为单位，一个业务里可能包含haproxy，nginx，php等，业务需要什么服务就把功能模块里对应的服务include
1.编辑配置文件修改file_roots,并且建立对应目录
[root@node1 ~]# vim /etc/salt/master
file_roots:
base:
- /srv/salt/base
test:
- /srv/salt/test
prod:
- /srv/salt/prod
[root@node1 ~]# /etc/init.d/salt-master restart
注：top.sls必须放在base环境下
[root@node1 ~]# mkdir /srv/salt/test 测试环境目录
[root@node1 ~]# mkdir /srv/salt/base 基础环境目录
[root@node1 ~]# mkdir /srv/salt/prod 生产环境目录
2.系统初始化模块
[root@node1 ~]# mkdir /srv/salt/base/init/ #创建一个系统初始化的目录
[root@node1 ~]# mkdir /srv/salt/base/init/files/ #创建一个文件目录，存放一些初始化需要的文件
[root@node1 ~]# cd /srv/salt/base/
[root@node1 base]# tree
├── init
│ ├── files
└── top.sls
[root@node1 base]# cd init/
(1).配置dns
[root@node1 init]# cat dns.sls
/etc/resolv.conf: #这里是指定name，这里没有指定ID
file.managed: #文件管理方法
- source: salt://init/files/resolv.conf #这个路径式相当与配置文件中/srv/salt/base/
- user: root
- group: root
- mode : 644
[root@node1 init]# cat files/resolv.conf
nameserver 192.168.10.1
(2)历史命令显示时间
[root@node1 init]# cat history.sls
/etc/profile:
file.append: #文件追加的方法
- text:
- export HISTTIMEFORMAT="%F %T `whoami`" #执行之后该语句会被追加到/etc/profile
(3).log日志记录谁在什么时间使用了什么命令
[root@node1 init]# cat audit.sls
/etc/bashrc:
file.append:
- text:
- export PROMPT_COMMAND='{ msg=$(history 1|{ read x y;echo $y; });logger "[euid=$(whoami)]":$(who am i):[`pwd`]"$msg";}'
(4)内核调优
[root@node1 init]# cat sysctl.sls
vm.swappiness:
sysctl.present:
- value: 0
net.ipv4.ip_local_port_range:
sysctl.present:
- value: 10000 65000
fs.file-max:
sysctl.present:
- value: 100000 注：上面的路径
/proc/sys/net/ipv4/ip_local_port_range #监听端口
/proc/sys/fs/file-max #打开最大文件数
/proc/sys/vm/swappiness #交换分区
(5)将上面的状态include到 env_init.sls
[root@node1 init]# cat env_init.sls
include:
- init.dns
- init.history
- init.audit
- init.sysctl
(6).编写top.sls执行以上状态
[root@node1 init]# vim /srv/salt/base/top.sls
[root@node1 init]# cat /srv/salt/base/top.sls
base:
'*':
- init.env_init #这里只需要执行init目录下的env_init.sls即可,
(7)注：以上环境中用到的一些命令
export HISTTIMEFORMAT="%F %T `whoami`" #该命令是将%F %T `whoami`命令执行的结果赋给变量HISTTIMEFORMAT，用export将其变成环境变量
export PROMPT_COMMAND='{ msg=$(history 1|{ read x y;echo $y; });logger "[euid=$(whoami)]":$(who am i):[`pwd`]"$msg";}'
执行该命令之后会在log日志里记录用户使用命令的情况，如：
[root@node1 base]# uptime
05:17:38 up 4:08, 4 users, load average: 0.00, 0.00, 0.00
[root@node1 base]# tail -1 /var/log/messages
Aug 11 05:17:38 node1 root: [euid=root]:root pts/3 2017-08-11 04:07 (192.168.10.1):[/srv/salt/base]uptime [root@node1 init]# salt "*" state.highstate test=True #这里可以测试一下前面所配置的是否成功
3.功能模块-------基础包模块
[root@node1 ~]# mkdir /srv/salt/prod/pkg #基础包目录
[root@node1 ~]# cd /srv/salt/prod/pkg/
[root@node1 pkg]# vim pkg-init.sls #安装一些基础的包
[root@node1 pkg]# cat pkg-init.sls
pkg-init: #这里就是ID号，唯一性
pkg.installed: #安装包的模块.方法
- names: #安装包的名字
- gcc
- gcc-c++
- glibc
- make
- autoconf
- openssl
- openssl-devel
4.功能模块--------haproxy模块
#安装haproxy说明：该模块采用编译安装,用模块安装之前先用一台主机测试一下
#cd /usr/local/src/
#tar xf haproxy-1.6.2.tar.gz
#cd haproxy-1.6.2
#make TARGET=linux26 PREFIX=/usr/local/haproxy &&make install PREFIX=/usr/local/haproxy
#vim haproxy.init 启动脚步路径修改
#BIN=/usr/local/haproxy/sbin/$BASENAME
#修改之后
#cp haproxy.init /srv/salt/prod/haproxy/files/ [root@node1 ~]# mkdir /srv/salt/prod/haproxy #haprox模块目录
[root@node1 ~]# mkdir /srv/salt/prod/haproxy/files #存放haprox的一些文件
[root@node1 ~]# ll /srv/salt/prod/haproxy/files/
-rw-r--r--. 1 root root 1538976 Aug 11 2017 haproxy-1.6.2.tar.gzhaproxy #源码包
-rw-r--r--. 1 root root 2395 Aug 11 08:31 haproxy.inithaproxy #启动脚本
[root@node1 ~]# cd /srv/salt/prod/haproxy/
[root@node1 haproxy]# vim install.sls
include:
- pkg.pkg-init #这是个相对目录，意思是调用/srv/salt/prod/目录下的pkg目录下的pkg-init.sls haproxy-install: #ID
file.managed:
- name: /usr/local/src/haproxy-1.6.2.tar.gz #name 声明，没有ID可以把name声明放在ID位置
- source: salt://haproxy/files/haproxy-1.6.2.tar.gz #这里也是相对路径/srv/salt/prod/,源码包所在
- user: root
- group: root
- mode: 755
cmd.run: #将要执行的命令放在这个模块下
- name: cd /usr/local/src/ && tar xf haproxy-1.6.2.tar.gz && cd haproxy-1.6.2 && make TARGET=linux26 PREFIX=/usr/local/haproxy &&make install PREFIX=/usr/local/haproxy
- unless: test -d /usr/local/haproxy #/usr/local/haproxy 目录不存在才执行cmd命令
- require: #指定依赖
- pkg: pkg-init #依赖pkg-init这个ID的pkg模块,这个模块必须执行成功才执行本模块cmd.run
- file: haproxy-install #依赖haproxy-install这个ID的file模块 haproxy-init:
file.managed:
- name: /etc/init.d/haproxy
- source: salt://haproxy/files/haproxy.init
- user: root
- group: root
- mode: 755
- require:
- cmd: haproxy-install
cmd.run:
- name: chkconfig --add haproxy
- unless: chkconfig --list|grep haproxy
- require:
- file: haproxy-init net.ipv4.ip_nonlocal_bind: #/proc/sys/net/ipv4/ip_nonlocal_bind，这里只需要写相对路径
sysctl.present:#sysctl #模块，管理内核模块
- value: 1 #默认不让监听非本地ip，改为1后可以监听 haproxy-config-dir: #ID
file.directory:
- name: /etc/haproxy #创建配置文件目录
- user: root
- group: root
- mode: 755 [root@node1 haproxy]# salt 'node1' state.sls haproxy.install env=prod #手动测试一下
5.业务模块-------haproxy模块
[root@node1 ~]# mkdir /srv/salt/prod/cluster
[root@node1 ~]# mkdir /srv/salt/prod/cluster/files [root@node1 ~]# cd /srv/salt/prod/cluster/files
[root@node1 files]# vim haproxy-outside.cfg #负载均衡文件
global
maxconn 100000
chroot /usr/local/haproxy
uid 99
gid 99
daemon
nbproc 1
pidfile /usr/local/haproxy/logs/haproxy.pid
log 127.0.0.1 local3 info defaults
option http-keep-alive
maxconn 100000
mode http
timeout connect 5000ms
timeout client 5000ms
timeout server 5000ms listen stats
mode http
bind 0.0.0.0:8888
stats enable
stats uri /haproxy-status
stats auth haproxy:saltstack frontend frontend_www_example_com
bind 192.168.10.150:80
mode http
option httplog
log global
default_backend backend_www_example_com
backend backend_www_example_com
option forwardfor header X-REAL-IP
option httpchk HEAD / HTTP/1.0
balance roundrobin
server web-node1 192.168.10.129:8080 check inter 2000 rise 30 fall 15
server web-node2 192.168.10.128:8080 check inter 2000 rise 30 fall 15
[root@node1 cluster]# cd /srv/salt/prod/cluster/
[root@node1 cluster]# cat haproxy-outside.sls
include:
- haproxy.install #执行haproxy目录下的install.sls
haproxy-service:#ID
file.managed:
- name: /etc/haproxy/haproxy.cfg #安装之后配置文件的名字
- source: salt://cluster/files/haproxy-outside.cfg #源配置文件，前面已经写好
- user: root
- group: root
- mode: 644
service.running: #service模块下的running方法，作用：启动服务
- name: haproxy #服务名字
- enable: True #是否开机启动
- reload: True #是否reload，如果不加，配置文件变了会restart
- require:
- cmd: haproxy-init #依赖haproxy-init下的cmd，意思是启动脚本那步必须执行成功
- watch: #关注某个文件状态
- file: haproxy-service #关注haproxy-service ID下的file模块里的文件，文件改变会reload
6.编辑top.sls
[root@node1 base]# cd /srv/salt/base/
[root@node1 base]# vim top.sls
base:
'*':
- init.env_init #所有主机都执行init目录下的env_init.sls
prod:
'node1':
- cluster.haproxy-outside #node1执行cluster目录下的haproxy-outside.sls
'node2':
- cluster.haproxy-outside [root@node1 base]# salt '*' state.highstate test=True #测试执行一下
[root@node1 prod]# salt '*' state.highstate
使用httpd测试一下
[root@node1 prod]# vim /etc/httpd/conf/httpd.conf
Listen 8080
[root@node1 prod]# cat /var/www/html/index.html
node1
[root@node1 prod]# /etc/init.d/httpd restart
[root@node2 ~]# vim /etc/httpd/conf/httpd.conf
[root@node2 prod]# cat /var/www/html/index.html
Node2 Listen 8080
[root@node2 ~]# /etc/init.d/httpd restart 在网页输入下面的地址登录：
192.168.10.129:8888/haproxy-status
192.168.10.128:8888/haproxy-status
用户haproxy密码saltstack
功能模块-----keepalived模块
写之前先找一台主机源码安装测试
http://www.keepalived.org/software/keepalived-1.2.19.tar.gz
[root@node1 tools]# tar xf keepalived-1.2.19.tar.gz
[root@node1 tools]# cd keepalived-1.2.19
[root@node1 keepalived-1.2.19]# ./configure --prefix=/usr/local/keepalived --disable-fwmark
[root@node1 keepalived-1.2.19]# make && make install
keepalived-1.2.19/keepalived/etc/init.d/keepalived.init #启动脚本
keepalived-1.2.19/keepalived/etc/keepalived/keepalived.conf #配置文件
配置keepalived模块路径及相关文件
[root@node1 ~]# mkdir /srv/salt/prod/keepalived
[root@node1 ~]# mkdir /srv/salt/prod/keepalived/files
[root@node1 keepalived]# cp ~/tools/keepalived-1.2.19.tar.gz /srv/salt/prod/keepalived/
files/
[root@node1 tools]#cp keepalived-1.2.19/keepalived/etc/init.d/keepalived.init /srv/salt/prod/keepalived/files/ #复制启动脚本
[root@node1 tools]#cp keepalived-1.2.19/keepalived/etc/keepalived/keepalived.conf /srv/salt/prod/keepalived/files/ #复制配置文件
[root@node1 tools]# cp keepalived-1.2.19/keepalived/etc/init.d/keepalived.sysconfig /srv/salt/prod/keepalived/files/
[root@node1 tools]# cd /srv/salt/prod/keepalived/files/
[root@node1 files]# vim keepalived.init #修改启动脚本路径
daemon /usr/local/keepalived/sbin/keepalived ${KEEPALIVED_OPTIONS}
1.keepalived功能模块
[root@node1 keepalived]# cd /srv/salt/prod/keepalived/
[root@node1 keepalived]# cat install.sls
include:
- pkg.pkg-init
keepalived-install:
file.managed:
- name: /usr/local/src/keepalived-1.2.19.tar.gz
- source: salt://keepalived/files/keepalived-1.2.19.tar.gz
- user: root
- group: root
- mode: 755
cmd.run:
- name: cd /usr/local/src/ && tar xf keepalived-1.2.19.tar.gz && cd keepalived-1.2.19 && ./configure --prefix=/usr/local/keepalived --disable-fwmark && make &&make install
- unless: test -d /usr/local/keepalived
- require:
- pkg: pkg-init
- file: keepalived-install
keepalived-init:
file.managed:
- name: /etc/init.d/keepalived
- source: salt://keepalived/files/keepalived.init
- user: root
- group: root
- mode: 755
cmd.run:
- name: chkconfig --add keepalived
- unless: chkconfig --list |grep keepalived
- require:
- file: keepalived-init
/etc/sysconfig/keepalived:
file.managed:
- source: salt://keepalived/files/keepalived.sysconfig
- user: root
- group: root
- mode: 644
/etc/keepalived:
file.directory:
- user: root
- group: root
- mode: 755 [root@node1 files]# salt '*' state.sls keepalived.install env=prod #手动测试一下
2.keepalived业务模块
[root@node1 ~]# cd /srv/salt/prod/cluster/files/
[root@node1 files]# cat haproxy-outside-keepalived.cfg #keepalived配置文件,里面用到了jinja变量
#configutation file for keepalive
globlal_defs {
notification_email {
saltstack@example.com
}
notification_email_from keepalived@example.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id `ROUTEID`
}
vrrp_instance haproxy_ha {
state `STATEID`
interface eth2
virtual_router_id 36
priority `PRIORITYID`
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.10.130
}
}
[root@node1 ~]# cd /srv/salt/prod/cluster/
[root@node1 cluster]# cat haproxy-outside-keepalived.sls
include:
- keepalived.install keepalived-service:
file.managed:
- name: /etc/keepalived/keepalived.conf
- source: salt://cluster/files/haproxy-outside-keepalived.cfg
- user: root
- group: root
- mode: 644
- template: jinja
{% if grains['fqdn'] == 'node1' %}
- ROUTEID: haproxy_ha
- STATEID: MASTER
- PRIORITYID: 150
{% elif grains['fqdn'] == 'node2' %}
- ROUTEID: haproxy_ha
- STATEID: BACKUP
- PRIORITYID: 100
{% endif %}
service.running:
- name: keepalived
- enable: True
- watch:
- file: keepalived-service [root@node1 cluster]# salt '*' state.sls cluster.haproxy-outside-keepalived env=prod #测试一下
指定服务器执行keepalived模块
[root@node1 salt]# cat /srv/salt/base/top.sls
base:
'*':
- init.env_init
prod:
'node1':
- cluster.haproxy-outside
- cluster.haproxy-outside-keepalived
'node2':
- cluster.haproxy-outside
- cluster.haproxy-outside-keepalived [root@node1 salt]# salt '*' state.highstate #到这步执行成功的话就实现了keepalived+haproxy
遇到问题：发现keepalived 虚拟vip写不上去
查看日志 cat /var/log/messages，发现下面一句
Aug 11 15:10:12 node1 Keepalived_vrrp[29442]: VRRP_Instance(haproxy_ha{) sending 0 priority
haproxy_ha后面打了个空格解决
vrrp_instance haproxy_ha {
系统初始化模块--------------zabbix-agent
在配置文件里设置pillar路径
[root@node1 init]# vim /etc/salt/master
pillar_roots:
base:
- /srv/pillar/base
[root@node1 init]# /etc/init.d/salt-master restart
在pillar里建立top.sls和zabbix.sls
[root@node1 init]# mkdir /srv/pillar/base
[root@node1 pillar]# cd base/
[root@node1 base]# cat top.sls
base:
'*':
- zabbix [root@node1 base]# cat zabbix.sls
zabbix-agent:
Zabbix_Server: 192.168.10.129
[root@node1 init]# cd /srv/salt/base/init/
[root@node1 init]# cat zabbix_agent.sls
zabbix-agent-install:
pkg.installed:
- name: zabbix-agent
file.managed:
- name: /etc/zabbix/zabbix_agentd.conf
- source: salt://init/files/zabbix_agentd.conf
- template: jinja
- defaults:
Server: {{ pillar['zabbix-agent']['Zabbix_Server'] }} #这里将pillar里ID为zabbix-agent，Zabbix_Server的值赋给变量Server
- require:
- pkg: zabbix-agent-install
service.running:
- name: zabbix-agent
- enable: True
- watch:
- pkg: zabbix-agent-install
- file: zabbix-agent-install
编写配置文件利用jinja将Server变量的值传给Server，也就是指定zabbix-Server地址
cp /etc/zabbix/zabbix_agentd.conf /srv/salt/base/init/files/
[root@node1 base]#vim /srv/salt/base/init/files/zabbix_agent.conf
Server=`Server`
将zabbix_agent.sls include到env_init.sls
[root@node1 init]# cat env_init.sls
include:
- init.dns
- init.history
- init.audit
- init.sysctl
- init.zabbix_agent [root@node1 init]# salt '*' state.highstate
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